Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53300008-01 Printed in U.S.A. Form 30XA-5SI Pg 1 9-06 Replaces: 30XA-1SI Book 2 Tab 5c Installation Instructions CONTENTS Page SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-70 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Step 1 — Inspect Shipment . . . . . . . . . . . . . . . . . . . . . . 2 Step 2 — Place, Mount and Rig Unit . . . . . . . . . . . . . 2 • PLACING UNIT • MOUNTING UNIT • RIGGING UNIT Step 3 — Cooler Fluid and Drain Piping Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 • GENERAL • UNITS WITH A HYDRONIC PUMP PACKAGE • UNITS WITHOUT A HYDRONIC PUMP PACKAGE • DUAL CHILLER CONTROL • COOLER FLUID, VENT, AND DRAIN • COOLER PUMP CONTROL • BRINE UNITS • WATER TREATMENT • PREPARATION FOR YEAR-ROUND OPERATION Step 4 — Fill the Chilled Water Loop . . . . . . . . . . . . 48 • WATER SYSTEM CLEANING • WATER TREATMENT • SYSTEM PRESSURIZATION • FILLING THE SYSTEM • SET WATER FLOW RATE • PUMP MODIFICATION/TRIMMING • FREEZE PROTECTION • PREPARATION FOR WINTER SHUTDOWN Step 5 — Make Electrical Connections . . . . . . . . . . 54 • POWER SUPPLY • FIELD POWER CONNECTIONS • POWER WIRING • FIELD CONTROL POWER CONNECTIONS • CARRIER COMFORT NETWORK® COMMUNICATION BUS WIRING • NON-CCN COMMUNICATION WIRING • FIELD CONTROL OPTION WIRING • DUAL CHILLER LEAVING WATER SENSOR Step 6 — Install Accessories . . . . . . . . . . . . . . . . . . . . 69 • ENERGY MANAGEMENT MODULE • REMOTE ENHANCED DISPLAY • LOW AMBIENT TEMPERATURE OPERATION • MINIMUM LOAD ACCESSORY • UNIT SECURITY/PROTECTION ACCESSORIES • COMMUNICATION ACCESSORIES • SERVICE OPTIONS • CONTROL TRANSFORMER Step 7 — Leak Test Unit . . . . . . . . . . . . . . . . . . . . . . . . . 70 Step 8 — Refrigerant Charging . . . . . . . . . . . . . . . . . . 70 • DEHYDRATION • REFRIGERANT CHARGE SAFETY CONSIDERATIONS Installing, starting up, and servicing this equipment can be hazardous due to system pressures, electrical components, and equipment location. Only trained, qualified installers and service mechanics should install, start up, and service this equipment. When working on the equipment, observe precautions in the literature, and on tags, stickers, and labels attached to the equipment. • Follow all safety codes. • Wear safety glasses and work gloves. • Use care in handling, rigging, and setting bulky equipment. INTRODUCTION These instructions cover installation of 30XA080-500 air- cooled liquid chillers with electronic controls and units with factory-installed options (FIOPs). See Fig. 1. Electrical shock can cause personal injury and death. Shut off all power to this equipment during installation. There may be more than one disconnect switch. Tag all discon- nect locations to alert others not to restore power until work is completed. IMPORTANT: This equipment generates, uses, and can radiate radio frequency energy and if not installed and used in accordance with these instructions may cause radio interference. It has been tested and found to comply with the limits of a Class A computing device as defined by FCC (Federal Communications Commission, U.S.A.) regulations, Subpart J of Part 15, which are designed to provide reasonable protection against such interference when operated in a commer- cial environment. AQUAFORCE™ 30XA080-500 Air-Cooled Liquid Chillers
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Catalog No. 04-53300008-01 Printed in U.S.A. Form 30XA-5SI Pg 1 9-06 Replaces: 30XA-1SIBook 2
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37• GENERAL• UNITS WITH A HYDRONIC PUMP PACKAGE• UNITS WITHOUT A HYDRONIC PUMP PACKAGE• DUAL CHILLER CONTROL• COOLER FLUID, VENT, AND DRAIN• COOLER PUMP CONTROL• BRINE UNITS• WATER TREATMENT• PREPARATION FOR YEAR-ROUND OPERATIONStep 4 — Fill the Chilled Water Loop . . . . . . . . . . . . 48• WATER SYSTEM CLEANING• WATER TREATMENT• SYSTEM PRESSURIZATION• FILLING THE SYSTEM• SET WATER FLOW RATE• PUMP MODIFICATION/TRIMMING• FREEZE PROTECTION• PREPARATION FOR WINTER SHUTDOWNStep 5 — Make Electrical Connections . . . . . . . . . . 54• POWER SUPPLY• FIELD POWER CONNECTIONS• POWER WIRING• FIELD CONTROL POWER CONNECTIONS• CARRIER COMFORT NETWORK®
COMMUNICATION BUS WIRING• NON-CCN COMMUNICATION WIRING• FIELD CONTROL OPTION WIRING• DUAL CHILLER LEAVING WATER SENSORStep 6 — Install Accessories . . . . . . . . . . . . . . . . . . . . 69• ENERGY MANAGEMENT MODULE• REMOTE ENHANCED DISPLAY• LOW AMBIENT TEMPERATURE OPERATION• MINIMUM LOAD ACCESSORY• UNIT SECURITY/PROTECTION ACCESSORIES• COMMUNICATION ACCESSORIES• SERVICE OPTIONS• CONTROL TRANSFORMERStep 7 — Leak Test Unit . . . . . . . . . . . . . . . . . . . . . . . . . 70Step 8 — Refrigerant Charging . . . . . . . . . . . . . . . . . . 70• DEHYDRATION• REFRIGERANT CHARGE
SAFETY CONSIDERATIONS
Installing, starting up, and servicing this equipment can behazardous due to system pressures, electrical components, andequipment location. Only trained, qualified installers and servicemechanics should install, start up, and service this equipment.
When working on the equipment, observe precautions in theliterature, and on tags, stickers, and labels attached to theequipment.• Follow all safety codes.• Wear safety glasses and work gloves.• Use care in handling, rigging, and setting bulky equipment.
INTRODUCTIONThese instructions cover installation of 30XA080-500 air-
cooled liquid chillers with electronic controls and units withfactory-installed options (FIOPs). See Fig. 1.
Electrical shock can cause personal injury and death. Shutoff all power to this equipment during installation. Theremay be more than one disconnect switch. Tag all discon-nect locations to alert others not to restore power until workis completed.
IMPORTANT: This equipment generates, uses, andcan radiate radio frequency energy and if not installedand used in accordance with these instructions maycause radio interference. It has been tested and foundto comply with the limits of a Class A computingdevice as defined by FCC (Federal CommunicationsCommission, U.S.A.) regulations, Subpart J of Part 15,which are designed to provide reasonable protectionagainst such interference when operated in a commer-cial environment.
AQUAFORCE™30XA080-500
Air-Cooled Liquid Chillers
2
INSTALLATION
Storage — If the unit is to be stored for a period of time be-fore installation or start-up, be sure to protect the machinefrom construction dirt. Keep protective shipping covers inplace until the machine is ready for installation.
Step 1 — Inspect Shipment — Inspect unit for dam-age upon arrival. If damage is found, immediately file a claimwith the shipping company, and contact your local Carrierrepresentative.
Step 2 — Place, Mount, and Rig the Unit —When considering a location for the unit, be sure to consultNEC (National Electrical Code, U.S.A.) and/or local coderequirements. Allow sufficient space for airflow, wiring, pip-ing, and service. See Fig. 2-10.NOTE: To facilitate refrigerant vent piping, all units have fus-ible plugs with 1/4 in. SAE (Society of Automotive Engineers)flares and pressure reliefs with 3/4 in. NPT fittings (if requiredby local codes).PLACING UNIT — Locate the unit so that the condenserairflow is unrestricted both above and on the sides of the unit.Airflow and service clearances are 6 ft (1.8 m) around the unit.Acceptable clearance on the sides or ends without control boxes
can be reduced to 3 ft (1 m) without sacrificing performance aslong as the remaining three sides are unrestricted. Acceptableclearance on the side with a control box can be reduced to 4 ft(1.3 m) due to NEC regulations, without sacrificing performanceas long as the remaining three sides are unrestricted. Provide am-ple room for servicing and removing the cooler. See Fig. 2-10 forrequired clearances. Local codes for clearances take precedenceover the manufacturer’s recommendations when local codes callfor greater clearances.
If multiple units are installed at the same site, a separation of10 ft (3 m) between the sides of the machines is required tomaintain proper airflow and minimize the chances of condens-er air recirculation.MOUNTING UNIT — The unit may be mounted on a levelpad directly on the base rails, on a raised mounting rail aroundthe unit, or on vibration isolation springs. For all units, ensureplacement area is strong enough to support unit operatingweight. See Tables 1A and 1B. Mounting holes are providedfor securing the unit to the pad, mounting rail or vibrationisolation springs. Bolt the unit securely to pad or rails. If vibra-tion isolators (field-supplied) are required for a particularinstallation, refer to unit weight distribution in Fig. 11A-11C toaid in the proper selection of isolators. The 30XA units can bemounted directly on spring isolators.
3
Fig. 1 — AquaForce™ Chiller Model Number Designation
LEGENDEMM — Energy Management ModuleLON — Local Operating NetworkXL — Across-the-Line Starter
Condenser Coil/Low Sound Options6 – Aluminum Fin/Copper Tube, High Ambient Temperature, Compressor Enclosures8 – Aluminum Pre-Coat Fin/Copper Tube, High Ambient Temperature, Compressor Enclosures9 – Aluminum E-Coat Fin/Copper Tube, High Ambient Temperature, Compressor EnclosuresF – Aluminum Fin/Copper Tube, Standard Ambient Temperature, Compressor EnclosuresH – Aluminum Pre-Coat Fin/Copper Tube, Standard Ambient Temperature, Compressor EnclosuresJ – Aluminum E-Coated Fin/Copper Tube, Standard Ambient Temperature, Compressor Enclosures- – Aluminum Fin/Copper Tube, High Ambient Temperature0 – Copper Fin/Copper Tube, High Ambient Temperature1 – Aluminum Pre-Coat Fin/Copper Tube, High Ambient Temperature2 – Aluminum E-Coat Fin/Copper Tube, High Ambient Temperature3 – Copper E-Coat Fin/Copper Tube, High Ambient Temperature4 – Micro Channel Heat Exchanger (MCHX), High Ambient Temperature7 – Copper Fin/Copper Tube, High Ambient Temperature, Low SoundB – Copper E-Coat Fin/Copper Tube, High Ambient Temperature, Low SoundC – MCHX, High Ambient Temperature, Low SoundG – Copper Fin/Copper Tube, Standard Ambient Temperature, Low SoundK – Copper E-Coat Fin/Copper Tube, Standard Ambient Temperature, Low SoundL – MCHX, Standard Ambient Temperature, Low SoundN – Aluminum Fin/Copper Tube, Standard Ambient TemperatureP – Copper Fin/Copper Tube, Standard Ambient TemperatureQ – Aluminum Pre-Coat Fin/Copper Tube, Standard Ambient TemperatureR – Aluminum E-Coat Fin/Copper Tube, Standard Ambient TemperatureS – Copper E-Coat Fin/Copper Tube, Standard Ambient TemperatureT – MCHX, Standard Ambient Temperature
Cooler/Brine Options0 – Integral Cooler3 – Integral Cooler, Minus One Pass5 – Integral Cooler, Plus One PassB – Integral Cooler, BrineF – Integral Cooler, Minus One Pass, BrineH – Integral Cooler, Plus One Pass, Brine
Packaging/Security OptionsL – Coil Face Shipping Protection (CFSP)0 – CFSP, Skid1 – Skid, Top Crate, Bag3 – CFSP, Coil Trim Panels4 – CFSP, Skid, Coil Trim Panels, Shipping5 – Skid, Top Crate, Bag, Coil Trim Panels7 – CFSP, Coil Trim Panels, Upper & Lower Grilles8 – CFSP, Skid, Coil Trim Panels, Upper & Lower Grilles9 – Skid, Top Crate, Bag, Coil Trim Panels, Upper & Lower GrillesC – CFSP, Trim Panels, Upper & Lower Grilles, Hail GuardsD – CFSP, Skid, Coil Trim Panels, Upper & Lower Grilles, Hail GuardsF – Skid, Top Crate, Bag, Trim Panels, Upper & Lower Grilles, Hail Guards
Controls/Communication Options- – Navigator™ Display0 – Navigator Display, EMM1 – Navigator Display, Service Option2 – Navigator Display, EMM, Service Option3 – Touch Pilot™ Display4 – Touch Pilot Display, EMM5 – Touch Pilot Display, Service Option6 – Touch Pilot Display, EMM, Service Option7 – Navigator Display, BACnet Translator8 – Navigator Display, BACnet Translator, EMM9 – Navigator Display, BACnet Translator, Service OptionB – Navigator Display, BACnet Translator, EMM, Service OptionC – Touch Pilot Display, BACnet TranslatorD – Touch Pilot Display, BACnet Translator, EMMF – Touch Pilot Display, BACnet Translator, Service OptionG – Touch Pilot Display, BACnet Translator, EMM, Service OptionH – Navigator Display, LON TranslatorJ – Navigator Display, LON Translator, EMMK – Navigator Display, LON Translator, Service OptionL – Navigator Display, LON Translator, EMM, Service OptionM – Touch Pilot Display, LON TranslatorN – Touch Pilot Display, LON Translator, EMMP – Touch Pilot Display, LON Translator, Service OptionQ – Touch Pilot Display, LON Translator, EMM, Service Option
Electrical Options- – Single Point Power, XL, Terminal Block, No Control Transformer0 – Single Point Power, Wye-Delta, Terminal Block, No Control Transformer3 – Dual Point Power, XL, Terminal Block, No Control Transformer 4 – Dual Point Power, Wye-Delta, Terminal Block, No Control Transformer 7 – Single Point Power, XL, Disconnect, No Control Transformer 8 – Single Point Power, Wye-Delta, Disconnect, No Control TransformerC – Dual Point Power, XL, Disconnect, No Control TransformerD – Dual Point Power, Wye-Delta, Disconnect, No Control TransformerH – Single Point Power, XL, Terminal Block, Control TransformerJ – Single Point Power, Wye-Delta, Terminal Block, Control TransformerM – Dual Point Power, XL, Terminal Block, Control TransformerN – Dual Point Power, Wye-Delta, Terminal Block, Control TransformerR – Single Point Power, XL, Disconnect, Control TransformerS – Single Point Power, Wye-Delta, Disconnect, Control TransformerW – Dual Point Power, XL, Disconnect, Control TransformerX – Dual Point Power, Wye-Delta, Disconnect, Control Transformer
Refrigeration Circuit Options- – None1 – Suction Service Valves2 – Low Ambient Temperature Head Pressure Control5 – Suction Service Valves, Low Ambient Temperature Head Pressure Control
Hydronic Pump Package Options- – None1 – Single Pump, 5 HP2 – Single Pump, 7.5 HP3 – Single Pump, 10 HP4 – Single Pump, 15 HP7 – Dual Pump, 5 HP8 – Dual Pump, 7.5 HPB – Dual Pump, 10 HPC – Dual Pump, 15 HP
4
Coo
ler
Tube
S
ervi
ce A
rea
Pip
ing
Ent
ranc
e
7/8"
kno
ckou
ts fo
r m
ain
pow
er e
ntry
(7
.48"
[190
mm
] hol
e sp
acin
g)C
ontr
ol B
ox A
ll V
olta
ges
88.0
4[2
236]
68.0
6[1
729]
43.8
5[1
114]
26.5
[673
]
141.
22
[358
7]
121.
17 [3
078]
109.
0 [2
769]
65.7
3[1
670]
5.83
[148
]
TO
P V
IEW
4.15
[105
]
3.93
7.88
[200
]
CO
NTA
CT
SU
RFA
CE
TY
PIC
AL
4 P
LAC
ES
DE
TAIL
"A
"
MO
UN
TIN
G P
LAT
E
[100
]
MO
UN
TIN
G H
OLE
0.87
5 D
IA.[2
2.2]
MO
UN
TIN
G P
LAT
E
1.50
DIA
. [38
.1]
RIG
GIN
G H
OLE
[127
]5.
0
[33]
1.31
1.75 [44]
Fig
. 2 —
30X
A08
0 A
ir-C
oo
led
Liq
uid
Ch
iller
Dim
ensi
on
s
NO
TE
S:
1.U
nit m
ust h
ave
clea
ranc
es a
s fo
llow
s:To
p —
Do
not r
estr
ict
Sid
es a
nd E
nds
— 6
ft fr
om s
olid
sur
face
.2.
Tem
pera
ture
rel
ief
devi
ces
are
loca
ted
on li
quid
line
and
eco
no-
miz
er a
ssem
blie
s an
d ha
ve 1
/ 4-in
. fla
re c
onne
ctio
n.3.
3 /8-
in.
NP
T v
ents
and
dra
ins
loca
ted
in e
ach
cool
er h
ead
at e
ach
end
of c
oole
r.4.
Dra
win
g de
pict
s un
it w
ith s
tand
ard
two-
pass
coo
ler.
Ref
er t
o th
eP
acka
ged
Chi
ller
Bui
lder
pro
gram
for
othe
r co
nfig
urat
ions
.5.
Dim
ensi
ons
are
show
n in
inc
hes;
dim
ensi
ons
in b
rack
ets
are
inm
illim
eter
s.
a30-4402
5
Con
trol
po
wer
ent
ryC
ontr
ol B
oxA
ll V
olta
ges
7/8"
kno
ckou
ts fo
r m
ain
pow
er e
ntry
(7
.48"
[190
mm
] hol
e sp
acin
g)O
ptio
nal N
on-f
used
D
isco
nnec
t Han
dle
D
ispl
ayLo
catio
n
Dis
play
Loca
tion
(380
,460
,575
v)
90.5
5[2
300]
53.9
2[1
370]
8.9
[226
]
(200
,230
v)
49.8
5[1
266]
41.1
[104
4]
22.2
[565
]
88.0
4[2
236]
26.
51
[673
]
3/4
NP
T R
elie
fC
onn.
Fem
ale
5" V
icta
ulic
E
nter
ing
Wat
er
5" V
icta
ulic
Le
avin
g W
ater
Coo
ler
Ven
t3/
8 N
PT
Coo
ler
Dra
in3/
8 N
PT M
ount
ing
Hol
es
Rig
ging
Hol
es(S
ee D
etai
l A)
Con
trol
Box
All
Vol
tage
s
90.5
5[2
300]
19.0
6[4
84]
10.8
[274
]
141.
22
[358
7]
121.
17
[307
8]
109.
03
[276
9]16
.1 [4
09]
3.35
[85]
LEF
T E
ND
VIE
W
FR
ON
T V
IEW
5" V
icta
ulic
Ent
erin
g W
ater
5" V
icta
ulic
Lea
ving
Wat
er
90.5
5[2
300]
19.0
6[4
84]
10.8
[274
]
88.
04
[223
6]68.0
6 [1
729]
RIG
HT
EN
D V
IEW
Fig
. 2 —
30X
A08
0 A
ir-C
oo
led
Liq
uid
Ch
iller
Dim
ensi
on
s (c
on
t)
a30-4403
6
NO
TE
S:
1.U
nit m
ust h
ave
clea
ranc
es a
s fo
llow
s:To
p —
Do
not r
estr
ict
Sid
es a
nd E
nds
— 6
ft fr
om s
olid
sur
face
.2.
Tem
pera
ture
rel
ief
devi
ces
are
loca
ted
on l
iqui
d lin
e an
d ec
onom
izer
ass
em-
blie
s an
d ha
ve 1
/ 4-in
. fla
re c
onne
ctio
n.3.
3 /8-
in. N
PT
ven
ts a
nd d
rain
s lo
cate
d in
eac
h co
oler
hea
d at
eac
h en
d of
coo
ler.
4.D
raw
ing
depi
cts
unit
with
sin
gle-
poin
t po
wer
and
sta
ndar
d tw
o-pa
ss c
oole
r.R
efer
to th
e P
acka
ged
Chi
ller
Bui
lder
pro
gram
for
othe
r co
nfig
urat
ions
.5.
Dim
ensi
ons
are
show
n in
inch
es; d
imen
sion
s in
bra
cket
s ar
e in
mill
imet
ers.
30X
A U
NIT
AB
090
44.1
1 [1
120]
86.9
3 [2
208]
100
44.1
1 [1
120]
87.2
2 [2
215]
110
44.1
1 [1
120]
87.6
2 [2
226]
120
44.1
1 [1
120]
87.1
2 [2
213]
Fig
. 3 —
30X
A09
0-12
0 A
ir-C
oo
led
Liq
uid
Ch
iller
Dim
ensi
on
s
a30-4404
Coo
ler
Tube
S
ervi
ceA
rea
Pip
ing
Ent
ranc
e
7/8"
kno
ckou
ts fo
r m
ain
pow
er e
ntry
(7
.48"
[190
mm
] hol
e sp
acin
g)
Con
trol
Box
All
Vol
tage
s
188.
2 [4
780]
134.
73[3
422]
109.
0 [2
769]
5.51
[140
]
TO
P V
IEW
3.93
7.88
[200
]
CO
NT
AC
T S
UR
FA
CE
TY
PIC
AL
4 P
LAC
ES
DE
TAIL
"A
"
MO
UN
TIN
G P
LA
TE
[100
]
MO
UN
TIN
G H
OLE
0.87
5 D
IA. [
22.2
]
MO
UN
TIN
GP
LAT
E 1.
50 D
IA. [
38.1
]R
IGG
ING
HO
LE
[127
]5.
0
[33]
1.31
1.75 [44]
26.5
1[6
73]
4.1
5[1
05]
157.
54[4
002]
AB
B
85.5
6[2
173]
88
.04
[223
6]
A
88.2
8[2
242]
7
3/4
NP
TR
elie
f Con
n. F
emal
e
Coo
ler
Ven
t3/
8 N
PT
Coo
ler
Dra
in3/
8 N
PT
Mou
ntin
g H
oles
R
iggi
ng H
oles
(See
Det
ailA
)
Con
trol
Box
All
Vol
tage
s
90.5
5[2
300]
19.0
6[4
84]
10.2
7[2
61]
188.
2 [4
780]
157.
54[4
002]
78.0
2 [1
982]
78.0
2 [1
982]
16.1
[409
]
FR
ON
TV
IEW
Con
trol
po
wer
ent
ryC
ontr
ol B
oxA
ll V
olta
ges
7/8"
kno
ckou
ts fo
r m
ain
pow
er e
ntry
(7
.48"
[190
mm
] hol
e sp
acin
g)O
ptio
nal N
on-f
used
D
isco
nnec
t Han
dle
Dis
play
Loca
tion
Dis
play
Loca
tion
(380
,460
,575
v)
90.5
5[2
300]
53.9
2[1
370]
49.8
5[1
266]
41.1
[104
4]
88.0
4[2
236]
LEF
TE
ND
VIE
W
8.9
[226
]
(200
,230
v)
90.5
5[2
300]
19.0
6[4
84]
RIG
HT
EN
D V
IEW
22.2
[565
]
26.5
1[6
73]
5" V
icta
ulic
Lea
ving
Wat
er
5" V
icta
ulic
Ent
erin
g W
ater
19.0
6[4
84]
10.2
7[2
61]
88.2
8[2
242]
85.5
6[2
173]
10.2
7[2
61]
88.0
4[2
236]
88.2
8[2
242]
85.5
6[2
173]
5" V
icta
ulic
Lea
ving
Wat
er
5" V
icta
ulic
Ent
erin
g W
ater
134.
73[3
422]
5" V
icta
ulic
Ent
erin
g W
ater
5" V
icta
ulic
Lea
ving
Wat
er
Dra
in
in
Fig
. 3 —
30X
A09
0-12
0 A
ir-C
oo
led
Liq
uid
Ch
iller
Dim
ensi
on
s (c
on
t)
a30-4405
8
5" V
icta
ulic
E
nter
ing
Wat
er
5" V
icta
ulic
Le
avin
g W
ater
Con
trol
Box
90.5
5[2
300]
21.2
8[5
41]
89.3
6[2
270]85
.61
[217
4]
RIG
HT
EN
D V
IEW
Coo
ler
Tube
S
ervi
ceA
rea
Pip
ing
Ent
ranc
e
Con
trol
Box
, inc
omin
g po
wer
sup
ply
(200
,230
v)
89.3
6[2
270]
85.6
1[2
174]
235.
24[5
975]
135.
06[3
431]
109.
0[2
769]
5.84
[148
]
TO
P V
IEW
7.23
[182
]
Non
-fus
ed
Dis
conn
ect H
andl
efo
r 38
0, 4
60, 5
75 v
Con
trol
Box
(200
/230
V)
Con
trol
pow
er e
ntry
(al
l vol
tage
s)
Con
trol
Box
(a
ll vo
ltage
s)
7/8"
kno
ckou
ts fo
r m
ain
pow
er e
ntry
for
380,
460,
575v
(5.
55” [
141
mm
] hol
esp
acin
g)
90.5
5[2
300]
28.8
1[7
32]
23.6
2[6
00]
235.
24[5
975]
1.58
[283
4]
BA
CK
VIE
W
Dis
play
Loc
atio
n
Con
trol
Box
74[1
880]
2.83
[72]
10.5
8[2
69]
88.0
4[2
236]
22.0
2[5
59]
88.0
4[2
236]
A
B
163.
87[4
162]
A
B
NO
TE
S:
1.U
nit m
ust h
ave
clea
ranc
es a
s fo
llow
s:To
p —
Do
not r
estr
ict
Sid
es a
nd E
nds
— 6
ft fr
om s
olid
sur
face
.2.
Tem
pera
ture
rel
ief
devi
ces
are
loca
ted
on li
q-ui
d lin
e an
d ec
onom
izer
ass
embl
ies
and
have
1 /4-
in. f
lare
con
nect
ion.
3.3 /
8-in
. N
PT
ven
ts a
nd d
rain
s lo
cate
d in
eac
hco
oler
hea
d at
eac
h en
d of
coo
ler.
4.D
raw
ing
depi
cts
unit
with
sta
ndar
d co
nden
ser
fans
, an
d st
anda
rd t
wo-
pass
coo
ler.
Ref
er t
oth
e P
acka
ged
Chi
ller
Bui
lder
pr
ogra
m
for
othe
r co
nfig
urat
ions
.5.
Dim
ensi
ons
are
show
n in
inch
es;
dim
ensi
ons
in b
rack
ets
are
in m
illim
eter
s.
30X
A U
NIT
AB
140
44.6
3 [1
134]
115.
88 [2
943]
160
44.6
1 [1
133]
115.
64 [2
937]
Fig
. 4 —
30X
A14
0,16
0 A
ir-C
oo
led
Liq
uid
Ch
iller
Dim
ensi
on
s
a30-4406
9
Fig
. 4 —
30X
A14
0,16
0 A
ir-C
oo
led
Liq
uid
Ch
iller
Dim
ensi
on
s (c
on
t)
a30-4407
Con
trol
Box
(2
00,2
30v)
Opt
iona
l Non
-fus
ed
Dis
conn
ect H
andl
e
7/8"
kno
ckou
ts fo
rm
ain
pow
er e
ntry
(5
.55"
[141
mm
] ho
le s
paci
ng)
Con
trol
Box
(2
00,2
30,3
80,
460,
575v
)
90.5
5[2
300]
41.1
[104
4]
88.0
4[2
236]
42.8
[1
087]
3/4
NP
T R
elie
f Con
n. F
emal
e
5" V
icta
ulic
Ent
erin
g 5"
Vic
taul
ic L
eavi
ng W
ater
Wat
er
Coo
ler
Dra
in3/
8 N
PT
Coo
ler
Ven
t3/
8 N
PT
Mou
ntin
g H
oles
R
iggi
ng H
oles
(See
Det
ailA
)
Con
trol
Box
in
com
ing
pow
er
supp
ly (
200,
230v
)
90.5
5[2
300]
22.0
2[5
59]
235.
24[5
975]
121.
49[3
086]
109.
03[2
769]
58.0
8[1
475]
33.9
6[8
63]
16.1
[409
]
LEF
T E
ND
VIE
WF
RO
NT
VIE
W
12.7
[3.2
3]
8.9
[226
]
2.5
[63.
5]
7.2
[182
]
2.8
[72]
3.93
7.88
[200
]
CO
NTA
CT
SU
RFA
CE
TY
PIC
AL
4 P
LAC
ES
DE
TAIL
"A
"
MO
UN
TIN
G P
LA
TE
[100
]
MO
UN
TIN
G H
OLE
0.87
5 D
IA. [
22.2
]
MO
UN
TIN
G P
LA
TE
1.50
DIA
. [38
.1]
RIG
GIN
G H
OLE
[127
]5.
0
[33]
1.31
1.75 [44]
22.2
[565
]21
.28
[541
]
89.3
6[2
270]
5" V
icta
ulic
Lea
ving
Wat
er
21.2
8[5
41]
135.
03[3
431]
163.
87[4
162]
inou
t
Dra
in
10
6" V
icta
ulic
E
nter
ing
Wat
er
6" V
icta
ulic
Le
avin
g W
ater
Con
trol
Box
(3
80,4
60,5
75v)
90.5
5[2
300]
22.4
8[5
71]
11.3
[287
]
88.0
4[2
236]70
.16
[178
2]
RIG
HT
EN
D V
IEW
Opt
iona
l Non
-fus
ed
Dis
conn
ect H
andl
efo
r 38
0, 4
00, 5
75v
Con
trol
pow
er e
ntry
7/8"
kno
ckou
ts fo
r m
ain
pow
er e
ntry
380
, 460
, 575
v
(5.5
5" [1
41 m
m] h
ole
spac
ing)
Con
trol
Box
(a
ll vo
ltage
s)
(all
volta
ges)
Con
trol
Box
(200
,230
v in
com
ing
pow
er s
uppl
y co
nnec
tion)
90.5
5[2
300]
28.8
1[7
32]
23.6
2[6
00]
282.
2[7
168]
158.
6 [4
028]
BA
CK
VIE
W
Dis
play
Loc
atio
n
Pip
ing
Ent
ranc
e
Con
trol
Box
88.0
4[2
236]
70.1
6[1
782]
A
282.
22[7
168]
177.
65[4
512]
109.
39[2
779]
61.6
[156
5]
B
TOP
VIE
W
Coo
ler
Tube
S
ervi
ce A
rea
120.
73
[306
7]12
.7[3
23]
Con
trol
Box
, inc
omin
g po
wer
sup
ply
(200
,230
v)N
OT
ES
:1.
Uni
t mus
t hav
e cl
eara
nces
as
follo
ws:
Top
— D
o no
t res
tric
tS
ides
and
End
s —
6 ft
from
sol
id s
urfa
ce.
2.Te
mpe
ratu
re r
elie
f de
vice
s ar
e lo
cate
d on
liqui
d lin
e an
d ec
onom
izer
ass
embl
ies
and
have
1/ 4
-in. f
lare
con
nect
ion.
3.3 /
8-in
. N
PT
ve
nts
and
drai
ns
loca
ted
inea
ch c
oole
r he
ad a
t eac
h en
d of
coo
ler.
4.D
raw
ing
depi
cts
unit
with
st
anda
rd
con-
dens
er
fans
, an
d st
anda
rd
two-
pass
cool
er.
Ref
er
to
the
Pac
kage
d C
hille
rB
uild
er p
rogr
am fo
r ot
her
conf
igur
atio
ns.
5.D
imen
sion
s ar
e sh
own
in i
nche
s; d
imen
-si
ons
in b
rack
ets
are
in m
illim
eter
s.
30X
A U
NIT
AB
180
46.1
2 [1
171]
143.
04 [3
633]
200
46.1
5 [1
172]
142.
97 [3
631]
Fig
. 5 —
30X
A18
0,20
0 A
ir-C
oo
led
Liq
uid
Ch
iller
Dim
ensi
on
s
a30-4408
11
Opt
iona
l Non
-fus
ed
Dis
conn
ect H
andl
e
7/8"
kno
ckou
ts fo
r m
ain
pow
er e
ntry
(5
.55"
[141
mm
] ho
le s
paci
ng)
Con
trol
Box
(2
00,2
30,3
80,
460,
575v
)Con
trol
Box
(2
00,2
30v)
90.5
5[2
300]
41.1
[104
4]
88.0
4[2
236]
42.8
[1
087] LE
FT
EN
D V
IEW
FR
ON
T V
IEW
3/4
NP
T R
elie
f C
onn.
Fem
ale
6"
Vic
taul
ic E
nter
ing
Wat
er
6" V
icta
ulic
Lea
ving
Wat
erC
oole
r V
ent
3/8
NP
T
Coo
ler
Dra
in3/
8 N
PT
Mou
ntin
g H
oles
Rig
ging
Hol
es(S
ee D
etai
l A)
90.5
5[2
300]
22.4
8[5
71]
11.3
[287
]
282.
22[7
168]
177.
65[4
512]
78.0
2[1
982]
78.0
2[1
982]
58.0
8[1
475]
33.9
7[8
63]
18.7
[489
]
12.7
[323
]
Con
trol
Box
,in
com
ing
Pow
erS
uppl
y (2
00,
230v
)
2.5
[63.
5]
3.93
7.88
[200
]
CO
NTA
CT
SU
RFA
CE
TY
PIC
AL
4 P
LAC
ES
DE
TAIL
"A
"
MO
UN
TIN
G P
LAT
E
[100
]
MO
UN
TIN
G H
OLE
0.87
5 D
IA.[2
2.2]
MO
UN
TIN
G P
LAT
E
1.50
DIA
. [38
.1]
RIG
GIN
G H
OLE
[127
]5.
0
[33]
1.31
1.75 [44]
22.2
[565
]
Fig
. 5 —
30X
A18
0,20
0 A
ir-C
oo
led
Liq
uid
Ch
iller
Dim
ensi
on
s (c
on
t)
a30-4174
12
Opt
iona
l Non
-fus
ed
Dis
conn
ect H
andl
e
Con
trol
Pow
er E
ntry
(al
l vol
tage
s)
7/8"
kno
ckou
ts fo
r m
ain
pow
er e
ntry
(5
.55"
[141
mm
] hol
e sp
acin
g)C
ontr
ol B
ox(2
00/2
30v
only
)
Con
trol
Box
(200
,230
,380
,46
0,57
5v)
Dis
play
Loc
atio
n
90.5
5[2
300]
28.8
1[7
32]
23.6
2[6
00]
329.
26 [8
363]
167.
73 [4
260]
205.
6 [5
222]
140.
14 [3
560]
6" V
icta
ulic
E
nter
ing
Wat
er
6" V
icta
ulic
Le
avin
g W
ater
Con
trol
Box
90.5
5[2
300]
22.4
8[5
71]
11.3
[287
]
88.0
4[2
236]70
.16
[178
2]
12.7
[323
]
BA
CK
VIE
WR
IGH
T E
ND
VIE
W
Coo
ler
Tube
S
ervi
ce A
rea
Pip
ing
Ent
ranc
e
Con
trol
Box
88.0
4[2
236]
70.1
6[1
782]
A
329.
26 [8
363]
224.
65 [5
706]
B10
8.6
[275
8]
TOP
VIE
W
Inco
min
g po
wer
(200
,230
v)
Con
trol
Box
(20
0,23
0v)
Inco
min
g po
wer
, 380
,460
,575
v
NO
TE
S:
1.U
nit m
ust h
ave
clea
ranc
es a
s fo
llow
s:To
p —
Do
not r
estr
ict
Sid
es a
nd E
nds
— 6
ft fr
om s
olid
sur
face
.2.
Tem
pera
ture
rel
ief
devi
ces
are
loca
ted
on l
iq-
uid
line
and
econ
omiz
er a
ssem
blie
s an
d ha
ve1 /
4-in
. fla
re c
onne
ctio
n.3.
3 /8-
in.
NP
T v
ents
and
dra
ins
loca
ted
in e
ach
cool
er h
ead
at e
ach
end
of c
oole
r.4.
Dra
win
g de
pict
s un
it w
ith s
tand
ard
cond
ense
rfa
ns,
and
stan
dard
tw
o-pa
ss c
oole
r. R
efer
to
the
Pac
kage
d C
hille
r B
uild
er p
rogr
am fo
r ot
her
conf
igur
atio
ns.
5.D
imen
sion
s ar
e sh
own
in i
nche
s; d
imen
sion
sin
bra
cket
s ar
e in
mill
imet
ers.
30X
A U
NIT
AB
220
46.1
7 [1
173]
171.
42 [4
354]
240
46.2
3 [1
174]
170.
83 [4
339]
Fig
. 6 —
30X
A22
0,24
0 A
ir-C
oo
led
Liq
uid
Ch
iller
Dim
ensi
on
s
a30-4409
13
Con
trol
B
oxes
90.5
5[2
300]
88.0
4 [2
236]
3/4
NP
T R
elie
f Con
n. F
emal
e
6" V
icta
ulic
Ent
erin
g W
ater
6" V
icta
ulic
Lea
ving
Wat
erC
oole
r V
ent
3/8
NP
T
Coo
ler
Dra
in3/
8 N
PT
Mou
ntin
g H
oles
Rig
ging
Hol
es(S
ee D
etai
l A)
90.5
5[2
300]
22.4
8[5
71]
11.3
[287
]
329.
26 [8
363]
224.
65 [5
706]
109.
03 [2
769]
58.0
8 [1
475]
58.0
8 [1
475]
33.9
7 [8
63]
33.9
6 [8
63]
18.0
7[4
59]
LEF
T E
ND
VIE
WF
RO
NT
VIE
W
3.93
7.88
[200
]
CO
NTA
CT
SU
RFA
CE
TY
PIC
AL
4 P
LAC
ES
DE
TAIL
"A
"
MO
UN
TIN
G P
LAT
E
[100
]
MO
UN
TIN
G H
OLE
0.87
5 D
IA.[2
2.2]
MO
UN
TIN
G P
LAT
E
1.50
DIA
. [38
.1]
RIG
GIN
G H
OLE
[127
]5.
0
[33]
1.31
1.75 [44]
Fig
. 6 —
30X
A22
0,24
0 A
ir-C
oo
led
Liq
uid
Ch
iller
Dim
ensi
on
s (c
on
t)
a30-4176
14
8" V
icta
ulic
E
nter
ing
Wat
er
8" V
icta
ulic
Le
avin
g W
ater
Con
trol
Box
90.5
5[2
300]
23.6
3[6
00]
12.2
1[3
10]
88.0
4 [2
236]
71.0
6 [1
805]
Coo
ler
Tube
S
ervi
ce A
rea
Pip
ing
Ent
ranc
e
Con
trol
Box
,in
com
ing
pow
er s
uppl
y
88.0
4[2
236]
71.0
6[1
805]
A
376.
2 [9
555]
304.
71 [7
740]
B18
8.35
[478
4]
Con
trol
Pow
er E
ntry
Opt
iona
l Non
-fus
ed
Dis
conn
ect H
andl
e
Con
trol
Box
(al
l vol
tage
s)
7/8"
kno
ckou
ts fo
r m
ain
pow
er e
ntry
(5
.55"
[141
mm
] hol
e sp
acin
g)
90.5
5[2
300]
28.8
1[7
32]
23.6
2[6
00]
376.
2 [9
555]
245.
52 [6
236]
RIG
HT
EN
D V
IEW
TO
P V
IEW
BA
CK
VIE
W
Inco
min
g po
wer
(all
volta
ges)
Dis
play
Loc
atio
n (
all v
olta
ges)
199.
7 [5
072]
NO
TE
S:
1.U
nit
mus
t ha
ve
clea
ranc
es
asfo
llow
s:To
p —
Do
not r
estr
ict
Sid
es a
nd E
nds
— 6
ft
from
sol
idsu
rfac
e.2.
Tem
pera
ture
re
lief
devi
ces
are
loca
ted
on l
iqui
d lin
e an
d ec
ono-
miz
er a
ssem
blie
s an
d ha
ve 1
/ 4-in
.fla
re c
onne
ctio
n.3.
3 /8-
in.
NP
T
vent
s an
d dr
ains
loca
ted
in e
ach
cool
er h
ead
atea
ch e
nd o
f coo
ler.
4.D
raw
ing
depi
cts
unit
with
st
an-
dard
co
nden
ser
fans
an
dst
anda
rd t
wo-
pass
coo
ler.
Ref
erto
the
Pac
kage
d C
hille
r B
uild
erpr
ogra
m fo
r ot
her
conf
igur
atio
ns.
5.D
imen
sion
s ar
e sh
own
in in
ches
;di
men
sion
s in
br
acke
ts
are
inm
illim
eter
s.
30X
A U
NIT
AB
260
44.2
2 [1
123]
216.
16 [5
490]
280
44.3
0 [1
125]
215.
86 [5
483]
300
44.3
2 [1
126]
216.
18 [5
491]
Fig
. 7 —
30X
A26
0-30
0 A
ir-C
oo
led
Liq
uid
Ch
iller
Dim
ensi
on
s
a30-4177
15
3/4
NP
T R
elie
f Con
n. F
emal
e 8" V
icta
ulic
Ent
erin
g W
ater
8" V
icta
ulic
Lea
ving
Wat
erC
oole
r V
ent
3/8
NP
T
Coo
ler
Dra
in3/
8 N
PT
Mou
ntin
g H
oles
Rig
ging
Hol
es(S
ee D
etai
l A)
90.5
5[2
300]
23.6
3[6
00]
12.2
1[3
10]
376.
2 [9
555]
304.
71 [7
740]
78.0
2 [1
982]
78.0
2 [1
982]
78.0
2 [1
982]
78.0
2 [1
982]
31.9
6 [8
12]
16.1
[409
]
Con
trol
Box
A
ll V
olta
ges
90.5
5[2
300]
88.0
4 [2
236]
LEF
T E
ND
VIE
WF
RO
NT
VIE
W
15.7
7 [4
01]
3.93
7.88
[200
]
CO
NTA
CT
SU
RFA
CE
TY
PIC
AL
4 P
LAC
ES
DE
TAIL
"A
"
MO
UN
TIN
G P
LAT
E
[100
]
MO
UN
TIN
G H
OLE
0.87
5 D
IA.[2
2.2]
MO
UN
TIN
G P
LAT
E
1.50
DIA
. [38
.1]
RIG
GIN
G H
OLE
[127
]5.
0
[33]
1.31
1.75 [44]
Fig
. 7 —
30X
A26
0-30
0 A
ir-C
oo
led
Liq
uid
Ch
iller
Dim
ensi
on
s (c
on
t)
a30-4178
16
TOP
VIE
W
Coo
ler
Tube
S
ervi
ce A
rea
Pip
ing
Ent
ranc
e
Con
trol
Box
, inc
omin
g po
wer
sup
ply
88.0
4[2
236]
71.0
6[1
805]
A
423.
24 [1
0750
]
349.
02 [8
865]
B23
2.66
[591
0]
RIG
HT
EN
D V
IEW
8" V
icta
ulic
E
nter
ing
Wat
er
8" V
icta
ulic
Le
avin
g W
ater
Con
trol
Box
90.5
5[2
300]
23.6
3[6
00]
12.2
1[3
10]
88.0
4 [2
236]
71.0
6 [1
805]
Opt
iona
l Non
-fus
ed
Dis
conn
ect H
andl
e
Con
trol
pow
er e
ntry
Con
trol
Box
7/
8" k
nock
outs
for
mai
n po
wer
ent
ry
(5.5
5" [1
41 m
m] h
ole
spac
ing)
Dis
play
Loc
atio
n
90.5
5[2
300]
28.8
1[7
32]
BA
CK
VIE
W
23.6
2[6
00]
423.
24 [1
0750
]
292.
56 [7
431]
246.
7 [6
267]
NO
TE
S:
1.U
nit m
ust h
ave
clea
ranc
es a
s fo
llow
s:To
p —
Do
not r
estr
ict
Sid
es a
nd E
nds
— 6
ft fr
om s
olid
sur
face
.2.
Tem
pera
ture
rel
ief
devi
ces
are
loca
ted
onliq
uid
line
and
econ
omiz
er a
ssem
blie
s an
dha
ve 1
/ 4-in
. fla
re c
onne
ctio
n.3.
3 /8-
in.
NP
T v
ents
and
dra
ins
loca
ted
in e
ach
cool
er h
ead
at e
ach
end
of c
oole
r.4.
Dra
win
g de
pict
s un
it w
ith
stan
dard
co
n-de
nser
fan
s an
d st
anda
rd t
wo-
pass
coo
ler.
Ref
er t
o th
e P
acka
ged
Chi
ller
Bui
lder
pro
-gr
am fo
r ot
her
conf
igur
atio
ns.
5.D
imen
sion
s ar
e sh
own
in
inch
es;
dim
en-
sion
s in
bra
cket
s ar
e in
mill
imet
ers.
30X
A U
NIT
AB
325
42.9
2 [1
090]
246.
16 [6
252]
350
42.9
2 [1
090]
246.
72 [6
267]
Fig
. 8 —
30X
A32
5,35
0 A
ir-C
oo
led
Liq
uid
Ch
iller
Dim
ensi
on
s
a30-4410
17
Con
trol
Box
90.5
5[2
300]
88.0
4 [2
236]
3/4
NP
T R
elie
f Con
n. F
emal
e 8" V
icta
ulic
Ent
erin
g W
ater
8" V
icta
ulic
Lea
ving
Wat
erC
oole
r V
ent
3/8
NP
T
Coo
ler
Dra
in3/
8 N
PT
Mou
ntin
g H
oles
Rig
ging
Hol
es(S
ee D
etai
l A)
90.5
5[2
300]
23.6
3[6
00]
12.2
1[3
10]
423.
24
[107
50]
349.
02
[886
5]
109.
03[2
769]
78.0
2[1
982]
78.0
2[1
982]
58.0
8 [1
475]
33.9
7[8
63]
33.9
6 [8
63]
16.1
[4
09]
FR
ON
T V
IEW
LE
FT
EN
D V
IEW
15.7
7 [4
01]
3.93
7.88
[200
]
CO
NTA
CT
SU
RFA
CE
TY
PIC
AL
4 P
LAC
ES
DE
TAIL
"A
"
MO
UN
TIN
G P
LAT
E
[100
]
MO
UN
TIN
G H
OLE
0.87
5 D
IA.[2
2.2]
MO
UN
TIN
G P
LAT
E
1.50
DIA
. [38
.1]
RIG
GIN
G H
OLE
[127
]5.
0
[33]
1.31
1.75 [44]
Fig
. 8 —
30X
A32
5,35
0 A
ir-C
oo
led
Liq
uid
Ch
iller
Dim
ensi
on
s (c
on
t)
a30-4180
18
8" V
icta
ulic
E
nter
ing
Wat
er
Con
trol
B
ox
90.5
5[2
300]
17.9
2[4
55]
88.0
4 [2
236]
72.1
[183
1]
Coo
ler
Tube
S
ervi
ce A
rea
Pip
ing
Ent
ranc
e
Pip
ing
Ent
ranc
eC
ontr
ol B
ox #
1C
ontr
ol B
ox #
2
88.0
4[2
236]
72.1
[183
1]
70.0
2[1
779]
45.7
9[1
163]
470.
22 [1
1944
]378.
95 [9
625]
240.
69 [6
114]
TO
P V
IEW
RIG
HT
EN
D V
IEW
53.2
9 [1
354]
63.3
5 [1
609]
119.
07 [3
024]
Con
trol
pow
er e
ntry
Dis
play
Loc
atio
n
Opt
iona
l Non
-fus
ed
Dis
conn
ect H
andl
es
Con
trol
Box
#2
7/8"
Kno
ckou
ts fo
r C
kt 1
pow
er
(5.5
5" b
etw
een
hole
s)
Con
trol
Box
#1
7/8"
Kno
ckou
ts fo
r C
kt 2
pow
er(5
.55"
bet
wee
n ho
les)
90.5
5[2
300]
28.8
1[7
32]
23.6
2[6
00]
470.
22 [1
1944
]
331.
58 [8
422]
151.
5 [3
848]
BA
CK
VIE
W
Circ
uit 1
Circ
uit 2
105.
7 [2
684]
NO
TE
S:
1.U
nit m
ust h
ave
clea
ranc
es a
s fo
llow
s:To
p —
Do
not r
estr
ict
Sid
es a
nd E
nds
— 6
ft fr
om s
olid
sur
face
.2.
Tem
pera
ture
rel
ief
devi
ces
are
loca
ted
on l
iq-
uid
line
and
econ
omiz
er a
ssem
blie
s an
d ha
ve1 /
4-in
. fla
re c
onne
ctio
n.3.
3 /8-
in.
NP
T v
ents
and
dra
ins
loca
ted
in e
ach
cool
er h
ead
at e
ach
end
of c
oole
r.4.
Dra
win
g de
pict
s un
it w
ith
dual
-poi
nt
pow
erst
anda
rd c
onde
nser
fan
s an
d st
anda
rd o
ne-
pass
co
oler
. R
efer
to
th
e P
acka
ged
Chi
ller
Bui
lder
pro
gram
for
othe
r co
nfig
urat
ions
.5.
Act
ual c
oole
r co
nsis
ts o
f tw
o se
para
te c
oole
rspi
ped
in s
erie
s at
the
fac
tory
. P
ipin
g m
ay b
esp
lit fo
r rig
ging
.6.
Dim
ensi
ons
are
show
n in
inc
hes;
dim
ensi
ons
in b
rack
ets
are
in m
illim
eter
s.
Fig
. 9 —
30X
A40
0 A
ir-C
oo
led
Liq
uid
Ch
iller
Dim
ensi
on
s
a30-4181
19
8" V
icta
ulic
Lea
ving
Wat
er
Con
trol
B
oxes
90.5
5[2
300]
17.9
2[4
55]
88.0
4 [2
236]
70.0
2 [1
779]
3/4
NP
T R
elie
f Con
n. F
emal
e
8" V
icta
ulic
Ent
erin
g W
ater
8" V
icta
ulic
Lea
ving
Wat
er
Coo
ler
Ven
t 3/8
NP
Tlo
cate
d in
coo
ler
head
s
Coo
ler
Dra
in 3
/8 N
PT
loca
ted
in c
oole
r he
ads
Mou
ntin
g H
oles
Rig
ging
Hol
es(S
ee D
etai
l A)
90.5
5[2
300]
17.9
2[4
55]
17.9
2[4
55]
470.
22 [1
1944
]37
8.95
[962
5]53
.29
[135
4]
78.0
2 [1
982]
78.0
2 [1
982]
78.0
2 [1
982]
78.0
2 [1
982]
58.0
8 [1
475]
33.9
3[8
62]
31.9
6[8
12]
16.1
[4
09]
FR
ON
T V
IEW
LE
FT
EN
D V
IEW
15.7
7 [4
01]
3.93
7.88
[200
]
CO
NTA
CT
SU
RFA
CE
TY
PIC
AL
4 P
LAC
ES
DE
TAIL
"A
"
MO
UN
TIN
G P
LAT
E
[100
]
MO
UN
TIN
G H
OLE
0.87
5 D
IA.[2
2.2]
MO
UN
TIN
G P
LAT
E
1.50
DIA
. [38
.1]
RIG
GIN
G H
OLE
[127
]5.
0
[33]
1.31
1.75 [44]
Fig
. 9 —
30X
A40
0 A
ir-C
oo
led
Liq
uid
Ch
iller
Dim
ensi
on
s (c
on
t)
a30-4182
20
TO
P V
IEW
RIG
HT
EN
D V
IEW
Coo
ler
Tube
S
ervi
ce A
rea
Pip
ing
Ent
ranc
e
Pip
ing
Ent
ranc
e
Con
trol
Box
#2
Con
trol
Box
#1
88.0
4[2
236]
73.0
[185
4]71
.06
[180
5]
A
517.
26 [1
3138
]426.
0 [1
0820
]B
129.
1 [3
279]
8" V
icta
ulic
Ent
erin
g W
ater
Con
trol
Box
es
90.5
5[2
300]
17.9
2[4
55]
88.0
4 [2
236]
73.0
[185
4]
83.6
2 [2
124]
93.6
8 [2
379]
Non
-fus
ed D
isco
nnec
t Han
dles
Dis
play
Loc
atio
n
Con
trol
pow
er e
ntry
7/8"
Kno
ckou
ts fo
r C
kt 1
pow
er
(5.5
5" b
etw
een
hole
s)7/
8" K
nock
outs
for
Ckt
2 p
ower
(5.5
5" b
etw
een
hole
s)
Con
trol
Box
#1
Con
trol
Box
#2
BA
CK
VIE
W
90.5
5[2
300]
28.8
1[7
32]
23.6
2[6
00]
517.
26 [1
3138
]
Circ
uit 1
Circ
uit 2
378.
62 [9
617]
198.
54 [5
043]
152.
7 [3
879]
NO
TE
S:
1.U
nit m
ust h
ave
clea
ranc
es a
s fo
llow
s:To
p —
Do
not r
estr
ict
Sid
es a
nd E
nds
— 6
ft fr
om s
olid
sur
face
.2.
Tem
pera
ture
rel
ief
devi
ces
are
loca
ted
onliq
uid
line
and
econ
omiz
er a
ssem
blie
s an
dha
ve 1
/ 4-in
. fla
re c
onne
ctio
n.3.
3 /8-
in.
NP
T
vent
s an
d dr
ains
lo
cate
d in
each
coo
ler
head
at e
ach
end
of c
oole
r.4.
Dra
win
g de
pict
s un
it w
ith d
ual-p
oint
pow
erst
anda
rd
cond
ense
r fa
ns
and
stan
dard
one-
pass
coo
ler.
Ref
er t
o th
e P
acka
ged
Chi
ller
Bui
lder
pro
gram
for
oth
er c
onfig
u-ra
tions
.5.
Act
ual
cool
er
cons
ists
of
tw
o se
para
teco
oler
s pi
ped
in s
erie
s at
the
fac
tory
. P
ip-
ing
may
be
split
for
riggi
ng.
6.D
imen
sion
s ar
e sh
own
in i
nche
s; d
imen
-si
ons
in b
rack
ets
are
in m
illim
eter
s.
30X
A U
NIT
AB
450
44.7
1 [1
136]
264.
7 [6
723]
500
44.7
8 [1
137]
263.
99 [6
705]
Fig
. 10
— 3
0XA
450,
500
Air
-Co
ole
d L
iqu
id C
hill
er D
imen
sio
ns
a30-4183
21
9" V
icta
ulic
Lea
ving
Wat
er
Con
trol
Box
es90
.55
[230
0]
17.9
2[4
55]
88.0
4 [2
236]
71.0
6 [1
805]
3/4
NP
T R
elie
f Con
n. F
emal
e
8" V
icta
ulic
Ent
erin
g W
ater
8" V
icta
ulic
Lea
ving
Wat
er
Coo
ler
Ven
t 3/8
NP
Tlo
cate
d in
coo
ler
head
s
Coo
ler
Dra
in 3
/8 N
PT
loca
ted
in c
oole
r he
ads
Mou
ntin
g H
oles
R
iggi
ng H
oles
(See
Det
ail A
)
90.5
5[2
300]
17.9
2[4
55]
17.9
2[4
55]
517.
26 [1
3138
]42
6.0
[108
20]
83.6
2 [2
124]
109.
03[2
769]
78.0
2[1
982]
78.0
2[1
982]
58.0
8[1
475]
58.0
8[1
475]
33.9
7[8
63]
33.9
7[8
63]
33.9
6[8
63]
18.0
7[4
59]
FR
ON
T V
IEW
LE
FT
EN
D V
IEW
15.7
7 [4
01]
3.93
7.88
[200
]
CO
NTA
CT
SU
RFA
CE
TY
PIC
AL
4 P
LAC
ES
DE
TAIL
"A
"
MO
UN
TIN
G P
LAT
E
[100
]
MO
UN
TIN
G H
OLE
0.87
5 D
IA.[2
2.2]
MO
UN
TIN
G P
LAT
E
1.50
DIA
. [38
.1]
RIG
GIN
G H
OLE
[127
]5.
0
[33]
1.31
1.75 [44]
Fig
. 10
— 3
0XA
450,
500
Air
-Co
ole
d L
iqu
id C
hill
er D
imen
sio
ns
(co
nt)
a30-4184
22
Fig. 11A — Unit Mounting Weights (Units with MCHX Condenser Coils)
UNITS WITHOUT PUMPS — ENGLISH
UNITS WITHOUT PUMPS — SI
30XAUNIT SIZE
MOUNTING WEIGHT (lb)MCHX CONDENSER COILS
A B C D Total080 1947 1673 1670 1943 7234
30XAUNIT SIZE
MOUNTING WEIGHT (lb) MCHX CONDENSER COILSA B C D E F Total
Fig. 11C — Unit Mounting Weights (Units with Cu/Cu Condenser Coils) (cont)
a30-4420 a30-4421
ABC
FED
COOLER SIDE
COMPRESSOR SIDE
ABCD
HGFE
COOLER SIDE
COMPRESSOR SIDE
34
Table 1A — Physical Data, 30XA080-500 — English
LEGEND * Operating weight includes 2 pumps on models 30XA090-160. No pumps are available on30XA080 or 30XA180-500. See Fig. 11 for operating weights for units without pumps and unitswith single pump packages.
† 30XA080 unit does not have an economizer.** The high ambient temperature option is not available on 30XA080-120 units.
Cu — CopperAl — AluminumEXV — Electronic Expansion ValveMCHX — Micro-channel Heat ExchangerN/A — Not Applicable
35
Table 1B — Physical Data, 30XA080-500 — SI
LEGEND * Operating weight includes 2 pumps on models 30XA090-160. No pumps are available on30XA080 or 30XA180-500. See Fig. 11 for operating weights for units without pumps and unitswith single pump packages.
† 30XA080 unit does not have an economizer.** The high ambient temperature option is not available on 30XA080-120 units.
Cu — CopperAl — AluminumEXV — Electronic Expansion ValveMCHX — Micro-channel Heat ExchangerN/A — Not Applicable
36
RIGGING UNIT (See Fig. 12-14) — The 30XA080-500 unitsare designed for overhead rigging and it is important that thismethod be used. Holes are provided in frame base channels,marked for rigging (see rigging label on unit). Field-suppliedshackles are required to facilitate lifting. Secure the shacklesto the base rails at the points noted on the rigging label. SeeTable 2 for the number of lifting points for each unit.
Do not use a forklift truck to move the units.Table 2 — Number of Lifting Points for 30XA080-500
Use spreader bars to keep cables or chains clear of unit sides.As further protection plywood sheets may be placed againstsides of unit, behind cables or chains. Run cables or chains to acentral suspension point so that angle from horizontal is not lessthan 45 degrees. Raise and set unit down carefully.
See Fig. 12-14 for rigging centers of gravity.For shipping, some domestic units and all export units are
mounted on a wooden skid under entire base of unit. Skid canbe removed before unit is moved to installation site. Lift theunit from above to remove skid. See Fig. 12-14 for riggingcenter of gravity. On export units, the top skid can be used asthe spreader bars. If the unit was shipped with a shipping bag,the bag must be removed to gain access to the rigging holes inthe base rail.
If overhead rigging is not available, the unit can be movedon rollers or dragged. When unit is moved on rollers, the unitskid, if equipped, must be removed. To lift the unit, use jacks atthe rigging points. Use a minimum number of rollers to distrib-ute the load such that the rollers are no more than 6 ft (1.8 m)apart. If the unit is to be dragged, lift the unit as describedabove, and place unit on a pad. Apply moving force to the pad,and not the unit. When in its final location, raise the unit andremove the pad. If the unit was shipped with coil protection, itmust be removed before start-up. The shipping bag for exportunits must be removed before start-up.
ALL PANELS MUST BE IN PLACE WHEN RIGGING. DO NOT ATTEMPT TO FORK THESE UNITS IF NO SKID IS SUPPLIED.CAUTION - NOTICE TO RIGGERS:
NOTES:1. 1.50 dia. (38.1mm) lifting holes provided for field supplied clevis.2. Rig with a minimum of 25 ft (7620mm) length chains or cables.3. If central lifting point is used, it must be a minimum of 13 ft. (3962mm) above the top of the unit.4. Spreader bars made from steel or double nailed, and notched 2x6's approximately 8 ft. (2438mm) long, must
be placed just above the top of the unit (and stacks) to reduce the risk of damage to the top of the unit andcoils.
5. If overhead rigging is not available, the unit can be moved on rollers or dragged. When unit is moved on rollers, the unit skid, if equipped, must be removed. To lift the unit, use jacks at the rigging points. Use a minimum of one roller every 6 ft. (1829mm) to distribute the load. If the unit is to be dragged, lift the unit as described above, and place unit on a pad. Apply moving force to the pad, not the unit. When in its final location, raise the unit and remove the pad.
Step 3 — Cooler Fluid and Drain Piping Con-nections — See Fig. 15-18 for piping applications.
GENERAL — The factory-installed victaulic connections al-low clamp-on connection of water lines to the coolers in all30XA units. A flow sensor is factory-installed in the side of theentering fluid nozzle. See Fig. 19. See Table 3 for 30XA unitoperating range. See Fig. 16 for cooler option dimensions.UNITS WITH HYDRONIC PUMP PACKAGE — The30XA090-160 units can be equipped with a factory-installedhydronic pump package consisting of a suction guide/strainer,pump, combination valve, internal piping and wiring con-nected at the factory.
The combination valve performs the following functions:• Drip-tight shut-off valve• Spring closure design with a non-slam check valve• Flow-throttling valve
When facing the cooler side of unit, the inlet (return) waterconnection is on the bottom. The outlet (supply) water connec-tion is on the top. The inlet is connected to the suction guide/strainer of the pump via a Victaulic-type connection. The cool-er supply has water-side Victaulic-type connections (followconnection directions as provided by the coupling manufactur-er). Provide proper support for the piping. If accessory securitygrilles have been added, holes must be cut in the grilles forfield piping and insulation.
There is a factory supplied, insulated 45-degree elbow pipeand a victaulic coupling shipped with units ordered with ahydronic pump package. Before starting field piping, use thevictaulic coupling to connect this elbow pipe to the outlet of thecombination valve.
Remove the chilled water flow switch, entering and leavingwater thermistors before welding connecting piping. Rein-stall flow switch and thermistors after welding is complete.Failure to remove these devices may cause unit damage.
ALL PANELS MUST BE IN PLACE WHEN RIGGING. DO NOT ATTEMPT TO FORK THESE UNITS IF NO SKID IS SUPPLIED.CAUTION - NOTICE TO RIGGERS:
NOTES:1. 1.50 dia. (38.1mm) lifting holes provided for field supplied clevis.2. Rig with a minimum of 25 ft (7620mm) length chains or cables.3. If central lifting point is used, it must be a minimum of 13 ft. (3962mm) above the top of the unit.4. Spreader bars made from steel or double nailed, and notched 2x6's approximately 8 ft. (2438mm) long, must
be placed just above the top of the unit (and stacks) to reduce the risk of damage to the top of the unit andcoils.
5. If overhead rigging is not available, the unit can be moved on rollers or dragged. When unit is moved on rollers, the unit skid, if equipped, must be removed. To lift the unit, use jacks at the rigging points. Use a minimum of one roller every 6 ft. (1829mm) to distribute the load. If the unit is to be dragged, lift the unit as described above, and place unit on a pad. Apply moving force to the pad, not the unit. When in its final location, raise the unit and remove the pad.
6. Check bill of lading for shipping weight of unit.
Fig. 13 — Unit Rigging Label Detail 30XA220-350
a30-4428
38
The suction guide/strainer is shipped from the factory with arun-in screen. This screen is a temporary device used duringthe start-up/clean-up process of the chilled water circuit toprevent construction debris from damaging the pump orinternal tubes of the cooler. After all debris has been removedor a maximum of 24 running hours the temporary screen mustbe removed. See the Start-Up, Controls, Operation andTroubleshooting guide for further information.
NOTE: It is required that a 20 mesh field-supplied strainer beinstalled in the inlet piping to the cooler on open loop systems.
A 3/4 in. NPT fitting is installed in the inlet piping of thepump for connection to an expansion tank. Install the tank inaccordance with the manufacturer's instructions.
Figures 20 and 21 illustrate typical single and dual pumppackages.
Three drain connections are provided and are located atleaving water (supply) end of cooler, pump volute, and thesuction guide. See Fig. 2-10 for connection location. Insulatethe drain piping (in the same manner as the chilled water pip-ing) for at least 12 in. (305 mm) from the cooler.
The suction guide/strainer is shipped from the factory witha run-in screen. This temporary screen must be removedafter all debris has been removed or a maximum of 24 run-ning hours. Failure to remove the temporary screen mayresult in damage to the pump or cooler.
ALL PANELS MUST BE IN PLACE WHEN RIGGING. DO NOT ATTEMPT TO FORK THESE UNITS IF NO SKID IS SUPPLIED.CAUTION - NOTICE TO RIGGERS:
NOTES:1. 1.50 dia. (38.1mm) lifting holes provided for field supplied clevis.2. Rig with a minimum of 25 ft (7620mm) length chains or cables.3. If central lifting point is used, it must be a minimum of 13 ft. (3962mm) above the top of the unit.4. Spreader bars made from steel or double nailed, and notched 2x6's approximately 8 ft. (2438mm) long, must
be placed just above the top of the unit (and stacks) to reduce the risk of damage to the top of the unit andcoils.
5. If overhead rigging is not available, the unit can be moved on rollers or dragged. When unit is moved on rollers, the unit skid, if equipped, must be removed. To lift the unit, use jacks at the rigging points. Use a minimum of one roller every 6 ft. (1829mm) to distribute the load. If the unit is to be dragged, lift the unit as described above, and place unit on a pad. Apply moving force to the pad, not the unit. When in its final location, raise the unit and remove the pad.
6. Check bill of lading for shipping weight of unit.
Fig. 14 — Unit Rigging Label Detail 30XA400-500
a30-4428
39
GATE VALVE*
STRAINER* VIBRATIONELIMINATORS*
BALANCING VALVE/SHUT OFF*
POWERFD
FDCONTROL
PRESSURE/TEMPERATURE TAPS*
PUMP
DRAINSHUTOFFVALVE
NOTES:1. Chiller must be installed level to maintain proper compressor oil return.2. Piping shown are general points-of-connection guides only and are not
intended for a specific installation. Wiring and piping shown are for a quickoverview of system and are not in accordance with recognized standards.
3. All wiring must comply with applicable local and national codes.4. All piping must follow standard piping techniques. Refer to Carrier System
Design Manual or appropriate ASHRAE (American Society of Heating,Refrigeration, and Air Conditioning Engineers) handbook for details.
LEGEND
*Field-installed.
FD — Fused Disconnect
Airflow Through Condenser
Chilled Water Piping
Power Wiring
Fig. 15A — 30XA Typical Piping and Wiring (Units without Hydronic Package)
a30-4114
Fig. 15B — 30XA Typical Piping and Wiring (Units with Hydronic Package)
FIELD-SUPPLIEDFUSED DISCONNECTCONTROL POWER
FIELD-SUPPLIEDFUSED DISCONNECTUNIT POWER
AIRFLOW
DRAIN SHUTOFF VALVE
STRAINER*
GATE VALVE*
PUMP
PRESSURE/TEMPERATURE
TAPS*
VIBRATIONELIMINATORS*
BALANCING VALVE/SHUTOFF*NOTES:
1. Chiller must be installed level to maintain propercompressor oil return and hydraulics.
2. Wiring and piping shown are general points-of-connection guides only and are not intended for aspecific installation. Wiring and piping shown arefor a quick overview of system and are not inaccordance with recognized standards.
3. All wiring must comply with applicable local andnational codes.
4. All piping must follow standard piping techniques.Refer to Carrier System Design Manual or appro-priate ASHRAE (American Society of Heating,Refrigeration, and Air Conditioning Engineers)handbook for details.
5. Air separator required as close to chiller as possi-ble (except primary/secondary systems).
6. 20 mesh strainer required for open loop systems.
LEGEND
*Field-installed.
Airflow Through Condenser
Power Wiring
Chilled Water Piping
40
l io
C
re looC
we iV
edi
S
D
ista
nce
to E
nter
ing
Wat
er C
onne
ctio
n
g nivaeLret a
W
To
p V
iew
Hei
ght L
eavi
ngW
ater
Con
nect
ion
Hei
ght E
nter
ing
Wat
er C
onne
ctio
n
Dis
tanc
e to
Lea
ving
Wat
er C
onne
ctio
n
Dis
tanc
e to
Leav
ing/
Ent
erin
gW
ater
Con
nect
ion
EN
GLI
SH
SI
*30X
A40
0-50
0 un
its a
re e
quip
ped
with
sta
ndar
d co
oler
s on
ly. R
efer
to u
nit d
imen
sion
al d
raw
ings
for
cool
er d
imen
sion
s.N
OT
E: R
efer
to d
imen
sion
al d
raw
ings
for
all o
ther
uni
t dim
ensi
ons.
30X
AU
NIT
SIZ
E*
STA
ND
AR
D C
OO
LE
RP
LU
S O
NE
PA
SS
CO
OL
ER
MIN
US
ON
E P
AS
S C
OO
LE
R
Dis
tan
ce t
oL
eavi
ng
W
ater
Co
nn
ecti
on
(in
.)
Hei
gh
tL
eavi
ng
W
ater
Co
nn
ecti
on
(in
.)
Dis
tan
ce t
oL
eavi
ng
/E
nte
rin
g
Wat
erC
on
nec
tio
n (
in.)
Dis
tan
ce t
oE
nte
rin
g
Wat
erC
on
nec
tio
n(i
n.)
Hei
gh
tE
nte
rin
g
Wat
erC
on
nec
tio
n(i
n.)
Vic
tau
licC
on
nec
tio
nS
ize
(in
.)
Dis
tan
ce t
oL
eavi
ng
W
ater
Co
nn
ecti
on
(in
.)
Hei
gh
tL
eavi
ng
W
ater
Co
nn
ecti
on
(in
.)
Dis
tan
ce t
oL
eavi
ng
/E
nte
rin
g
Wat
erC
on
nec
tio
n(i
n.)
Dis
tan
ceto
En
teri
ng
W
ater
Co
nn
ecti
on
(in
.)
Hei
gh
tE
nte
rin
g
Wat
erC
on
nec
tio
n(i
n.)
Vic
tau
licC
on
nec
tio
nS
ize
(in
.)
Dis
tan
ce t
oL
eavi
ng
W
ater
Co
nn
ecti
on
(in
.)
Hei
gh
tL
eavi
ng
W
ater
Co
nn
ecti
on
(in
.)
Dis
tan
ce t
oL
eavi
ng
/E
nte
rin
gW
ater
Co
nn
ecti
on
(in
.)
Dis
tan
ce t
oE
nte
rin
gW
ater
Co
nn
ecti
on
(in
.)
Hei
gh
tE
nte
rin
g
Wat
erC
on
nec
tio
n(i
n.)
Vic
tau
licC
on
nec
tio
nS
ize
(in
.)
080
121.
219
.168
.112
1.2
10.8
5.0
1.5
19.6
68.1
121.
210
.34.
0–2
.214
.968
.112
4.8
14.9
5.0
090
120.
919
.168
.112
0.9
10.8
5.0
1.2
19.6
68.1
120.
910
.34.
0–2
.514
.968
.112
4.5
14.9
5.0
100
120.
919
.168
.112
0.9
10.8
5.0
1.2
19.6
68.1
120.
910
.34.
0–2
.514
.968
.112
4.5
14.9
5.0
110
120.
919
.168
.112
0.9
10.8
5.0
1.2
19.6
68.1
120.
910
.34.
0–2
.514
.968
.112
4.5
14.9
5.0
120
120.
919
.168
.112
0.9
10.8
5.0
1.2
19.6
68.1
120.
910
.34.
0–2
.514
.968
.112
4.5
14.9
5.0
140
121.
521
.369
.112
1.5
10.6
5.0
1.2
21.3
69.1
121.
510
.65.
0–2
.215
.969
.112
4.8
15.9
6.0
160
121.
521
.369
.112
1.5
10.6
5.0
1.2
21.3
69.1
121.
510
.65.
0–2
.215
.969
.112
4.8
15.9
6.0
180
177.
722
.570
.217
7.7
11.3
6.0
53.6
22.4
70.2
180.
611
.46.
053
.613
.270
.218
0.6
13.2
8.0
200
177.
322
.570
.217
7.3
11.3
6.0
53.2
22.4
70.2
180.
211
.46.
053
.213
.270
.218
0.2
13.2
8.0
220
224.
722
.570
.222
4.7
11.3
6.0
100.
622
.470
.222
7.6
11.4
6.0
100.
613
.270
.222
7.6
13.2
8.0
240
224.
722
.570
.222
4.7
11.3
6.0
100.
622
.470
.222
7.6
11.4
6.0
100.
613
.270
.222
7.6
13.2
8.0
260
304.
723
.671
.130
4.7
12.2
8.0
180.
323
.471
.131
0.3
12.5
8.0
180.
316
.371
.131
0.3
16.3
8.0
280
304.
723
.671
.130
4.7
12.2
8.0
180.
323
.471
.131
0.3
12.5
8.0
180.
316
.371
.131
0.3
16.3
8.0
300
304.
723
.671
.130
4.7
12.2
8.0
180.
323
.471
.131
0.3
12.5
8.0
180.
316
.371
.131
0.3
16.3
8.0
325
349.
023
.671
.134
9.0
12.2
8.0
224.
723
.471
.135
4.7
12.5
8.0
224.
716
.371
.135
4.7
16.3
8.0
350
349.
023
.671
.134
9.0
12.2
8.0
224.
723
.471
.135
4.7
12.5
8.0
224.
716
.371
.135
4.7
16.3
8.0
30X
AU
NIT
SIZ
E*
STA
ND
AR
D C
OO
LE
RP
LU
S O
NE
PA
SS
CO
OL
ER
MIN
US
ON
E P
AS
S C
OO
LE
R
Dis
tan
ce t
oL
eavi
ng
Wat
erC
on
nec
tio
n
(mm
)
Hei
gh
tL
eavi
ng
Wat
erC
on
nec
tio
n(m
m)
Dis
tan
ce t
oL
eavi
ng
/E
nte
rin
gW
ater
Co
nn
ecti
on
(mm
)
Dis
tan
ce t
oE
nte
rin
gW
ater
Co
nn
ecti
on
(mm
)
Hei
gh
tE
nte
rin
gW
ater
Co
nn
ecti
on
(mm
)
Vic
tau
licC
on
nec
tio
nS
ize
(mm
)
Dis
tan
ce t
oL
eavi
ng
Wat
erC
on
nec
tio
n(m
m)
Hei
gh
tL
eavi
ng
Wat
erC
on
nec
tio
n(m
m)
Dis
tan
ce t
oL
eavi
ng
/E
nte
rin
gW
ater
Co
nn
ecti
on
(mm
)
Dis
tan
ce t
oE
nte
rin
gW
ater
Co
nn
ecti
on
(mm
)
Hei
gh
tE
nte
rin
gW
ater
Co
nn
ecti
on
(mm
)
Vic
tau
licC
on
nec
tio
nS
ize
(mm
)
Dis
tan
ce t
oL
eavi
ng
Wat
erC
on
nec
tio
n(m
m)
Hei
gh
tL
eavi
ng
Wat
erC
on
nec
tio
n(m
m)
Dis
tan
ce t
oL
eavi
ng
/E
nte
rin
gW
ater
Co
nn
ecti
on
(mm
)
Dis
tan
ce t
oE
nte
rin
gW
ater
Co
nn
ecti
on
(m
m)
Hei
gh
tE
nte
rin
gW
ater
Co
nn
ecti
on
(mm
)
Vic
tau
licC
on
nec
tio
nS
ize
(mm
)
080
3077
.848
4.0
1728
.730
77.8
274.
212
7.0
37.9
497.
217
28.7
3077
.826
1.0
101.
6–5
5.1
379.
117
28.7
3170
.737
9.1
127.
009
030
69.6
484.
017
28.7
3069
.627
4.2
127.
029
.749
7.2
1728
.730
69.6
261.
010
1.6
–63.
237
9.1
1728
.731
62.6
379.
112
7.0
100
3069
.648
4.0
1728
.730
69.6
274.
212
7.0
29.7
497.
217
28.7
3069
.626
1.0
101.
6–6
3.2
379.
117
28.7
3162
.637
9.1
127.
011
030
69.6
484.
017
28.7
3069
.627
4.2
127.
029
.749
7.2
1728
.730
69.6
261.
010
1.6
–63.
237
9.1
1728
.731
62.6
379.
112
7.0
120
3069
.648
4.0
1728
.730
69.6
274.
212
7.0
29.7
497.
217
28.7
3069
.626
1.0
101.
6–6
3.2
379.
117
28.7
3162
.637
9.1
127.
014
030
85.8
540.
517
56.2
3085
.826
8.7
127.
030
.154
0.5
1756
.230
85.8
268.
712
7.0
–55.
040
4.6
1756
.231
70.8
404.
615
2.4
160
3085
.854
0.5
1756
.230
85.8
268.
712
7.0
30.1
540.
517
56.2
3085
.826
8.7
127.
0–5
5.0
404.
617
56.2
3170
.840
4.6
152.
418
045
12.3
571.
017
82.1
4512
.328
7.0
152.
413
61.4
569.
517
82.1
4587
.228
8.5
152.
413
61.4
336.
017
82.1
4587
.233
6.0
203.
220
045
02.4
571.
017
82.1
4502
.428
7.0
152.
413
51.6
569.
517
82.1
4577
.428
8.5
152.
413
51.6
336.
017
82.1
4577
.433
6.0
203.
222
057
06.2
571.
017
82.1
5706
.228
7.0
152.
425
55.3
569.
517
82.1
5781
.128
8.5
152.
425
55.3
336.
017
82.1
5781
.133
6.0
203.
224
057
06.2
571.
017
82.1
5706
.228
7.0
152.
425
55.3
569.
517
82.1
5781
.128
8.5
152.
425
55.3
336.
017
82.1
5781
.133
6.0
203.
226
077
39.6
600.
218
04.9
7739
.631
0.1
203.
245
80.8
593.
918
04.9
7882
.831
6.5
203.
245
80.8
413.
318
04.9
7882
.841
3.3
203.
228
077
39.6
600.
218
04.9
7739
.631
0.1
203.
245
80.8
593.
918
04.9
7882
.831
6.5
203.
245
80.8
413.
318
04.9
7882
.841
3.3
203.
230
077
39.6
600.
218
04.9
7739
.631
0.1
203.
245
80.8
593.
918
04.9
7882
.831
6.5
203.
245
80.8
413.
318
04.9
7882
.841
3.3
203.
232
588
65.1
600.
218
04.9
8865
.131
0.1
203.
257
06.4
593.
918
04.9
9008
.431
6.5
203.
257
06.4
413.
318
04.9
9008
.441
3.3
203.
235
088
65.1
600.
218
04.9
8865
.131
0.1
203.
257
06.4
593.
918
04.9
9008
.431
6.5
203.
257
06.4
413.
318
04.9
9008
.441
3.3
203.
2
Fig
. 16
— C
oo
ler
Op
tio
n D
imen
sio
ns
a30-4413
41
SLAVE CHILLER
CONTROLBOX
PUMP
MASTER CHILLER
CONTROLBOX
Fig. 18 — Series Dual Chiller Operation
LEGENDLWT — Leaving Water Temperature
Field-Installed Communication Bus (slashes indicate number of conductor wires)Field-Installed WiringTwisted Pair
LEGEND
Field-Installed Communication Bus (slashes indicate number of conductor wires)Field-Installed Wiring
Fig. 17 — Parallel Dual Chiller Operation
a30-4417
a30-4418
SLAVE CHILLER
CONTROLBOX
PUMP & CHECK VALVEMASTER CHILLER
CONTROLBOX
DUAL CHILLERLWT SENSORS
& WELLS
OR ISOLATION VALVE
PUMP & CHECK VALVE
OR ISOLATION VALVE
42
PT
PT
T1
T2FS
PP
PP
D
D V
D
PT
PT
ChilledWater In
ChilledWater Out
Heater
Heater
E PT
Air Separator with Vent*
Strainer/Suction Guide
Pump
Combination Valve
Isolation Valve*
Pressure Reducing Fill Valve*
Flexible Connections*
Pressure Relief*
HYDRONIC PUMP PACKAGE INSIDEUNIT
OUTSIDEUNIT
20 Mesh Stainer**
FLOW SWITCH
Fig. 19 — Flow Switch
LEGEND
*Field-supplied and installed.†Factory-installed option.**Required for open loop systems.
D — Drain,3/4-in. NPTD′ — Drain, 1/4-in. NPTE — Expansion Tank Connection, 3/4-in. NPTFS — Flow SwitchPP — Pipe Plug, 1/4-in. NPTPT — Pressure/Temperature TapT1 — Leaving Water ThermistorT2 — Entering Water ThermistorV — Vent, 1/4-in. NPT
Indicates items provided with the optional hydronic pump package.
Fig. 20 — Typical Piping Diagram on 30XA Units with Hydronic Package — Single Pump
a30-4138
a30-4414
43
UNITS WITHOUT HYDRONIC PUMP PACKAGE — Whenfacing the cooler side of the unit, the inlet (return) water connec-tion is on the bottom. It is required that a field-supplied strainerwith a minimum size of 20 mesh be installed within 10 ft(3.05 m) of the cooler inlet to prevent debris from damaging in-ternal tubes of the cooler. The outlet (supply) water connection ison the top. The cooler has water-side victaulic-type connections(follow connection directions as provided by the coupling manu-facturer). Provide proper support for the piping. If accessory se-curity grilles have been added, holes must be cut in the grilles forfield piping and insulation. See Fig. 22 for a typical piping dia-gram of a 30XA unit without a hydronic pump package.
A drain connection is located at the leaving water (supply)end of cooler. See Fig. 2-10 for connection location. Insulatethe drain piping (in the same manner as the chilled waterpiping) for at least 12 in. (305 mm) from the unit.Dual Chiller Leaving Water Sensor —If the Dual Chiller al-gorithm is used, and the machines are installed in parallel, adual chilled water sensor must be installed for each module. In-stall the well in the common leaving water header. See Fig. 17.The series dual chiller application is shown in Fig. 18.Minimum Loop Volume — The preferred minimum loop vol-ume is dependent on the type of application. In order to obtainleaving water temperature stability for comfort cooling appli-cations, a minimum of 3 gallons per ton (3.25 liters per kW) isrequired on all unit sizes. For process cooling applications, ap-plications where high stability is critical, or operation atambient temperatures below 32 F (0° C) is expected, the loop
volume should be increased to 6 to 10 gallons per ton (6.46 to10.76 liters per kW) of cooling. In order to achieve thisvolume, it may be necessary to add a water storage tank to thewater loop. If a storage tank is added to the system, it should beproperly vented so that the tank can be completely filled and allair eliminated. Failure to do so could cause lack of pump stabil-ity and poor system operation. Any storage tank that is placedin the water loop should have internal baffles to allow thoroughmixing of the fluid. See Fig. 23.System Piping — Proper system design and installation proce-dures should be followed closely. The system must beconstructed with pressure tight components and thoroughlytested for installation leaks. Factory-supplied hydronic systemsare available with single or dual (for back-up) pumps. Thefactory-installed system includes all of the components abovethe line in Fig. 20 and 21.
Installation of water systems should follow sound engineer-ing practice as well as applicable local and industry standards.Improperly designed or installed systems may cause unsatis-factory operation and/or system failure. Consult a watertreatment specialist or appropriate literature for informationregarding filtration, water treatment, and control devices. Fig-ures 20 and 21 show a typical installation with components thatmight be installed with the hydronic package of the 30XA unit.NOTE: It is recommended for units with the hydronic packagethat an inlet isolation (shut-off) valve be placed exterior to theunit to allow removal and service of the entire pump assembly,if necessary. The hydronic package is supplied from the factory
PT
PT
T1 PP
PP
D
D V
D
PT
PT
ChilledWater Out
Heater
Heater
E
D
PT
Air Separator with Vent*
Strainer/Suction Guide
Reverse Flow Check Valve/Service Valve
Pump
Service Valve
Combination Valve
Isolation Valve*
Pressure Reducing Fill Valve*
Flexible Connections*
Pressure Relief*
ChilledWater In
HYDRONIC PUMP PACKAGE
INSIDEUNIT
OUTSIDEUNIT
20 Mesh Stainer**
T2FS
LEGEND
*Field-supplied and installed.†Factory-installed option.**Required for open loop systems.
D — Drain,3/4-in. NPTD′ — Drain, 1/4-in. NPTE — Expansion Tank Connection, 3/4-in. NPTFS — Flow SwitchPP — Pipe Plug, 1/4-in. NPTPT — Pressure/Temperature TapT1 — Leaving Water ThermistorT2 — Entering Water ThermistorV — Vent, 1/4-in. NPT
Fig. 21 — Typical Piping Diagram on 30XA Units with Hydronic Package — Dual Pumps
a30-4415
44
with a combination valve for isolation of leaving water. Also, ifthe unit is isolated with valves, a properly sized pressure reliefvalve is recommended and should be installed in the pipingbetween the unit and the valves, following all applicable localcodes.Air Separation — For proper system operation, it is essentialthat water loops be installed with proper means to manage airin the system. Free air in the system can cause noise, reduceterminal output, stop flow, or even cause pump failure due topump cavitation. For closed systems, equipment should beprovided to eliminate all air from the system.
The amount of air that water can hold in solution dependson the pressure and temperature of the water/air mixture. Air isless soluble at higher temperatures and at lower pressures.Therefore, separation can best be done at the point of highestwater temperature and lowest pressure. Typically, this pointwould be on the suction side of the pump as the water is return-ing from the system or terminals. This is generally the optimalplace to install an air separator, if possible.
1. Install automatic air vents at all high points in the system.(If the 30XA unit is located at the high point of the sys-tem, a vent can be installed on the piping leaving the heatexchanger on the 1/4 in. NPT female port.)
2. Install an air separator in the water loop, at the placewhere the water is at higher temperatures and lower pres-sures — usually in the chilled water return piping. On aprimary-secondary system, the highest temperature wateris normally in the secondary loop, close to the decoupler.Preference should be given to that point on the system(see Fig. 24). In-line or centrifugal air separators arereadily available in the field.
It may not be possible to install air separators at the place ofthe highest temperature and lowest pressure. In such cases,preference should be given to the points of highest temperature.It is important that the pipe be sized correctly so that free aircan be moved to the point of separation. Generally, a watervelocity of at least 2 feet per second (0.6 m per second) willkeep free air entrained and prevent it from forming air pockets.
Automatic vents should be installed at all physically elevat-ed points in the system so that air can be eliminated during sys-tem operation. Provisions should also be made for manualventing during the water loop fill.
DUAL CHILLER CONTROL — the ComfortLink™ con-troller allows 2 chillers (piped in parallel or series) to operate as asingle chilled water plant with standard control functionscoordinated through the master chiller controller. This standard
ComfortLink feature requires a communication link between the2 chillers.
There are several advantages to this type of control:• redundancy (multiple circuits)• better low load control, (lower tonnage capability)• lower rigging lift weights (2 machines rather than 1 large
machine)• chiller lead-lag operation (evens the wear between the
two machines)Parallel Dual Chiller Operation — Parallel chiller operationis the recommended option for dual chiller control. In this case,each chiller must control its own dedicated pump or isolationvalve. Balancing valves are recommended to insure properflow in each chiller. Two field-supplied and installed dual chill-er leaving water temperature sensors are required, one for eachmodule for this function to operate properly.
Consider adding additional isolation valves to isolate eachchiller to allow for service on a machine, and still allow for par-tial capacity from the other chiller. See Fig 17.Series Dual Chiller Operation — Series chiller operation is analternate control method supported by the ComfortLink™control system. Certain applications might require that the twochillers be connected in series. For nominal 10º F (5.6º C) cool-er ranges, use the Minus 1 Pass cooler arrangements to reducethe fluid-side pressure drop. Use the standard cooler passarrangement for low flow, high cooler temperature riseapplications.
Consider adding additional piping and isolation valves toisolate each chiller to allow for service on a machine, and stillallow for partial capacity from the other chiller. See Fig. 18.
IMPORTANT: Automatic vents should be located inaccessible locations for maintenance purposes andprotected from freezing.
Fig. 22 — Typical Piping Diagram on 30XA Units without Hydronic Package
a30-4416
BAD
BAD
GOOD
GOOD
Fig. 23 — Tank Baffling
a30-3185
45
Table 3 — 30XA Minimum and Maximum Cooler Flow Rates
* For applications requiring cooler leaving water temperature operation at less than40 F (4.4 C), the units require the use of antifreeze and application may requireone of the special order brine option. Contact your local Carrier representative formore information.
† For applications requiring cooler entering water temperature operation at less than45 F (7.2 C), contact your local Carrier representative for unit selection using theCarrier electronic catalog.
NOTE: Nominal flow rates required at ARI (Air Conditioning and RefrigerationInstitute) conditions 44 F (7 C) leaving fluid temperature, 54 F (12 C) enteringwater temperature, 95 F (35 C) ambient. Fouling factor 0.00010 ft2-hr-F/Btu(0.000018 m2-K/kW).
ITEM MINIMUM MAXIMUM NOMINALCooler Leaving Water Temperature* 40 F (4.4 C) 60 F (15 C) —Cooler Entering Water Temperature† 45 F (7.2 C) 70 F (21.1 C) —
30XAUNIT SIZE Cooler Number of
PassesMinimum Flow Rate Maximum Flow Rate Nominal Flow Rate
(gpm) (L/s) (gpm) (L/s) (gpm) (L/s)
080Standard 2 95 6.0 379 23.9
180.4 11.4Plus one pass 3 43 2.7 192 12.1Minus one pass 1 196 12.4 782 49.3
090Standard 2 101 6.4 403 25.4
201.9 12.7Plus one pass 3 43 2.7 200 12.6Minus one pass 1 229 14.4 917 57.9
100Standard 2 101 6.4 403 25.4
225.5 14.2Plus one pass 3 43 2.7 200 12.6Minus one pass 1 229 14.4 917 57.9
110Standard 2 125 7.9 501 31.6
244.9 15.5Plus one pass 3 61 3.8 244 15.4Minus one pass 1 254 16.0 1014 64.0
120Standard 2 125 7.9 501 31.6
264.8 16.7Plus one pass 3 73 4.6 293 18.5Minus one pass 1 281 17.7 1124 70.9
140Standard 2 134 8.5 538 33.9
317.8 20.1Plus one pass 3 73 4.6 293 18.5Minus one pass 1 324 20.4 1296 81.8
160Standard 2 165 10.4 660 41.6
365.1 23.0Plus one pass 3 98 6.2 391 24.7Minus one pass 1 354 22.3 1418 89.5
180Standard 2 202 12.7 807 50.9
409.6 25.8Plus one pass 3 73 4.6 391 24.7Minus one pass 1 416 26.2 1662 104.9
200Standard 2 223 14.1 892 56.3
463.9 29.3Plus one pass 3 98 6.2 391 24.7Minus one pass 1 458 28.9 1833 115.6
220Standard 2 235 14.8 941 59.4
505.9 31.9Plus one pass 3 122 7.7 489 30.9Minus one pass 1 501 31.6 2004 126.4
240Standard 2 266 16.8 1063 67.1
545.8 34.4Plus one pass 3 147 9.3 587 37.0Minus one pass 1 538 33.9 2151 135.7
260Standard 2 257 16.2 1027 64.8
600.3 37.9Plus one pass 3 141 8.9 562 35.5Minus one pass 1 584 36.8 2334 147.3
280Standard 2 293 18.5 1173 74.0
642.2 40.5Plus one pass 3 141 8.9 562 35.5Minus one pass 1 620 39.1 2481 156.5
300Standard 2 327 20.6 1308 82.5
687.5 43.4Plus one pass 3 174 11.0 697 44.0Minus one pass 1 687 43.3 2750 173.5
325Standard 2 361 22.8 1442 91.0
733.4 46.3Plus one pass 3 211 13.3 843 53.2Minus one pass 1 724 45.7 2897 182.8
350Standard 2 379 23.9 1516 95.6
775.4 48.9Plus one pass 3 244 15.4 978 61.7Minus one pass 1 767 48.4 3068 193.6
400Standard 1 501 31.6 2004 126.4
917.6 57.9Plus one pass — — — — —Minus one pass — — — — —
450Standard 1 501 2004
1019.3 64.3Plus one pass — — — — —Minus one pass — — — — —
500Standard 1 501 2004
1092.8 68.9Plus one pass — — — — —Minus one pass — — — — —
46
COOLER PUMP CONTROL — It is recommended thatcooler pump control be utilized on all chillers unless thechilled water pump runs continuously or the chilled water sys-tem contains a suitable antifreeze solution. Units that are notsupplied with a factory-installed hydronic package requireinstallation of the External Pump Control accessory package(Part No. 00EFN900003200A).
If cooler pump control is not utilized it is recommended thatthe chiller be electrically interlocked with the chilled waterpump starter to provide additional protection. The interlockshould be wired to terminals TB5-1 and TB5-2. It is alsorecommended that the cooler pump output be used as an over-ride to the chilled water pump control circuit to provide addi-tional freeze protection, if required.
Refer the Control and Power Wiring Schematic on page 55for proper connection of the cooler pump output. The coolerpump output will remain energized for 30 seconds after allcompressors stop due to an OFF command. In the event afreeze protection alarm is generated, the cooler pump outputwill be energized regardless of the cooler pump control soft-ware configuration. The cooler pump output is also energizedanytime a compressor is started and when certain alarms aregenerated. A thermal flow sensor is factory installed in the en-tering fluid nozzle to prevent operation without flow throughthe cooler. See Fig. 25. The flow sensor is factory wired.
Proper software configuration of the cooler pump controlparameters is required to prevent possible cooler freeze-up.Refer to the Controls, Start-Up, Operation, Service andTroubleshooting guide for more information.BRINE UNITS — Special factory modifications to the unitsare required to allow them to operate at fluid temperaturesless than 40 F (4.4 C). Be sure that the fluid has sufficientinhibited glycol or other suitable corrosion-resistant anti-freeze solution to prevent cooler freeze-up.WATER TREATMENT — Untreated or improperly treatedwater may result in corrosion, scaling, erosion, or algae. Theservices of a qualified water treatment specialist should beobtained to develop and monitor a treatment program.
NOTE: Do not use automobile anti-freeze, or any other fluidthat is not approved for heat exchanger duty. Only use appro-priately inhibited glycols, concentrated to provide adequateprotection for the temperature considered.
PREPARATION FOR YEAR-ROUND OPERATION — Inareas where the piping or unit is exposed to 32 F (0° C) orlower ambient temperatures, freeze-up protection is requiredusing inhibited glycol or other suitable corrosion-resistant anti-freeze solution and electric heater tapes. Heater tapes on pipingshould have a rating for area ambient temperatures and be cov-ered with a suitable thickness of closed-cell insulation. Routepower for the heater tapes from a separately fused disconnect.Mount the disconnect within sight from the unit per local orNEC (National Electric Code) codes. Identify disconnect atheater tape power source with a warning that power must notbe turned off except when servicing unit.
A drain connection is located at the bottom of the coolerhead. See Fig. 2-10 for connection location. Install shut-offvalves to the drain line before filling the system with fluid.
Water must be within design flow limits, clean, and treatedto ensure proper chiller performance and reduce the poten-tial of tube damage due to corrosion, scaling, erosion, andalgae. Carrier assumes no responsibility for chiller damageresulting from untreated or improperly treated water.
IMPORTANT: Adding antifreeze solution is the onlycertain means of protecting the unit from freeze-up ifheater fails or electrical power is interrupted or lostwhile temperatures are below 32 F (0° C).
IMPORTANT: Before starting the unit, be sure all ofthe air has been purged from the system.
Distribution Pump
ExpansionTank(s)
Air Separatorwith Vent
DecouplerC
hille
r 1
Chi
ller
2
Zon
e 1
Zon
e 2
Zon
e 3
NOTE: Expansion tanks for 30XA hydronic kits must be installed for chillers piped in parallel in the primary water loop.
Fig. 24 — Typical Air Separator and Expansion Tank Location on Primary-Secondary Systems
a30-4002
Fig. 25 — Thermal Flow Sensor
a30-3432
47
Low Ambient Temperature Head Pressure Control — If theunit is equipped with the low ambient temperature head pres-sure control option, field-fabricated and field-installed windbaffles are required if the wind velocity is anticipated to begreater than 5 mph (8 km/h). Two different baffles may be re-quired, facing the control box. Wind baffles should be con-structed with minimum 18-gage galvanized sheet metal or oth-er suitable corrosion-resistance material with cross breaks forstrength. See Fig. 26. Use field-supplied screws to attach baf-fles to the corner posts of the machine. Be sure to hem or turn aflange on all edges to eliminate sharp edges on the baffles.
Mount the smaller height baffle on units with a control boxlocated on the end of the unit. It is recommended that the uppernotches be used for mounting the baffles. This reduces the riskof damaging the coil while drilling a mounting hole. Loosenthe upper corner post bolts and slide the baffle under the boltand washer. Tighten the bolt. Drill holes in the bottom of theflange of the baffle and mount with two screws to secure thebottom of the baffle to the corner post. Repeat the process forthe opposite end. See Fig. 26.To avoid possibility of electrical shock, open all discon-
nects before installing or servicing this accessory.
To avoid damage to the refrigerant coils and electrical com-ponents, use extreme care when drilling screw holes andscrewing in fasteners.
Cross break these faces.Hem these 3 edges both top
and bottom.
See Detail A
1880 [74.0]
Detail ATypical Both Flanges
X
180 [7.0]
18 [0.75] 31 [1.25]
18 [0.75]
21 [0.88]
70 [2.75]
305 [12.0]
Fig. 26 — Field-Fabricated and Field-Installed Wind Baffles
NOTES:1. Material: 18 ga. Corrosion Resistant Sheet Metal.2. Dimensions are in mm [inches].
POSITIONBAFFLE HEIGHT (X)
RIGHT END LEFT END30XA080-120(Facing the control box end) 1040 [41.0] 635 [25.0]
30XA140-500(Facing the control box end) 1040 [41.0] 1040 [41.0]
a30-3997
48
Step 4 — Fill the Chilled Water Loop
The chilled water pump (if equipped) is rated for 150 psig(1034 kPa) duty. The maximum cooler fluidside pressure is300 psig (2068 kPa). Check the pressure rating for all of thechilled water devices installed. Do not exceed the lowest pres-sure rated device.WATER SYSTEM CLEANING — Proper water systemcleaning is of vital importance. Excessive particulates in thewater system can cause excessive pump seal wear, reduce orstop flow, and cause damage of other components.
1. Install a temporary bypass around the chiller to avoidcirculating dirty water and particulates into the pumppackage and chiller during the flush. Use a temporarycirculating pump during the cleaning process. Also, besure that there is capability to fully drain the system aftercleaning. See Fig. 27.
2. Be sure to use a cleaning agent that is compatible withall system materials. Be especially careful if the systemcontains any galvanized or aluminum components. Bothdetergent-dispersant and alkaline-dispersant cleaningagents are available.
3. It is recommended to fill the system through a watermeter. This provides a reference point for the future forloop volume readings, and it also establishes the correctquantity of cleaner needed in order to reach the requiredconcentration.
4. Use a feeder/transfer pump to mix the solution and fill thesystem. Circulate the cleaning system for the length oftime recommended by the cleaning agent manufacturer.a. After cleaning, drain the cleaning fluid and flush the
system with fresh water. b. A slight amount of cleaning residue in the system can
help keep the desired, slightly alkaline, water pH of 8to 9. Avoid a pH greater than 10, since this willadversely affect pump seal components.
c. A side stream filter is recommended (see Fig. 28 dur-ing the cleaning process. Filter side flow rate shouldbe enough to filter the entire water volume every 3 to4 hours. Change filters as often as necessary duringthe cleaning process.
d. Remove temporary bypass when cleaning is complete.A suction guide with an internal strainer is standard on all
30XA units with factory-installed hydronic packages. Thisstrainer allows removal of particulates from the chilledwater loop. Using the combination valve and the field-installedisolation valve at the inlet, the strainer can be isolated from thechilled water loop to be cleaned.
The Carrier ComfortLink™ controls provided have a built-in feature to remind building owners or operators to clean thestrainer at a pre-set time interval. Properly installed, cleanedand maintained systems will rarely need the strainer cleanedafter the initial fill. This time interval is user-configurable.
Ideally, the chilled water loop will be cleaned before the unitis connected. If the run-in screen is left in the suction guide/strainer, it is recommended that the Service Maintenance be setto alert the operator within 24 hours of start-up to be sure thatthe run-in screen in the suction guide/strainer is removed after24 hours of operation.NOTE: The suction guide/strainer must be removed after thefirst 24 hours of operation.
To set the time for the parameter, go to Time Clock/MCFG/W.FIL in the handheld Navigator™ display. To set the time forthe parameter with the Touch Pilot™ display, go to MainMenu/Service/MAINTCFG/wfilter_c. Values for this item areinput in days.WATER TREATMENT — Fill the fluid loop with water (orbrine) and a corrosion-resistant inhibitor suitable for the waterof the area. Consult the local water treatment specialist forcharacteristics of system water and a recommended inhibitorfor the cooler fluid loop.SYSTEM PRESSURIZATION — A proper initial cold fillpressure must be established before filling of the unit. Theinitial cold fill pressure is the pressure applied at the fillingpoint to fill a system to its highest point, plus a minimumpressure at the top of the system (4 psig minimum [27.6 kPa])to operate air vents and positively pressurize the system. Theexpansion tank is very important to system pressurization. Theexpansion tank serves several purposes:
1. Provide NPSHR (Net Positive Suction Head Required)for the pump to operate satisfactorily.
2. Set system pressure.3. Accommodate expansion/contraction of water due to
temperature changes.4. Acts as a pressure reference for the pump.The expansion tank pressure must be set BEFORE the
system is filled. Follow the manufacturer’s recommendationfor instructions on setting the pressure in the expansion tank.NPSHR information is provided on the Pump Curves inFig. 29-32 for units with factory-installed hydronic kits. SeeTable 4 for pump impeller sizes.
Once the system is pressurized, the pressure at the connec-tion point of the expansion tank to water piping will not changeunless the water loop volume changes (either due to addition/subtraction of water or temperature expansion/contraction).The pressure at this point remains the same regardless ofwhether or not the pump is running.
IMPORTANT: Before starting unit, be sure all of theair has been purged from the system.
x
x
DILUTEDCLEANING
AGENT
SYSTEM
POT FEEDER ANDTRANSFER PUMP
30XA UNIT
TEMPORARYBYPASS
TEMPORARYPUMP
TO DRAIN
Fig. 27 — Typical Set Up for Cleaning Process
a30-4411
x
x
DILUTEDCLEANING
AGENT
SYSTEM
SIDESTREAMFILTER
POT FEEDER ANDTRANSFER PUMP
30XA UNITTEMPORARYPUMP
TEMPORARYBYPASS
TO DRAIN
Fig. 28 — Cleaning Using a Side Stream Filter
a30-4412
49
Since the expansion tank acts as a reference point for thepump, there cannot be two reference points (two expansiontanks) in a system, unless manifolded together. Where two ormore 30XA chillers with the hydronic option are installed inparallel, there should not be more than one expansion tank inthe system, unless manifolded together as seen in Fig. 24. It ispermissible to install the expansion tank(s) in a portion of thereturn water line that is common to all pumps, providing thatthe tank is properly sized for combined system volume.
If the application involves two or more chillers in a primarysecondary system, a common place for mounting the expan-sion tank is in the chilled water return line, just before thedecoupler. See Fig. 24 for placement of expansion tank inprimary-secondary systems.
If a diaphragm expansion tank is utilized (a flexiblediaphragm physically separates the water/air interface) it is notrecommended to have any air in the water loop. See the sectionon air separation on page 44 for instructions on providing airseparation equipment.FILLING THE SYSTEM — The initial fill of the chilledwater system must accomplish three goals:
1. The entire piping system must be filled with water.2. The pressure at the top of the system must be high enough
to vent air from the system (usually 4 psig [27.6 kPa] isadequate for most vents).
3. The pressure at all points in the system must be highenough to prevent flashing in the piping or cavitation inthe pump.
The pressure created by an operating pump affects systempressure at all points except one — the connection of theexpansion tank to the system. This is the only location in thesystem where pump operation will not give erroneous pressureindications during the fill. Therefore, the best location to installthe fill connection is close to the expansion tank. An air ventshould be installed close by to help eliminate air that entersduring the fill procedure.When filling the system, ensure the following:
1. Remove temporary bypass piping and cleaning/flushingequipment.
2. Check to make sure all drain plugs are installed.Normally, a closed system needs to be filled only once. The
actual filling process is a fairly simple procedure. All air shouldbe purged or vented from the system. Thorough venting at highpoints and circulation at room temperature for several hours ishighly recommended.NOTE: Local codes concerning backflow devices and otherprotection of the city water system should be consulted andfollowed to prevent contamination of the public water supply.This is critical when anti-freeze is used in the system.SET WATER FLOW RATE — Once the system is cleaned,pressurized, and filled, the flow rate through the chiller needsto be established. On units with the hydronic package, this canbe accomplished by using the balancing valve. Follow themanufacturer’s recommendations for setting the balancingvalve. Local codes may prohibit restricting the amount of waterusing the balancing valve for a given motor horsepower. In thiscase, use the method listed in the Pump Modification/Trimming section. See below for the type of combination valvein 30XA units with the optional hydronic package.
NOTE: Carrier recommends a differential pressure gage whenmeasuring pressures across the pumps or balancing valves.This provides for greater accuracy and reduces error build-upthat often occurs when subtracting pressures made by differentgages.
A rough estimate of water flow can also be obtained fromthe pressure gages across the 30XA heat exchanger.
Figure 29 and 30 shows the relationship between gpm andheat exchanger pressure drop. It should be noted that thesecurves are for fresh water and “clean” heat exchangers; they donot apply to heat exchangers with fouling. To read the chart,subtract the readings of the two pressure gages on the hydronickit. This number is the pressure drop across the heat exchanger.Adjust the factory-installed balancing valve or external balanc-ing valve (in units without hydronic package) until the correctpressure drop is obtained for the required flow.
Table 4 — Pump Impeller Sizes
*Option Code refers to the Hydronics Option (position 11) in the model number. See Fig. 1 for option identification.
LEGENDNPSHr — Net Positive Suction Head (Pressure) RequiredNOTE: Refer to Fig. 1 for option identification. Refer to Table 4 for more information.
Fig. 31 — Pump Curve I for Hydronic Package Single Pump (Fresh Water)
LEGENDNPSHr — Net Positive Suction Head (Pressure) RequiredNOTE: Refer to Fig. 1 for option identification. Refer to Table 4 for more information.
Fig. 32 — Pump Curve II for Hydronic Package Dual Pump (Fresh Water)
a30-4441
a30-4442
53
PUMP MODIFICATION/TRIMMING — Since the pumpsare constant speed, the only way to obtain greater flow with agiven pump/impeller is to decrease system head. This willallow the pump to “ride” its curve to the right, resulting inincreased flow. If greater flow is necessary, consider openingthe combination valve. Also, verify that the strainer is clean,and that no unnecessary system resistance is present, such aspartially closed isolation valves.
Once the combination valve is set, note the stem position. Iflater service work requires the valve to be closed, it will be easierto re-balance the system, if the original balance point is known.
Increasing system resistance by closing the balancing valvewill force the pump to “ride” its curve to the left, resulting inless flow. Although this does reduce power consumptionslightly, it may not be the desirable method of reducing theflow, especially if a large reduction is needed.
The other method for reducing flow on a constant speedpump is impeller trimming. The impellers in the pumps provid-ed in the 30XA hydronic kit can be easily removed for thispurpose. Refer to the vendor literature packet supplied with thehydronic package information on Seal Replacement in theService Section, and follow instructions for impeller removaland trimming. See Fig. 29 and 30 for pump envelope curve in-formation. Trimming should only be done by a qualified ma-chine shop that has experience in this operation. Contact yourlocal Carrier representative for a recommended machine shop.
Impeller trimming has the added benefit of maximum bhp(brake horsepower) savings, which can recover the costincurred by performing the impeller trimming.FREEZE PROTECTION — The 30XA units are providedwith a flow switch to protect against freezing situations thatoccur from no water flow. While the flow switch is helpful inpreventing freezing during no-flow situations, it does notprotect the chiller in case of power failure during sub-freezingambient temperatures, or in other cases where water tempera-ture falls below the freezing mark. Appropriate concentrationsof inhibited propylene or ethylene glycol or other suitableinhibited antifreeze solution should be considered for chillerprotection where ambient temperatures are expected to fallbelow 32 F (0° C). Consult local water treatment specialist oncharacteristics of the system water and add a recommendedinhibitor to the chilled water. The Carrier warranty does notcover damage due to freezing.
If the pump will be subjected to freezing temperatures, stepsmust be taken to prevent freeze damage. If the pump will notbe used during this time, it is recommended to drain the pumpand hydronic package and these components are back-flushedwith inhibited glycol. Otherwise, a glycol-water solutionshould be considered as the heat transfer fluid. Drains are locat-ed on the pump(s) and suction guide/strainer for units with hy-dronic kits. Units without hydronic kits have a drain plugmounted on the bottom of the cooler head at each end of thecooler.
NOTE: Do not use automobile anti-freeze, or any other fluidthat is not approved for heat exchanger duty. Only use appro-priately inhibited glycols, concentrated to provide adequateprotection for the temperature considered.
Use an electric tape heater for the external piping, if unitwill be exposed to freezing temperatures.
Ensure that power is available to the chiller at all times,even during the off-season, so that the pump and cooler heatershave power. Also make sure that the piping tape heaters havepower.
On units with pump packages, a heater is supplied with thehydronic package that will protect this section from freezing inoutdoor-air temperatures down to –20 F (–29 C), except in thecase of a power failure. The Carrier warranty does not coverdamage due to freezing.
Cooler heaters that will protect components down to –20 F(–28.9 C) can be ordered as a factory-installed option. Again, itshould be noted that these heaters will not protect the coolerfrom freezing in the event of a power failure. The Carrierwarranty does not cover damage due to freezing.PREPARATION FOR WINTER SHUTDOWN — If the unitis not operational during the winter months, at the end of coolingseason complete the following steps.
1. If the unit has optional heater tapes on the cooler and thecooler will not be drained, do not shut off power discon-nect during off-season shutdown. If the unit has optionalheater tapes on the cooler and the cooler is drained, openthe circuit breaker for the heater, CB-13 or shut off powerduring off-season shutdown.
2. Draining the fluid from the system is highly recommend-ed. If the unit is equipped with a hydronic package, thereare additional drains in the pump housing and strainerthat must be opened to allow for all for all of the water todrain.
3. Isolate the cooler from the rest of the system with watershutoff valves.
4. Replace the drain plug and completely fill the cooler witha mixture of water and a suitable corrosion-inhibited anti-freeze solution such as propylene glycol. The concentra-tion should be adequate to provide freeze protection to15° F (8.3° C) below the expected low ambient tempera-ture conditions. Anti-freeze can be added through thevent on top of the cooler. If the unit has a hydronic pumppackage, the pump must be treated in the same manner.
5. Leave the cooler filled with the antifreeze solution for thewinter, or drain if desired. Be sure to deenergize heaters(if installed) as explained in Step 1 to prevent damage.Use an approved method of disposal when removing anti-freeze solution.
At the beginning of the next cooling season, be sure thatthere is refrigerant pressure on each circuit before refillingcooler, add recommended inhibitor, and reset the CB-HT (cir-cuit breaker heater) (if opened) or restore power.
After trimming, the impeller MUST be balanced. Failure tobalance trimmed impellers can result in excessive vibra-tion, noise, and premature bearing failure.
Failure to remove power before draining heater equippedcoolers and hydronic packages can result in heater tape andinsulation damage.
54
Step 5 — Make Electrical Connections
POWER SUPPLY — The electrical characteristics of theavailable power supply must agree with the unit nameplaterating. Supply voltage must be within the limits shown. SeeTables 5-11 for electrical and configuration data.FIELD POWER CONNECTIONS (See Fig. 33) — All powerwiring must comply with applicable local and national codes.Install field-supplied, branch circuit fused disconnect(s) of atype that can be locked off or open. Disconnect(s) must be locat-ed within sight and readily accessible from the unit in compli-ance with NEC Article 440-14 (U.S.A.). See Tables 5-11 forunit electrical data.
Maximum wire size that the unit terminal block or non-fused disconnect will accept is 500 kcmil.POWER WIRING — All power wiring must comply with ap-plicable local and national codes. Install field-supplied branchcircuit fused disconnect per NEC of a type that can be lockedOFF or OPEN. Disconnect must be within sight and readily ac-cessible from the unit in compliance with NEC Article 440-14.In the power box, 7/8 in. holes are provided for power entry.The holes will need to bee enlarged to accept the appropriateconduit. NEC also requires all conduits from a conditionedspace to the power box(es) be sealed to prevent airflow andmoisture into the control box.
The 30XA units require 1 or 2 power supplies, dependingon the unit and circuit voltage. See Tables 5-8 for chiller elec-trical data. Cooler and pump heaters, if factory-installed, arewired in the control circuit. Heaters on chillers with the option-al control transformer will be capable of operation only whenthe main power supply to the chiller is on. On chillers with sep-arate control power, the heaters are capable of operation when-ever the control power is supplied.FIELD CONTROL POWER CONNECTIONS (SeeFig. 33) — All units require 115-1-60 control circuit power,unless the control transformer option is installed.
Terminals TB5-1 and TB5-2 are provided for field installa-tion of a chilled water (fluid) pump interlock (CWPI). Thechilled water (fluid) flow sensor (CWFS) is factory installed.These devices are to be installed in series. Contacts must berated for dry-circuit applications capable of handling a 24-vacat 50 mA load.
An accessory remote on-off switch can be wired into TB5-9and TB5-10. Contacts must be rated for dry-circuit applicationscapable of handling a 24-vac at 50 mA load.
Terminals 11 and 13 of TB5 are for control of the chilledwater pump 1 (PMP1) starter. Terminals 13 and 15 of TB5 arefor control of the chilled water pump 2 (PMP2) starter.
Electrical shock can cause personal injury and death. Shutoff all power to this equipment during installation. Theremay be more than one disconnect switch. Tag all discon-nect locations to alert others not to restore power until workis completed.
IMPORTANT: The 30XA units have a factory-installedoption available for a non-fused disconnect for unit powersupply. If the unit is equipped with this option, all fieldpower wiring should be made to the non-fused disconnectsince no terminal blocks are supplied.
Do not use interlocks or other safety device contactsconnected between TB5-9 and TB5-10 as remote on-off.Connection of safeties or other interlocks between these2 terminals will result in an electrical bypass if theENABLE-OFF-REMOTE contact switch is in theENABLE position. If remote on-off unit control is required,a field-supplied relay must be installed in the unit controlbox and wired as shown in Fig. 33. Failure to wire theremote on-off as recommended may result in tube freezedamage.
55
Fig
. 33
— C
on
tro
l an
d P
ow
er W
irin
g S
chem
atic
a30-4443
56
Table 5 — 30XA080-350* Electrical Data, Single Point (Standard Condenser Fan Motors)
LEGEND
*30XA400-500 units are not available with single point power.
NOTES:
1. Units are suitable for use on electrical systems where voltage supplied to the unitterminals is not below or above the listed minimum and maximum limits. Maximumallowable phase imbalance is: voltage, 2%; amps 10%.
2. Cooler heater is wired into the control circuit so it is always operable as long as thecontrol power supply disconnect is on, even if any safety device is open.
3. For MCA that is less than or equal to 380 amps, 3 conductors are required.For MCA between 381-760 amps, 6 conductors are required.For MCA between 761-1140 amps, 9 conductors are required.For MCA between 1141-1520 amps, 12 conductors are required.Calculation of conductors required is based on 75 C copper wire.
4. Wiring for main field supply must be rated 75 C minimum. Use copper for all units.a. Incoming wire size range for the terminal block is no. 4 AWG (American Wire Gage)
to 500 kcmil.b. Incoming wire size range of non-fused disconnect with MCA up to 599.9 amps is
3/0 to 500 kcmil.c. Incoming wire size range of non-fused disconnect with MCA from 600 to 799.9 amps
is 1/0 to 500 kcmil.d. Incoming wire size range of non-fused disconnect with MCA from 800 to 1199.9 amps
is 250 kcmil to 500 kcmil.5. Data provided circuit 1/circuit 2 where there are two circuits.
UNIT30XA
UNIT VOLTAGE NUMBEROF
CONDREQ’D
NO HYDRONIC PACKAGE 5 HP PUMP, 3450 RPM 7.5 HP PUMP, 3450 RPM CONTROL CIRCUIT
ICF — Instantaneous Current FlowMCA — Minimum Circuit AmpsMOCP — Maximum Overcurrent ProtectionWD — Wye-DeltaXL — Across-the-Line
57
Table 5 — 30XA080-350* Electrical Data, Single Point (Standard Condenser Fan Motors) (cont)
LEGEND
*30XA400-500 units are not available with single point power.
NOTES:
1. Units are suitable for use on electrical systems where voltage supplied to the unitterminals is not below or above the listed minimum and maximum limits. Maximumallowable phase imbalance is: voltage, 2%; amps 10%.
2. Cooler heater is wired into the control circuit so it is always operable as long as thecontrol power supply disconnect is on, even if any safety device is open.
3. For MCA that is less than or equal to 380 amps, 3 conductors are required.For MCA between 381-760 amps, 6 conductors are required.For MCA between 761-1140 amps, 9 conductors are required.For MCA between 1141-1520 amps, 12 conductors are required.
Calculation of conductors required is based on 75 C copper wire.4. Wiring for main field supply must be rated 75 C minimum. Use copper for all units.
a. Incoming wire size range for the terminal block is no. 4 AWG (American Wire Gage)to 500 kcmil.
b. Incoming wire size range of non-fused disconnect with MCA up to 599.9 amps is3/0 to 500 kcmil.
c. Incoming wire size range of non-fused disconnect with MCA from 600 to 799.9 ampsis 1/0 to 500 kcmil.
d. Incoming wire size range of non-fused disconnect with MCA from 800 to 1199.9 ampsis 250 kcmil to 500 kcmil.
5. Data provided circuit 1/circuit 2 where there are two circuits.
UNIT30XA
UNIT VOLTAGE NUMBEROF
CONDREQ’D
10 HP PUMP, 3450 RPM 15 HP PUMP, 3450 RPM CONTROL CIRCUIT
ICF — Instantaneous Current FlowMCA — Minimum Circuit AmpsMOCP — Maximum Overcurrent ProtectionWD — Wye-DeltaXL — Across-the-Line
58
Table 6 — 30XA080-500 Electrical Data, Dual Point (Standard Condenser Fan Motors)
LEGEND
NOTES:
1. Units are suitable for use on electrical systems where voltage supplied to the unitterminals is not below or above the listed minimum and maximum limits. Maximumallowable phase imbalance is: voltage, 2%; amps 10%.
2. Cooler heater is wired into the control circuit so it is always operable as long as thecontrol power supply disconnect is on, even if any safety device is open.
3. For MCA that is less than or equal to 380 amps, 3 conductors are required.
For MCA between 381-760 amps, 6 conductors are required.For MCA between 761-1140 amps, 9 conductors are required.For MCA between 1141-1520 amps, 12 conductors are required.Calculation of conductors required is based on 75 C copper wire.
4. Wiring for main field supply must be rated 75 C minimum. Use copper for all units.a. Incoming wire size range for the terminal block is no. 4 AWG (American Wire Gage)
to 500 kcmil.b. Incoming wire size range of non-fused disconnect with MCA up to 599.9 amps is
3/0 to 500 kcmil.c. Incoming wire size range of non-fused disconnect with MCA from 600 to 799.9 amps
is 1/0 to 500 kcmil.d. Incoming wire size range of non-fused disconnect with MCA from 800 to 1199.9 amps
is 250 kcmil to 500 kcmil.5. Data provided circuit 1/circuit 2 where there are two circuits.
UNIT30XA
UNIT VOLTAGE NUMBEROF
CONDREQ’D
NO HYDRONIC PACKAGE 5 HP PUMP, 3450 RPM CONTROL CIRCUIT
ICF — Instantaneous Current FlowMCA — Minimum Circuit AmpsMOCP — Maximum Overcurrent ProtectionWD — Wye-DeltaXL — Across-the-Line
59
Table 6 — 30XA080-500 Electrical Data, Dual Point (Standard Condenser Fan Motors) (cont)
LEGEND
NOTES:
1. Units are suitable for use on electrical systems where voltage supplied to the unitterminals is not below or above the listed minimum and maximum limits. Maximumallowable phase imbalance is: voltage, 2%; amps 10%.
2. Cooler heater is wired into the control circuit so it is always operable as long as thecontrol power supply disconnect is on, even if any safety device is open.
3. For MCA that is less than or equal to 380 amps, 3 conductors are required.
For MCA between 381-760 amps, 6 conductors are required.For MCA between 761-1140 amps, 9 conductors are required.For MCA between 1141-1520 amps, 12 conductors are required.Calculation of conductors required is based on 75 C copper wire.
4. Wiring for main field supply must be rated 75 C minimum. Use copper for all units.a. Incoming wire size range for the terminal block is no. 4 AWG (American Wire Gage)
to 500 kcmil.b. Incoming wire size range of non-fused disconnect with MCA up to 599.9 amps is
3/0 to 500 kcmil.c. Incoming wire size range of non-fused disconnect with MCA from 600 to 799.9 amps
is 1/0 to 500 kcmil.d. Incoming wire size range of non-fused disconnect with MCA from 800 to 1199.9 amps
is 250 kcmil to 500 kcmil.5. Data provided circuit 1/circuit 2 where there are two circuits.
UNIT30XA
UNIT VOLTAGE NUMBEROF
CONDREQ’D
7.5 HP PUMP, 3450 RPM 10 HP PUMP, 3450 RPM CONTROL CIRCUIT
ICF — Instantaneous Current FlowMCA — Minimum Circuit AmpsMOCP — Maximum Overcurrent ProtectionWD — Wye-DeltaXL — Across-the-Line
60
Table 6 — 30XA080-500 Electrical Data, Dual Point (Standard Condenser Fan Motors) (cont)
LEGEND
NOTES:
1. Units are suitable for use on electrical systems where voltage supplied to the unitterminals is not below or above the listed minimum and maximum limits. Maximumallowable phase imbalance is: voltage, 2%; amps 10%.
2. Cooler heater is wired into the control circuit so it is always operable as long as thecontrol power supply disconnect is on, even if any safety device is open.
3. For MCA that is less than or equal to 380 amps, 3 conductors are required.
For MCA between 381-760 amps, 6 conductors are required.For MCA between 761-1140 amps, 9 conductors are required.For MCA between 1141-1520 amps, 12 conductors are required.Calculation of conductors required is based on 75 C copper wire.
4. Wiring for main field supply must be rated 75 C minimum. Use copper for all units.a. Incoming wire size range for the terminal block is no. 4 AWG (American Wire Gage)
to 500 kcmil.b. Incoming wire size range of non-fused disconnect with MCA up to 599.9 amps is
3/0 to 500 kcmil.c. Incoming wire size range of non-fused disconnect with MCA from 600 to 799.9 amps
is 1/0 to 500 kcmil.d. Incoming wire size range of non-fused disconnect with MCA from 800 to 1199.9 amps
is 250 kcmil to 500 kcmil.5. Data provided circuit 1/circuit 2 where there are two circuits.
ICF — Instantaneous Current FlowMCA — Minimum Circuit AmpsMOCP — Maximum Overcurrent ProtectionWD — Wye-DeltaXL — Across-the-Line
61
Table 7 — 30XA140-500 Electrical Data, Single Point (High Ambient Option)
LEGEND
NOTES:
1. Units are suitable for use on electrical systems where voltage supplied to the unitterminals is not below or above the listed minimum and maximum limits. Maximumallowable phase imbalance is: voltage, 2%; amps 10%.
2. Cooler heater is wired into the control circuit so it is always operable as long as thecontrol power supply disconnect is on, even if any safety device is open.
3. For MCA that is less than or equal to 380 amps, 3 conductors are required.
For MCA between 381-760 amps, 6 conductors are required.For MCA between 761-1140 amps, 9 conductors are required.For MCA between 1141-1520 amps, 12 conductors are required.Calculation of conductors required is based on 75 C copper wire.
4. Wiring for main field supply must be rated 75 C minimum. Use copper for all units.a. Incoming wire size range for the terminal block is no. 4 AWG (American Wire Gage)
to 500 kcmil.b. Incoming wire size range of non-fused disconnect with MCA up to 599.9 amps is
3/0 to 500 kcmil.c. Incoming wire size range of non-fused disconnect with MCA from 600 to 799.9 amps
is 1/0 to 500 kcmil.d. Incoming wire size range of non-fused disconnect with MCA from 800 to 1199.9 amps
is 250 kcmil to 500 kcmil.5. Data provided circuit 1/circuit 2 where there are two circuits.
UNIT30XA
UNIT VOLTAGE NUMBEROF
CONDREQ’D
NO HYDRONIC PACKAGE 5 HP PUMP, 3450 RPM 7.5 HP PUMP, 3450 RPM CONTROL CIRCUIT
ICF — Instantaneous Current FlowMCA — Minimum Circuit AmpsMOCP — Maximum Overcurrent ProtectionWD — Wye-DeltaXL — Across-the-Line
62
Table 7 — 30XA140-500 Electrical Data, Single Point (High Ambient Option) (cont)
LEGEND
NOTES:
1. Units are suitable for use on electrical systems where voltage supplied to the unitterminals is not below or above the listed minimum and maximum limits. Maximumallowable phase imbalance is: voltage, 2%; amps 10%.
2. Cooler heater is wired into the control circuit so it is always operable as long as thecontrol power supply disconnect is on, even if any safety device is open.
3. For MCA that is less than or equal to 380 amps, 3 conductors are required.
For MCA between 381-760 amps, 6 conductors are required.For MCA between 761-1140 amps, 9 conductors are required.For MCA between 1141-1520 amps, 12 conductors are required.Calculation of conductors required is based on 75 C copper wire.
4. Wiring for main field supply must be rated 75 C minimum. Use copper for all units.a. Incoming wire size range for the terminal block is no. 4 AWG (American Wire Gage)
to 500 kcmil.b. Incoming wire size range of non-fused disconnect with MCA up to 599.9 amps is
3/0 to 500 kcmil.c. Incoming wire size range of non-fused disconnect with MCA from 600 to 799.9 amps
is 1/0 to 500 kcmil.d. Incoming wire size range of non-fused disconnect with MCA from 800 to 1199.9 amps
is 250 kcmil to 500 kcmil.5. Data provided circuit 1/circuit 2 where there are two circuits.
UNIT30XA
UNIT VOLTAGE NUMBEROF
CONDREQ’D
10 HP PUMP, 3450 RPM 15 HP PUMP, 3450 RPM CONTROL CIRCUIT
1. Units are suitable for use on electrical systems where voltage supplied to the unitterminals is not below or above the listed minimum and maximum limits. Maximumallowable phase imbalance is: voltage, 2%; amps 10%.
2. Cooler heater is wired into the control circuit so it is always operable as long as thecontrol power supply disconnect is on, even if any safety device is open.
3. For MCA that is less than or equal to 380 amps, 3 conductors are required.
For MCA between 381-760 amps, 6 conductors are required.For MCA between 761-1140 amps, 9 conductors are required.For MCA between 1141-1520 amps, 12 conductors are required.Calculation of conductors required is based on 75 C copper wire.
4. Wiring for main field supply must be rated 75 C minimum. Use copper for all units.a. Incoming wire size range for the terminal block is no. 4 AWG (American Wire Gage)
to 500 kcmil.b. Incoming wire size range of non-fused disconnect with MCA up to 599.9 amps is
3/0 to 500 kcmil.c. Incoming wire size range of non-fused disconnect with MCA from 600 to 799.9 amps
is 1/0 to 500 kcmil.d. Incoming wire size range of non-fused disconnect with MCA from 800 to 1199.9 amps
is 250 kcmil to 500 kcmil.5. Data provided circuit 1/circuit 2 where there are two circuits.
UNIT30XA
UNIT VOLTAGE NUMBEROF
CONDREQ’D
NO HYDRONIC PACKAGE 5 HP PUMP, 3450 RPM CONTROL CIRCUIT
1. Units are suitable for use on electrical systems where voltage supplied to the unitterminals is not below or above the listed minimum and maximum limits. Maximumallowable phase imbalance is: voltage, 2%; amps 10%.
2. Cooler heater is wired into the control circuit so it is always operable as long as thecontrol power supply disconnect is on, even if any safety device is open.
3. For MCA that is less than or equal to 380 amps, 3 conductors are required.
For MCA between 381-760 amps, 6 conductors are required.For MCA between 761-1140 amps, 9 conductors are required.For MCA between 1141-1520 amps, 12 conductors are required.Calculation of conductors required is based on 75 C copper wire.
4. Wiring for main field supply must be rated 75 C minimum. Use copper for all units.a. Incoming wire size range for the terminal block is no. 4 AWG (American Wire Gage)
to 500 kcmil.b. Incoming wire size range of non-fused disconnect with MCA up to 599.9 amps is
3/0 to 500 kcmil.c. Incoming wire size range of non-fused disconnect with MCA from 600 to 799.9 amps
is 1/0 to 500 kcmil.d. Incoming wire size range of non-fused disconnect with MCA from 800 to 1199.9 amps
is 250 kcmil to 500 kcmil.5. Data provided circuit 1/circuit 2 where there are two circuits.
UNIT30XA
UNIT VOLTAGE NUMBEROF
CONDREQ’D
7.5 HP PUMP, 3450 RPM 10 HP PUMP, 3450 RPM CONTROL CIRCUIT
1. Units are suitable for use on electrical systems where voltage supplied to the unitterminals is not below or above the listed minimum and maximum limits. Maximumallowable phase imbalance is: voltage, 2%; amps 10%.
2. Cooler heater is wired into the control circuit so it is always operable as long as thecontrol power supply disconnect is on, even if any safety device is open.
3. For MCA that is less than or equal to 380 amps, 3 conductors are required.
For MCA between 381-760 amps, 6 conductors are required.For MCA between 761-1140 amps, 9 conductors are required.For MCA between 1141-1520 amps, 12 conductors are required.Calculation of conductors required is based on 75 C copper wire.
4. Wiring for main field supply must be rated 75 C minimum. Use copper for all units.a. Incoming wire size range for the terminal block is no. 4 AWG (American Wire Gage)
to 500 kcmil.b. Incoming wire size range of non-fused disconnect with MCA up to 599.9 amps is
3/0 to 500 kcmil.c. Incoming wire size range of non-fused disconnect with MCA from 600 to 799.9 amps
is 1/0 to 500 kcmil.d. Incoming wire size range of non-fused disconnect with MCA from 800 to 1199.9 amps
is 250 kcmil to 500 kcmil.5. Data provided circuit 1/circuit 2 where there are two circuits.
ICF — Instantaneous Current FlowMCA — Minimum Circuit AmpsMOCP — Maximum Overcurrent ProtectionWD — Wye-DeltaXL — Across-the-Line
66
Table 9 — Power and Control Connections
*COMBI box is located at the end of the unit.†PEB1 and PEB2 boxes are located on the side of the unit. If both boxes are used, the one on the left (viewing from the front of the boxes) is PEB1.
**For dual incoming power.Shaded area means that box is not used on this model.
NOTE: Shaded portions of Table indicate that the power and control connection is not available.
200230380 Circuit 1 No Circuit 2 Yes460 Circuit 1 No Circuit 2 Yes575 Circuit 1 No Circuit 2 Yes
67
Table 10 — Compressor and Fan Electrical Data
LEGEND
*Quantity of fan motors for incoming power supply Circuit 1/Circuit 2.
NOTES:1. For 30XA080-350 units with dual power supply, main power supply 1 uses refrigerant
circuit A components to calculate MCA and MOCP. Main power supply 2 uses refriger-ant circuit B components to calculate MCA and MOCP.
2. 30XA400-500 units have dual power supply. Main power supply 1 uses refrigerant cir-cuit C components to calculate MCA and MOCP. Main power supply 2 uses refrigerantcircuit A and B components to calculate MCA and MOCP.
CARRIER COMFORT NETWORK® COMMUNICATIONBUS WIRING (See Fig. 34) — The communication bus wiringis a shielded, 3-conductor cable with drain wire and is fieldsupplied and installed in the field.
The system elements are connected to the communicationbus in a daisy chain arrangement. The positive pin of eachsystem element communication connector must be wired to thepositive pins of the system elements on either side of it. This isalso required for the negative and signal ground pins ofeach system element. Wiring connections for CCN (CarrierComfort Network) should be made at TB (terminal block) 3.Consult the CCN Contractor’s Manual for further information.See Fig. 34.NOTE: Conductors and drain wire must be 20 AWG(American Wire Gage) minimum stranded, tinned copper.Individual conductors must be insulated with PVC, PVC/nylon, vinyl, Teflon, or polyethylene. An aluminum/polyester100% foil shield and an outer jacket of PVC, PVC/nylon,chrome vinyl, or Teflon with a minimum operating tempera-ture range of –4 F (–20 C) to 140 F (60 C) is required. SeeTable 12 for a list of manufacturers that produce CCN buswiring that meet these requirements.
Table 12 — CCN Communication Bus Wiring
It is important when connecting to a CCN communicationbus that a color coding scheme be used for the entire networkto simplify the installation. It is recommended that red be usedfor the signal positive, black for the signal negative, and whitefor the signal ground. Use a similar scheme for cables contain-ing different colored wires. At each system element, the shieldsof its communication bus cables must be tied together. If thecommunication bus is entirely within one building, the result-ing continuous shield must be connected to a ground at onepoint only. If the communication bus cable exits from onebuilding and enters another, the shields must be connected togrounds at the lightning suppressor in each building where thecable enters or exits the building (one point per building only).To connect the unit to the network:
1. Turn off power to the control box.
2. Cut the CCN wire and strip the ends of the red (+), white(ground), and black (–) conductors. Substitute appropri-ate colors for different colored cables.
3. Connect the red wire to (+) terminal on TB3 of the plug,the white wire to COM terminal, and the black wire to the(–) terminal.
4. The RJ14 CCN connector on TB3 can also be used, but isonly intended for temporary connection (for example, alaptop computer running service tool).
NON-CCN COMMUNICATION WIRING — The 30XA unitsoffer several non-CCN translators. Refer to the separate installa-tion instructions for additional wiring steps.FIELD CONTROL OPTION WIRING — Install field controlwiring options. Some options, such as 4 to 20 mA demandlimit that requires the Energy Management Module, mayrequire that accessories be installed first (if not factoryinstalled) for terminal connections.DUAL CHILLER LEAVING WATER SENSOR — If the dualchiller algorithm is used and the machines are installed in par-allel, an additional chilled water sensor must be installed foreach chiller. Install the wells in the common leaving waterheader. See Fig 35. DO NOT relocate the chiller’s leavingwater thermistors. They must remain in place for the unit tooperate properly.
The thermistor well is a 1/4 in. NPT fitting for securing thewell in the piping. The piping must be drilled and tapped forthe well. Select a location that will allow for removal of thethermistor without any restrictions.
Once the well is inserted, install the thermistors. Insert thethermistor into the well until the o-ring reaches the well body.Use the nut on the thermistor to secure the thermistor in place.Once the thermistor is in place, it is recommended that athermistor wire loop be made and secured with a wire tie to thechilled water pipe. See Fig. 36.
For dual chiller control a CCN bus must be connectedbetween the two modules. See the Carrier Comfort NetworkCommunication Bus Wiring section for additional information.
IMPORTANT: A shorted CCN bus cable will preventsome routines from running and may prevent the unitfrom starting. If abnormal conditions occur, disconnectthe machine from the CCN. If conditions return tonormal, check the CCN connector and cable. Run newcable if necessary. A short in one section of the buscan cause problems with all system elements on thebus.
69
Step 6 — Install Accessories — A number of acces-sories are available to provide the following optional features(for details, refer to the Controls and Troubleshooting guideshipped with the unit).ENERGY MANAGEMENT MODULE — The Energy Man-agement Module is used for any of the following types oftemperature reset, demand limit and ice features:• 4 to 20 mA inputs for cooling set point reset and capacity
limit (requires field-supplied 4 to 20 mA generator)• 0 to 10 v output for percentage total capacity running• 24 v discrete outputs for shutdown and running relays• 10k space temperature input
Discrete inputs for occupancy override, demand limitswitch 2 (step 1 demand limit is wired to the base board,
requires field-supplied dry contacts), remote lockout switchand ice done switch (requires field-supplied dry contacts).REMOTE ENHANCED DISPLAY (OR TOUCH PILOT™DISPLAY) — For applications where remote monitoring ofthe equipment is required; the remote enhanced display (orTouch Pilot display) provides an indoor display, capable ofmonitoring any equipment on the Carrier Comfort Network®(CCN) bus. A CCN bus is required.LOW AMBIENT TEMPERATURE OPERATION — If out-door ambient operating temperatures below 32 F (0° C) areexpected, refer to separate installation instructions for low-ambient operation using the low ambient temperature headpressure control accessory.MINIMUM LOAD ACCESSORY — Contact a local Carrierrepresentative for more details if a minimum load accessory isrequired for a specific application. For installation details, referto separate installation instructions supplied with the accessorypackage.UNIT SECURITY/PROTECTION ACCESSORIES — Forapplications with unique security and/or protection require-ments, several options are available for unit protection.Security grilles and hail guards are available. Contact a localCarrier representative for more details. For installation details,refer to separate installation instructions supplied with theaccessory package.COMMUNICATION ACCESSORIES — A number of com-munication options are available to meet any requirement.Contact a local Carrier representative for more details. Forinstallation details, refer to separate installation instructionssupplied with the accessory package.SERVICE OPTIONS — Two accessories are available to aidin servicing 30XA units: a ground fault convenience outlet(GFI-CO) and a remote service port.
The GFI-CO is a convenience outlet with a 4-amp GFIreceptacle.
The remote service port is housed in a weather-proof enclo-sure with a communication port to plug in the Navigator™device.
(+) (COM) (-) SHIELD
CCN
RE
D
WH
T
BLK
CCNLEN
(+) (COM) (-) SHIELD
CCN
RE
D
WH
T
BLK
CCNLEN
TO NEXTDEVICE
(+) (COM) (-) SHIELD
CCN
RE
D
WH
T
BLK
CCNLEN
SHIELD
LEGEND
Fig. 34 — TB3 — CCN Wiring
CCN — Carrier Comfort Network®LEN — Local Equipment Network
5/8 in. HEX
6" MINIMUMCLEARANCE FOR
THERMISTORREMOVAL
1.188 in.2.315 in.
1/4-18 NPT
Fig. 35 — Dual Leaving Water Thermistor Well (Part No. OOPPG000008000A)
a30-4001
a30-3999
WIRE TIE
LOOPTHERMISTOR WIRE
AND SECURETO CHILLED WATER PIPE
INSERT THERMISTOR UNTILO-RING MEETS THE
THERMISTOR WELL BODY.
Fig. 36 — Dual Leaving Water Thermistor(Part No. OOPPG000008105A)
a30-4000
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Catalog No. 04-53300008-01 Printed in U.S.A. Form 30XA-5SI Pg 70 9-06 Replaces: 30XA-1SIBook 2
Tab 5c
Copyright 2006 Carrier Corporation
Contact your local Carrier representative for more details.For installation details, refer to separate installation instructionssupplied with each accessory package.CONTROL TRANSFORMER — The control transformeraccessory eliminates the need for a separate power supply.
Step 7 — Leak Test Unit — The 30XA units areshipped with a complete operating charge of R-134a (seeTables 1A and 1B) and should be under sufficient pressure toconduct a leak test.
Perform a leak test to ensure that leaks have not developedduring unit shipment. Dehydration of the system is not requiredunless the entire refrigerant charge has been lost. There areseveral O-ring face seal fittings utilized in the oil line piping. Ifa leak is detected at any of these fittings, open the system andinspect the O-ring surface for foreign matter or damage. Do notreuse O-rings. Repair any leak found following good refrigera-tion practice.
Step 8 — Refrigerant ChargingDEHYDRATION — Refer to Carrier Standard Service Tech-niques Manual, Chapter 1, Refrigerants, Sections 6 and 7 fordetails. Do not use compressor to evacuate system.
REFRIGERANT CHARGE
The liquid charging method is recommended for completecharging or when additional charge is required.
The 30XA units are shipped from the factory with a fullcharge of R-134a. The unit should not need to be charged atinstallation unless a leak was detected in Step 6 — Leak TestUnit section. If dehydration and recharging is necessary, useindustry standard practices or refer to Carrier Standard ServiceTechniques Manual as required.
IMPORTANT: These units are designed for use withR-134a only. DO NOT USE ANY OTHER refriger-ant in these units.
DO NOT OVERTIGHTEN THESE FITTINGS. Over-tightening will result in O-ring damage.
IMPORTANT: These units are designed for use withR-134a only. DO NOT USE ANY OTHER refrigerant inthese units.
When charging, circulate water through the cooler at alltimes to prevent freezing. Freezing damage is consideredabuse and may void the Carrier warranty.
DO NOT OVERCHARGE system. Overcharging results inhigher discharge pressure with higher cooling fluid con-sumption, possible compressor damage, and higher powerconsumption.