Wiring; Mounting - Trane XT302C Installer's Manual

XT302C DELUXE PROGRAMMABLE HEAT-COOL THERMOSTAT
WIRES
THROUGH WALL
WALL
ANCHORS
(2)
Fig. 2. Mounting the wallplate.
2. Use a pencil to mark the mounting holes. See Fig. 2.
3. Remove the wallplate from the wall and drill two 3/16
inch holes in the wall (if drywall) as marked. For firmer
material such as plaster, drill two 7/32 inch holes.
Gently tap anchors (provided) into the drilled holes until
flush with the wall.
4. Position the wallplate over the holes, pulling wires
through the wiring opening.
5. Loosely insert the mounting screws into the holes.
6. Tighten mounting screws.

WIRING

All wiring must comply with local electrical codes and
ordinances. Refer to Fig. 3 for typical hookup diagram. A letter
code is located near each terminal for identification.
WARNING
Electronic Shock or Equipment Damage Hazard.
Can shock individuals or cause equipment
damage.
Disconnect power before wiring to prevent electrical
shock or equipment damage.
1. Loosen the terminal screws on the wallplate and
connect the system wires. See Fig. 4.
NOTE: Use 18 gauge, color-coded thermostat cable
for proper wiring.
2. Securely tighten each terminal screw.
3. Push excess wire back into the hole.
4. Plug the hole with nonflammable insulation to
prevent drafts from affecting the thermostat.
Pub. No. 18-HD25D7-5
69-1213—1 (T8624)
WALL

MOUNTING

HOLES
MOUNTING
SCREWS
M15044
2
THERMOSTAT
B Y1 Y2 W1 W2
COMPRESSOR HEAT
CONTACTOR 2 STAGE 2
HEAT
COMPRESSOR
STAGE 1
CONTACTOR 1
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
Fig. 3. Typical hookup of XT302C in a heat cool system.
FOR WRAPAROUND
INSERTION STRIP
7/16 IN. (11 MM).
Fig. 4. Proper wiring technique.
Mounting Thermostat
1. Engage tabs at the top of the thermostat and wallplate.
See Fig. 5.
2. Press lower edge of case to close and latch.
NOTE: To remove thermostat from wall, first pull out at
bottom of thermostat; remove top last.
A.
ENGAGE TABS
AT TOP OF
THERMOSTAT
AND WALLPLATE.
B.
PRESS LOWER
EDGE OF CASE
TO LATCH.
Fig. 5. Mounting thermostat on wallplate.
G R H H OT
OUTDOOR
HUMIDISTAT
TEMPERATURE
OPENS ON RISE
SENSOR
TAYSTAT253A
TAYSENS100A
L1
FAN
(HOT)
L2
TRANSFORMER
FOR STRAIGHT
INSERTION STRIP
5/16 IN. (8 MM).
M4826
M17151
OT
1
M17116