Install Instructions
CG i
GAS-FIRED
wATER
BOILER-
sERIEs
a-
Boiler
Manual
7a
Start-up
- preparation
Check
for
gas
leak
s
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32
Before starting the boiler,
and
dur
-
ing i
niti
al
operation, sme
l1
near
th
e
fl
oor
and
around
th
e boiler for gas
odo
rant
or
any
unusual
odo
r.
Do
not
proceed with start-
up
if
there is
any indication
of
a gas leak. Repair
any leak
at
once.
Pr
opane
boilers only - Your
pro
-
pane supplier m
ixes
an odorant with
the
propane to make its presence
detectable.
In
some instances,
the
odorant can fade
and
the gas m
ay
no
longer have an odor.
Propane
g:>s
can accumulate
at
fl
oor level. Smell near
th
e
fl
oor
for the gas
odorant
or
any un-
usual odor.
If
you suspect a leak,
do
not
attempt
to
li
ght the pilot.
Use
caution
when
attempting
to light the propane pilot.
This
sho
ul
d be
do
ne by a qualified
service technician, particularly
if
pilot outages are common.
Periodically check
th
e
odo
rant
level
of
your gas.
Insp
ect
boiler
and
system
at
least
yearly
to
make sure all gas piping
is leak-tight.
Co
nsult
yo
ur
pr
opa
ne supplier
regarding installation
of
a gas
leak detector.
There
are
so
me
products on the market intended
for this purpose.
Your supplier
may
be
able to suggest
an
appro-
priate
device.
Determine
if
water
treatment
is
needed
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Do not use
petroleum
-
based
cleaning
or
sealing
compounds
in boiler system. Severe
dam
age to boil
er
will occur, resulting in substantial property damage.
Eliminate all system leaks. Continual fresh mak
eup
water will reduce boiler life. Minerals can build
up
in
sections,
red
ucing heat
transfer,
overheating
c.ast
iron,
and
causing section failure.
Ver
ify
wat
er
chem
istry
Consult local water treatment companies for unusually hard water areas
(above 7 grai
ns
hardness) or low pH
wa
ter conditio
ns
(below 7.0). Boiler
water
pH
of7.0
to 8.5
is
reco
mm
end
ed
Freeze
protection
(when
used)
Use
antifre.
eu
made especially for hydronic systems. Inhibited propylene
glycol
is recommended.
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Do not
us
e ethylene glycol, automotive
or
undiluted
antifreeze. Severe personal injury
or
dea
th
can
result.
I.
Detemtine antifr
eeze
quantity according to system water content.
Boiler wat
er
co
nt
e
nt
is
listed on page 66. Rem
em
b
er
to include expan-
si
on
ta
nk
water
co
ntent.
2.
Follow
antifreeze manufactur
er's
instructions.
3. A
SO%
solution of propylene glycol/water
pr
ovides maximmn protec-
tion
to
about -
30°F.
4.
Local
codes may require
back
flow
preventer
or
actual disconnect
fro
m city water supply.
5. When using antifreeze
in
a system wi
th
a
ut
omatic till, install a water
met
er
to mo
nit
or water makeup. Glycol will leak before
th
e wat
er
begins to leak, causing glycol level to drop. Added water will dilute
the
antifreeze, reducing the
freeu
protection
level.
Part Number 550-142-780/0712