15. FLUE GAS SAMPLING
It may be necessary to take flue gas sampling from oil and gas gun furnaces (M1S and M1B Series Models) in order to check the perfor- mance after furnace installation. A flue gas sample may be taken from the heat exchanger, which is located behind the hole of the
1.STOP! Read the SAFETY INFORMATION.
2.Turn off all electric power to the appliance.
3.Remove the black plastic cap located above the blower and save.
4.Through the top of the blower compartment hole, drill a hole for your sampling tube into the heat exchanger.
5.Insert sampling tube through the drilled hole.
6.After a complete check and adjustment of furnace performance, fill the drilled hole with a screw that is larger than the hole.
7.Put silicon sealant (rated at least 500° F) around the screw.
8.Plug the outside hole with the plastic cap you removed in step 3.
!WARNING:
If you do not follow these instructions exactly, a fire or explosion may result causing personal injury, loss of life, or property damage.
16. LIGHTING AND SHUTDOWN
GENERAL-ALL MODELS
Read the safety information on the front page of these installation instructions before lighting furnace. DO NOT ATTEMPT TO LIGHT
FURNACE IF YOU SMELL GAS.
SAFETY INFORMATION
FOR YOUR SAFETY READ BEFORE LIGHT- ING.
a. The first lighting of the furnace after any home setup must be performed by a qualified service technician.
b.If this appliance has a pilot that must be lit by hand, follow these instructions exactly.
c.BEFORE LIGHTING smell all around the furnace for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.
d. WHAT TO DO IF YOU SMELL GAS: Do not try to light any appliance. Do not touch any electric switch and 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 depart- ment.
e.Use only your hand to push in the gas control lever. Never use tools. If the lever will not push in by hand, don’t try to repair it. Call a qualified service technician. Force or at- tempted repair may result in a fire or explo- sion.
f.Do not use this furnace if any part has been under water. Immediately call a qualified service technician to inspect the furnace and to replace any part of the gas valve or control system which has been under water.
LIGHTING INSTRUCTIONS FOR STAND- ING PILOT MODELS.
a. Stop! Read the safety information.
b. Set the thermostat to the lowest setting. c. Turn off all electric power to the appliance. d. Push in the gas control lever slightly and
move left to “OFF.” DO NOT FORCE.
e. Wait ten (10) minutes to clear out any gas. If you then smell gas, STOP! Follow step “d” in the SAFETY INFORMATION. If you don’t smell gas, go to the next step.
f.Find pilot - follow metal tube (pilot tube) from gas control valve. Open hinged fire obser- vation door. The pilot is found at the end of the pilot tube just left of the pilot shield.
g.Slightly depress the gas control lever and move it right to the “ON” position and release; then move it to the “PILOT” position.
h.Move the control lever to “SET” and hold. Immediately light the pilot with a match. Continue to hold the control lever for about one (1) minute after the pilot is lit. Release the lever and it will spring back to the “PILOT” position. Pilot should remain lit. If it goes out, repeat steps “d” through “h” above. If the lever does not spring back when released, stop and immediately call your service tech- nician or gas supplier. If the pilot will not stay lit after several tries, move the gas control lever to “OFF” and call your service techni- cian or gas supplier.
i.Move the gas control lever left to “ON”.
j.Turn on all electric power to the furnace. Set the thermostat to “Heat” and/or the desired temperature setting. Set the
k.Replace the furnace door.
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