Indoor Units; Model Number Identification; Indoor Unit Specifications - Lennox MCB Series Service Manual

1. Indoor Units

1.1.

Model Number Identification

Series Type
M = Mini-Split
WC = Wall-Mounted Non-Ducted Unit
Major Design Sequence
B = Second Generation
1.2.

Indoor Unit Specifications

Indoor Unit Model No.
Nominal Size - Tons
Power Supply - 60 Hz - 1 phase
Room Temperature Range (°F)
Air Volume - cfm (High/Medium/Low) 246 / 205 / 147
Sound Data (dBA) - Low/Medium/High
Piping Connections - Liquid/Gas - o.d. - flare - in.
Indoor Unit Model No.
Nominal Size - Tons
Power Supply - 60 Hz - 1 phase
Room Temperature Range (°F)
Air Volume - cfm (High/Medium/Low)
Sound Data (dBA) - Low/Medium/High
Piping Connections - Liquid/Gas - o.d. - flare - in.
Net/Shipping weights - lbs.
M WC B 009 S 4 - 1 P
Unit Type
Nominal Cooling Capacity
009 = 0.75 ton
012 = 1 ton
018 = 1.5 tons
024 = 2 tons
Rated load amps
Output (W)
Cooling
Drain connection o.d. - in.
Net/Shipping weights - lbs.
Rated load amps
Output (W)
Cooling
Heating
Drain connection o.d. - in.
Cooling Efficiency
S = Standard Efficiency
MWCB009S4 MWCB012S4
0.75
208/230V 115V
3.13 8.5
13 20
60 - 90 60 - 90
333 / 253 / 211
35.0/31.0/22.5 40.5/35.5/33
1/4 / 3/8 1/4 / 1/2
1 1
18 / 23 20 / 25
MWHB009S4
0.75
115V 208/230V
6.3 3.11
20 13
60 - 90 60 - 90
32 - 86 32 - 86
239 / 170 / 137 246 / 176 / 141
37.5 / 28 / 20 37 / 28 / 20
1/4 / 3/8 1/4 / 3/8
1
18 / 23 18 / 23
2
Voltage
L = 115V-1 phase-60Hz
P = 208/230V-1 phase-60Hz
Minor Design Sequence
1 = 1st Revision
Refrigerant Type
4 = HFC-410A
MWCB018S4
1
208/230V 208/230V
4.2
13
60 - 90 60 - 90
324 / 232 / 194 471 / 353 / 306
40/35.5/30.5 46/38.5/31.5
1/4 / 1/2 1/4 / 1/2
1
19 / 25 25 / 32
MWHB012S4
115V
10.13
20
60 - 90
32 - 86
300 / 241 / 176
41 / 35 / 26.5
1/4 / 1/2
1 1
19 / 24
MWCB024S4
1.5 2
208/230V
6.8 9.3
30 58
60 - 90
588 / 471 / 400
47.5/39.5/36
3/8 / 5/8
1 1
30 / 38
1
208/230V
4.9
13
60 - 90
32 - 86
291 / 197 / 156
41 / 35 / 24
1/4 / 1/2
1
19 / 24