Wiring Diagram - SystemAir fantech SER 450 Manuel D'installation

WIRING DIAGRAM

WIRING DIAGRAM TO
FURNACE
FOR A FURNACE
CONNECTION TO
A COOLING SYSTEM:
As per building codes and installation requirements for combustion appliances:
Air return ducts, or openings for air return, should not be placed in enclosed spaces containing combustion
appliances that are subject to spillage.
(CONT'D)
Standard Furnace Interlock Wiring
W
FOUR
WIRE
TWO WIRE
heating only
W
R
G
C
Y
FURNACE
24-VOLT
TERMINAL BLOCK
TWO
WIRE
Standard Furnace Interlock Wiring (w/Damper)
W
FOUR
WIRE
TWO WIRE
heating only
W
R
G
C
Y
FURNACE
24-VOLT
TERMINAL BLOCK
TWO
WIRE
THERMOSTAT
TERMINALS
R G
Y
COOLING SYSTEM
THERMOSTAT
TERMINALS
R G
Y
COOLING SYSTEM
1
CONTROL RELAY
(TERMINAL LABELING MAY VARY)
RV-CTRL
24VAC
RV-CTRL
24VAC
C
3
COIL
SHUTOFF SHUTOFF
DAMPER DAMPER
17
R
fantech