Typical Unit Parts Arrangement - Lennox XP21 Series Installation Instructions Manual

Typical Unit Parts Arrangement

WIRE TIE
OUTDOOR AMBIENT
TEMPERATURE
SENSOR (RT13)
DISCHARGE LINE
DISCHARGE LINE
TEMPERATURE SENSOR
(RT28)
MUFFLER
REVERSING
VALVE
VAPOR VALVE
AND GAUGE
PORT
LIQUID VALVE AND
GAUGE PORT
TRUE SUCTION LINE
PORT
LIQUID LINE BI−FLOW
FILTER DRIER
CONTACTOR
HIGH VOLTAGE FIELD
EXPANSION VALVE
COMPRESSOR
HIGH PRESSURE
SWITCH (S4)
LOW PRESSURE
SWITCH (S87)
Figure 1. Plumbing, Switches and Sensor Components
GROUND LUGS
1 POLE (K1−1)
CONNECTIONS
HEAT PUMP CONTROL
(A175)
COIL TEMPERATURE SENSOR (RT21)
ON RETURN BEND, 12 TUBES UP FROM
CHECK
CRANKCASE HEATER (HR1)
(BELLY BAND)
CRANKCASE HEATER THERMOSTAT (S40)
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FAN MOTOR CONTROL (A177)
CAPACITOR (C12)
XP21−024 AND −036
BOTTOM (11.50' UP)
XP21−048 AND −060
COIL TEMPERATURE
SENSOR (RT21) ON
RETURN BEND, 24
TUBES UP FROM
BOTTOM (23.50' UP)
DISTRIBUTOR
XP21 SERIES