Install Instructions

10
Essential Settings:
Accessory Relay 1 or 2 = Dehumidifier
Dehumidifier Type = DX Coil
The thermostat operates the cooling system and runs the system fan at low speed to dehumidify
the air.
Dehumidification using a DX Coil
Air
Handling
Unit
HRV / ERV
Ventilator
The Heat Recovery Ventilator (HRV) or Energy Recovery Ventilator (ERV) operates to improve
indoor air quality and recovers heat from exhaust air.
Essential Settings:
Accessory Relay 1 = Ventilation
HRV/ERV Ventilator
Humidifier
The thermostat operates a humidifier to increase relative humidity.
Humidifier
Essential Settings:
Accessory Relay 1 or 2 = Humidifier
• Outdoor temperature is displayed on home screen.
• Used to enable heat pump dual fuel switchover, warm
weather shut down, and cold weather shut down.
Outdoor Sensor
tekmar Outdoor
Sensor 070
External Jumper
Wires:
R to Acc1