36cb-1si

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Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Catalog No. 04-53360001-01 Printed in U.S.A. Form 36CB-1SI Pg 1 12-08 Replaces: New

Installation Instructions

CONTENTS PageSAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Storage and Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Initial Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Installation Precaution . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1PREINSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9Prepare Jobsite for Unit Installation . . . . . . . . . . . . . . 1INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-17Freely Suspended . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Recessed in a False Ceiling . . . . . . . . . . . . . . . . . . . . . . 9Connection to Piping System. . . . . . . . . . . . . . . . . . . . 10Connection to Supply Air Duct . . . . . . . . . . . . . . . . . . 10

Connection of Chilled Beams in a Series . . . . . . . . 10 36CBAE UNIT INSTALLATION 36CBAF UNIT INSTALLATION 36CBAN UNIT INSTALLATION 36CBPB,PD,PS UNIT INSTALLATIONADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-32Adjusting Airflow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Comfort Control Function . . . . . . . . . . . . . . . . . . . . . . . 18 TO ADJUST BEAM HOLE LENGTHFPC Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 COOLING CAPACITY TO ADJUST THE FPC FUNCTIONMAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-36Active Chilled Beams. . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 CLEANING THE 36CBAC,AE UNIT

CLEANING THE 36CBAF UNIT CLEANING THE 36CBAN UNITPassive Chilled Beams . . . . . . . . . . . . . . . . . . . . . . . . . . 36 CLEANING THE 36CBPB,PD,PS UNIT

SAFETY CONSIDERATIONS

GENERAL

Chilled beam systems are suitable for use in high coolingload applications or where individual temperature control isrequired.

Active (supply air) chilled beams operate with induction,where incoming primary air induces room air through the beamcoil. The primary and induced room airflow is then discharged

through the outlet slot of the beam into the room, resulting in atotal airflow of 3 to 4 times greater than the primary airflow.

Passive beams work using a reverse chimney effect, wherecooler air inside the beam has a higher density than the sur-rounding room air. The difference in density in combinationwith the height of the beam induces room air down through thebeam coil.

Systems with chilled beams are suitable for use in highcooling load applications and/or where there is a requirementfor individual temperature control. In offices with normal roomheights, the maximum cooling capacity is 25 to 29 Btuh pesq ft of floor area. The limit is set by the maximum permissiblevelocity in the occupied zone, therefore high room heights canprovide the opportunity for supplying a greater cooling effect.

Cooling load calculations must take in account the build-

ing's dynamic and thermal storage capacity. Simply adding the"gross loads" together gives an estimate of cooling load whichcan be approximately 50% too large.

The primary airflow is responsible for the air quality in theroom while also providing basic cooling. The maximum recommended difference for the primary air is 18 F. In certaincases, the supply air temperature can be increased by a few de-grees with a falling outdoor temperature. The chilled beamcovers the rest of the cooling load. The water flow is varied according to the load using a room sensor.

Compared with a system where the cooling duty is suppliedentirely by air, a chilled beam system reduces the space re-quired for air handling plant and ducting.

Storage and Handling Inspect for damage upon re-

ceipt. Shipping damage claims should be filed with shipper atime of delivery. Store in a clean, dry, and covered location. Donot stack cartons. When unpacking units, care should be takenthat the inlet collars and water connections do not becomedamaged. Do not remove protective film from painted surfaceuntil installed.

Initial Inspection Once items have been removedfrom the carton, check carefully for damage to duct connections, coils, or controls. File damage claim immediately withtransportation agency and notify Carrier.

Installation Precaution Check that construction debris does not enter unit or ductwork. Accumulated dust andconstruction debris distributed through the ductwork can adversely affect unit operation.

Codes Install units in compliance with all applicablecode requirements.

PREINSTALLATION

Prepare Jobsite for Unit Installation To savetime and to reduce the possibility of costly errors, set up a complete sample installation in a typical room at jobsite. Check alcritical dimensions such as pipe, wire, and duct connection requirements. Refer to job drawings and product dimension

SAFETY NOTE

Air-handling equipment will provide safe and reliableservice when operated within design specifications. Theequipment should be operated and serviced only by autho-rized personnel who have a thorough knowledge of sys-tem operation, safety devices and emergency procedures.

Good judgement should be used in applying any

manufacturers instructions to avoid injury to personnelor damage to equipment and property.

36CBAC,AE,AF,AN Active Chilled Beams36CBPB,PD,PS Passive Chilled Beams

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drawings as required (see Fig. 1-10 ). Instruct all trades in theirpart of the installation.

Refer to Tables 1-7 and Fig. 1-10 for unit data.

Table 1 36CBAC Unit Physical Data

Table 2 36CBAE Unit Physical Data

Table 3 36CBAC,AE Unit EnclosurePhysical Data

Table 4 36CBAF Unit Physical Data

Table 5 36CBAN Unit Physical Data

Table 6 36CBPB,PS Unit Physical Data

Table 7 36CBPD Unit Physical Data

36CBAC UNIT SIZE 06 08 10

Beam Length (ft) 6 8 10

Coil Length (ft) 5 7 9

Coil Connection Size (in.) 1 1 1

Weight (lb) 57 77 101

36CBAE UNIT SIZE 04 06 08 10

Beam Length (ft) 4 6 8 10

Coil Length (ft) 3 5 7 9

Coil Connection Size (in.) 1 1 1 1

Weight (lb) 44 62 81 101

36CBAC,AE UNIT ENCLOSURE PHYSICAL DATA

36CBAC Unit EnclosureLength (in.) 12 to 20 20 to 35 35 to 67

Weight (lb) 7 11 21

36CBAE Unit Enclosure

Sealed End Wall Enclosure

Length (in.) 12 20 35

Weight (lb) 3 6 9

No End Wall Enclosure

Length (in.) 12 to 20 20 to 35 35 to 67

Weight (lb) 8 12 22

36CBAF UNIT SIZE 04 06 08 10 12Beam Length (ft) 4 6 8 10 12

Coil Length (ft) 3 5 7 9 11

Coil Connection Size (in.) 1 1 1 1 1

Weight (lb) 44 59 79 101 121

36CBAN UNIT SIZE 04 06 08 10

Beam Length (ft) 4 6 8 10

Coil Length (ft) 3 5 7 9

Coil Connection Size (in.) 1 1 1 1

Weight (lb) 31 46 62 77

36CBPB,PS UNIT SIZE 04 06 08 10 12 14Beam Length (ft) 4 6 8 10 12 14

Beam Width (in.)(36CBPB/36CBPS)

16.9/11.4

Beam Height (in.) 5.6

Coil Length (ft) 3.7 5.7 7.7 9.7 11.7 13.7

Coil Connection Size (in.) 1 1 1 1 1 1

Flexible Water Pipes (in.) 8 8 8 8 8 8

Weight (lb/ft)(36CBPB/36CBPS)

5.4/4.7

36CBPB,PS UNIT SIZE 06 08

Beam Length (ft) 6 8Beam Width (in.) 15.7


Coil Length (ft) 5.7 7.7

Coil Connection Size (in.) 1 1

Flexible Water Pipes (in.) 8 8

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min 4 x D

0.6 (H2O)

MOUNTING BRACKET

LEFT SIDE, EXTENDED CASING 4 IN. DUCT CONNECTION1 HOLE ROW

36CBAC 4 5

72 / 96 / 12012

4-IN.A

A

72 / 96 / 12024

5-IN.A

A

72 / 96 / 120 12

4-IN. A

A

72 / 96 / 120 24

5-IN. A

A

7.

54.

6

3.

1

15.2

5.6 0.6

96.1101.1 0.6

AA

L/4 L/4L/2

LEFT SIDE, EXTENDED CASING 5 IN. DUCT CONNECTION1 OR 2 HOLE ROWS

RIGHT SIDE CONNECTION,EXTENDED CASING 5 IN. DUCT CONNECTION1 OR 2 HOLE ROWS

RIGHT SIDE CONNECTION,EXTENDED CASING 4 IN. DUCT CONNECTION

1 HOLE ROW

Fig. 1 36CBAC Base Unit Dimensions

NOTE: Dimensions shown in inches.

36CBACUNIT SIZE

WEIGHT(lb)

06 57

08 77

10 101

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Fig. 2 36CBAE Base Unit Dimensions

a36-511.eps

18

2

4 ALT 5

1.8

MIN 0.5

MOUNTING

BRACKET

CONN. 1

(OUTER)

7

9

7

10

35

35

CW = COOLING WATER (COOLING MODE)

HW = HEATING WATER (HEATING MODE)

L

L/2L/4 L/4

L = NOMINAL LENGTH + 1.2 IN.

HWCW CWHW

CW CW

WATER VOLUME COOLING = 0.13 GPM COILWATER VOLUME HEATING = 0.07 GPM COIL

NOTE: Dimensions shown in inches, unless otherwise indicated.

36CBAE UNITSIZE

LENGTH (ft) WEIGHT (lb)

04 4 44

06 6 62

08 8 81

10 10 101

Fig. 3 36CBAC,AE Accessory Unit Dimensions

36CBAC UNIT ENCLOSURE, NOEND WALL

LENGTH (in.) WEIGHT (lb)

36CBX-TZ-09-20 12 to 20 7

36CBX-TZ-09-36 20 to 35 11

36CBX-TZ-09-68 35 to 67 21

36CBAE UNIT ENCLOSURE, NOEND WALL


36CBX-AZ-09-20 12 to 20 8

36CBX-AZ-09-36 20 to 35 12

36CBX-AZ-09-68 35 to 67 22

36CBAE UNIT ENCLOSURE,SEALED END WALL


36CBX-AZ-10-12 12 3

36CBX-AZ-10-24 20 6

36CBX-AZ-10-36 35 9

36CBAC UNIT ENCLOSURE

NO END WALL

a36-460.eps

END PLATE

36CBX-AZ-12

36CBAE UNIT ENCLOSURENO END WALL

36CBAE UNIT ENCLOSURESEALED END WALL

12, 20, 3514

6

6

14

12-2020-3535-67

a36-461,2,3.eps

NOTE: Dimensions shown in inches.

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Fig. 4 36CBAE Unit Dimensions Lighting Option

A

A

BEAM LENGTH

AA

a36-464.eps

LEGEND

*One fitting in each wing.NOTES:

1. The fitting has a T5 fluorescent lamp which is available in two power levels, HE

and HO, depending on how much light is required. The HE version has an out-put of 28 W for a 4 ft fitting and 35 W for a 5 ft fitting. The HO version has anoutput of 54 W for a 4 ft fitting and 49 W for a 5 ft fitting.

2. The color temperature of the fluorescent lamp is 830/3000 K.3. The connection cable can be supplied with a plug, Ensto or Wieland connector.

36CBAEUNIT SIZE

ARMATURELENGTH (ft)

NUMBER OFFITTINGS

OUTPUT (W)HE/HO

06 4 2* 28/54

08 5 2* 35/49

10 5 2* 35/49

HE High EfficiencyHO High Output

Fig. 5 36CBAF Unit Dimensions

8

54

18

17

9

8.4

CW 0.5

WW 0.5

23.5

C D

L

E8

5

LEGEND

NOTES:1. Dimensions shown in inches unless otherwise indicated.2. Water volume cooling = 0.13 gpm.3. Water volume heating = 0.07 gpm.

36CBAF UNITSIZE

L (ft) C (ft) D (ft) E (ft) WEIGHT(lb)

04 4 1 2 44

06 6 1 3 59

08 8 2 4 79

10 10 2 5 101

12 12 3 7 3 121

CW Chilled WaterWW Warm Water

36CBAF UNIT SIZE,EXTENDED CASING

L (ft) C (ft) D (ft)

06 8 3 3

08 10 4 4

10 12 4 5

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Fig. 6 36CBAF Unit Dimensions Lighting Option

36CBAF06

36CBAF08

36CBAF10

36CBAF12

a36-470.eps

LEGEND

NOTES:1. The fitting has a T5 fluorescent lamp which is available in two power levels, HE and

HO, depending on how much light is required. The HE version has an output of 28 W

for a 4 ft fitting and 35 W for a 5 ft fitting. The HO version has an output of 54 W for a4 ft fitting and 49 W for a 5 ft fitting.2. The color temperature of the fluorescent lamp is 830/3000 K.3. The connection cable can be supplied with a plug, Ensto or Wieland connector.

36CBAFUNIT SIZE

ARMATURELENGTH (ft)

NUMBER OFFITTINGS

OUTPUT (W)HE/HO

06 4 1 28/54

08 5 1 35/49

10 4 2 35/49

12 4 2 28/54


Fig. 7 36CBAF Unit Dimensions Sprinkler Option

2.1 in.

2.4 in.

B

A

A/2

B

2.4 in.

2.1 in.

SECTION B B

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36CBAF UNITSIZE

A (ft)

06 6

08 8

10 10

12 12

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Fig. 8 36CBAN Unit Dimensions

NOTES:1. Dimensions shown in inches.2. Water volume cooling = 0.13 gpm coil.3. Water volume heating = 0.07 gpm coil.

36CBANUNIT SIZE

LENGTH (ft)WEIGHT

(lb)

04 4 31

06 6 46

08 8 62

10 10 77

8.78

4.39

5.31

8.27

1.50

3.90

2.95

11.75

7.28

1.40

1.10

0.59

5.31

2.13

1.30

4.17 3.94

5.47

8.27

L

4.92

0.59

9.76

3.90 4.39

CONNECTION ALTERNATIVE 1 AIR AND WATER CONNECTIONS RIGHT IN THE DIRECTION OF AIRFLOW

CONNECTION ALTERNATIVE 2 AIR AND WATER CONNECTIONS THROUGH END WALL

CONNECTION ALTERNATIVE 3 AIR CONNECTION UP AND WATER CONNECTION RIGHT IN THE

DIRECTION OF AIRFLOW

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Fig. 9 36CBPB,PD,PS Unit Dimensions

36CBPB,PS UNIT SIZE 04 06 08 10 12 14

Beam Length (ft) 4 6 8 10 12 14

Beam Width (in.) (36CBPB/36CBPS) 16.9/11.4


Coil Length (ft) 3.7 5.7 7.7 9.7 11.7 13.7

Coil Connection Size (in.) 1Flexible Water Pipes (in.) 8

Weight (lb/ft) (36CBPB/36CBPS) 5.4/4.7

36CBPD UNIT SIZE 06 08

Beam Length (ft) 6 8

Beam Width (in.) 15.7



Coil Connection Size (in.) 1

Flexible Water Pipes (in.) 8

CONNECTION 1

4.5L

8.5

GABLE, SERIES CONNECTION

1.62.8

3.9

17

13.8

5.6 3.9

4.5L

8.5

1.62.8

3.9

11.4

8.3

5.6 3.9

CONNECTION 1


8.3 1

15.7

7.1

L

36CBPB

36CBPS

36CBPD

NOTES:1. Dimensions shown in inches.2. L = Nominal length minus 0.31 inches.

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INSTALLATION

Freely Suspended All units may be freely suspend-ed with the use of hangers. See Fig. 11.

Where the appearance of the installation is subject to strictrequirements, it is better to select a beam with an extended cas-ing on the connection end or cladding for the ducts and pipeswhich covers the distance from the beam to the wall.

Where none of these alternatives is used, it is inappropriateto have flexible air side duct connections. Also, any damper orsound attenuator should be positioned in the false ceiling of thecorridor.

To improve appearance, any exposed field-installed flexiblefoam insulation on the piping connected to the unit should bepainted. Also, the valve set should be positioned in the falseceiling of the corridor, if possible.

Recessed in a False Ceiling The 36CBAF and36CBAN beams can be installed recessed in a false ceiling

with hangers (see Fig. 12) or they can be installed directly onthe load-carrying structure of the false ceiling (see Fig. 13).

When installing the beams with hangers, the installationprocedure is as follows (see Fig. 12):

1. Suspend the beams and roughly adjust their position.

2. Install the load-carrying structure for the false ceiling.

3. Adapt the beams as required to the load-carrying

structure.

This method generally means that two operations are needed to fix the beams in place. It is important for the beam and installation fittings to permit adjustment of the position of the

Fig. 10 36CBPD Unit Dimensions Lighting Option

4

4

4

LEGEND

NOTES:1. Dimensions shown in feet.2. The fitting has a T5 fluorescent lamp which is available in two power levels, HE and HO, depending on how much light is required.

The HE version has an output of 28 W while the HO version has an output of 54 W.3. The color temperature of the fluorescent lamp is 830/3000 K.4. The connection cable can be supplied with a plug, Ensto or Wieland connector.

36CBPD UNITSIZE

FITTINGLENGTH (ft)

NUMBER OFFITTINGS

OUTPUT (W)HE/HO

04-08 4 1 28/54

10-14 4 2 28/54


a36-479.eps

UNIT SIZES 04-08

UNIT SIZES 10-14

Fig. 11 Freely Suspended Chilled Beam

a36-487.eps Fig. 12 Beam Installed with Hangers

a36-488

Fig. 13 Beam Installed Directly in False Ceiling

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beam in every direction. The beams can be laid on the load-carrying structure of the false ceiling. The suspension rods ofthe load-carrying structure are dimensioned so that they arealso able to support the chilled beams, which very often meansthat some extra suspension rods will be required.

When installing the beams directly on the load-carryingstructure, the installation procedure is as follows (see Fig. 13):

1. Install the load-carrying structure.

2. Position the chilled beams.

3. Secure the beam with screws through the T-profiles of the

load-carrying structure.This method generally means that a single operation will be

sufficient to fix the beams in place.

Connection to Piping System Regardless of theway in which the beams are installed, it is easier if they areconnected using flexible pipes. In suspended ceilinginstallations, readjustment will often be required. In both cases,the flexible pipe means that installation of the pipework can beundertaken in a single operation, which is independent of thebeam installation. The flexible pipe should be cut to the re-quired length in order to avoid unnecessary and transversebends.

Connection to Supply Air Duct As with the pipeconnections, assembly is simplified if the beams are connected

to the ducting with flexible ducts. The flexible duct must befully extended, and transverse bends must be avoided to ensurethat unpredicted pressure drops and noise sources do not occur.

Connection of Chilled Beams in a Series Beams in the same room are normally connected in parallel onboth the air and water sides. It is also possible, however, for 2beams to be connected in a series.

In this case, the first beam in the direction of the airflowmust be a special unit. The air needs to exit through the far end(when viewed in the direction of the airflow) and into the nextbeam.

Similarly, the coil in the first beam is adapted to allow thewater to continue into the next beam. The beam descriptionmust clearly indicate that the 2 beams are to be connected in a

series. No more than 2 beams may be connected in a series dueto the water side pressure drop.

36CBAE UNIT INSTALLATION Choose one of the fol-lowing options to install the 36CBAE unit (see Fig. 14):

Option 1

1. Screw 2 mounting brackets directly into the ceiling.

2. Attach the chilled beam to the mounting brackets by in-serting the bracket hooks into the slots on top of thechilled beam unit.

Option 2

1. Attach a suspension rod on each end of the 2 mountingbrackets.

2. Install the suspension rods directly into the ceiling.


Option 31. Screw 2 suspension brackets directly into the ceiling.

2. Attach a suspension rod on each end of the 2 mountingbrackets.

3. Screw the suspension rods onto the suspension brackets.


Once the 36CBAE unit has been mounted on the ceiling,complete the following steps to install the unit enclosure. (SeeFig. 15.)

Enclosure without End Walls (36CB-AZ-09-20,36,68) To connect the 36CBAE unit having an enclosure without end

walls, follow the steps below and in Fig. 15.1. Remove the end plate from the unit.

2. Attach end bracket to far side of enclosure to unit.

3. Attach end plate (36CBX-AZ-12) to the other end brack-et of enclosure.

4. Make flexible piping connections.

5. Position side frames of enclosure.

6. Secure side frames with a screw at each end.

7. Snap first enclosure panel into place.

8. Snap second enclosure panel into place.

9. Adjust enclosure panels as necessary.

Enclosure with Sealed End Walls (36CB-AZ-10-12,24,36) To connect the 36CBAE unit having an enclosure with sealedend walls, follow the steps below and in Fig. 15.

1. Remove end plate from unit.

2. Install hanging bracket.

3. Make flexible duct and water connections.

4. Snap enclosure panel onto end of unit.

5. Move enclosure panel to end of unit.

6. Attach end plate onto unit.

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Fig. 14 Mounting 36CBAE Unit

NOTE: L = nominal length.

A36-490

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Fig. 15 36CBAE Unit Connections

A36-491

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36CBAF UNIT INSTALLATION Choose one of the fol-lowing options to install the 36CBAF unit. See Fig. 16.

Option 1

1. Screw mounting brackets directly into ceiling.

2. Hook unit onto mounting bracket.

Option 2

1. Screw suspension bracket directly into ceiling.

2. Install suspension rods onto suspension bracket.

3. Attach mounting bracket to suspension rods.

4. Hook unit onto mounting bracket.Option 3

1. Install the suspension rods directly into the ceiling.



Option 4


2. Install suspension rods onto suspension bracket.

3. Attach unit to suspension rods.

Option 5

1. Screw suspension rods directly into ceiling.

2. Attach unit to suspension rods.

Once unit has been installed onto ceiling (see Fig. 17):

1. Remove protective film from unit.

2. Open bottom plate of unit by sliding unit tab to the side.

3. Remove packing blocks from unit and close bottom plate

4. Remove end cap from unit.

5. Install water or air connections as applicable.

Option 1 Install straight duct.

Option 2 Install elbow duct.

Option 3 For a unit with an elbow duct covering the waterconnection, first install water connections, taking care to prevent leaks. The air duct may then be installed after water con-nections have been made.

Fig. 16 Mounting 36CBAF Unit

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36CBAN UNIT INSTALLATION Choose one of the fol-lowing options to install the 36CBAN unit. See Fig. 18.

Option 1

1. Screw mounting bracket directly into ceiling.


Option 2


2. Attach suspension rods to suspension bracket.



5. Secure unit with screws.

Option 3

1. Screw suspension rods directly into ceiling.


3. Hook unit onto bracket.

4. Secure unit with screws.

Once unit has been installed in ceiling, install water connec-tions per Fig. 19.

Fig. 17 36CBAF Unit Connections

A36-493

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Fig. 18 Mounting 36CBAN Unit

NOTE: L = nominal length.

A36-494

Fig. 19 36CBAN Unit ConnectionsA36-495

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36CBPB,PD,PS UNIT INSTALLATION Choose one ofthe following options to install the 36CBPB,PD,PS unit. SeeFig. 20.

Option 1

1. Screw mounting bracket directly into ceiling.

2. Hook the unit onto mounting bracket, one side at a time.

Option 2

1. Screw the suspension rods directly into the ceiling.

2. Attach the mounting bracket to suspension rods.

3. Hook the unit onto mounting bracket, one side at a time.

Option 3

1. Screw the suspension bracket directly into the ceiling.

2. Attach the suspension rods to the suspension bracket.

3. Attach the mounting bracket to the suspension rods.

4. Hook the unit onto the mounting bracket, one side at atime.

Once unit has been installed onto ceiling, install water con-nections per Fig. 21.

Fig. 20 Mounting 36CBPB,PD,PS Unit

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Fig. 21 36CBPB,PD,PS Connections

L = 6 or 8 ft

CONNECTION 1

4.5L

8.5


1.62.8

3.9

17

13.8

5.6 3.9

4.5L

8.5

1.62.8

3.9

11.4

8.3

5.6 3.9

CONNECTION 1


8.3 1

15.7

7.1

L

36CBPB

36CBPS

36CBPD

NOTES:1. Dimensions shown in inches.2. L = Nominal length minus 0.31 inches.

a36-478.eps

36CBPB,PS UNIT SIZE 04 06 08 10 12 14

Beam Length (ft) 4 6 8 10 12 14

Beam Width (in.) (36CBPB/36CBPS) 16.9/11.4


Coil Length (ft) 3.7 5.7 7.7 9.7 11.7 13.7

Coil Connection Size (in.) 1Flexible Water Pipes (in.) 8

Weight (lb/ft) (36CBPB/36CBPS) 5.4/4.7

36CBPD UNIT SIZE 06 08

Beam Length (ft) 6 8

Beam Width (in.) 15.7



Coil Connection Size (in.) 1

Flexible Water Pipes (in.) 8

L = max 14 ft

1

L/2

L

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ADJUSTMENT

Adjusting Airflow The airflow pattern of activechilled beams can be adjusted using the comfort control func-tion and/or the flow pattern control (FPC) function.

Comfort Control Function The comfort controlfunction is featured on all active chilled beams (optional on36CBAF units). Control rails are used to adjust airflow byvarying the hole lengths in the primary air channel. Moderatechanges in the pressure or flow can be made without signifi-cantly affecting the cooling capacity as the beam has an inte-

gral damper function.Beams have independently adjustable hole lengths on each

side, permitting different air distribution patterns (2-way blow,one-way blow, and intermediate positions). Units are suppliedwith the hole lengths preset to the longest possible position as astarting point for future balancing. See Fig. 22.

Flow patterns other than 2-way are obtained by adjustingthe length of the holes on the left and right sides; see Fig. 23.The sum value of the hole length on the left and right sidesgives the same airflow for a given pressure drop across thebeam regardless of the airflow pattern. A label is located on theinside of the chilled beams for recording the adjusted holelengths after adjustment; see Fig. 24.

Beam capacity can be found using Tables 8-24. Beams with

2-way blow air distribution use the full capacity of the coil, butthis is not the case in one-way blow distribution or intermediatepositions. The capacity reduction factor can be obtained fromTables 16, 20, and 23. For a particular beam and supply air-flow, the value given in Tables 12-24, is multiplied by the ca-pacity factor.

Fig. 22 Airflow Pattern Adjustment

80%20%

80 %20%50%50%

80%20%20%80%

10 cfm/ft

40 cfm/fta36-454.eps

Fig. 23 Hole Adjustment

A36-456.eps

Fig. 24 Unit Adjustment Label(36CBAN Label Shown)

L=1,2

L=1,75

L=1,8

L=2,4

L=3,0

11+11

5+5

5+5

2+2

18+18

9+9

9+9

5+5

3+3

14+14

14+14

9+9

6+6

18+18 L1+L2 ( P=60 Pa )

18+18

12+12

8+8

15+15

11+11

18+18

13+13 16+16 18+18

3+3

L (m) 5 10 15 20 25 30 35 40 45 q(l/s )

L1 mm L2 mm

18

16

14

12

10864

200

2468

10

12

14

161

8

L1 L2

a36-498

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Table 8 36CBAC Unit Flow Pattern 2-Way Blow

Table 9 36CBAE Unit Flow Pattern 2-Way Blow

NOTE: Total airflow is determined by the hole opening on each sideof the beam. For example, 7 + 3 indicates that the hole openings on

the left side of the beam are opened to the position 7 and the holeson the right are opened to position 3.

36CBAC UNIT SIZEPRIMARY AIRFLOW (cfm)

STANDARD/HIGHHOLE POSITION

ONE-WAY

06

21/42 7.0

32/64 11.0

42/85 14.5

53/106 18.0

08

21/42 5.0

32/64 7.5

42/85 10.0

53/106 13.064/127 15.5

74/148 18.0

10

32/64 6.0

42/85 8.0

53/106 10.0

64/127 12.0

74/148 14.0

85/169 16.0

95/191 18.0

36CBAEUNIT SIZE PRIMARY AIRFLOW (cfm)STANDARD/HIGH HOLE POSITION2-Way 70% - 30% One-Way

04

11/0 5 + 5 7 + 3 8 + 2

21/0 11 + 11 15 + 7

32/0 17 + 17

06

21/42 7 + 7 10 + 4 12 + 2

32/64 11 + 11 15 + 7 20 + 2

42/85 14.5 + 14.5

53/106 18 + 18

08

21/42 5 + 5 7 + 3 8 + 2

32/64 7.5 + 7.5 11 + 4 13 + 2

42/85 10 + 10 14 + 6 18 + 2

53/106 13 + 13 18 + 8

64/127 15. 5 + 15.5

74/148 18 + 18

10

32/64 6 + 6 7 + 3 8 + 2

42/85 8 + 8 11 + 5 14 + 2

53/106 10 + 10 14 + 6 18 + 2

64/127 12 + 12 17 + 7

74/148 14 + 14

85/169 16 + 16

95/191 18 + 18

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Table 10 36CBAF Unit Flow Pattern 2-Way Blow

*Higher airflow function can be offered for the 36CBAF12 onrequest.NOTES:

1. Data above is applicable for .0120 psi static pressure drop.

2. Total airflow is determined by the hole opening on each side ofthe beam. For example, 7 + 3 indicates that the hole openingson the left side of the beam are opened to the position 7 andthe holes on the right are opened to position 3.

Table 11 36CBAN Unit Flow Pattern 2-Way Blow

NOTE: Total airflow is determined by the hole opening on each sideof the beam. For example, 7 + 3 indicates that the hole openings onthe left side of the beam are opened to the position 7 and the holeson the right are opened to position 3.

36CBAF UNIT SIZEPRIMARY AIRFLOW (cfm)


Two-Way 70%-30% One-Way

04

11/ 3 + 3 4 + 2 4 + 2

21/ 11 + 11 15 + 7

32/ 18 + 18

06

21/42 5 + 5 7 + 3 8 + 2

32/64 9 + 9 13 + 5 16 + 2

42/85 13 + 13 18 + 8

53/106 17 + 17

08

21/42 3 + 3 4 + 2

32/64 6 + 6 8 + 4 10 + 2

42/85 8 + 8 11 + 5 14 + 2

53/106 11 + 11 15 + 7

64/127 14 + 14 18 + 10

74/148 16 + 16

10

32/64 4 + 4 5 + 3 6 + 2

42/85 6 + 6 8 + 4 10 + 2

53/106 9 + 9 13 + 5 16 + 2

64/127 11 + 11 15 + 7

74/148 13 + 13 18 + 8

85/169 15 + 15

95/191 18 + 18

12*

42/ 5 + 5 7 + 3 8 + 2

53/ 7 + 7 10 + 4 12 + 2

64/ 9 + 9 13 + 5 16 + 2

74/ 11 + 11 15 + 7

85/ 13 + 13 18 + 8

95/ 14 + 14 18 + 10

106/ 16 + 16

117/ 18 + 18

36CBAN UNIT SIZEPRIMARY AIRFLOW (cfm)


Two-Way 70% - 30% One-Way

04

11/ 3 + 3 4 + 2 4 + 2

21/ 11 + 11 15 + 7

32/ 18 + 18

06

21/42 5 + 5 7 + 3 8 + 2

32/64 9 + 9 12 + 6 16 + 2

42/85 14 + 14

53/106 18 + 18

08

21/42 2 + 2

32/64 5 + 5 7 + 3 8 + 2

42/85 9 + 9 12 + 6 16 + 2

53/106 12 + 12 17 + 7

64/127 15 + 15

74/148 18 + 18

10

32/64 3 + 3 4 + 2 4 + 2

42/85 6 + 6 8 + 4 10 + 2

53/106 8 + 8 11 + 5 14 + 2

64/127 11 + 11 15 + 7

74/148 13 + 13 18 + 8

85/169 16 + 16

95/191 18 + 18

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Table 12 36CBAC Unit Cooling Capacity, One-Way Blow

LEGEND

NOTES:1. Water flow is equal to 0.8 gpm.2. Assume static pressure drop on the air side is 0.25 in. wg.3. T equals the difference between room air temperature and

average water temperature.4. Sound pressure level as measured in a room with 32.8 sq ft

room absorbtion.5. Total cooling capacity of the beam equals the cooling capacity

of the coil plus the cooling capacity of the primary air, where

the cooling capacity of the primary air is based on a differenceof 14.4 F between the primary air and room temperatures.

6. Data based on tests using the Nordtest method which requires

a zero temperature difference between the air entering thebeam coil and the air at 3.6 ft above the floor surface. Toachieve this, the walls in the test room are cooled. In actuaconditions, the temperature difference is normally 1.8 to 3.6 FThis is why the temperature difference T should beincreased by 1.8 to 3.6 F to avoid oversizing of the beamTherefore, the table value can be increased by 10 to 20%.

7. Sound is increased by 2 to 3 dB(A) with top connections.8. The chilled beam can be supplied as a special unit for highe

airflow rates than those listed in these tables.

Table 13 36CBAC Unit Heating Capacity, 2-Way Blow

LEGEND

NOTES:1. Water flow is equal to 0.8 gpm.

2. Assume static pressure drop on the air side is 0.25 in. wg.3. T equals the difference between room air temperature and

average water temperature.4. Heating capacity shown on unit without extended casing.

36CBACUNIT SIZE

WATERPRESSURE

DROP (ft wg)

SUPPLYAIRFLOW

(cfm)

TOTAL COOLING CAPACITY (Btuh)T (F)

COIL COOLING CAPACITY (Btuh)T (F)

SOUNDPRESSURE

LEVEL(dB[A])11 14 18 11 14 18

06 0.7

13 614 751 887 409 546 682

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Table 14 36CBAE Unit Cooling Capacity, Two-Way Blow

LEGEND




of the coil plus the cooling capacity of the primary air, where the

cooling capacity of the primary air is based on a difference of14.4 F between the primary air and room temperatures.

6. Data based on tests using the Nordtest method which requiresa zero temperature difference between the air entering thebeam coil and the air at 3.6 ft above the floor surface. Toachieve this, the walls in the test room are cooled. In actualconditions, the temperature difference is normally 1.8 to 3.6 F.This is why the temperature difference T should beincreased by 1.8 to 3.6 F to avoid oversizing of the beam.Therefore, the table value can be increased by 10 to 20%.

7. Sound is increased by 2 to 3 dB(A) with top connections.8. The chilled beam can be supplied as a special unit for higher

airflow rates than those listed in these tables.

Table 15 36CBAE Unit Cooling Capacity, High Airflow

LEGEND

NOTES:1. Water flow is equal to 0.8 gpm.

2. Assume static pressure drop on the air side is 0.25 in. wg.3. T equals the difference between room air temperature and

average water temperature.

36CBAEUNIT SIZE

WATERPRESSURE

DROP (ft wg)

SUPPLYAIRFLOW

(cfm)



SOUNDPRESSURE

LEVEL(dB[A])11 14 18 11 14 18

04 0.4

11 699 887 1058 546 717 887

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Table 16 36CBAE Unit Cooling Capacity Factor for One-Way and Intermediate Blow

NOTE: The value given in the unit cooling capacity table is multipliedby the capacity factor in the above table to reflect the reduced coilcapacity in a one-way blow distribution or intermediate air distribu-tion position.

Table 17 36CBAE Unit Heating Capacity, 2-Way Blow

LEGEND NOTES:1. Water flow is equal to 0.8 gpm.2. Assume static pressure drop on the air side is 0.25 in. wg.3. T equals the difference between room air temperature and


36CBAE UNIT SIZE AIR DISTRIBUTIONMAXIMUM PRIMARY AIRFLOW

(cfm)CAPACITY FACTOR

04One-way 5 0.8

70 to 30% 10 0.9

06One-way 15 0.8

70 to 30% 15 0.9

08One-way 20 0.8

70 to 30% 25 0.9

10One-way 25 0.8

70 to 30% 30 0.9

36CBAEUNIT SIZE

WATER PRESSURE DROP(ft wg)

SUPPLY AIRFLOW(cfm)

COIL HEATING CAPACITY (Btuh) T (F)

36 45 54

04 0.20

11 1177 1450 1723

21 1587 2013 2423

32 1774 2218 2661

06 0.27

21 2150 2627 3190

32 2508 3156 3753

42 2730 3395 4060

53 2849 3531 4265

08 0.37

21 2371 3020 3566

32 3071 3804 4589

42 3395 4265 5118

53 3668 4538 5425

64 3804 4743 5715

74 3924 4879 5852

10 0.43

32 3361 4197 5016

42 3958 4913 5920

53 4333 5408 6483

64 4555 5715 6824

74 4726 5920 7080

85 4879 6056 7285

95 4947 6210 7455

T Temperature Change

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Table 18 36CBAF Unit Cooling Capacity, 2-Way Blow

LEGEND



room absorbtion.

5. Total cooling capacity of the beam equals the cooling capacityof the coil plus the cooling capacity of the primary air, where thecooling capacity of the primary air is based on a difference of14.4 F between the primary air and room temperatures.

6. Data based on tests using the Nordtest method which requires

a zero temperature difference between the air entering thebeam coil and the air at 3.6 ft above the floor surface. Toachieve this, the walls in the test room are cooled. In actualconditions, the temperature difference is normally 1.8 to 3.6 F.This is why the temperature difference T should beincreased by 1.8 to 3.6 F to avoid oversizing of the beam.Therefore, the table value can be increased by 10 to 20%.

7. The chilled beam can be supplied as a special unit for higherairflow rates than those listed in these tables.

36CBAFUNIT SIZE

WATERPRESSURE

DROP (ft wg)

SUPPLYAIRFLOW

(cfm)



SOUNDPRESSURE

LEVEL(dB[A])11 14 18 11 14 18

04 0.6

11 461 563 665 290 392 495

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Table 19 36CBAF Unit Cooling Capacity, High Airflow



Table 20 36CBAF Unit Cooling Capacity Factor for One-Way and Intermediate Blow

NOTE: The value given in the unit cooling capacity table is multipliedby the capacity factor in the above table to reflect the reduced coilcapacity in a one-way blow distribution or intermediate air distribu-tion position.

36CBAFUNIT SIZE

WATERPRESSURE

DROP (ft wg)

SUPPLYAIRFLOW

(cfm)



11 14 18 11 14 18

04 0.6

22 651 765 885 333 448 568

42 1204 1392 1589 607 798 899

64 1590 1809 2043 724 955 1195

06 0.9

42 1723 2064 2405 1058 1399 1740

64 2303 2713 3139 1314 1723 2150

85 2730 3207 3668 1416 1894 2354

106 3088 3566 4026 1450 1928 2388

08 1.1

42 1877 2269 2661 1211 1604 1996

64 2508 2986 3480 1518 1996 2491

85 3020 3583 4146 1706 2269 2832

106 3480 4077 4692 1842 2440 3054

127 3839 4470 5101 1877 2508 3139

148 4197 4828 5459 1894 2525 3156

10 1.4

64 2644 3190 3719 1655 2201 2730

85 3258 3890 4521 1945 2576 3207

106 3770 4470 5169 2133 2832 3531

127 4231 4982 5732 2269 3020 3770

148 4623 5408 6193 2320 3105 3890

169 4999 5783 6585 2388 3173 3975

191 5306 6090 6875 2371 3156 3941


36CBAF UNIT SIZE AIR DISTRIBUTIONMAXIMUM PRIMARY AIRFLOW

(cfm)CAPACITY FACTOR

04One-way 11 0.8

70 to 30% 21 0.9

06One-way 32 0.8

70 to 30% 42 0.9

08 One-way 42 0.870 to 30% 64 0.9

10One-way 64 0.8

70 to 30% 74 0.9

12One-way 74 0.8

70 to 30% 95 0.9

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Table 21 36CBAF Unit Heating Capacity, 2-Way Blow



36CBAFUNIT SIZE


SUPPLY AIRFLOW(cfm)


36 45 54

04 0.33

11 629 795 967

21 1144 1422 1700

32 1366 1698 2031

06 0.50

21 1962 2423 2866

32 2508 3122 3702

42 2695 3395 4094

53 2883 3634 4384

08 0.60

21 2115 2593 3088

32 2781 3429 4094

42 3361 4163 4964

53 3668 4538 5425

64 3770 4743 5715

74 3924 4913 5920

10 0.70

32 2968 3668 4384

42 3583 4470 5323

53 4146 5135 6125

64 4589 5681 6756

74 4726 5920 7080

85 4811 6056 7285

95 4879 6176 7421

12 0.80

32 3105 3890 462342 3804 4709 5664

53 4367 5442 6517

64 4999 6176 7353

74 5289 6585 7882

85 5579 6960 8342

95 5800 7251 8684

106 5835 7353 8820

117 5920 7421 8922


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Table 22 36CBAN Unit Cooling Capacity, 2-Way Blow

LEGEND




of the coil plus the cooling capacity of the primary air, where the

cooling capacity of the primary air is based on a difference o14.4 F between the primary air and room temperatures.

6. Data based on tests using the Nordtest method which requiresa zero temperature difference between the air entering thebeam coil and the air at 3.6 ft above the floor surface. Toachieve this, the walls in the test room are cooled. In actuaconditions, the temperature difference is normally 1.8 to 3.6 FThis is why the temperature difference T should beincreased by 1.8 to 3.6 F to avoid oversizing of the beamTherefore, the table value can be increased by 10 to 20%.

7. Sound is increased by 1 dB(A) with side connections. Soundis decreased by 1 dB(A) with top connections.

8. The chilled beam can be supplied as a special unit for higheairflow rates than those listed in these tables.

Table 23 36CBAN Unit Cooling Capacity Factor for One-Way and Intermediate Blow

NOTE: The value given in the unit cooling capacity table is multipliedby the capacity factor in the above table to reflect the reduced coilcapacity in a one-way blow distribution or intermediate air distribu-

tion position.

36CBANUNIT SIZE

WATERPRESSURE

DROP (ft wg)

SUPPLYAIRFLOW

(cfm)



SOUNDPRESSURE

LEVEL(dB[A])11 14 18 11 14 18

04 0.67

11 478 580 682 307 409 512

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Table 24 36CBAN Unit Heating Capacity, 2-Way Blow



TO ADJUST BEAM HOLE LENGTH

To adjust the 36CBAE unit hole length, determine the desiredairflow and perform the following (see Fig. 25):

1. Use a screwdriver or other tool to pull out unit rail slight-ly for adjustment.

2. Insert optional gage rod into unit rail slot until desired air-flow measurement is reached.

3. Move the unit rail in or out until gage rod is flush with rail

and unit.4. After adjustment has been made, record the adjusted

measurement on unit label.

To adjust the 36CBAN unit hole length, determine the desiredairflow and perform the following (see Fig. 26):

1. Manually move the unit rail tabs in or out until desiredhole length has been reached.

2. After adjustment has been made, record the adjustedmeasurement on unit label.

36CBANUNIT SIZE


SUPPLY AIRFLOW(cfm)


36 45 54

04 0.23

11 631 802 955

21 989 1228 1484

32 1228 1518 1842

06 0.33

21 1160 1484 1774

32 1450 1825 2184

42 1757 2218 2627

53 1979 2440 2951

08 0.43

21 1262 1621 1928

32 1621 2013 2405

42 2013 2508 3020

53 2252 2815 3395

64 2508 3105 3736

74 2678 3378 4026

10 0.54

32 1757 2218 2627

42 2184 2713 3276

53 2440 3037 3651

64 2781 3446 4163

74 2968 3702 4470

85 3241 4060 4862

95 3412 4265 5101


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Fig. 25 36CBAE Unit Hole Adjustment

q = k p m(l/s) (Pa)

q = 3.6k p m

(m3/h) (Pa)

7.0

6.0

5.04.5

4.0

3.5

3.0

2.5

2.01.8

1.6

1.4

1.2

0.9

0.8

0.7

0.6

0.5

1.0

4 5 10 15 20 25 30 36

10

08

06

04

k1

36CBAEUNIT SIZE

L1 + L2, mm

L2

L1

L2

L1

k1

k2

k2 = k1 x 2

a36-499

52s/l,q 10 15 20

18+187+7 11+11 14.5+14.5L1 + L2, mm

L = 1.8 mp= 60 Pa

........................................... ...........................................

18 18

+

18

17

16

15

14

13

12

11

10

98

7

Lmm

1.2.

3.

4.

pm

UNIT LABEL

UNIT LABEL

GAGE RODa36-500

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Fig. 26 36CBAN Unit Hole Adjustment

L 1

02

46

810

1214

16 18

024

6810

1214

1618

L 2

pm

L 1

0

24

6

810

12

14 1618

024

68

1012

1416

18

L 2

UNIT LABEL

L=1,2

L=1,75

L=1,8

L=2,4

L=3,0

11+11

5+5

5+5

2+2

18+18

9+9

9+9

5+5

3+3

14+14

14+14

9+9

6+6

18+18 L1+L2 ( P=60 Pa )

18+18

12+12

8+8

15+15

11+11

18+18

13+13 1 6+1 6 18+18

3+3

L (m) 5 10 15 20 25 30 35 40 45 q(l/s )

L1 mm L2 mm

18

16

14

12

108642

002

4681012141

618

L1 L2

a36-502

L1

024

6810

1214 16

18

0246

8101

214

1618

L2

L2

L1

q = k pm(l/s) (Pa)

q =3.6k pm

(m3/h) (Pa)

7.0

6.0

5.0

4.0

3.0

2.0

1.8

1.6

1.4

1.2

0.9

0.8

0.7

0.6

0.5

1.0

4 5 10 15 20 25 30 36

10

08

06

04

k

36CBAN

UNIT SIZE

L1 + L2

k1

k2 = k1 x 2

L1

024

6810

12

14 16 18

0246

8101

214

1618

L2

L2

L1

k2

a36-501

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FPC Function Built-in vanes and adjustable rails allowthe airflow pattern to be adjusted at different angles: 0, 15, 30,and 45 degrees on active beam units with the comfort controland FPC functions (not available on 36CBAN units). SeeFig. 27. Directional adjustments can be achieved in sections of12 in. within the beam.

Generally, this can reduce air throw by 20%. A beam withFPC can thus be positioned both closer to a wall or to otherbeams when compared with a beam without FPC.

Figure 28 shows an installation where the air deflectors areset at 30 degrees in 2 directions and the airflow is set with thecomfort control setting at 50% and 50%. This installationoption provides effective and comfortable air distribution in theroom.

Figure 29 shows an installation where a high airflow is re-quired. The comfort control setting is still set at 50% and 50%,but the air deflectors are set at 30 degrees in 2 directions and at30 degrees in one direction.

Figure 30 shows an installation where refurbishment hastaken place or where it has been decided to fit the chilled beambeside a pillar, for example. The respectively comfort controsetting is set at 0% and 100%, and the air deflectors are adjusted to 0 degrees and 30 degrees respectively.

Figure 31 shows an installation where the comfort controsetting is set at 20% and 80% respectively. This installationis designed to avoid drafts, e.g., if the chilled beam is fittednext to a desk. The air deflectors are set at 30 degrees in2 directions.

COOLING CAPACITY The FPC reduces the cooling ca-pacity of the chilled beam by approximately 0 to 8% dependingon the airflow, pressure drop and the angle set on the FPC

Noise is not affected by the FPC.TO ADJUST THE FPC FUNCTION Determine thedesired airflow. Use the unit FPC tool to move the unitvanes to the desired angle on one or both sides of the unit.(See Fig. 32.)

45

1 - 2 - 3 1 - 2 - 3

4515 1 5

30 30

Fig. 27 FPC Adjustment

a36-503

Fig. 30 Air Deflectors Set to 0 Degrees and30 Degrees

a36-504

Fig. 28 Air Deflectors Set at 30 Degrees in2 Directions a36-486

Fig. 29 Air Deflectors Set at 30 Degrees in2 Directions and at 30 Degrees in One Direction

a36-486

Fig. 31 Air Deflectors Set at 30 Degrees in2 Directions

a36-505

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Fig. 32 36CBAF Unit FPC Function Adjustment

q = k pm(l/s) (Pa)

q = 3.6k pm

(m3/h) (Pa)

k2

k2 = k1 x 2

k1

L=1,8

L=2,4

L=3,0

L=3,6

5+5

3+3

9+9

6+6

4+4

13+13

8+8

6+6

5+5

17+17

11+11

9+9

7+7

14+14

11+11

9+9

16+16

13+13

11+11

15+15

13+13

18+18

14+14

L (m)

5

10

10

20

15

30

20

40

25

50

30

60

35

70

40

80

45

90 q(l/s)

L1 mm L 2 mm

50 55

L1+L2 ( P=7 0 Pa )

1 6+ 16 18+18

1

2

L1 L2

0246810

12

14

16

18

L1 L2

7.0

6.0

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.8

1.6

1.4

1.2

0.9

0.8

0.7

0.6

0.5

0.4

1.0

4 5 10 15 20 25 30 36

12

10

08

06

04

k1

36CBAFUNIT SIZE

L1 + L2, mm

UNIT LABEL

UNIT LABEL

a36-506

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MAINTENANCE

The coil must be accessible for cleaning. This applies inparticular to the upstream side of the coil in first contact withthe entering room air. The cleaning interval for coils is general-ly 5 to 10 years.

Active Chilled Beams For active chilled beams, theroom air is admitted into the coil from below. The underside isreadily accessible for cleaning by hinging down the bottomplate or sliding the plate out of the way.

CLEANING THE 36CBAC,AE UNIT To clean the36CBAC,AE unit (see Fig. 33):

1. Take a damp cloth and wipe the outside of the unit.

2. Push bottom plate of unit up and slide plate back to ex-pose the unit coil.

3. Vacuum unit coil and bottom plates using a brush attachment. Use a crevice attachment to vacuum unit crevices.

4. To clean inside of unit, do one of the following:

a. Unscrew inside plate and remove it to vacuum theunit internally using a brush attachment.

b. Remove duct plate and vacuum the duct internallyusing a brush attachment.

CLEANING THE 36CBAF UNIT To clean the 36CBAFunit (see Fig. 34):

1. Wipe outside of unit with damp cloth.

2. Remove unit end cap.

3. Open bottom plate of unit by sliding unit tab to the side.

4. Vacuum unit coil and unit interior using brushattachment.

1

2 3

4A

2.

1.

4B

1.

2.

3.

1.

2.

Fig. 33 36CBAC,AE Unit Cleaning

a36-507

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1

2

3

4

Fig. 34 36CBAF Unit Cleaning

a36-508

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CLEANING THE 36CBAN UNIT To clean the 36CBANunit (See Fig. 35):

1. Wipe the outside of the unit with a damp cloth.

2. Push bottom plate up and slide back to expose unit coil.

3. Vacuum unit coil and bottom plate using brush attach-ment. Vacuum unit crevices using crevice attachment.

4. Clean the unit internally by doing one of the following:

a. Remove internal cap. Blow air through unit usingthe reverse air function of an empty, cleanvacuum.

b. Remove duct cap. Vacuum unit internally usingbrush attachment by inserting vacuum hose insideduct and moving the hose around.

Fig. 35 36CBAN Unit Cleaning

L 1

02

46

8

10

12

14 16 18

02

468

1012

1416

18

L 2

1

2 3

4A

3.

2.

1.

4B

1.

2.

1.

2.

a36-509

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Passive Chilled Beams For passive beams, the up-per surface of the coil must be vacuum cleaned.

If the beam is built into a false ceiling, a number of falseceiling panels must first be removed.

CLEANING THE 36CBPB,PD,PS UNIT To clean the36CBPB,PD,PS unit (See Fig. 36):

1. Wipe the outside of unit with a damp cloth.

2. Push the bottom plate up and slide plate back to exposeunit coil. Wipe bottom of unit coil clean with damp cloth.

3. Vacuum top of unit coil using brush attachment.

Fig. 36 36CBPB,PD,PS Unit Cleaning

a36-510

36cb-1si

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