
T8524 DELUXE ELECTRONIC THERMOSTAT
68-0202
4
5 FEET
[1.5 METERS]
YES
NO
NO
NO
M10106
Fig. 2. Typical location of thermostat.
2. Use a pencil to mark the mounting holes. See Fig. 3.
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 or wood, 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. Follow equipment manufacturer wiring
instructions when available. Refer to Fig. 13 through 18 for
typical hookups. A letter code is located near each terminal
for identification. Refer to Table 3 for terminal designations.
Table 3. Terminal Designations and Descriptions.
a
Some OEM models label the terminal for transformer common B.
Standard
Terminal
Designations
Alternate
Terminal
Designations
Typical Connection
Function
Terminal Type
B
—
Heating damper or changeover valve
Output
24V powered contact
C
B
a
, C, X1, X2
Common
Input
G
F
Fan relay
Output
24V powered contact
O
R
Cool damper or changeover valve
Output
24V powered contact
OT, OT
—
Outdoor temperature sensor (C7089B)
Input
—
R
V
24V system or heating transformer
Input
—
RC
—
24V cooling transformer
Input
—
W1
H1, R3
Stage 1 heating relay
Output
24V powered contact
W2
H2, R4, W3, Y
Stage 2 heating relay
Output
24V powered contact
Y1
C1, M, Y
Stage 1 compressor contactor
Output
24V powered contact
Y2
C2, M, Y
Satge 2 compressor contactor
Output
24V powered contact
Содержание T8524
Страница 14: ...T8524 DELUXE ELECTRONIC THERMOSTAT 68 0202 14 ...
Страница 15: ...T8524 DELUXE ELECTRONIC THERMOSTAT 68 0202 15 ...