United CoolAir VertiCool Classic Series, Engineering Manual

Page: 12 / 33

Engineering Guide
VertiCool ™ Classic
12 Subject to change without notice. 20.10-TD (0816)
Electrical Data
Examples
Cooling Only:
Package Unit
NOTE : Largest motor amps may not always be the compressor�
MCA = (1�25 x largest motor amps) + the sum of the remaining motors
MOP = (2�25 x largest motor amps) + the sum of remaining motors
Dual Compressors RLA = 19�2 each
Evap � Blower Motor FLA = 4�8
Cond � Blower Motor FLA = 9�2
MCA = (1�25 x 19�2) + 19�2 + 4�8 + 9�2 = 57�2
MOP = (2�25 x 19�2) + 19�2 + 4�8 + 9�2 = 76�4
Rounded Down to 75
Condensing Section w/ Compressor(s)
NOTE : Largest motor amps may not always be the compressor�
MCA = (1�25 x largest motor amps) + the sum of the remaining motors
MOP = (2�25 x largest motor amps) + the sum of remaining motors
Dual Compressors RLA = 19�2 each
Cond � Blower Motor FLA = 13�6
MCA = (1�25 x 19�2) + 19�2 + 13�6 = 56�8
MOP = (2�25 x 19�2) + 19�2 + 13�6 = 76
Rounded Down to 75
Evaporator Only Section
MCA = (1�25 x Evap� Blower Motor Amps)
MOP = (2�25 x Evap� Blower Motor Amps)
Evap � Blower Motor FLA = 4�8
MCA = (1�25 x 4�8) = 6�0
MOP = (2�25 x 4�8) = 10�8
Rounded Down to 10
Condenser Only Section w/o Compressor(s)
MCA = (1�25 x Cond� Blower Motor Amps)
MOP = (2�25 x Cond� Blower Motor Amps)
Cond � Blower Motor FLA = 9�2
MCA = (1�25 x 9�2) = 11�5
MOP = (2�25 x 9�2) = 20�7
Rounded Down to 20
Evaporator Section w/ Compressor(s)
NOTE : Largest motor amps may not always be the compressor�
MCA = (1�25 x largest motor amps) + the sum of the remaining motors
MOP = (2�25 x largest motor amps) + the sum of remaining motors
Dual Compressors RLA = 23�2 each
Evap � Blower Motor FLA = 13�6
MCA = (1�25 x 23�2) + 23�2 + 13�6 = 65�8
MOP = (2�25 x 23�2) + 23�2 + 13�6 = 89
Rounded Down to 85