Main BC Controller: CMB-P108NU-JA1

Job Name:

System Reference: Date:

ACCESSORIES

Branch Joint (Downstream capacity ≤72,000 Btu/h) CMY-Y102SS-G2*

Branch Joint (Downstream capacity 73,000-96,000 Btu/h) CMY-Y102LS-G2*

Branch Joint (Downstream capacity ≤126,000 Btu/h) CMY-R201S-G*

Branch Joint (Downstream capacity 127,000-216,000 Btu/h) CMY-R202S-G*

Branch Joint (Downstream capacity 217,000-234,000 Btu/h) CMY-R203S-G*

Branch Joint (Downstream capacity 235,000-360,000 Btu/h) CMY-R204S-G*

Branch Joint (Downstream capacity ≥316,000 Btu/h CMY-R205S-G*

Condensate Pump (Blue Diamond X87-721

Condensate Pump (Sauermann) SI3100-230

Ball Valve (3/8” SAE Brazed) BV38BBSI

Ball Valve (5/8” SAE Brazed) BV58BBSI

Reducer (Between ODU and BC) CMY-R302S-G1*

Reducer (Between Main and Sub BC) CMY-R303S-G1

*See Data Book or Install Manual for more details

NOTES:

1. Installation/foundation work, electrical connection work, insulation work, power source switch, and other items shall be referred to the Installation Manual.

2. The equipment is for R410A refrigerant.

3. Install this product in a location where noise (refrigerant noise) emitted by the unit will not disturb the neighbors. (For use in quiet environments with low background noise, position the BC CONTROLLER at least

5m away from any indoor units.)

4. Sound pressure/power level differs depending on the connected outdoor/heat source unit capacity or operation condition. The sound pressure/power level at the rated operation is the value of the cooling mode.

5. The sound pressure/power level values were obtained in an anechoic room. Actual sound pressure level is usually greater than that measured in anechoic room due to ambient noise and deection sound.

6. The sound pressure level values were obtained at the location below 1.5m from the unit.

7. The solenoid valve switching sound is 56 dB (sound pressure level) regardless of the unit model.

8. Refrigerant piping diameter for connection of plural indoor units with 1 branch shall be referred to the Installation Manual.

9. This unit is not designed for outside installations.

10. When brazing the pipes, be sure to braze, after covering a wet cloth to the insulation pipes of the units in order to prevent it from burning and shrinking by heat.

11. Indoor unit capacity connectable to 1 branch is changed depending on the indoor unit type and connection method. Please refer to the Installation Manual for more information.

12. For the refrigerant pipe size, refer to Installation Manual of outdoor units/heat source units.

SPECIFICATIONS

Indoor Unit Capacity Connectable to 1 Branch Btu/h 54,000

Number Of Branches 8

Electrical Requirements

Electrical Power Requirements 208 / 230V, 1 phase, 60Hz

Minimum Circuit Ampacity (MCA) A 0.83 / 0.97

Maximum Overcurrent Protection (MOCP) A 15

Power Input (208 / 230V

Cooling

0.137 / 0.176

Heating 0.076 / 0.098

Current Input (208 / 230V)

Cooling

0.66 / 0.77

Heating 0.37 / 0.43

External Dimensions In. (mm) 9-7/8 x 35-7/8 x 21-1/2 (250 x 911 x 545)

Net Weight Lbs. (kg) 106 (48)

External nish

Galvanized steel plate (Lower part drain pan:

Pre-coated galvanized sheets + powder coating)

Connectable Outdoor / Heat Source Unit Capacity 72,000 to 336,000

Refrigerant Piping Diameter to Indoor Unit (Brazed)

Liquid Gas

Less than 18,000 Btu/h In. (mm) 1/4 (6.35) 1/2 (12.7)

Greater than 18,000 Btu/h

In. (mm) 3/8 (9.52) 5/8 (15.88)

In. (mm) 3/8 (9.52) 3/4 (19.05)

In. (mm) 3/8 (9.52) 7/8 (22.2)

Refrigerant Piping Diameter to Outdoor Unit (Brazed)

High Pressure Low Pressure

P72 In. (mm) 5/8 (15.88) 3/4 (19.05)

P96 In. (mm) 3/4 (19.05) 7/8 (22.2)

P120 In. (mm) 3/4 (19.05) 7/8 (22.2) or 1-1/8 (28.58)

P144 to P192 In. (mm) 3/4 (19.05) 1-1/8 (28.58)

P216 In. (mm) 7/8 (22.2) or 1-1/8 (28.58) 1-1/8 (28.58)

P240 In. (mm) 7/8 (22.2) or 1-1/8 (28.58) 1-3/8 (34.93)

P264 to P288 In. (mm) 1-1/8 (28.58) 1-3/8 (34.93)

P312 In. (mm) 1-1/8 (28.58) 1-3/8 (34.93) or 1-5/8 (41.28)

P336 In. (mm) 1-1/8 (28.58) 1-5/8 (41.28)

Refrigerant Piping Diameter to other BC Controller (Brazed)

High Pressure Liquid Pipe Low Pressure Pipe

P72 In. (mm) 5/8 (15.88) 3/8 (9.52) 3/4 (19.05)

P73 to P108 In. (mm) 3/4 (19.05) 3/8 (9.52) 7/8 (22.2)

P109 to P126 In. (mm) 3/4 (19.05) 1/2 (12.7) 1-1/8 (28.58)

P127 to P144 In. (mm) 7/8 (22.2) 1/2 (12.7) 1-1/8 (28.58)

P145 to P216 In. (mm) 7/8 (22.2) 5/8 (15.88) 1-1/8 (28.58)

P217 to P234 In. (mm) 1-1/8 (28.58) 5/8 (15.88) 1-1/8 (28.58)

P235 to P288 In. (mm) 1-1/8 (28.58) 3/4 (19.05) 1-3/8 (34.93)

P289 to P360 In. (mm) 1-1/8 (28.58) 3/4 (19.05) 1-5/8 (41.28)

P361 or above In. (mm) 1-3/8 (34.93) 3/4 (19.05) 1-5/8 (41.28)

Field drain pipe size In. (mm) 3/4 NPT

Refrigerant R410A

Sound power level (measured in anechoic room)

Rated operation

dB(A)

Defrost 74

Sound pressure level (measured in anechoic room)

Rated operation

dB(A)

Defrost 56

□

Model: CMB-P108NU-JA1 - DIMENSIONS

MEES18K054

BC controller

2. EXTERNAL DIMENSIONS

BC controller

CMB-P108, 1012, 1016NU-JA1

Unit: mm(in)

1 2345

7 8 9 10 11 12 13 14 15 16

(Lifting bolt pitch)

ø38.1(1-1/2) (Note 6)

(7-7/16)

(6-1/8)

(15/16) (6-1/4)

(1-7/8)

(3-5/8)

(3-7/8)

(1-7/8)

(1-5/8)

(5-1/8)

(3-1/16)

(6-1/8)

(2-11/16)

(8-13/16)

ø34.93(1-3/8) (Note 6)

Indoor unit model (Note 5)

P18 or less:ø6.35(1/4)<Brazed>

P18 over :ø9.52(3/8)<Brazed>

Indoor unit model (Note 5)

P18 or less:ø12.7(1/2)<Brazed>

P18 over :ø15.88(5/8)<Brazed>

ø28.58(1-1/8) (Note 6)

ø19.05(3/4) (Note 6)

ø38.1(1-1/2) (Note 6)

Control box

(Emergency draining)

Detail of X section

Detail of Y section

(13/16)

(9/16)

(1-3/16)

(1/2)

(Indoor unit Model:P18 over)

(Indoor unit Model:P18 or less)

•

Square washer (with cushion)

•••••••••

4pcs.

•

Square washer

•••••••••••••••••••••••••••

4pcs.

(10-7/16)

264

(13-1/2)

342

(10-3/4)273

(8-1/16)204

(18-1/4)463

(21-1/2)545

130

155 188

(2-3/8)60

60(2-3/8)×C=D

158

(2-3/8)60

60(2-3/8)×C=D

(9-15/16)

252

(7/8)

(3-3/16)80

155

(10-7/16)264

(12-13/16)325

(14-15/16)379

(1)25

223

(8-5/8)218

(2)50

Connection pipe of outdoor unit

(Low pressure)

Connection pipe of outdoor unit

(High pressure)

Connection pipe of

indoor unit (Liquid)

Connection pipe of

indoor unit (Gas)

Connection pipe of

SUB BC CONTROLLER

(High pressure)

Connection pipe of

SUB BC CONTROLLER

(Liquid)

Connection pipe of

SUB BC CONTROLLER

(Low)

3/4 NPT screw

Cutting point

Note 1. Suspension bolt(ø10) and nut(M10) prepare in the field.

2. Take notice of service space as shown.

(Please give attention not to occupy service

space by letting ducts and pipes through.)

3. Please take service space for connection pipe of SUB BC CONTROLLER.

4. Install this product in a location where noise (refrigerant noise)

emitted by the unit will not disturb the neighbors.

(For use in quiet environments with low background noise, position

the BC CONTROLLER at least 5m away from any indoor units.)

5. Refer to the Installation Manual for refrigerant piping diameter size

when connecting plural indoor units with 1 branch.

6. Refer to the Table-1,2 connection pipe of outdoor unit

or SUB BC CONTROLLER diameter size.

7. Refer to the Installation Manual for insulation of connection pipe and

drain piping.

8. Do not place the BC controller directly on the floor.

Connectable

unit capacity

High press. Pipe Low press. Pipe

P72

ø15.88(5/8)

ø19.05(3/4)

P96

ø19.05(3/4) ø22.2(7/8)

P120

ø19.05(3/4)

ø22.2(7/8) or ø28.58(1-1/8)

P144 to P192

ø22.2(7/8) ø28.58(1-1/8)

P216

ø22.2(7/8) or ø28.58(1-1/8)

ø28.58(1-1/8)

P240

ø22.2(7/8) or ø28.58(1-1/8)

ø34.93(1-3/8)

P264 to P288

ø28.58(1-1/8)

ø34.93(1-3/8)

P312

ø28.58(1-1/8)

ø34.93(1-3/8) or ø41.28(1-5/8)

P336

ø28.58(1-1/8)

ø41.28(1-5/8)

Table-1. To outdoor/heat source unit (Note.6)

Total downstream

Indoor unit capacity

High press. Pipe Liquid Pipe Low press. Pipe

~P72

ø15.88(5/8) ø9.52(3/8) ø19.05(3/4)

P73~108

ø19.05(3/4) ø9.52(3/8) ø22.2(7/8)

P109~126

ø19.05(3/4) ø12.7(1/2) ø28.58(1-1/8)

P127~144

ø22.2(7/8) ø12.7(1/2) ø28.58(1-1/8)

P145~216

ø22.2(7/8) ø15.88(5/8) ø28.58(1-1/8)

P217~234

ø28.58(1-1/8) ø15.88(5/8) ø28.58(1-1/8)

P235~288

ø28.58(1-1/8) ø19.05(3/4) ø34.93(1-3/8)

P289~360

ø28.58(1-1/8) ø19.05(3/4) ø41.28(1-5/8)

P361~

ø34.93(1-3/8) ø19.05(3/4)

ø41.28(1-5/8)

Table-2. To other BC controller (Note.6)

*For the refrigerant pipe size, refer to Installation Manual of outdoor units/heat source units.

Access

door

(17-3/4) (9-7/8)

(11-13/16)

(17-3/4)

(9-7/8)

(3-15/16)

(7-7/8)

A BCD E

CMB-P108NU-JA1

911(35-7/8) 983(38-3/4) 7 420(16-9/16) 231(9-1/8)

CMB-P1012NU-JA1

1135(44-11/16) 1207(47-9/16) 11 660(26) 343(13-9/16)

CMB-P1016NU-JA1

1135(44-11/16) 1207(47-9/16) 15 900(35-7/16) 343(13-9/16)

(100)

(200)

250

(27-3/8)(700)

250

(300)

450

Service space

space

Service

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1340 Satellite Boulevard. Suwanee, GA 30024

Toll Free: 800-433-4822 www.mehvac.com

FORM# CMB-P108NU-JA1 Product Data Sheet - 202005

Specications are subject to change without notice.