PB Heat EC Series - Manual (Page 21)

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MAINTENANCE
3. Remove any scale or soot from the combustion
chamber area by vacuum cleaning or any other
available means.
4. Replace flue collector and close burner mounting
plate, making sure all gaskets are in place.
5. Replace jacket top panel.
6. Inspect venting system.
G. IF A LONG SHUTDOWN IS REQUIRED
1. To take boiler out of service if the boiler and system
are not to be used when temperatures are below
freezing:
a. Drain the boiler and system completely and shut
off make-up water supply.
b. Open main line power disconnect switch to
boiler. Remove the fuses or secure the switch so
that the power cannot be turned on accidentally.
2. Be certain that the boiler and system are refilled
before returning to service.
Always keep the manual fuel supply
valve shut off if the burner is shut
down for an extended period of time.
CAUTION
Burner mounting plate must be
opened to facilitate this operation.
NOTICE
All cover plates, enclosures, and
guards must be maintained in place
at all times, except during
maintenance and servicing.
NOTICE