5
Typical 1H/1C system: 1 transformer Typical 1H/1C system: 2 transformers
Wiring diagrams
Factory-installed jumper. Remove for 2-transformer systems only.
• Provide Power Supply disconnect means and overload protection as required.
In Installer Setup, set system type to
2Heat/1Cool Conventional.
SINGLE STAGE GAS FURNACE – SINGLE STAGE COOLING
SINGLE STAGE
AIR CONDITIONER
SINGLE STAGE
GAS FURNACE
FACTORY INSTALLED JUMPER.
24VAC HOT
24VAC
602 COMFORT CONTROL
TERMINAL BLOCK
FAN
COOLING-1st
HEATING-1st
HEATING-2nd
COOLING-2nd
SINGLE STAGE OIL FURNACE
– SINGLE STAGE COOLING
SINGLE STAGE
AIR CONDITIONER
SINGLE STAGE
OIL FURNACE
24VAC HOT
24VAC
602 COMFORT CONTROL
TERMINAL BLOCK
FAN
COOLING-1st
HEATING-1st
HEATING-2nd
COOLING-2nd
REMOVE FACTORY INSTALLED JUMPER.
24VAC HOT
24VAC
602 COMFORT CONTROL
TERMINAL BLOCK
TWO STAGE GAS FURNACE – SINGLE STAGE COOLING
SINGLE STAGE
AIR CONDITIONER
FAN
COOLING
HEATING-1st
HEATING-2nd
TWO STAGE
GAS FURNACE
FACTORY INSTALLED JUMPER.
Typical 2H/1C system: 1 transformer
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