8
G O Y2 Y1 RC C RH W1 W2 E B
MULTI-STAGE FURNACE HEAT
AND COOLING HOOKUP
FAN
COOLING
XFMR
HEATING
XFMR
HEATER
AIR CONDITIONER
STAGE 2
COMPRESSOR
STAGE 1
COMPRESSOR
AC LINE
AC LINE
OPTIONAL COMMON
ALLOWS USE OF
SYSTEM POWER
EITHER SECOND
STAGE MAY BE
OMITTED
[1]
[2]
NOTES:
STAGE
1
STAGE
2
COOL
COMMON
HEAT
COMMON
TYPICAL INSTALLER SETUP:
SYSTEM TYPE = FURNACE
[01]
HEAT STAGES
=(MATCH SYSTEM)
[02]
COMPRESSOR STAGES
= (MATCH SYSTEM)
[03]
MODES = Ht-Off-Cl-Auto
[04]
HEAT FAN CONTROL
= ELECTRIC
[09]
G O Y2 Y1 RC C RH W1 W2 E B
TYPICAL MULTI-STAGE STAGE HEAT PUMP WITH
OPTIONAL AUX AND EMERGENCY HEAT
(2 OR 3 STAGES HEAT, 2 STAGES COOL)
FAN
SYSTEM
XFMR
AUX/EM
HEAT
REVERSING
VALVE
HEAT PUMP
STAGE 2
COMPRESSOR
STAGE 1
COMPRESSOR
AC LINE
JUMPER
PROVIDED
SYSTEM COMMON
OPTIONAL COMMON
ALLOWS USE OF
SYSTEM POWER
USE "B" OR "O" BUT
NOT BOTH
AUX HEAT AND
EMERGENCY HEAT
ARE OPTIONAL
[1]
[2]
[3]
NOTES:
TYPICAL INSTALLER SETUP:
SYSTEM TYPE = HEAT PUMP
[01]
HEAT STAGES
= MATCH SYSTEM
[02]
COMPRESSOR
STAGES = MATCH SYSTEM
[03]
MODES = Ht-Off-Cl-
EmHt-Auto
[04]
HEAT FAN CONTROL
= ELECTRIC
[09]
