428 14 5203 05 11/22/19 Specifications subject to change without notice. 14 SEER HEAT PUMP ENVIRONMENTALLY BALANCED R- 410A REFRIGERANT 1½ THRU 5 TONS SPLIT SYSTEM 208/230 Volt 1- phase, 208/230 Volt 3- phase, 460 Volt 3- phase; 60 Hz REFRIGERATION CIRCUIT S Scroll compressors on all models S Suction line accumulator factory installed S Bi- flow filter- drier included for field installation S Integrated solid state control with Time- Temperature Defrost S Low pressure switch S Round tube / aluminum plate fin coil EASY TO INSTALL AND SERVICE S Easy Access service valves on all models S External high and low refrigerant service ports S Only two screws to access control panel S Factory charged with R- 410A refrigerant BUILT TO LAST S Baked- on powder coat finish over galvanized steel S Post- painted (black) coil fins S Coated, weather- resistant cabinet screws S Coated inlet grille with 3/8 (10mm) grille spacing for extra protection LIMITED WARRANTY* S 5 year parts limited warranty (including compressor and coil) - With timely registration, an additional 5 year parts limited warranty (including compressor and coil) Use of the AHRI Certified TM Mark indicates a manufacturer’s participation in the program. For verification of certification for individual products, go to www.ahridirectory.org . * For residential applications only. See warranty certificate for complete details and restrictions, including warranty coverage for other applications. Model Number Size (ton) Nominal Btu/hr Min. Ckt Amps Max. Breaker Operating Dimensions length x width x height inches (mm) Operating / Ship Weight lbs. (kg) N4H418GKP 1½ 18,000 11.8 20 23- 1/8 x 23- 1/8 x 35- 1/2 (587 x 587 x 902) 136/166(61/75) N4H424GKP 2 24,000 14.2 25 25- 3/4 x 25- 3/4 x 35- 1/2 (654 x 654 x 902) 144/175(65/79) N4H430GKP 2½ 30,000 16.9 30 31- 3/16 x 31- 3/16 x 32- 1/16 (792 x 792 x 815) 158/180(72/82) N4H436G*P 3 36,000 19.5 30 31- 3/16 x 31- 3/16 x 38- 7/8 (792 x 792 x 988) 170/201(77/91) N4H436LKA 3 36,000 19.5 30 31- 3/16 x 31- 3/16 x 38- 7/8 (792 x 792 x 988) 170/202(77/91) N4H442GKP 3½ 42,000 24.0 40 31- 3/16 x 31- 3/16 x 38- 7/8 (792 x 792 x 988) 201/235(91/107) N4H442LKA 3½ 42,000 24.0 40 31- 3/16 x 31- 3/16 x 38- 7/8 (792 x 792 x 988) 190/225(86/101) N4H448G*P 4 48,000 25.2 40 31- 3/16 x 31- 3/16 x 28- 11/16 (792 x 792 x 729) 197/232(89/105) N4H460G*P 5 60,000 32.0 50 31- 3/16 x 31- 3/16 x 32- 1/16 (792 x 792 x 815) 212/248(96/113) * K = 208- 230V Single- Phase; H = 208/230V Three- Phase; L = 460V Three- Phase N4H4 Performance Series Product Specifications
14
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Performance Series Product Specifications 14 SEER HEAT ......Specifications subject to change without notice. 428 14 5203 05 11/22/19 14 SEER HEAT PUMP ENVIRONMENTALLY BALANCED R-410A
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428 14 5203 05 11/22/19Specifications subject to change without notice.
14 SEER HEAT PUMPENVIRONMENTALLY BALANCED R- 410A REFRIGERANT1½ THRU 5 TONS SPLIT SYSTEM208/230 Volt 1- phase, 208/230 Volt 3- phase,460 Volt 3- phase; 60 HzREFRIGERATION CIRCUITS Scroll compressors on all modelsS Suction line accumulator factory installedS Bi- flow filter- drier included for field installationS Integrated solid state control with Time-Temperature DefrostS Low pressure switchS Round tube / aluminum plate fin coilEASY TO INSTALL AND SERVICES Easy Access service valves on all modelsS External high and low refrigerant service portsS Only two screws to access control panelS Factory charged with R- 410A refrigerantBUILT TO LASTS Baked- on powder coat finish over galvanized steelS Post- painted (black) coil finsS Coated, weather- resistant cabinet screwsS Coated inlet grille with 3/8 (10mm) grille spacing for extraprotection
LIMITED WARRANTY*S 5 year parts limited warranty (including compressor and coil)- With timely registration, an additional 5 year partslimited warranty (including compressor and coil)
Use of the AHRI Certified TM Mark indicates amanufacturer’s participation in the program. Forverification of certification for individual products,go to www.ahridirectory.org .
* For residential applications only. See warranty certificate for complete details and restrictions, including warrantycoverage for other applications.
ModelNumber
Size(ton)
NominalBtu/hr
Min. CktAmps
Max.Breaker
Operating Dimensionslength x width x height inches (mm)
Operating / ShipWeight lbs. (kg)
N4H418GKP 1½ 18,000 11.8 20 23- 1/8 x 23- 1/8 x 35- 1/2 (587 x 587 x 902) 136/166(61/75)
N4H424GKP 2 24,000 14.2 25 25- 3/4 x 25- 3/4 x 35- 1/2 (654 x 654 x 902) 144/175(65/79)
N4H430GKP 2½ 30,000 16.9 30 31- 3/16 x 31- 3/16 x 32- 1/16 (792 x 792 x 815) 158/180(72/82)
N4H436G*P 3 36,000 19.5 30 31- 3/16 x 31- 3/16 x 38- 7/8 (792 x 792 x 988) 170/201(77/91)
N4H436LKA 3 36,000 19.5 30 31- 3/16 x 31- 3/16 x 38- 7/8 (792 x 792 x 988) 170/202(77/91)
N4H442GKP 3½ 42,000 24.0 40 31- 3/16 x 31- 3/16 x 38- 7/8 (792 x 792 x 988) 201/235(91/107)
N4H442LKA 3½ 42,000 24.0 40 31- 3/16 x 31- 3/16 x 38- 7/8 (792 x 792 x 988) 190/225(86/101)
N4H448G*P 4 48,000 25.2 40 31- 3/16 x 31- 3/16 x 28- 11/16 (792 x 792 x 729) 197/232(89/105)
N4H460G*P 5 60,000 32.0 50 31- 3/16 x 31- 3/16 x 32- 1/16 (792 x 792 x 815) 212/248(96/113)
* K = 208- 230V Single- Phase; H = 208/230V Three- Phase; L = 460V Three- Phase
N4H4Performance Series
Product Specifications
PRODUCT SPECIFICATIONS Split System Heat Pump: N4H4
2 428 14 5203 05Specifications subject to change without notice.
OUTDOOR UNIT MODEL NUMBER IDENTIFICATION GUIDE (single phase)Digit Position: 1 2 3 4 5, 6 7 8 9 10 11 12
Example Part Number: N 4 H 4 18 G K P 1 0 1C = Day & Night Mainline
* K = 208- 230V Single- Phase; H = 208/230V Three- Phase; L = 460V Three- Phase** Units are rated with 25 ft (7.6 m) of lineset length. See Vapor Line Sizing and Cooling Capacity Loss table when using other sizes and lengths of lineset.Note: See unit Installation Instruction for proper installation.
* Permissible limits of the voltage range at which the unit will operate satisfactorily** Time- Delay fuse.FLA - Full Load AmpsLRA - Locked Rotor AmpsMCA - Minimum Circuit AmpsRLA - Rated Load AmpsNOTE: Control circuit is 24- V on all units and requires external power source. Copper wire must be used from service disconnect to unit.All motors/compressors contain internal overload protection.Complies with 2007 requirements of ASHRAE Standards 90.1
A-WEIGHTED SOUND POWER
UNIT SIZESTANDARDRATING(dBA)
TYPICAL OCTAVE BAND SPECTRUM (dB, without tone adjustment)
HP ONLY REPLACEMENT WITH PISTON INDOORSWhen the N4H4 is used as a replacement component in a system with a piston fan coil, use the indoor piston size specified below:
VAPOR LINE SIZING AND COOLING CAPACITY LOSSAcceptable vapor line diameters provide adequate oil return to the compressor while avoiding excessive capacity loss. The suction linediameters shown in the chart below are acceptable for HP systems with R- 410A refrigerant:
Vapor Line Sizing and Cooling Capacity Losses - R- 410A Refrigerant 1- Stage Heat Pump Applications
Unit Nominal Size(Btuh)
Acceptable VaporLine Diameters(In. OD)
Cooling Capacity Loss (%)Total Equivalent Line Length (ft)
Standard Application Long Line Application Requires Accessories25(7.62)
Standard Length = 80 ft. (24.4 m) or less total equivalent lengthApplications in this area are long line. Accessories are required as shown recommended on Long Line Application GuidelinesApplications in this area may have height restrictions that limit allowable total equivalent length, when outdoor unit is below indoor unit See Long Line Application Guide-lines
REFRIGERANT PIPING LENGTH LIMITATIONSMaximum Line Lengths:The maximum allowable total equivalent length for heat pumps varies depending on the vertical separation. See the tables below forallowable lengths depending on whether the outdoor unit is on the same level, above or below the outdoor unit.
Maximum Line Lengths for Heat Pump Applications
MAXIMUM ACTUAL LENGTHft (m)
MAXIMUM EQUIVALENT LENGTH{ft (m)
MAXIMUM VERTICALSEPARATION ft (m)
Units on equal level 200 (61) 250 (76.2) N/AOutdoor unit ABOVE
indoor unit 200 (61) 250 (76.2) 200 (61)
Outdoor unit BELOWindoor unit See Table ’Maximum Total Equivalent Length: Outdoor Unit BELOW Indoor Unit’
{ Total equivalent length accounts for losses due to elbows or fitting. See the Long Line Guideline for details.
PRODUCT SPECIFICATIONS Split System Heat Pump: N4H4
428 14 5203 05 5Specifications subject to change without notice.
Maximum Total Equivalent Length{ - Outdoor Unit BELOW Indoor Unit
SizeLiquid LineDiameterw/ TXV
HP with R- 410A Refrigerant - Maximum Total Equivalent Length{Vertical Separation ft (m) Outdoor unit BELOW indoor unit;
* Maximum actual length not to exceed 200 ft (61 m){ Total equivalent length accounts for losses due to elbows or fitting. See the Long Line Guideline for details.- - = outside acceptable range
LONG LINE APPLICATIONSAn application is considered Long Line when the refrigerant level in the system requires the use of accessories to maintain acceptablerefrigerant management for systems reliability. Defining a system as long line depends on the liquid line diameter, actual length of thetubing, and vertical separation between the indoor and outdoor units.For Heat Pump systems, the chart below shows when an application is considered Long Line. Beyond these lengths, long lineaccessories are required:
HP WITH R- 410A REFRIGERANT LONG LINE DESCRIPTION ft (m)Beyond these lengths, long line accessories are required
Liquid Line Size Units On Same Level Outdoor Below Indoor Outdoor Above Indoor
3/8 80 (24.4) 20 (6.1) vertical or 80 (24.4) total 80 (24.4)
Note: See Long Line Guideline for details
TESTED AHRI COMBINATION RATINGS* Or scan this QR code:NOTE: Ratings contained in this document are subject to change at any time.For AHRI ratings certificates, please refer to the AHRI directory. www.ahridirectory.org
Additional ratings and system combinations can be accessed via the Day and Night database:http://www.icpeqp.com/AHRIratings/ratings.aspx?Brand=DayAndNight
* AHRI = Air Conditioning, Heating & Refrigeration Institute
* Ratings are net values reflecting the effects of circulating fan heat. Supplemental electric heat is not included. Ratings are based on:Cooling Standard: 80_F (27_C) db 67_F (19_C) wb indoor entering air temperature and 95_F (35_C) db air entering outdoor unit.High- Temp Heating Standard: 70_F (21_C) db indoor entering air temperature and 47_F (8_C) db 43_F (6_C) wb air entering outdoor unit.Low- Temp Heating Standard: 70_F (21_C) db indoor entering air temperature and 17_F (- 8_C) db 15_F (- 9_C) wb air entering outdoor unit.COP— Coefficient of PerformanceEER— Energy Efficiency RatioHSPF— Heating Seasonal Performance FactorSEER— Seasonal Energy Efficiency Ratio
PRODUCT SPECIFICATIONS Split System Heat Pump: N4H4
6 428 14 5203 05Specifications subject to change without notice.
DIMENSIONS
INC
HM
MIN
CH
MM
INC
HM
MIN
CH
MM
INC
HM
MIN
CH
MM
INC
HM
MIN
CH
MM
INC
HM
MIN
CH
MM
INC
HM
MLb
sK
gsLb
sK
gsIN
CH
MM
INC
HM
MN
4H41
8GK
P10
11
YN
NN
23
1/8
587.
335
1/
290
2.0
5/8
15.9
4 7/
1611
3.0
18
1/16
459.
07
13/1
619
7.9
1 1/
828
.23
13/1
697
.411
279.
415
3/
440
0.1
1230
4.8
136
61.7
166
75.3
25
1/4
641.
540
1015
.8
N4H
424G
KP
101
1Y
NN
N25
3/
465
4.0
35
1/2
901.
45/
815
.94
7/16
113.
021
1/
453
9.9
9 1/
823
1.3
1 1/
828
.23
13/1
697
.412
304.
813
1/
433
6.6
13
1/2
342.
914
465
.317
579
.427
7/
870
8.2
4010
15.8
N4H
430G
KP
101
1Y
NN
N31
3/
1679
2.5
32
1/16
815.
13/
419
.16
9/16
166.
124
11/
1662
6.3
9 1/
823
1.3
1 1/
828
.23
13/1
697
.415
381.
011
279.
416
406.
415
871
.718
081
.633
5/
1684
6.6
36
5/8
929.
5
N4H
436G
KP
201
2Y
NN
N31
3/
1679
2.5
28 1
1/16
728.
73/
419
.16
9/16
166.
124
11/
1662
6.3
9 1/
823
1.3
1 1/
828
.23
13/1
697
.415
3/
440
0.1
1435
5.6
10
3/4
273.
117
077
.120
191
.233
5/
1684
6.6
33
3/16
843.
1
N4H
442G
KP
101
1Y
NN
N31
3/
1679
2.5
38
7/8
987.
87/
822
.26
9/16
166.
124
11/
1662
6.3
9 1/
823
1.3
1 1/
828
.23
13/1
697
.415
1/
239
3.7
13
1/2
342.
914
355.
620
191
.223
510
6.6
33
5/16
846.
643
3/
811
02.2
N4H
448G
KP
101
1Y
NN
N31
3/
1679
2.5
28 1
1/16
728.
77/
822
.26
9/16
166.
124
11/
1662
6.3
9 1/
823
1.3
1 1/
828
.23
13/1
697
.416
1/
241
9.1
11
1/2
292.
115
381.
019
789
.423
210
5.2
33
5/16
846.
633
3/
1684
3.1
N4H
460G
KP
101
1Y
NN
N31
3/
1679
2.5
32
1/16
815.
17/
822
.26
9/16
166.
124
11/
1662
6.3
9 1/
823
1.3
1 1/
828
.23
13/1
697
.414
3/
437
4.7
15
3/4
400.
116
1/
441
2.8
212
96.2
248
112.
533
5/
1684
6.6
36
5/8
929.
5
N4H
436G
HP
201
2N
YN
N31
3/
1679
2.5
28 1
1/16
728.
73/
419
.16
9/16
166.
124
11/
1662
6.3
9 1/
823
1.3
1 1/
828
.23
13/1
697
.415
3/
440
0.1
1435
5.6
10
3/4
273.
117
077
.120
191
.233
5/
1684
6.6
33
3/16
843.
1
N4H
436G
LP20
12
NN
YN
31
3/16
792.
528
11/
1672
8.7
3/4
19.1
6 9/
1616
6.1
24 1
1/16
626.
39
1/8
231.
31
1/8
28.2
3 13
/16
97.4
15
3/4
400.
114
355.
610
3/
427
3.1
170
77.1
201
91.2
33
5/16
846.
633
3/
1684
3.1
N4H
448G
HP
101
1N
YN
N31
3/
1679
2.5
28 1
1/16
728.
77/
822
.26
9/16
166.
124
11/
1662
6.3
9 1/
823
1.3
1 1/
828
.23
13/1
697
.416
1/
241
9.1
11
1/2
292.
115
381.
019
789
.423
210
5.2
33
5/16
846.
633
3/
1684
3.1
N4H
448G
LP10
11
NN
YN
31
3/16
792.
528
11/
1672
8.7
7/8
22.2
6 9/
1616
6.1
24 1
1/16
626.
39
1/8
231.
31
1/8
28.2
3 13
/16
97.4
16
1/2
419.
111
1/
229
2.1
1538
1.0
197
89.4
232
105.
233
5/
1684
6.6
33
3/16
843.
1
N4H
460G
HP
101
1N
YN
N31
3/
1679
2.5
32
1/16
815.
17/
822
.26
9/16
166.
124
11/
1662
6.3
9 1/
823
1.3
1 1/
828
.23
13/1
697
.414
3/
437
4.7
15
3/4
400.
116
1/
441
2.8
212
96.2
248
112.
533
5/
1684
6.6
36
5/8
929.
5
N4H
460G
LP10
11
NN
YN
31
3/16
792.
532
1/
1681
5.1
7/8
22.2
6 9/
1616
6.1
24 1
1/16
626.
39
1/8
231.
31
1/8
28.2
3 13
/16
97.4
14
3/4
374.
715
3/
440
0.1
16
1/4
412.
821
296
.224
811
2.5
33
5/16
846.
636
5/
892
9.5
N4H
436L
KA
101
1Y
NN
N31
3/
1679
2.5
28 1
1/16
728.
73/
419
.16
9/16
166.
124
11/
1662
6.3
9 1/
823
1.3
1 1/
828
.23
13/1
697
.415
3/
440
0.1
14
1/4
362.
012
1/
231
7.5
170
76.9
202
91.4
33
5/16
846.
633
3/
1684
3.1
N4H
442L
KA
101
1Y
NN
N31
3/
1679
2.5
38
7/8
987.
87/
822
.26
9/16
166.
124
11/
1662
6.3
9 1/
823
1.3
1 1/
828
.23
13/1
697
.414
5/
837
1.5
16
1/8
409.
617
431.
819
086
.022
510
1.8
33
5/16
846.
643
3/
811
02.2
GH
IJ
KU
NIT
SER
IES
ELEC
TRIC
ALCH
ARAC
TERI
STIC
SA
BO
PER
ATIN
GW
EIG
HT
SHIP
PIN
GW
EIG
HT
SHIP
PIN
GLE
NG
TH /
WID
TH (S
q.)
U.S
. EC
CN
: N
ot S
ubje
ct to
Reg
ulat
ion
(N.S
.R.)
208-230-1-60
208/230-3-60
460-3-60
575-3-60
Y=YE
SN
=NO
NO
TE: A
LL D
IMEN
SIO
NS
IN IN
CH
(MM
)
C
Cop
y of
Cop
y of
SD
5302
-4 R
EV.
SHIP
PIN
GH
EIG
HT
DE
F
NOTE
S: 1.
CEN
TER
OF
GRA
VIT
Y
.
UN
IT S
IZE
1823
1/
858
7.3
17
7/8
454.
624
25
3/4
654.
020
7/
1651
8.5
30,3
6,42
,48,
6031
3/
1679
2.5
22 1
5/16
583.
2-
3588
9.0
26
3/4
679.
7
"Y"
MIN
IMU
M R
OO
F-TO
P M
OU
NTI
NG
PAD
APP
LIC
ATI
ON
DIM
ENS
ION
S
"X"
MIN
IMU
M G
RO
UN
D M
OU
NTI
NG
PAD
APP
LIC
ATI
ON
DIM
ENS
ION
S
PRODUCT SPECIFICATIONS Split System Heat Pump: N4H4
7 428 14 5203 05Specifications subject to change without notice.
PRODUCT SPECIFICATIONS Split System Heat Pump: N4H4
428 14 5203 05 13Specifications subject to change without notice.
Accessory Description and Usage (Listed Alphabetically)1. Ball- Bearing Fan MotorA fan motor with ball bearings which permits speed reductionwhile maintaining bearing lubrication.2. Compressor Start Assist - Capacitor and RelayStart capacitor and relay gives a hard boost to compressor motorat each start up.
Usage Guideline:Required for reciprocating compressors in the followingapplications:
Long lineLow ambient coolingHard shut off expansion valve on indoor coilLiquid line solenoid on indoor coil
Required for single- phase scroll compressors in thefollowing applications:
Long lineLow ambient cooling
Suggested for all single- phase compressors in areaswith a history oflow voltage problems.3. Compressor Start Assist — PTC TypeSolid state electrical device which gives a soft boost to thecompressor at each start- up.
Usage Guideline:Suggested in installations for single- phase units with
marginal power supply.4. Crankcase HeaterAn electric resistance heater which mounts to the base of thecompressor to keep the lubricant warm during off cycles.Improves compressor lubrication on restart and minimizes thechance of liquid slugging.
Usage Guideline:Required in low ambient cooling applications.Required in long line applications.Suggested in all commercial applications.
5. Evaporator Freeze ThermostatAn SPST temperature- actuated switch that stops unit operationwhen evaporator reaches freeze- up conditions.
Usage Guideline:Required when low ambient kit has been added.
6. Isolation RelayAn SPDT relay which switches the low- ambient controller out ofthe outdoor fan motor circuit when the heat pump switches toheating mode.
Usage Guideline:Required in all heat pumps where low ambient kit hasbeen added.
7. Liquid- Line Solenoid Valve (LLS)An electrically operated shutoff valve which stops and startsrefrigerant liquid flow in response to compressor operation. It isto be installed at the outdoor unit to control refrigerant off cyclemigration in the heating mode.
Usage Guideline:An LLS is required in all long line heat pumpapplications to control refrigerant off cycle migration inthe heating mode. See Long Line Guideline.
8. Low-Ambient Pressure Switch KitA long life pressure switch which is mounted to outdoor unitservice valve. It is designed to cycle the outdoor fan motor inorder to maintain head pressure within normal operating limits.The control will maintain working head pressure at low- ambienttemperatures down to 0_F (- 17.8_C) when properly installed.
Usage Guideline:A Low- Ambient Pressure SwitchLow- Ambient Controller must be used when coolingoperation is used at outdoor temperatures below 55_F(12.8_C).
9. Sound JacketWraparound sound reducing cover for the compressor. Reducesthe sound level by about 2 dBA.
Usage Guideline:Suggested when unit is installed closer than 15 ft.(4.577 m) to quiet areas, bedrooms, etc.Suggested when unit is installed between two housesless than 10 ft. (3.05 m) apart.
10. Thermostatic Expansion Valve (TXV) Bi- FlowA modulating flow- control valve which meters refrigerant liquidflow rate into the evaporator in response to the superheat of therefrigerant gas leaving the evaporator.
Usage Guideline:Accessory required to meet AHRI rating and systemreliability, where indoor not equipped.Required in all heat pump applications designed withR- 410A refrigerant.
11. Time- Delay RelayAn SPST delay relay which briefly continues operation of indoorblower motor to provide additional cooling after the compressorcycles off.Note: Most indoor unit controls include this feature. For thosethat do not, use the guideline below.
Usage Guideline:Accessory required to meet AHRI rating, where indoornot equipped.
PRODUCT SPECIFICATIONS Split System Heat Pump: N4H4
14 428 14 5203 05Specifications subject to change without notice.
ACCESSORY USAGE GUIDELINE
ACCESSORY
REQUIRED FOR LOW-AMBIENT
COOLING APPLICATIONS(Below 55F / 12.8C)
REQUIRED FORLONG LINE APPLICATIONS*
REQUIRED FORSEA COAST
APPLICATIONS(Within 2 miles/3.22 km)
Accumulator Standard Standard StandardCompressor Start AssistCapacitor and Relay
Yes** Yes** No**
Crankcase Heater Yes Yes No Evaporator Freeze Thermostat Yes No No
Hard Shutoff TXV Yes Yes NoIsolation Relay Yes No No
Liquid Line Solenoid Valve NoSee Long- Line Application
Guideline No
Low Ambient Switch Yes No NoSupport Feet Recommended No Recommended
* For tubing line sets between 80 and 200 ft. (24.38 and 60.96 m) and/or 20 ft. (6.09 m) vertical differential, refer to Residential Split- System Longline ApplicationGuideline.
** Not required for Three- Phase units Standard for Three- Phase units only