ControlTemp CT2001 - Powering the Thermostat

CT2001 Touchscreen Programmable Thermostat
1. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2. FACTORY INSTALLED JUMPER.
3. OUTDOOR SENSOR REQUIRED IN SYSTEM WITH FOSSIL FUEL BACKUP HEAT THAT IS NOT USING AN EXTERNAL FOSSIL FUEL
KIT.
4. OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE
SEPARATE FROM THE THERMOSTAT CABLE.
5. MUST CONNECT THE 24VAC COMMON WHEN USING L. THE TERMINAL IS SHOWN AS EQUIPMENT MONITOR, CAN ALSO BE
USED AS A 24VAC OUTPUT. SEE HEAT PUMP SECTION ON PAGE 90.
6. "O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B" IN THE INSTALLER SETUP.
Fig. 21. Typical hookup of multistage heat pump with auxiliary/backup heat
(3H/2C heat pump).
34
3
4
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
6
5
COMPRESSOR 2
EMERGENCY
HEAT RELAY
HEAT 2 RELAY
(AUXILIARY HEAT)
EQUIPMENT
MONITOR
COMPRESSOR 1