Lennox EL16XP1 Series Unit Information page 19

THERMOSTAT INDOOR UNIT
24V POWER
R
R
C C
COMMON
W1 W1
1ST STAGE
AUXILIARY
W2
HEAT
W3
G G
INDOOR BLOWER
O
REVERSING VALVE
Y1
COMPRESSOR
(SOME CONNECTIONS MAY NOT APPLY. REFER
TO SPECIFIC THERMOSTAT AND INDOOR UNIT.)
Typical 24VAC Control Wiring Diagrams (Field Installed)
OUTDOOR UNIT
R
24V POWER
C
COMMON
W1
1ST STAGE
AUXILIARY
HEAT
O
Y1
WARNING! - ELECTRIC SHOCK HAZARD. Can cause INJURY
or DEATH. Unit must be grounded in accordance with national
and local codes.
NOTE - For use with copper conductors only. Refer to unit rating
plate for minimum circuit ampacity and maximum over current
protection size.
FIGURE 11. Typical Control Wiring
THERMOSTAT
R
2 4 V P O W E R
C
COMMON
E
EMERGENCY
HEAT
W1
1ST STAGE
AUXILIARY
HEAT
G
INDOOR BLOWER
O
REVERSING VALVE
Y1
COMPRESSOR
(SOME CONNECTIONS MAY NOT APPLY. REFER TO
SPECIFIC THERMOSTAT AND INDOOR UNIT.)
Page 19
INDOOR UNIT OUTDOOR UNIT
R
R
2 4 V P O W E R
C
C
COMMON
W1
W1
1ST STAGE
AUXILIARY
W2
HEAT
W3
G
O
Y1
EMERGENCY
HEAT RELAY
OUTDOOR
THERMOSTAT