Lennox XC21

Page 3
XC21 SERIES
Typical Unit Parts Arrangement
LIQUID LINE FILTER
DRIER (SINGLE FLOW)
LIQUID LINE SERVICE
VALVE PORT
SUCTION LINE SERVICE
VALVE PORT
FIELD CONNECTION FOR
SUCTION LINE
RT28 HIGH DISCHARGE LINE
TEMPERATURE SENSOR
S87 LOW PRESSURE
SWITCH
S4 HIGH PRESSURE SWITCH
S40 CRANKCASE THERMOSTAT
COMPRESSOR HARNESS
FIELD CONNECTION FOR
LIQUID LINE
GROUND LUG
HIGH VOLTAGE FIELD
CONNECTIONS
CONTACTOR−1
POLE (K1)
A175 MAIN CONTROL
CAPACITOR (C12)
A177 FAN MOTOR CONTROL
WIRE TIE
RT13 OUTDOOR
AMBIENT
TEMPERATURE
SENSOR
FAN MOTOR SURGE
PROTECTION
SECOND GROUND LUG FOR SOURCESOURCE
®
Figure 1. Plumbing, Switches and Sensor Components