Ascent Combi & Ascent Plus Combi Gas Heat – PN 10-2099 – May 2020 3
FOR YOUR SAFETY READ BEFORE OPERATING
A. This burner does not have a pilot. It is equipped with an ignition device which automatically
lights the burner. DO NOT try to light the burner by hand.
B. BEFORE OPERATING, smell all around the boiler area for gas. Be sure to smell next to the
floor because some gas is heavier than air and will settle on the floor. See below.
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. Follow the gas supplier’s
instructions.
If you cannot reach your gas supplier, call the fire department.
C. Use only your hand to turn the gas “shutoff” valve. Never use tools. If the handle will not 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 boiler if any part has been under water. Immediately call a qualified service
technician to inspect the boiler and to replace any part of the control system and any gas
control, which has been under water.
1. STOP! Read the safety information above.
2. Set the thermostat(s) and aquastat(s) to their lowest setting.
3. Turn the service switch located on the s panel “OFF”.
4. This burner is equipped with an ignition device which automatically lights the burner. Do not try
to light the burner by hand.
5. Turn the Gas control knob clockwise to the “OFF” position.
6. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you
smell gas, STOP! Follow the safety information above. If you don’t smell gas, go to the next
step.
7. Turn Gas control knob counterclockwise to the “ON”.
8. Set thermostat(s) to desired setting.
9. Turn on all electric power to the burner and boiler.
10. If the burner/boiler will not operate, follow the instructions “TO TURN OFF GAS TO THE
BURNER” below and call your service technician or gas supplier.
TO TURN OFF GAS TO THE BURNER
1. Set thermostat(s) to their lowest setting.
2. Turn the service switch on the Ascent right side panel “OFF”.
3. Turn the Gas control knob clockwise to the “OFF” position. Do not force.
WARNING: If you do not follow these instructions exactly, a fire or explosion
may result causing property damage, personal injury or loss of life.
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