Overheat/Limit control:
The limit control provides protection for the heater, should the temperature rise
above a safe level. If an overheat condition occurs, the limit control will shut down
the burner and hold it off until the manual reset button is pressed.
NOTE: If the limit requires re-setting more than once after first re-set, then a
competent engineer must be called to investigate further.
Fan setting - 35°c ON
(If required)
- 25°c OFF
High Limit - 20°c above normal running temperature no greater than 100°c
Important:
When integrated with building management system, the fan will be
operated via their controls and all interlocks must be fitted to ensure the burner
cannot start until the supply fan is running. On burner shutdown the supply fan
overrun will continue running for 10 – 15 minutes to dissipate residual heat.
Fan Assembly:
Inspect the fan blades to see they are not damaged and that there is no excessive
building up of deposits that could give an imbalance via access panel on the side
of the heater. If necessary clean the fan blades.
The main fan bearings are permanently sealed and do not require lubrication.
Check belts for signs of wear and replace if required.
Gas control valves maintenance:
No regular maintenance is required on these devices. Please refer to section 16 for
removal or replacement of parts.
WARNING!
Replace faulty gas valve with genuine BMM Heater replacement part; failure
to do so could result in death, injury and damage to property.
Note! Check all gas pipes and joints to ensure there are no cracks or gas leaks.
Any cracks in the pipe work or joint must be repaired.
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