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AGATWNDTE01C: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
12
10. Connect the Orange wire labeled “SEC-1/24 VAC” to the
“SEC-1/24 VAC” terminal on the Main furnace control board.
11. Connect the Black wire with the fork terminal labeled “C” on the
TKR to the “COM/24V” terminal on the thermostat strip of the
Main furnace control board.
12. Install the Twinning Kit Relay, (TKR)
a. For single-stage operation of single-stage furnaces connect the
White wire with the fork terminal labeled “W” on the TKR to the
“W” terminal on the thermostat strip of the Main furnace control
board. See
Fig. 20.
b. For staged operation of single-stage furnaces with a two-stage
thermostat, remove the fork terminal from the terminal on the
TKR and discard. The thermostat W2 lead is spliced into this
wire. Refer to Fig. 21 and Thermostat Connections section for
details.
c. For operation of two-stage furnaces with a single-stage or
two-stage thermostat, connect the White wire with the fork
terminal on the TKR to the “W/W1” terminal on the thermostat
strip of the Main furnace control board. Refer to
Fig. 19 and
Thermostat Connections section for details.
Install Secondary Twinning Kit Harness
The Secondary Twinning Kit harness is identified by a white label
marked “SECONDARY” on the label near the two pin plug of the
Auxiliary Limit Switch (ALS-S) leads. The Door Interlock Relay (ILR)
and Secondary Auxiliary Limit Switch (ALS-M) mount to the blower
housing as shown in
Fig. 15. The individual leads are labeled on the
harness. See Fig. 18. Connect the Secondary Twinning Kit harness to
furnace control board as follows:
1. Connect the Yellow wire labeled “TEST SECONDARY” to the
“TEST/TWIN” terminal on the Secondary furnace control board.
2. Connect the Black wire with the fork terminal labeled “C
SECONDARY” to the “COM/24V” terminal on the thermostat strip
of the Secondary furnace control board.
3. Connect the White wire with the fork terminal labeled “W
SECONDARY” to the “W” or “W/W1” terminal on the thermostat
strip of the Secondary furnace control board.
4. Connect the Red wire with the fork terminal labeled “R
SECONDARY” to the “R” terminal on the thermostat strip of the
Secondary furnace control board.
5. Remove the Red transformer lead from the “SEC-1/24 VAC”
terminal on the Secondary furnace control board.
6. Connect the Red wire with the piggy-back terminal labeled
“SEC-1/24 VAC” on the ILR to the “SEC-1/24 VAC” terminal on
the Secondary furnace control board.
7. Connect the Red transformer lead to the piggy back terminal of the
Red wire connected to the “SEC-1/24 VAC” terminal on the
Secondary furnace control board.
8. Remove the Blue transformer lead from the “SEC-2/COM”
terminal on the Secondary furnace control board.
9. Connect the Black wire with the piggy-back terminal labeled “C”
on the ILR to the “SEC-1/24 VAC” terminal on the Secondary
furnace control board.
10. Connect the Blue transformer lead to the piggy back terminal of the
Black wire connected to the “SEC-1/24 VAC” terminal on the
Secondary furnace control board.
NOTE: Representative drawing only, some models may vary.
Applies to both Non-Condensing & Condensing Furnaces.
Representative drawing only, some models may vary.
L12F009
NOTE:
a. Mount Twinning Kit Relay and Interlock Relay on furnace
blower housing as shown.
b. Twining Kit Relay (TKR) mounts on LH Furnace blower
housing
c. Interlock Relay (ILR) mounts on RH furnace blower housing.
Fig. 15 – Mounting Twinning Kit Relay
L11F087
Fig. 16 – Extension Harness
A190201
Fig. 17 – Main Harness
4.5”
114 mm
90 ELECTRICAL
CONNECTOR
O
RECEPTACLE
LABEL
RECEPTACLE
BLUE WIRE ASSY.
ORANGE
WIRE ASSY.
PLUG
LABEL
90 ELECTRICAL
CONNECTOR
O
WHITE
WIRE ASSY.
RED
WIRE ASSY.
PLUG
YELLOW
WIRE ASSY.
BLACK
WIRE ASSY.
MAIN
FURNACE
BLACK
WHITE
RED
REF
RELAY WIRE CONNECTION
BLACK
W
HITE
RELAY
BLACK WIRE ASSY.
WHITE WIRE ASSY.
WHITE WIRE ASSY.
RED WIRE ASSY.
BLACK WIRE ASSY.
WIRE TIE
YELLOW WIRE ASSY.
BLUE WIRE ASSY.
WIRE TIE
ORANGE WIRE ASSY.
SCREW
(2) REQ’D.
CONTROL SAFETY
BRACKET
RED WIRE ASSY.
LABEL
RECEPTACLE
RECEPT
A
CL
SEC-- 1/COM