Answer Posted / ariel

COP = cooling capacity / compressor power; COP = 2.5 for
typical Direct Expansion AC units. Substitute the COP
value, 2.5 = Ton cooling/ kWcomp; or kWcomp = Ton
cooling / 2.5. Multiply Ton by 3.517 to convert it into kW
cooling. kWcomp = (3.517 / 2.5) x Ton; kWcomp = 1.4 x
Ton. This kWcomp is approximately equal to the system kW
based on AC units catalogs. MCA = (1.4/0.8 x Ton) / Voltage-
phase or MCA = 1.75 x Ton / Voltage-phase

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