CT1001/CT1002 Touchscreen Programmable Thermostat
1. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2. FACTORY INSTALLED JUMPER.
3. MUST CONNECT THE 24VAC COMMON W HEN USING L. THE TERMINAL IS SHOW N AS EQUIPMENT MONITOR, CAN ALSO BE
USED AS A 24VAC OUTPUT. SEE "HEAT PUMP LED" SECTION FOR MORE INFORMATION.
4. "O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B" IN THE INSTALLER SETUP.
5. OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. W IRES MUST HAVE A CABLE SEPARATE
FROM THE THERMOSTAT CABLE.
Fig. 19. Typical hookup of multistage heat pump with no auxiliary/backup heat
(2H/2C heat pump).
32
HEAT PUMP
S1 S2 C R RC W W2 Y2 Y G
S1 S2 C R RC E L Y2 Y G
O/B AUX
OUTDOOR/INDOOR
TEMPERATURE
SENSOR
2
R
C 1
CHANGEOVER
VALVE
FAN RELAY
OPTIONAL
24VAC
COMMON
CONNECTION
5
COMPRESSOR 2
COMPRESSOR 1
4
3