8
6. External Sensor Connection
N.TC. Sensor; Temperature ~ Resistance Characteristics
Temp
°
C
7.2 10.0 12.8 15.6 18.3 21.1 23.9 26.7 29.4 32.2
Temp
°
F
45 50 55 60 65 70 75 80 85 90
Res. k
115.8 100.9 88.1 77.1 67.7 59.6 52.5 46.4 41.2 36.6
- Disconnect power to the thermostat 24VAC.
- Connect the External Sensor to terminals T - T0.
- Reconnect power to the thermostat.
The length of the cable for the external sensor is 30 meters with standard cable.
If longer distance is needed then the cable MUST be shielded.
7. Change-over Sensor Connection (For PD configuration only)
- Disconnect power to the thermostat 24VAC.
- Connect the change-over Sensor to terminals T2 - 0.
- Reconnect power to the thermostat.
When the change-over sensor is connected, the [Mode] button will not be active the and the
thermostat will automatically switch between different modes according to the temperature.
Cool Mode
T2 < 20
°
C (68
°
F)
Heat Mode
T2 > 30
°
C (86
°
F)
