ClareControls CH-THSTAT-W Guía de instalación descargar pdf (Pagina 8)

DCN: 2012-11-225-1 Page 8 of 19

Heat Pump HVAC System

Thermostat Connection

G Fan

W1 Aux Heat

Y1 Compressor Stage 1

R 24VAC Return

C 24VAC Common

Y2 Compressor Stage 2

O Change Over Valve

For Heat Pump systems, connect the 24R connection

to either the 24RC or 24RH

RS2

RSC

Heat Pump HVAC System Wiring

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.

24RC

24RH

W2/O

RS1

RSC

24C

Cooling 24V

Fan

Cooling stage 1

Cooling stage 2

Remote Sensor 2

Sensor shield

Humidity Relay Com

24VAC Com

24V Heating

Aux Heating

Change Over Valve

Remote Sensor 1

Sensor shield

Humidity Relay

Remote Outside Sensor

Remote Indoor Sensor

Shielded cable

Humidifier/Dehumidifier

Contact

Closure

Input

Thermostat back

Note! If you get heating

when you expected cooling,

change the C/O type to the

opposite setting.

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ClareControls CH-THSTAT-W Guía de instalación Pagina 8

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