PS4000/PS5000 Touchscreen Programmable Thermostat
1. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
PS5000 ONLY
2. FACTORY INSTALLED JUMPER.
3. OUTDOOR SENSOR REQUIRED IN SYSTEM WITH FOSSIL FUEL BACK-UP 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 24V AC COMMON WHEN USING L. THE TERMINAL IS SHOWN AS EQUIPMENT MONITOR, CAN ALSO BE
USED AS A 24V AC OUTPUT. SEE HEAT PUMP SECTION ON PAGE 90.
6. "O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B" IN THE INSTALLER SET-UP.
Figure 20. Typical hookup of single-stage heat pump with auxiliary/back-up heat
(2H/1C heat pump).
32
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
24V AC
COMMON
CONNECTION
6
5
COMPRESSOR
RELAY
EMERGENCY
HEAT RELAY
HEAT 2 RELAY
(AUXILIARY HEAT)
EQUIPMENT
MONITOR