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GENERAL INSTRUCTION FOR SEASONAL START UP AND MAINTENANCE
Adjusting the pilot flame:
1.
Remove pilot adjustment cover screw.
2.
Turn inner screw (adjustment screw) clockwise
decrease and counterclockwise
flame. See Figure 10.
3.
Replace cover screw to prevent possible gas leakage.
4.
Main burners and pilot burner should be checked for
signs of corrosion or scale build up.
5.
Clean main burners and pilot burner with a steel bristle
brush.
Check Venter Static Pressure
Refer to Figure 18 for the following instructions.
1.
With boiler off, disconnect orange and white tubing
from pressure switch on air box and venter motor.
2.
Install 3/16" (.48 cm) plastic barbed tee between slope
manometer and pressure switch.
3.
The other part of tee goes to air box and venter
pressure taps.
A. Orange being high negative.
B. White being low negative.
4.
Turn boiler back on and read static pressure. Reading
should be -.55 ±.05 inches water column or higher for
Sealed Combustion series boilers.
5.
If static pressures are not at minimum allowable level,
check intake and exhaust pipes for obstructions or
damage.
6.
To reassemble, remove tees and additional tubing
and replace orange tube to venter tap, and white
tube to air box tap.
Figure 18 - Checking Static Pressure
7.
to
to increase pilot
CHECK GAS INPUT RATE TO BOILER
1.
2.
18
Do not cut original tubing. Additional tubing is
required. If tubing is cut, replace it only with
O.E.M. high temperature silicone tubing. Do not
replace with vinyl or plastic tubing because it will
melt.
Maximum permissible gas supply pressure must not
be higher and minimum supply pressure must not be
lower than what is specified on the rating plate.
To check for proper flow of natural gas to boiler using
the gas meter, proceed as follows:
A. Turn off gas supply to all other appliances, except
boiler.
B. With boiler operating, determine flow of gas
through meter for two minutes and multiply by 30
to get hourly rate.
C. Divide input rate shown on rating plate by heating
value of gas obtained from local gas company. This
will determine number of cubic feet of gas required
per hour.
D. If minor adjustment is necessary, install manom-
eter on outlet side of gas valve. Adjust pressure
regulator on combination gas control. Increase
or decrease manifold pressure to obtain gas input
required as described on rating plate. To increase,
turn regulator adjusting screw clockwise
counterclockwise
Figure 10.
E. After adjustment has been completed, turn boiler
off and remove manometer and shut-off valve.
F. Relight all other appliances turned off in step A
above. Be sure all pilot burners are operating.
or
to decrease pressure. See
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