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6 Start-up
Installation & Service Manual
Initial Start-up
Follow the Lighting Instructions on the label applied to the
appliance.
A. On water heaters and boilers with the system pump
delay option, the operating temperature control will
energize the pump relay which energizes the pump on
a call for heat. The operating temperature control will
de-energize the pump relay approximately 30 seconds
after the call for heat ends. If either the inlet sensor or
the optional multi-purpose temperature sensor reads
below 40°F, the pump relay will turn ON. When the
temperature rises above 50°F the pump relay will turn
OFF.
On boilers, the pump will operate whenever the “W”
terminal is energized.
B. Location - The appliance should be located within a
room having a temperature safely above freezing
[32°F(0°C)].
C. Shutdown and Draining - If, for any rea son,
the appliance is shut off, the following
pre cau tion ary measures must be taken:
1. Shut off gas supply,
2. Shut off water supply.
3. Shut off electrical supply.
4. Drain the heat exchanger completely. Re move one
3/8" NPT plug or bulbwell from the inlet side and one
from the outlet side of the front head er of the heat
exchanger.
5. Drain the pump. Remove the 3/4" plug in the bypass
loop.
Pre-start Checklist
1. Inspect the burners to be sure they are prop er ly aligned.
2. Inspect the pilot gas line, thermocouple leads, ignition
leads and wire connections to the gas valve to be sure
none were damaged during shipment.
3. Check to ensure that gas connections have been made
properly and the gas line is purged of air.
4. Check to ensure that water connections are tight and the
appliance and piping system have been properly filled.
5. Ensure that discharge from the relief valve has been piped
to a floor drain.
6. Verify that properly sized combustion and
ven ti la tion air openings are provided and not obstructed
in any way.
7. Check carefully for gas leaks.
8. Read the appliance’s safety warnings, light ing
instructions and check out procedure carefully, be fore
firing the system.
Lighting Instructions for Standing
Pilot Models (F1) Models 90,000
through 270,000 Btu/hr Input
FOR YOUR SAFETY READ BEFORE
OPERATING
ƽ WARNING
If you do not follow these in struc tions
exactly, a fire or explosion may result
causing prop er ty damage, personal injury
or loss of life.
A. This appliance has a pilot which must be ig nit ed by
hand. When lighting the pilot, follow these
instructions exactly.
B. BEFORE OPERATING, smell around the appliance
area for gas. Be sure to smell next to the floor because
some gas is heavier than air and will settle to 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 near by
phone. Follow 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 turn by
hand, don’t try to repair it, call a qualified ser vice
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. Immediately call a qualified service technician
to inspect the appliance. The pos si ble damage to a
flooded appliance can be extensive and present
numerous safety hazards. Any appliance that has
been under water must be replaced.