Weil-McLain CGI-4E Boiler User Manual


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Part Number 550-110-711/1108
5
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CGi-4E Gas-Fired Water Boiler — Boiler Manual
Please read before proceeding
Failure to adhere to the guidelines on this page can result in severe personal injury, death
or substantial property damage.
• Continualfreshmakeupwaterwillreduce
boiler life. Mineral buildup in sections re-
duces heat transfer, overheats cast iron, and
causes section failure. Addition of oxygen
and other gases can cause internal corrosion.
Leaks in boiler or piping must be repaired
at once to prevent makeup water.
• Donotaddcoldwatertohotboiler.Thermal
shock can cause sections to crack.
Glycol — potential fire hazard —
All glycol is flammable when exposed to high
temperatures. If glycol is allowed to accumulate
in or around the boiler or any other potential
ignition source, a fire can develop. In order to
prevent potential severe personal injury, death
or substantial property damage from fire and/or
structural damage:
• Neverstoreglycolofanykindneartheboiler
or any potential ignition source.
• Monitorandinspectthesystemandboiler
regularly for leakage. Repair any leaks im-
mediately to prevent possible accumulation
of glycol.
• Neveruseautomotiveantifreezeorethylene
glycol in the system. Using these glycols can
lead to hazardous leakage of glycol in the
boiler system.
When servicing boiler —
• Toavoidelectricshock,disconnectelectricalsupply
before performing maintenance.
• Toavoidsevereburns,allow boiler to coolbefore
performing maintenance.
Boiler operation —
• Donotblockowofcombustionorventilationairto
boiler.
• Shouldoverheatingoccurorgassupplyfailtoshut
off, do not turn off or disconnect electrical supply to
circulator. Instead, shut off the gas supply at a location
external to the appliance.
• Donotusethis boiler ifanypart hasbeenunder
water. Immediately call a qualified service technician
to inspect the boiler and to replace any part of the
control system and any gas control that has been under
water.
Boiler water —
• Donot use petroleum-based cleaningorsealing
compounds in boiler system. Water seal deterioration
will occur, causing leakage between sections. This can
result in substantial property damage.
• Donot use“homemade cures” or“boiler patent
medicines”.Seriousdamagetoboiler,personneland/
or property may result.
Installer
Read all instructions before in-
stalling
. Follow all instructions in
proper order to prevent personal
injury or death.
• Considerpiping and installation when determining
boiler location.
• Anyclaims for damage or shortage in shipment
must be filed immediately against the transportation
company by the consignee.
User
• This manual is for use only by your qualied
heating installer/service technician.
• PleaserefertotheUser’s Information Manual for
your reference.
• We recommendregularservice by a qualied
service technician, at least annually
.
When calling or writing about the boiler— Please have the boiler model number from the
boilerratinglabelandtheCPnumberfromtheboilerjacket.YoumaylisttheCPnumberin
the space provided on the Installation and service certicate found on page 37.
The boiler contains ceramic fiber and fiberglass materials. Use care when handling these
materials per instructions on page 68 of this manual. Failure to comply could result in severe
personal injury.
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