Wallmaster Service Manual (2010)
6
2010 PERFORMANCE DATA
Sleeve / Chassis Dimensions
27" Sleeve
Height (inches) 16 3/4 16 3/4 16 3/4
Width (inches)272727
Depth (inches) 16 3/4 16 3/4 16 3/4
Friedrich WSC 
Sleeve
Fedders A 
Sleeve
Fedders B Sleeve*
Sleeve Dimensions
WidthMax. Depth
WSD Sleeve 16 3/427 16 3/4237 1/2 9/16 17 1/4 27 1/415  5/16
Chassis 15 3/4 26 1/22122-----
Depth
with
Front
Minimum
Extension
Into Room
Minimum
Extension
Outside
Height
TTW Finished Hole
Height WidthDepth
Model
WALLMASTER
Specifications
WallMaster Heat Pump heating information (shown in red) indicates heat pump heating performance. WallMaster Electric Heat heating information (shown in red) 
indicates electric heat strip performance. For WallMaster Heat Pump electric heating performance refer to corresponding WallMaster Electric Heat model.
Estar
Model
 Cooling 
Capacity Btu
 Heating 
Capacity Btu
Volts 
Rated
Cooling 
Amps Cooling Watts
Heating 
Amps
Heating 
Watts
Energy 
Efciecy Ratio
EER
Moisture 
Removal
Pints/HR
Room 
Side Air 
Circulation 
CFM Sleeve
Net Weight 
Lbs
WALLMASTER
Cool only
WS08C10A 7800 NA 115 7.1 788 NA NA 9.9 1.2 250 WSD 93
WS10C10A 9700 NA 115 10.0 1032 NA NA 9.4 2.4 257 WSD 103
WS12C10A 11900 NA 115 11.8 1266 NA NA 9.4 3.3 295 WSD 112
WS10C30A 9500/9200 NA 230/208 4.5/4.7 989/958 NA NA 9.6/9.6 1.5 300 WSD 101
WS13C30A 12600/12300 NA 230/208 6.3/6.7 1340/1309 NA NA 9.4/9.4 3.6 290 WSD 109
WS15C30A 14500/14500 NA 230/208 8.3/8.2 1706/1706 NA NA 8.5/8.5 4.2 290 WSD 119
Heat Pumps
WY09C33A 9300/9000 7300/7300 230/208 4.4/4.7 989/957 3.8/4.0 839/793 9.4/9.4 2.1 250 WSD 103
WY12C33A 12000/11800 9350/9200 230/208 6.1/6.4 1395/1372 4.8/5.1 1062/1010 8.6/8.6 2.6 275 WSD 111
Cool with Electric Heat
WE10C33A 9500/9200 11000/9100 230/208 4.5/4.7 989/958 16.0/14.7 3550/2950 9.6/9.6 1.5 300 WSD 121
WE13C33A 12600/12300 11000/9100 230/208 6.3/6.7 1340/1309 16.0/14.7 3550/2950 9.4/9.4 3.6 290 WSD 107
WE15C33A 14500/14500 11000/9100 230/208 8.3/8.8 1706/1706 16.0/14.7 3550/2950 8.5/8.5 4.2 290 WSD 116
DEFROST CONTROL: Initiated at 30°F (outdoor coil temperature for two 
consecutive minutes) and terminated at  43°F  (outdoor  coil  temperature). During 
defrost,  the  compressor  stops  and the electric heat starts,  then operates wit
h 
the fan to maintain indoor comfort. The unit remains in electric heat mode.
DEFROST DRAIN: Drain automatically opens at approximately 50°F to prevent 
condensate from freezing inside drain pan.
Note: all models will produce condensate. If condensate disposal is desired, an 
optional drain kit is available.
As an   partner, Friedrich Air Conditioning Co. has determined that the selected 
(
   ) meet the   guidelines for energy efficiency.
All models use
environmentally 
friendly R-410A 
refrigerant.
R-410A
WS08C10A  57 23 55 60 129 167 65 98 11 31 154 462 7.1 32.0 32.5 257 1085 15
WS10C10A 53 27 53 53 134 177 63 98 10 36 145 500 10.0 40.0 37.0 260 1080 15
WS12C10A 54 26 52 55 128 169 60 106 11 28 145 500 11.8 57.0 45.0 300 1380 15
WS10C30A 55 25 55 60 123 165 66 100 14 28 155 440 4.5 18.5 39.0 300 1400 15
WS13C30A 51 29 51 51 134 179 59 100 8 40 138 535 6.3 26.0 40.0 280 1300 15
WS15C30A 45 35 45 46 135 181 54 101 9 40 130 545 8.3 41.0 49.0 250 1345 15
WY09C33A 54 26 54 54 123 164 65 101 12 22 150 450 4.4 3.8 20.0 40.5 251 1335 20
WY12C33A 51 29 51 51 127 147 58 101 12 26 145 475 6.1 4.8   33.0 265 1330 20
WE10C33A 56 24 56 56 128 150 58 110 4 24 153 477 4.5 16.0 18.5 39.0 260 1455 20
WE13C33A 46 34 46 46 128 174 55 99 9 34 135 500 6.3 16.0 26.0 40.0 240 1350 20
WE15C33A 45 35 45 46 135 181 54 101 9 40 130 545 8.3 16.0 41.0 43.0 250 1345 20
*Rating Conditions: 80 degrees F, room air temp. & 50% relative humidity, with 95 degree F, outside air temp & 40% relative humidity, all systems use R410A
Dischar
ge 
Temp
Suction 
Temp
Liquid 
Temp
Super 
Heat
Evap 
CFM
Motor 
RPM
Locked 
Rotor Amps
Charge in 
OZ.
BREAKER 
FUSE
60 Hertz 
Amps
Sub-
Coolin
g
OPERATING 
PRESSURES
ELECTRICAL RATINGS
R410A
Suction
Dischar
ge
Amps 
Cool
Amps 
Heat
WALLMASTER
EVAPORATOR AIR TEMP. 
DEG. F
EVAPORATOR TEMP. 
DEG. F
CONDENSER 
TEMPERATU
DEG. F
RE
Discharge Air
Temp. Drop 
F.
T(in)
T(out)
COOLING 
PERFORMANCE 
DATA* 










