Fig. 13—Interlock Relay Wiring Layout
A05044
FOUR WIRE
TWO-WIRE
HEATING ONLY
TWO
WIRE
W
BLK BLK
WHT WHT
GND
115V FIELD-
SUPPLIED
FUSED
DISCONNECT
NOTE: Connect Y-terminal as
shown for proper operation.
FURNACE
AUXILIARY
J-BOX
FURNACE
24V
TERMINAL BLOCK
THERMOSTAT
TERMINALS
INTERLOCK RELAY
GND
W
R
R
G
G
C
Y
Y
3
2
1
1
4
7
2
5
8
3
6
9
CONDENSING
UNIT
9-PIN AMP PLUG
120V FROM
HRV
Fig. 14—Push Button Timer Wiring Layout
A98386
3
4
5
I
OC
OL
YELLOW
BLACK
RED
ELECTRONIC CONTROL
BOARD
BACK OF PUSH BUTTON SWITCH
J3
J1
6
7
8
9
41 7
52 8
63 9
BLACK – (J3-4)
COMMON
TERMINAL
STRIP
YELLOW – (J3-3)
INDICATOR
TERMINAL STRIP
RED – (J3-5)
SWITCH
TERMINAL STRIP
BLACK – COMMON, (J3-4)
YELLOW – INDICATOR, (J3-3)
THE WIRES FROM THE SWITCH
RED – SWITCH, (J3-5)
(OC)
(I)
(OL)
(OPTIONAL)
60 MINUTE TIMER
(OPTIONAL)
PUSH BUTTON SWITCHES
(5 SWITCHES MAXIMUM)
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