Navien NFB-175H, Руководство пользователя

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17 Maintaining the Boiler
Service technician (See the following instructions)
Annual Start-up
General:
●
Address reported
problems.
●
Inspect interior; clean
and vacuum if necessary.
●
Clean condensate trap
and fill with fresh water.
●
Check for leaks (water,
gas, flue, condensate).
●
Verify flue and air lines
in good condition and
sealed tight.
●
Check system water
pressure/system piping/
expansion tank.
●
Check control settings.
●
Check ignition and
flame rod (clean and
reposition).
●
Check wiring and
connections.
●
Inspect flame (stable,
uniform).
●
Inspect flame signal.
If combustion or
performance indicate need:
●
Flush heat exchanger.
●
Remove and clean air
intake filter.
Note
●
If hot water will not flow and you
suspect that the boiler is frozen,
contact an authorized technician or
licensed professional.
●
This boiler requires very little
maintenance, however a qualified
technician should inspect the boiler at
the beginning of every heating season
and/or when there is a problem.
4.5 Maintenance Schedules
Owner maintenance
Daily
●
Check the boiler area is free
of combustible/flammable
materials and air contaminants.
●
Check the pressure/temperature
gauge for signs of higher than
normal pressure.
Monthly
●
Visually inspect the vent
piping for signs of leakage and
blockage.
●
Visually inspect the burner
flames.
●
Inspect the condensate trap and
the PVC fittings.
Periodically
●
Test the LWCO for proper
operation.
Every 6
months
●
Inspect boiler piping (gas and
water) for leaks.
●
Test to make sure the relief valve
is operating normally.
Non-
heating
season
●
Shut boiler down (unless boiler
is used for domestic hot water).