Page 59
XP21 SERIES
XP21 Start−Up and Performance Checklist
Customer
Address
Indoor Unit Model
Serial
Outdoor Unit Model
Serial
Solar Module Mfg and Model
Serial
Notes:
START−UP CHECKS
Refrigerant Type:
Rated Load Amps
Actual Amps
Rated Volts
Actual Volts
Condenser Fan Full Load Amps
Actual Amps:
COOLING MODE
Vapor Pressure:
Liquid Pressure:
Supply Air Temperature:
Ambient Temperature:
Return Air Temperature:
HEATING MODE
Vapor Pressure:
Liquid Pressure:
Supply Air Temperature:
Ambient Temperature:
Return Air Temperature:
System Refrigerant Charge (Refer to manufacturer’s information on unit or installation instructions for required subcooling and approach
temperatures.)
Subcooling:
A
B
=
SUBCOOLING
Saturated Condensing Temperature (A)
minus
Liquid Line Temperature (B)
Approach:
A
B
=
APPROACH
Liquid Line Temperature (A)
minus
Outdoor Air Temperature (B)
Indoor Coil Temp. Drop (18 to 22°F)
A
B
=
COIL TEMP DROP
Return Air Temperature (A)
minus
Supply Air Temperature (B)
