Electronic Thermostat Installation - York T2GY Installer's Manual

Electronic Thermostat Installation

Installation
Position the thermostat subbase against the wall so that
it is level and the thermostat wires protrude through the
subbase. Mark the position of the subbase mounting holes
and drill holes with a 3/16 in. bit. Install anchors and secure
base to the wall. Thermostat wire must be 8 conductor 18
AWG wire. Strip the wires back 1/4 in. (longer strip lengths
may cause shorts) and insert the thermostat wires into the
connector as shown in the Thermostat Wiring diagram.
Tighten the screws to ensure good connections. The
thermostat has the same type of connectors, requiring the
same wiring. See instructions enclosed in the thermostat for
detailed installation and operation information.
Other Thermostats
The unit is compatible with virtually any 24VAC thermostat.
However, the multi-stage nature of this product requires a
3-stage heating/2-stage cooling type thermostat.
NOTE: DIP switch SW2-8 is required to be in
the "OFF" position for the control to operate
with FaultFlash or ComforTalk thermostats.
SW2-8 in the "ON" position configures the
control to operate with typical thermostats
(continuous lockout signal). There must be
a wire connecting Y2 on the microprocessor
controller to 2nd stage compressor on the
thermostat for proper operation.
Thermostat Wiring
R
C
Y1
Y2
W
O
G
L
15
T2GY INSTALLER'S GUIDE
24VAC (Hot)
24VAC (Common)
Compressor (1st Stage)
Compressor (2nd Stage)
Aux. Heat
Reversing Valve
Blower Relay
System Monitor