Weil-McLain GV90+ User Manual

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Part number 550-142-054/1211

GV90+ gas-fired water boiler — Boiler Manual

Figure 77 Service and maintenance schedules

Service technician

(see following pages for instructions)

Owner maintenance

(see following pages for instructions)

Annnual start-up

General:

• Addressreportedproblems,page68.

• Inspectboilerarea,page68.

• Inspectboilerinterior,page68.

• Inspectcondensatedrainsystem,page68.

• Inspectallpipingforleaks,page68.

• Inspectgaspiping,page68.

• Inspectthewatersystem,page68.

• Checkwatersystemchemistry,page68

• Inspectexpansiontank,page69.

• Inspectairopenings,page69.

• Inspectventsystemandairpiping,

page69.

• Inspectboilerheatingsurfaces,page69.

• Inspectigniter,page69.

• Inspectrecuperator,page70.

• Inspecttemperaturemixingsystem,

page70.

• Inspectlimitcontrolsandcutoffs,page70.

• Inspectgauges,page70.

• Inspectblowermotor,page70.

• Inspectoiled-bearingcirculators,page70.

• Inspectboilerreliefvalve,page71.

Additional if combustion or

performance indicates the need:

• FollowproceduresunderCleaningboiler

heatingsurfaces,page72toaccessboiler

componentslistedbelow.

• Cleanheatexchanger.

• Removeandcleanburnerusing

compressedaironly.

• Vacuumtheblower.

Review:

• Reviewwithowner.

Daily

• Checkboilerarea

• Checkairopenings

• Checkpressuregauge

Monthly

• Checkboilerinteriorpiping

• Checkventingsystem

• Checkairvents

• Checkcondensatedrainsystem

• Checkreliefvalve

Periodically

• Testlowwatercutoff(ifused)

• Cleanventtermination/airintake

screens

Every 6 months

• Oilblowermotor

• Operatereliefvalve

End of season

• Shutdownprocedure

Annual start-up and general maintenance schedule

Follow the Service and maintenance procedures given throughout

this manual and in component literature shipped with the boiler.

Failure to perform the service and maintenance could result in

damage to the boiler or system. Failure to follow the directions

in this manual and component literature could result in severe

personal injury, death or substantial property damage.

The boiler contains ceramic ﬁber

and ﬁberglass materials. Use care

when handling these materials per

instructions on page 107 of this

manual. Failure to comply could

result in severe personal injury.

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Weil-McLain GV90+ Gas Boiler

User Manual - Page 67