Lochinvar 402 Maintenance Maintenance and annual startup, Service technician, Owner maintenance

Copper-fin II/IIE Boiler and Water Heater Service Manual

2 Maintenance

Maintenance and annual startup

Table 2A_Service and Maintenance Schedules

Service technician

(see the following pages for instructions)

	General:
	• Address reported problems
	• Inspect		interior; clean		and	vacuum if
		necessary;
	• Check		for	leaks (water,		gas,	flue,
		condensate)
	• Examine venting system
UP-	• Check system water pressure/system
		piping/expansion tank
START
	•	Check control settings
	•	Check igniters
ANNUAL	• Check wiring and connections
	• Check flue gas passageways
	•	Flame inspection (stable, uniform)
	• Inspect and clean the burners
	• Check manifold gas pressures
	• Perform			start-up	checkout		and
		performance verification per the Startup
		Section in the Installation and Operation
		Manual.

If combustion or performance indicate need:

•Clean heat exchanger with a stiff bristle brush

•Remove and clean burners using water. Dry before re-assembling.

•Clean the blower wheel with a brush and vacuum. Do not let dirt from cleaning get pulled into the blower.

Owner maintenance

(see the User’s Information Manual for instructions)

	• Check appliance area
	• Check pressure/temperature
Daily	gauge

	• Check vent piping
	• Check air piping
Monthly	• Check relief valve
	• Replace combustion air filter
	Note: More frequent replacement may
	be necessary in dirty environments.
	Do not use pleated filters.
Periodically	• Test low water cutoff (if used)
	• Reset button (low water cutoff)
Every	• Check appliance piping (gas and
	water) for leaks
6 months	• Operate relief valve
End	• Shut appliance down (unless
	boiler used for domestic hot
of season	water)
months

25