Lennox MPA012S4S-1L Service Manual page 72

Single Zone Refrigerant Cycle Diagram
N I D O O R
Indoor Coil
T1 Room temp.
sensor
T2 Evaporator
temp. sensor
CAPILIARY TUBE
LIQUID SIDE
2-WAY VALVE
GAS SIDE
3-WAY VALVE Accumulator
O U T D O O R
Electronic
CAPILIARY TUBE
expansion valve
T4 Ambient
temp. sensor
4-WAY VALVE
T5 Discharge
temp. sensor
COOLING
Compressor
HEATING
Lennox Mini-Split Service Manual / Page 72
T3 Condenser
temp. sensor
Outdoor Coil