Watts Tekmar 563, Installation Manual

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• The Heat On symbol is shown on the display when the thermostat is heating.
• Heating for freeze protection is provided whenever the air or floor temperature falls below
40°F (4.5°C), regardless of operating mode.
• The Cool On symbol is shown on the display when the thermostat is cooling.
The thermostat supports two heating system types: 1) conventional, or 2) heat pump.
Conventional Systems
A conventional heating system includes: furnaces, air conditioners, hydronic
heating systems with baseboards, radiant floors, or fan coils and electric heating.
The thermostat supports up to two heating stages, two cooling stages, a fan and
two accessory relays.
Equipment Setting 1H/1C 1H/2C 2H/1C 2H/2C
First stage heating W1 W1 W1 W1
Second stage heating - - W2 W2
First stage cooling Y1 Y1 Y1 Y1
Second stage cooling - Y2 - Y2
Fan G
Accessory 1 Choice of: Humidifier, Dehumidifier, HRV/ERV
Accessory 2 Choice of: Humidifier, Dehumidifier
Heat Pump Systems
A heat pump system may include additional heat sources as backup. The
thermostat supports up to four heating stages, two cooling stages, a reversing
valve, a fan and one accessory relay.
Equipment Setting 1HP 1HP/
1Aux 1HP/
2Aux 2HP 2HP/
1Aux 2HP/
2Aux
First stage heating Y1 Y1 Y1 Y1 Y1 Y1
Second stage heating - W1 W1 Y2 Y2 Y2
Third stage heating - - W2 - W1 W1
Fourth stage heating - - - - - W2
First stage cooling Y1 Y1 Y1 Y1 Y1 Y1
Second stage cooling - - - Y2 Y2 Y2
Fan G
Accessory 1 Choice of: Humidifier, Dehumidifier, HRV/ERV ventilator
Accessory 2 Reversing valve O relay remains closed during cooling.
Reversing valve B relay remains closed during heating.
Sequence of Operation
Heating and Cooling Operation
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