T8600D, T8601D AND T8602D CHRONOTHERM
®
IV DELUXE PROGRAMMABLE THERMOSTATS
68-0164—1
25
L1
(HOT)
L2
M10348
FAN
RELAY
YG
THERMOSTAT
RC
HEAT
RELAY
RW
L1
(HOT)
L2
COMPRESSOR
CONTACTOR
HEATING
TRANSFORMER
COOLING
TRANSFORMER
B
HEAT
DAMPER
COOL
DAMPER
O
2
1POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
JUMPER RC TERMINAL TO R TERMINAL WHEN INSTALLED ON A
ONE TRANSFORMER SYSTEM.
CAN BE USED FOR CHANGEOVER VALVE ON SINGLE-STAGE HEAT
PUMP SYSTEMS.
AVAILABLE ON SELECT MODELS. OT WIRES MUST HAVE A
SEPARATE CABLE FROM THE THERMOSTAT CABLE.
T8600D MODELS REQUIRE POWER TO R TERMINAL AT ALL TIMES.
2
3
3
1
1
3
4
OTOT
OUTDOOR
TEMPERATURE
SENSOR
4
4
5
5

L1

(HOT)

L2

M10357

FAN

RELAY

GC

THERMOSTAT

HEAT

RELAY

RW

TRANSFORMER

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND

OVERLOAD PROTECTION AS REQUIRED.

NOT AVAILABLE ON "A" MODELS.

1

2

1

2

Fig. 17. Typical hookup of T8600 or T8602 in heat andcool system with two transformers.Fig. 18. Typical hookup of T8601 in heat only application.Fig. 19. Typical hookup of T8601 in heatand cool system with one transformer.Fig. 20. Typical hookup of T8601 in heatand cool system with two transformers.