To Turn Off Gas To Appliance; Parts And Service; For Your Safety Read Before Operating - Suburban NT-40 User's Information Manual

14. Do not install air boosters in the duct system. Such devices will cause the
furnace to cycle on limit and to have erratic sail switch operation.
15. Clothing or other flammable material should not be placed on or near the
appliance.
16. Always follow the Operating Instructions. Do not deviate from the step-by-
step procedures.
17. Do not use this appliance if any part has been submerged under water.
Immediately call a qualified service technician to inspect the appliance and
to replace any part of the control system and any gas control that has been
submerged under water.
18. When considering add-on rooms, porch or patio, attention must be given to
the venting of your furnace. For your safety, do not terminate furnace vent
inside add-on rooms, screen porch or onto patios. Doing so will result in
products of combustion being vented into the room or occupied areas.
19. In any installation in which the vent of this appliance can be covered due to
the construction of the RV or some special feature of the RV such as slide out,
pop-up etc. always insure that the appliance cannot be operated by setting
the thermostat to the positive "OFF" position and shutting off all electrical and
gas supply to the appliance. Never operate furnace with vent covered.
Your furnace should be inspected by a qualified service agency yearly
before turning the furnace on. Particular attention should be given to the
following items:
1. Inspect furnace installation and vent termination to be sure furnace is properly
secured in place, that vent terminates to the atmosphere and that vent tubes
overlap properly. (See installation manual supplied with furnace.)
2. Inspect chamber and venting to assure that these components are physically
sound, without holes or excessive corrosion and that the installation and/
or reinstallation is in accordance with Suburban's Installation Instructions.
(Reference installation manual supplied with furnace.)
WARNING!
It is imperative that the products of combustion be properly vented
to atmosphere and that all combustion air supplied to burner be drawn from outside
atmosphere.
3. Check the base on which furnace is mounted. Be sure it is physically sound,
void of any sagging, deterioration, etc.
4. Inspect furnace, the venting, ducting and the gas piping to furnace for obvious
signs of deterioration. Correct any defects at once.
5. Inspect combustion chamber for restrictions in exhaust or intake. It is imperative
that the flow of intake combustion air and the flow of exhaust gases being
expelled to the outside atmosphere not be obstructed. Any soot or loose
debris should be blown out using compressed air. (See Figure 3.)
6. Inspect all gaskets. If any gaskets show signs of leakage or deterioration,
replace them. Safe operation of the furnace depends on all gaskets being
tight.
7. Inspect return air inlet openings to the furnace. Remove any restrictions to
assure adequate air flow.
OPERATING INSTRUCTIONS
WARNING!
Do not operate furnace while vehicle is in motion or being towed.
NOTE: During initial firing of this furnace a burn-off of excess paint and oils re-
maining from manufacturing process may cause "SMOKING" for 5 - 10 minutes.
FOR YOUR SAFETY
READ BEFORE OPERATING
WARNING!
If you do not follwo these instructions exactly, a fire or explosion may result
causing property damage, personal injury or loss of life.
A. This appliance does not have a pilot. It is equipped with an ignition device
which automatically lights the burner. Do not light the burner 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
• Extinguish any open flame.
• Evacuate all persons from the vehicle.
• Shut off the gas supply at the gas container or source.
• Do not touch any electric switch or use any phone or radio in the vehicle.
• Do not start the vehicle's engine or electric generator.
• Contact the nearest gas supplier or qualified service technician for repairs.
• If you cannot reach a gas supplier or qualified service technician, contact
the nearest fire department.
• Do not turn on the gas supply until the gas leak(s) has been repaired.
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. Immediately 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 under water.
OPERATING INSTRUCTIONS
1. STOP! Read Users Information Manual supplied with furnace.
2. Turn the manual valve (if so equipped) or the valve at the outside LP tank to
the "OFF" position (See Figure 4). Do not force.
3. Set thermostat above room temperature to begin blower operation. A slight
delay will occur before the blower comes on. Allow blower to run for 5 minutes
for combustion chamber purge cycle. If blower does not come on or stops
before ignition cycle, go to shut down
recreational vehicle service agency.
4. After 5 minutes, move thermostat lever below room temperature. Blower will
remain on. Wait approximately 2 minutes for blower to go off.
5. Wait five (5) minutes 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 label. If you don't smell gas, go to next step.
6. Open manual shut-off valve or the valve at the outside LP tank. Correct
operating characteristics depend on the valve being positioned fully open.
Never attempt to operate with a valve partially closed.
NOTE: Furnace Models NT-30SP, NT-34SP, NT-40, P-40 and P-40B
equipped with a valve shut-off switch, with switch in "OFF" position, gas will not
flow through to burner nor will the furnace operate.
7. Set thermostat lever to desired setting. If set above room temperature, blower
will come on.
8. Allow 30 seconds for main burner to light after blower comes on. This furnace
Is equipped with an ignition device which automatically lights the burner. Do
not try to light the burner by hand.
9. If burner does not light, repeat Steps 1 through 9.
10. If after three (3) attempts with no ignition, go to shut down and contact your
dealer or a local recreational vehicle service agency. Do not continue to cycle
furnace through thermostat in an attempt to get ignition.

TO TURN OFF GAS TO APPLIANCE

1. Set the thermostat to lowest setting, then move lever to "OFF" position.
2. Turn off all electric power to the appliance if service is to be performed.
3. Turn shut-off valve clockwise → to "OFF". Do not force.

PARTS AND SERVICE

Contact a conveniently located recommended Suburban Service Center.
Describe to them the nature of your problem, make an appointment, if necessary,
and provide for delivery of your RV with the appliance installed.
To obtain information on locating a local service agency, contact:
AIRXCEL, Inc., - Suburban Division
Customer Service Department
676 Broadway Street
Dayton, TN 37321
(423) 775-2131 Ext. 7101
www.Airxcel.com
2
and contact your dealer or a local
are