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Page 49
XC17 SERIES
XC17 Start−Up and Performance Checklist
Suction 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 Ċ B = SUBCOOLING
Saturated Condensing Temperature (A)
minus Liquid Line Temperature (B)
Approach:
A Ċ B = APPROACH
Liquid Line Temperature (A)
minus Outdoor Air Temperature (B)
Indoor Coil Temperature Drop (18 to 22°F) A Ċ B = COIL TEMP DROP
Return Air Temperature (A)
minus Supply Air Temperature (B)