STS11 Touchscreen Programmable Thermostat
1. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2. FACTORY INSTALLED JUMPER.
3. OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE
SEPARATE FROM THE THERMOSTAT CABLE.
Fig. 15. Typical hookup of cool only system(1C conventional).
28
STS11 Touchscreen Programmable Thermostat
CONVENTIONAL
S1 S2 C R RC W Y G
OUTDOOR/INDOOR
TEMPERATURE
SENSOR
3
COMPRESSOR
CONTACTOR
OPTIONAL
24VAC
COMMON
CONNECTION
R
C 1
2
FAN RELAY
29
STS11 Touchscreen Programmable Thermostat
1. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2. FACTORY INSTALLED JUMPER.
3. "O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B" IN THE INSTALLER SETUP.
4. OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE
SEPARATE FROM THE THERMOSTAT CABLE.
Fig. 16. Typical hookup of single-stage heat pump without auxiliary/backup heat
(1H/1C heat pump).
HEAT PUMP
S1 S2 C R RC W Y G
S1 S2 C R RC L Y G
O/B
OUTDOOR/INDOOR
TEMPERATURE
SENSOR
4
2
R
C 1
CHANGEOVER
VALVE
COMPRESSOR
RELAY
FAN RELAY
OPTIONAL
24VAC
COMMON
CONNECTION
3