Heat Pump Hvac System Wiring - Z-Wave T100R Installation Manual

Heat Pump HVAC System Wiring

Cooling 24V
Cooling stage 1
Cooling stage 2
Remote Sensor 2
Remote Sensor 2
Sensor shield
Humidity Relay Com
* Not used on this version
See Humidity enabled Product TZB45H
Shielded cable
Remote Outside Sensor
Thermostat Setup:
Heat Pump HVAC Systems
To set the HVAC system type, go to the Thermostat Info screen
and press Setup button.
1. Type. Set the HVAC System Type: set to Heat Pump
2. Fan Type. Automatically set for heat pump systems. Ignore this setting.
3. C/O type. Change Over (reversing) Valve Type. Heat pumps change from heating to cooling by reversing operation.
You must configure the thermostat's changeover valve setting to work correctly with your HVAC system.
Check your system information to be sure and note the color of original thermostat wire and the terminal it was connected to.
No matter what the old stat connection was (O or B), connect the wire to the thermostats W2/O terminal.
The setting of the C/O Type will set the correct system operation.
For change over with cool systems (Orange wire, O terminal): set C/O type to w/cool (most common and default setting)
For change over with heat systems (Brown wire, B terminal): set C/O type to w/heat
4. 2nd Stage Heat. Enable second stage heating outputs
If you have a single stage heating system, leave this set to N
If you have a 2 stage heating system, set to Y to enable.
5. Aux Heat (HP). If you have auxiliary heat strips, set this to Y to enable.
6. 2nd Stage Cool. Enable second stage cooling outputs
If you have a single stage cooling system, leave this set to N.
If you have a two stage cooling system, set to Y to enable.
DCN: 140-01773-01
Thermostat back
For Heat Pump systems, connect the 24R connection
to either the 24RC or 24RH
24RC
G
Fan
Y1
Y2
RS2
RS2
RSC
HC
*
24C 24VAC Com
24RH
24V Heating
W1
Aux Heating
W2/O
Change Over Valve
RS1
Remote Sensor 1
RS1
Remote Sensor 1
RSC
Sensor shield
H1
*
Humidity Relay
Shielded cable
Remote Indoor Sensor
Heat Pump HVAC System
Thermostat Connection
C 24VAC Common
R 24VAC Return
W1 Aux Heat
O Change Over Valve
G Fan
Y1 Compressor Stage 1
Y2 Compressor Stage 2
Note! If you get heating
when you expected cooling,
change the C/O type to the
opposite setting.
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