Lennox International Inc. 43558 - Manual (Page 30)

58
58 WIRING DIAGRAMS
HEAT PUMP SYSTEMS
X - No Connection
NOTE: Common wire connection is REQUIRED.
X
Optional Jumper*
THERMOSTAT WALLPLATE TERMINALS
Y2 G C L O W2 E R Y1 B
Fan
Relay
W1
Compressor
Stage 2 System
Monitor Reversing
Valve Cool Auxiliary
Heat Emergency
Heat 24V
Supply Compressor
Stage 1 Reversing
Valve Heat
Common
Some terminals may not be used
*Add jumper between W2 and E
on systems without an E wire.
41653_model43558.pmd
59
59
MULTI-STAGE SYSTEMS
X - No Connection
NOTE: Common wire connection is REQUIRED.
X
THERMOSTAT WALLPLATE TERMINALS
Y2 G C L O W2 R Y1 B
Fan
Relay
W1
System
Monitor 24V
Supply
Common
Some terminals may not be used
Cool
Stage 2 Cool
Damper Heat
Stage 2 Heat
Damper
E
Heat
Stage 1 Cool
Stage 1