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_!
Do not exceed
the Input
rate stamped
on the
nameplate
of boiler
located
on End Jacket
Panel.
Verify
primary
air supply
to main burners
is
properly
adjusted
for complete
combustion.
Check Burner
Input
Check boiler for proper Btu input rate.
If boiler is shut down for service, gas and electric must be
off for 5 minutes before relighting.
To check boiler for proper
Btu Input
proceed as
follows:
With main burners operating,
measure the gas
Input to the boiler by reading the meter. Be sure all other
appliances connected to the same meter are shut off.
Rate of gas flow (cu. ft. per hour) multiplied
by the Btu
value of the gas should check with the Btu Input shown
on the nameplate of the boiler. If it is not within +/- 2%,
adjust Pressure Regulator to obtain the desired flow
(stem for adjustment
is under the cap in the top of the
regulator).
TURN CLOCKWISE TO INCREASE INPUT AND
COUNTERCLOCKWISE TO DECREASE THE INPUT RATE.
NOTE-" The adjustment
screw is plastic and may require
sfightly greater turning force than metal threads.
Be sure to replace Regulator Cap.
High Limit Control
While boiler is operating, set high limit control below boiler
water temperature
and main burners should shut off.
Return control to normal setting and main burners should
start again.
This valve should be tested every month during periods
of boiler operation, and at the beginning and end of any
extended non=service period. Prior to testing, make cer-
tain discharge pipe is properly connected to valve outlet
and arranged so as to contain and safely dispose of boiler
discharge. Test at normal system operating pressure. Hold
the trip lever fully open for at least five seconds in order to
flush free any sediment that may lodge on the valve seat.
Then permit the valve to snap shut.
Burner
And Pilot Flame
We recommend that you make a periodic visual check of
the burners and pilot flame, Figure 42. During this visual
check look for any deterioration
from corrosion or other
sources of the burners, pilot burners and boiler base frame.
Also be sure the boiler base interior and exterior are clean.
This visual check should be made once every month dur-
ing the heating season by the owner and once a year by
a competent service technician to assure safe and trou-
ble-free operation.
Figure 42 = Pilot and Flame
......Outer Mantle
,
Outer
Cone
Pressure Relief Valve
You must
have pressure
relief valve on the boilen The
Relief Valve on water
boilers
is set at 30 psig, (50 psig
optional.)
Run a pipe from
the
pressure
relief
valve
outlet
to an open drain. This pipe must be of same size
as outlet
on valve and open end must
not be threaded.
This drain must be run in an area not subject
to freezing.
Failure
to do so may
cause
water
damage
or injury
should
valve
release.
[f valve
discharge
occurs,
or if valve fails to open as
described
above,
contact
an authorized
contractor
or
qualified
service
technician
to replace
the relief
valve
and inspect
the heating
system
to determine
the cause,
as this may indicate
an equipment
malfunction.
Burner
And Pilot Flame
Under normal operating conditions, with the burners
adjusted properly, it should not be necessary to clean the
boiler flue gas passages. However, to assure trouble-free
operation, we recommend that you have the flue passages,
burner adjustments
and operation of the boiler controls
checked once each year by a competent service technician.
If it becomes necessary to clean flue passages, first remove
the burners and pilot(s) from the boiler. Refer to Figure 13
in the Installing
Draft Hood Section in the front of this
instruction
and remove the clean-cut cover panel on the
draft hood. This will expose the flue passages. Clean flue
passageways between the sections with flexible handle
wire brush. Remove all dirt from bottom of boiler and
reassemble all parts. Be sure to check tightness of pilot
connection(s)
and adjustment
of pilot(s) and burner flames
after reassembly.
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