Burner Adjustment, Checking Gas Input - Sentry S-34 Installation And Operating Instructions Manual

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3. Venting is installed according to instructions under "VENT
PIPING".
4. All wiring is completed, following applicable wiring dia-
grams.
5. Using soap solution, check for gas leaks in all gas piping from
meter to boiler pilot and manifold. DO NOT use open flame.
Intermittent Pilot System (IID).
FOR BOILERS EQUIPPED WITH HONEYWELL GAS VALVE
VR8204 or VR8304 (see figures 12 and 13).
SAFETY INFORMATION
FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING: If you do not follow these instructions exactly,
a fire or explosion may result causing property damage, per-
sonal injury or loss of life.
A. This appliance is equipped with an ignition device which automat-
ically lights the pilot. Do not try to light the pilot by hand.
B. BEFORE OPERATING smell all around the appliance area for gas.
Be sure to smell next to the floor because some gas is heavier than
air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
• DO NOT try to light any appliance.
• DO NOT touch any electric switch; DO NOT use any phone in
your building.
• Immediately call your gas supplier from a neighbor's phone. Fol-
low the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.
C. Use only your hand to push in or turn the gas control knob. Never
use tools. If the knob will not push in or turn by hand, don't try to
repair it, call a qualified service technician. Force or attempted
repair may result in a fire or explosion.
D. Do not use this appliance if any part has been under-water. Imme-
diately call a qualified service technician to inspect the appliance
and to replace any part of the control system and any gas control
which has been underwater.
Operating Instructions
1. STOP! Read the safety information above.
2. Set the thermostat to lowest setting.
3. Turn off all electric power to the appliance.
4. This appliance is equipped with an ignition device which
automatically lights the pilot. DO NOT try to light the pilot
by hand.
5. Turn gas control knob clockwise
then continue to "OFF". DO NOT force.
Figure 12. Valve VR8204 or VR8304
Figure 13.
6. Wait five (5) minutes (longer for propane) to clear out any
gas, then smell for gas, including near the floor. If you then
smell gas, STOP! Follow "B" in the safety information above
on this page. If you don't smell gas, go to next step.
7. Turn gas control knob counterclockwise
8. Turn on all electric power to the appliance.
9. Set thermostat to desired setting.
10. If the appliance will not operate, follow the instructions "To
Turn Off Gas To Appliance" and call your service technician
or gas supplier
1. Set the thermostat to lowest setting.
2. Turn off all electric power to the appliance if service is to
be performed.
3. Turn gas control knob clockwise
then continue to "OFF". DO NOT force.
III. BURNER ADJUSTMENT
A. Adjust gas input rate:
1. Consult gas supplier for higher* heating value of gas –
W/m
2. Set thermostat high enough so that boiler will remain on
while checking rate. All other gas appliances off during
rate check.
3. Measure manifold pressure at 3 mm (1/8") tapping. Cor -
rect manifold pressure for gas used is printed on boiler
rating plate. NOTE: Gas pressure may be adjusted by
turn ing pressure regulator screw on combination gas
valve (turn clockwise to increase pressure, counterclock-
until knob stops
wise to decrease pressure).
a. Input for PROPANE is approximately at rating shown on
rating plate when manifold pressure is 241 mm (9
water column.
b. Input for NATURAL GAS is approximately at rating
when manifold pressure is 89 mm (3
but should be checked on the gas meter:
Input = W/m
(Input = Btu/cu. ft. x cu. ft. metered in 3 minutes x 20)
Example #1:
For 8.29 W/m
Input = m
(For 1000 Btu/cu.ft. gas, this becomes:
Input = cu. ft. metered in 3 minutes × 1000 × 20)
To Turn Off Gas To Appliance
3 (Btu/cu.ft.)
× m metered in 3 minutes × 20
3 3
gas, this becomes:
3
metered in 3 minutes × 8.29 × 20
3
Sentry
to "ON".
until knob stops,
1 / ")
2
1 / ") water column,
2