Airstream TC5-2V4SA User Manual page 46

TC5-2V4SA
The figure below explains the operation of zoned heaters.
Heating
ON
OFF
If the room temperature rises:
- at Set Point - Heater Offset 1 (Probe 1) : Heater 1 turns off.
- at Set Point - Heater Offset 2 (Probe 2) : Heater 2 turns off.
If the room temperature falls:
- at Set Point - Heater Offset 1 - Diff. 1 (Probe 1) : Heater 1 turns on.
- at Set Point - Heater Offset 2 - Diff. 2 (Probe 2) : Heater 2 turns on.
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TC5-2V4SA rev.06
Heater turns on
HEATER
DIFFERENTIAL
Heater turns off
HEATER
OFFSET
Set Point
Temperature