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13. Operating Limits - Heating
HEATING
Difference
Dry Bulb
Temp. C°
Wet Bulb
Temp. C°
Indoor temperature
Maximum
27
-
Outdoor temperature
Maximum
Minimum
24
2
18
1
MAIN POWER SUPPLY
System
Model
Nominal
Power Supply
V/PH/HZ
Minimum
Voltage
Maximum
Voltage
53QDMT12-718
220-240/1/50 198 254
53QDMT18-718
53QDMT24-718
53QDMT30-718
53QDMT36-718
53QDMT42-718
53QDMT36-518
380-420/3/50 342 462
53QDMT42-518
53QDMT48-518
53QDMT60-518
NOTES:
* When the unit is operated above or below these limits for a long time,
system diagnostics may detect a malfunction and the unit will not operate properly.
** During heat pump operation, the system will undergo several defrost cycles to eliminate ice that
might possibly collect on the outdoor unit in very low ambient temperatures.
After completion of defrost cycle, the system will normally operate
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