Installation guide

BLOWER OFF-DELAY
J2 JUMPER
24-V THERMOSTAT
TERMINALS
3-AMP FUSE
LED OPERATION &
DIAGNOSTIC LIGHT
115-VAC(L2)N EL
CONNECTIONS
TWINNING AND/OR
COMPONENTTEST
TERMINAL
L2 ____
TERMINAL
1.0 AMP MAX.)
c
;PARE SPARE-2 SPARE-3
L
DD
PL2 1
115 VAC (L1) LINE
VOLTAGE CONNECTION
Fig. 25 - Furnace Control
HUMIDIFIER TERMINAL
(24-VAC 0.5 AMP MAX.)
TRANSFORMER 24-VAC
CONNECTIONS
PL1 -LOW VOLTAGE MAIN
HARNESS CONNECTOR
PL2-HOT SURFACE
IGNITER & INDUCER
MOTOR CONNECTOR
Al1619
.... FIELD 24-V WIRING
.... FIELD 115-, 208/230-, 460-VWIRING
-- FACTORY 24-V WIRING
FACTORY 115-V WIRING
NOTE 2
FIVEWIRE @@
THREE-WIRE --_ _ i i
HEATING-ONLY _ "_ _--',
BLOWER DOOR SWITCH _ _
@_J '', ,
I I
I I
C _ ----t--J
O I
N I
I
T I
R@ L
I
115-V FIELD- AUXILIARY O _---
SUPPLIED J-BOX L @
DISCONNECT @
24-V
TERMINAL
BLOCK
FURNACE
I
I-T
'I
NOTE 1 I
NOTES: 1.
2.
3.
THERMOSTAT
TERMINALS FIELD-SUPPLIED
DISCONNECT
@ii_il
_ _, O--H--Q
CONDENSING
UNIT
TWO
WiRE
208/230-OR
460-V
THREE
PHASE
208/230-V
SINGLE
PHASE
ConnectY-terminal in furnace as shown for proper blower operation.
Some thermostats require a "C" terminal connection as shown.
If any of the original wire, as supplied, must be replaced, use
same type or equivalent wire.
A99440
Fig. 26 - Heating and Cooling Application Wiring Diagram with Single Stage Thermostat
23