Weil-McLain CGA25SPDN Boiler User Manual


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GOLD CGa Gas-Fired Water Boiler — Boiler Manual
28
Part Number 550-101-009/0107
Start-up — preparation6a
Check for gas leaks
"EFORESTARTINGTHEBOILERANDDUR-
ing initial operation, smell near the
floor and around the boiler for gas
ODORANTORANYUNUSUALODOR$O
not proceed with start-up if there is
any indication of a gas leak. Repair
any leak at once.
0ROPANEBOILERSONLY9OURPRO-
pane supplier mixes an odorant with
the propane to make its presence
detectable. In some instances, the
odorant can fade and the gas may
no longer have an odor.
s 0ROPANEGASCANACCUMULATE
at floor level. Smell near the
floor for the gas odorant or any
unusual odor. If you suspect a
leak, do not attempt to light the
pilot.
s 5SECAUTIONWHENATTEMPTING
to light the propane pilot. This
should be done by a qualified
service technician, particularly
if pilot outages are common.
s 0ERIODICALLYCHECKTHEODORANT
level of your gas.
s )NSPECTBOILERANDSYSTEMATLEAST
yearly to make sure all gas piping
is leak-tight.
s #ONSULTYOURPROPANESUPPLIER
regarding installation of a gas
leak detector. There are some
products on the market intended
FORTHISPURPOSE9OURSUPPLIER
may be able to suggest an appro-
priate device.
Determine if water treatment is needed
$ONOTUSEPETROLEUMBASEDCLEANINGORSEALING
COMPOUNDS
in boiler system. Severe damage to boiler
will occur, resulting in substantial property damage.
%LIMINATEALLSYSTEMLEAKS#ONTINUALFRESHMAKEUP
water will reduce boiler life. Minerals can build up in
sections, reducing heat transfer, overheating cast iron,
and causing section failure.
Verify water chemistry
#ONSULTLOCALWATERTREATMENTCOMPANIESFORUNUSUALLYHARDWATERAREAS
ABOVEGRAINSHARDNESSORLOWP(WATERCONDITIONSBELOW"OILER
WATERP(OFTOISRECOMMENDED
Freeze protection (when used)
Use antifreeze made especially for hydronic systems. Inhibited propylene
glycol is recommended.
$ONOTUSEETHYLENEGLYCOLAUTOMOTIVEORUNDILUTED
ANTIFREEZE
. Severe personal injury or death can result.
 $ETERMINE
ANTIFREEZEQUANTITY according to system water content.
"OILERWATERCONTENTISLISTEDONPAGE2EMEMBERTOINCLUDEEXPAN-
sion tank water content.
2. Follow antifreeze manufacturer’s instructions.
 !SOLUTIONOFPROPYLENEGLYCOLWATERPROVIDESMAXIMUMPROTEC-
tion to about -30°F.
4. Local codes may require
BACKmOWPREVENTER or actual disconnect from
city water supply.
5. When using antifreeze in a system with automatic fill, install a water
METERTOMONITORWATERMAKEUP'LYCOLWILLLEAKBEFORETHEWATERBE-
gins to leak, causing glycol level to drop. Added water will dilute the
antifreeze, reducing the freeze protection level.
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