Ctk0* Wiring; Comfort Net ™ System Advanced Features - Intertek MVM97 Series Installation Instructions Manual

CTK0* W
IRING
NOTE: Refer to Electrical Connections for 115 volt line connections to the furnace.
NOTE: A removable plug connector is provided with the control to make thermostat wire connections. This plug may be removed,
wire connections made to the plug, and replaced. It is strongly recommended
that multiple wires into a single terminal be twisted together prior to inserting
into the plug connector. Failure to do so may result in intermittent operation.
Typical 18 AWG thermostat wire may be used to wire the system components.
One hundred (100) feet is the maximum length of wire between indoor unit and
outdoor unit, or between indoor unit and thermostat. Wire runs over (100) feet
require larger gauge wire.
F -W I O
OUR IRE NDOOR AND UTDOOR
Typical ComfortNet™ wiring will consist of four wires between the indoor unit and
outdoor unit and between the indoor unit and thermostat. The required wires
are: (a) data lines, 1 and 2; (b) thermostat "R" (24 VAC hot) and
"C" (24 VAC common).
T -W O , F -W
WO IRE UTDOOR OUR
As few as two wires can be utilized between the indoor and out-
door units. For this wiring scheme, only the data lines, 1 and 2,
are needed between the indoor and outdoor units. A 40VA, 208/
230 VAC to 24VAC transformer must be installed in the outdoor
unit to provide 24VAC power to the outdoor unit's electronic con-
trol. The transformer is included in selected communicating
thermostat kits. See kit instructions for mounting and wiring
instructions. Four wires are required between the indoor unit and
thermostat. If using a communicating thermostat kit that does
not include a transformer in a dual fuel system, the acces-
sory transformer kit TFK01 should be used.
NOTE: Use of the accessory transformer is recommended if
installing a dual fuel/fossil fuel system. Failure to use the
transformer in the outdoor unit could result in over loading of the
furnace transformer.
C N ™ C
OMFORT ET OMPATIBLE
S -S A
COMPATIBLE INGLE TAGE IR
Four wires are required between the furnace and thermostat.
Two wires are required between the furnace control and single
stage air conditioner. For this system configuration, the "Y1"
terminal on the integrated furnace control becomes an output
rather than an input. The "Y1" connection to the outdoor unit is
made using both of the 4-position thermostat connectors in the CTK0* kit. Remove the red keying tabs from the on-board
connector block and position both 4-position connector such that "1", "2", "R", "C", and "Y1" positions are filled.
C N ™ S A
OMFORT ET YSTEM DVANCED
The ComfortNet system permits access to additional system information, advanced setup features, and advanced diagnostic/
troubleshooting features. These advanced features are organized into a menu structure. The menus are accessed and navigated as
described in the instructions provided with the communicating control.
48
W
IRING
I W
IRE NDOOR IRING
F N -C
URNACE WITH ON OMFORT
C
ONDITIONER
F
EATURES
40VA Transformer
(included in CTK01 kit)
208/230 VAC
System Wiring using Two-Wires between Furnace and AC/HP
and Four-Wires between Furnace and Thermostat
CTK0*
Thermostat
1 2 R C
1 2 R C
N
ET
C
System Wiring between Furnace and Non-
Communicating Compatible Single Stage Air Conditioner
CTK0*
Thermostat
1 2 R C
ComfortNet Compatible Furnace
1 2 R C
Integrated Control Module
ComfortNet Compatible AC/HP
1 2 R C
Integrated Control Module
System Wiring using Four-Wires
1 2 R C
1 2 R C
1 2 R C
24 VAC
4-Position Connectors
from CTK0*
Thermostat Kit
O
G W1 W2 Y1 Y2
Non- ComfortNet
Y
Single Stage AC
CTK0*
Thermostat
ComfortNet Compatible
Furnace Integrated
Control Module
ComfortNet Compatible
AC/HP Integrated
Control Module
ComfortNet Compatible
Furnace Integrated
Control Module
Compatible