Engineering Manual

A-171
Model
MSZ-GL18NA
MSY-GL18NA
MSZ-GL24NA
MSY-GL24NA
Item Unit Cooling Heating Cooling Heating
Total
Capacity Btu/h 18,000 21,600 22,500 27,600
SHF — 0.87 — 0.75 —
Input kW 1.34 1.68 1.80 2.34
Rated frequency Hz 69 81 67.5 82.0
Electrical circuit
Indoor unit
MSZ-GL18NA
MSY-GL18NA
MSZ-GL24NA
MSY-GL24NA
Power supply
V,
phase,
Hz
208/230, 1, 60
Input kW 0.045 0.058
Fan motor current A 0.46/0.42 0.56/0.51
Outdoor unit
MUZ-GL18NA
MUZ-GL18NAH
MUY-GL18NA
MUZ-GL24NA
MUZ-GL24NAH
MUY-GL24NA
Power supply
V,
phase,
Hz
208/230, 1, 60
Input kW 1.295 1.635 1.742 2.282
Comp. current A 5.01/4.53 6.67/6.03 7.01/6.34 9.59/8.67
Fan motor current A 1.05/0.95 1.05/0.95 1.16/1.05 1.13/1.02
Refrigerant circuit
Condensing pressure PSIG 377 391 395 405
Suction pressure PSIG 144 103 141 102
Discharge temperature ˚F 149 178 158 171
Condensing temperature ˚F 111 111 115 115
Suction temperature ˚F 51 43 52 33
Comp. shell bottom temperature ˚F 134 160 140 148
Ref. pipe length ft. 25
Refrigerant charge (R410A) 3 lb 9 oz. 4 lb 3 oz.
Indoor unit
Intake air temperature
DB ˚F 80 70 80 70
WB ˚F 67 60 67 60
Discharge air temperature
DB ˚F 52 111 56 111
WB ˚F 51 — 53 —
Fan speed (High) rpm 1,170 1,170 1,300 1,300
Airow (High) CFM 581 (Wet) 646 634 (Wet) 738
Outdoor unit
Intake air temperature
DB ˚F 95 47 95 47
WB ˚F — 43 — 43
Fan speed rpm 810 810 840 810
Airow CFM 1,691 1,691 1,769 1,701