HVAC Total Power Input in kW
HVAC Total Power Input in kW
(OP)
The client has asked me to provide the total power input in kW of a Package AC.
The electrical data for the Package AC are: MCA = 63.8 Amps ; MOCP = 90 Amps
Compressor RLA (2 ea) = 22.4 Amps & LRA = 150 ; Fan Motor = 1.7 Amps.
Note: Voltage is 460-3ph-60Hz.
Based on the above data, How can i compute the Package AC total power in kW?
The electrical data for the Package AC are: MCA = 63.8 Amps ; MOCP = 90 Amps
Compressor RLA (2 ea) = 22.4 Amps & LRA = 150 ; Fan Motor = 1.7 Amps.
Note: Voltage is 460-3ph-60Hz.
Based on the above data, How can i compute the Package AC total power in kW?






RE: HVAC Total Power Input in kW
44.8 Amps plus 1.7 Amps = 46.5 Amps (Assuming a single condenser and fan. Adjust the formula if there are two fans.)
46.5 Amps x 460 Volts x Root 3 = 37 KVA.
Assume a combined efficiency and power factor of 85% to 90%
@ 85% 37 KVA x .85 = 31.5 kW
@ 90% 37 KVA x .90 = 33.3 kW
Bill
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"Why not the best?"
Jimmy Carter
RE: HVAC Total Power Input in kW
RE: HVAC Total Power Input in kW
Bill
--------------------
"Why not the best?"
Jimmy Carter