Intertek ACVC96 Service Instructions Manual page 52

SYSTEM OPERATION
NOTE: Use of an accessory transformer is recommended if
installing a dual fuel system. Failure to use the transformer
in the outdoor unit could result in overloading of the furnace
transformer.
When using a CTK03A*or CTK04 thermostat, the included
transformer must be used.
If your communicating thermostat kit does not include a
transformer, an accessory kit is available separately by
ordering part TFK01.
40VA Transformer
24 VAC
208/230 VAC
S W T
YSTEM IRING USING WO
F -W F
OUR IRES BETWEEN URNACE AND
C N F
OMFORT ET URNACE WITH
S S A C
INGLE TAGE IR ONDITIONER
Four wires are required between the furnace and thermo-
stat. Two wires are required between the furnace control
and single stage air conditioner. For this system configura-
tion, the "Y1" terminal on the integrated furnace control be-
comes an output rather than an input.
52
1 C CTK0***
Thermostat
2 R
ComfortNet Compatible
1 2 R C
Furnace Integrated
Control Module
ComfortNet Compatible
1 2 R C
AC/HP Integrated
Control Module
-W F
IRES BETWEEN URNACE AND
T
HERMOSTAT
N -C N A/C
ON OMFORT ET
ComfortNet™ System
1 C
CTK0***
Thermostat
2 R
1 2 R C G W1 W2 Y1
C
S W
YSTEM IRING BETWEEN
C S S
OMPATIBLE INGLE TAGE
C N S A
OMFORT ET YSTEM DVANCED
The ComfortNet system permits access to additional sys-
tem information, advanced setup features, and advanced di-
agnostic/troubleshooting features. These advanced features
are organized into a menu structure.
ComfortNet
Compatible
O
Y2
Furnace Integrated
Control Module
Non-ComfortNet Compatible
Y
Single Stage AC
F N -C
URNACE AND ON OMFORT
A C
IR ONDITIONER
F
EATURES
N
ET