Lennox XC21 Series User Manual

Page 51
XC21
Start−Up and Performance Checklist
Customer Address
Indoor Unit Model Serial
Outdoor Unit Model Serial
Notes:
START UP CHECKS
Refrigerant Type:
First Stage: Rated Load Amps Actual Amps Rated Volts Actual Volts
Second Stage: Rated Load Amps Actual Amps Rated Volts Actual Volts
Condenser Fan Full Load Amps Actual Amps: First Stage Second Stage
COOLING MODE
Suction Pressure: First Stage: Second Stage:
Liquid Pressure: First Stage: Second Stage:
Supply Air Temperature: First Stage: Second Stage:
Temperature: Ambient: Return Air:
System Refrigerant Charge (Refer to manufacturer’s information on unit or installation instructions for required subcooling and approach tempera-
tures.)
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 Temperature Drop (18 to 22°F) A

B
=
COIL TEMP DROP
Return Air Temperature (A)
minus Supply Air Temperature (B)

Lennox XC21 Series Specifications

General

SEER Rating	Up to 21.00
Sound Rating	As low as 69 dB
Energy Star Certified	Yes
Refrigerant	R-410A
Cooling Capacity	2 to 5 tons
Warranty	10-year limited warranty on compressor and covered components