Description
This timer operates on a count down basis.
Every time that the boiler stat is activated the timer starts to countdown for a period of 30 minutes.
If the boiler does not recover before the timer times out then the control system automatically turn the oil boiler on, assuming that the control panel switch is set to auto.
Typical Modulating Cycle
1. Boiler water temperature cools down.
2. Boiler temperature control thermostat responds and is activated.
4.The primary air fan is turned on to rais the boiler temperature.
3. Boiler reaches target temperature and fan shuts down.
Note 1
All of this has to occur withing the 30 minute timer range otherwise the oil boiler will turn on assuming that the control panel switch is set to auto.
Note 2
The 30 minutes can be adjusted to suit the users requirement.
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