Weil-McLain CGA25SPDN Boiler User Manual


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GOLD CGa Gas-Fired Water Boiler — Boiler Manual
50
Part Number 550-101-009/0107
Troubleshooting — procedure (continued)11a
Check the following:
1. Wire connectors to control module are securely
plugged in at module and originating control.
 'ASPRESSURES
A 7ITHBOILEROFFvWCMAXIMUMNATURAL
or propane gas pressure upstream of gas valve.
b. With boiler on:
s vWCMINIMUMNATURALGASPRESSUREOR
vWCPROPANEGASPRESSUREUPSTREAMOF
gas valve.
s vWCMINIMUMNATURALGASPRESSUREOR
vWCPROPANEGASPRESSUREDOWNSTREAM
TAPPINGONGASVALVE#ANBEADJUSTEDBY
regulator on gas valve.
In event of vent damper
failure:
Effikal or Field Controls damper
If troubleshooting chart recommends replacing actua-
tor and actuator is not immediately available, damper
blade can be fixed in an open position to allow boiler
operation. Manually turning blade can cause actuator
damage. Follow these instructions only in case of no
heat or damper actuator malfunction.
1. Move damper service switch to
(OLD$AMPER/PEN
POSITION!PPLYCALLFORHEATTOBOILER$AMPERBLADE
should then rotate to open position and boiler will
fire.
2. If step 1 does not open damper, manually rotate
s6ERIFYPROPEROPERATIONAFTERSERVICINGs3EEVENTDAMPERMANUFACTURERSINSTRUCTIONSPACKEDWITHVENTDAMPER
for additional information. Failure to comply could result in severe personal injury, death or substantial property
damage.
Failure to turn off power to boiler
can result in severe personal injury,
death or substantial property dam-
age.
2. Refer to vent damper manufacturer’s instructions
for procedure to fix vent damper in open position.
3. Turn on power to boiler.
4. Using wrench or pliers on flat shaft section, manu-
ally rotate damper blade until green light turns on.
"OILERWILLlRE
&IGURE)
 $ONOTLEAVEVENTDAMPERPERMANENTLYINTHISPOSI-
tion. Replace actuator immediately. If vent damper
is left in open position, boiler will not operate at
published efficiencies.
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