Please Read Before Proceeding - Weil-McLain CGi Series 3 Installation And Maintenance Manual

CG i
GAS-FIRED wATER BOILER- sERIEs a -
Boiler Manual
Please read before proceeding
Installer User
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WARNING!
Read all Instructions before In-
stalling. Follow all instructions in
proper order to prevent personal
injury or death.
Consider piping and Installation when detem1ining
boiler location.
Any claims for damage or shortage In shipment
must be filed inunediatelyag:Unst the transportation
company by the consignee.
This manual Is for use only by your qualified
heating Installer/service technician.
Please refer to the User's Information Manual for
your reference.
We reconmtend regular service by a qualified
servtce technician, at least annually.
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WARNING!
The boiler contains ceramic fiber and fiberglass materials. Use care when handling these
materials per instructions on Page 70 of this manual. Failure to comply could result in severe
personal injury.
NOTICE
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 o n the Installation and service certificate fo und
on page 36.
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WARNING!
Failure to adhere to the guidelines on this page can result in severe personal injury, death
or substantial property damage.
When servicing boller -
Th avoid electric shock, discOJmect electrical supply
before performing maintenance.
To avoid severe burns, allow boiler to cool before
performing maintenanc-e.
Boller operation -
Do not block flow of combustion or ventilation air to
boiler.
Should overheating occur or gas supply fuil to shut
off, do not tum off or disconnect electrical supply to
circulator. 1 nstead, shut off the gas supply at a location
external to the appliance.
Do not use tllis boiler if any part has been under
water. Immediately call a qualified service teclmician
to inspect the boiler and to replace any part of the
control system and any gas control that has been under
water.
Boller 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, pers01mel and/
or property may result.
Part
Number
550-142-780/0712
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. Themtal
shock can cause sections to crack.
Glycol - potential fire hazard -
All glycol is flanmtable when exposed to lligh
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.
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