Knight WH 399, Руководство по обслуживанию

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2
Maintenance
Service Manual
32
Oiled bearing circulators
1. The circulator shipped with the Knight wall mount boiler
is water-lubricated. No oiling is required.
2. Check other circulators in the system. Oil any circulators
requiring oil, following circulator manufacturer’s
instructions. Over-oiling will damage the circulator.
3. Replace the boiler front access cover.
Review with owner
1. Review the Knight Wall Mount User’s Information
Manual with the owner.
2. Emphasize the need to perform the maintenance
schedule specified in the Knight Wall Mount User’s
Information Manual (and in this manual as well).
3. Remind the owner of the need to call a licensed
contractor should the boiler or system exhibit any
unusual behavior.
4. Remind the owner to follow the proper shutdown
procedure and to schedule an annual start-up at the
beginning of the next heating season.
The boiler contains ceramic fiber
materials. Use care when handling these
materials per instructions in the Service
Manual. Failure to comply could result
in severe personal injury.
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WARNING
Cleaning boiler heat exchanger
1. Shut down boiler:
• Follow the “To Turn Off Gas to Appliance” instructions
for the boiler in Section 10 - Startup.
• Do not drain the boiler unless it will be exposed to
freezing temperatures. If using freeze prevention fluid
in system, do not drain.
2. Allow time for the boiler to cool to room temperature
if it has been firing.
3. Remove the nuts securing the heat exchanger access
cover to the heat exchanger and set aside.
4. Remove the heat exchanger access cover and burner.
5. Remove the condensate trap from the bottom of the
boiler. Place a bucket underneath the condensate
fitting attached to the heat exchanger.
6. Use a vacuum cleaner to remove any accumulation on
the boiler heating surfaces. Do not use any solvent.
7. Using a clean cloth dampened with warm water, wipe
out the combustion chamber. Rinse out debris with a
low pressure water supply.
8. Allow the heat exchanger to thoroughly dry.
9. Perform start-up and check-out procedures in the
Check Flame and Combustion - Section 10 - Startup
of the Knight Wall Mount Installation and Operation
Manual.
10. Replace the burner, access cover and condensate trap.
Restore boiler to operation.
* Do NOT use a metal brush.
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CAUTION