Suburban NT-40 User's Information Manual

USER'S INFORMATION MANUAL
This book contains instructions covering the operation and maintenance of your furnace.
Should you require further information, contact your dealer or nearest Suburban Service Center.
WARNING!
Installation of this appliance must be made
in accordance with the written instructions provided in this
manual. No agent, representative or employee of Suburban
or other person has the authority to change, modify or waive
any provision of the instructions contained in this manual.
WARNING!
Improper installation, adjustment, alteration,
service or maintenance can cause property damage, personal
injury or loss of life. Refer to the installation instructions and/
or owners manual provided with this appliance.
WARNING!
Be sure the furnace and all ignition systems
are "OFF" during any type of refueling and while vehicle is in
motion or being towed.
WARNING!
If the information in this manual is not
followed exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
Do not store or use gasoline or other
flammable vapors and liquids in teh vicintiy
of this or any other appliance.

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 electrical 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.
• Installation and service must be performed by
a qualified installer, service agency or the gas
supplier.
Part Number 204401
02-24-2014
NT-40 • P-40
NT-30SP ● NT34SP • P-40B
INSTALLER: LEAVE THIS MANUAL WITH THE APPLIANCE.
CONSUMER: RETAIN THIS MANUAL FOR FUTURE REFERENCE.
AIRXCEL, INC. - SUBURBAN DIVISION

MAINTENANCE AND CLEANING

WARNING!
If the user of this appliance fails to maintain it in the condition in which it was
shipped from the factory or if the appliance is not used solely for its intended purpose or if
appliance is not maintained in accordance with the instructions in this manual, then the risk
of a fire and/or the production of carbon monoxide exists which can cause personal injury,
property damage or loss of life.
CAUTION: Label all wires prior to disconnection when servicing controls.
Wiring errors can cause improper and dangerous furnace operation.
Always verify proper operation of furnace after servicing.
You, as the owner/user, should inspect the furnace monthly during the heating
season for presence of soot on vent. Operating the furnace under this condition
could lead to serious property damage, personal injury or loss of life. If soot is
observed on the vent, immediately shut furnace down and contact a qualified
service agency.
Listed below are several safety related items that you should follow during the
heating season to assure continued safe operation of the Furnace.
1. Inspect furnace venting. Venting must be free of obstructions, void of soot and
properly terminated to the atmosphere. (Refer to Installation Manual.)
WARNING!
Do not install screens over the vent for any reason. Screens will become
restricted and cause unsafe furnace operation. Accessories are being marketed for RV
products which we do not recommend. For your safety, only factory authorized parts are to
be used on your furnace.
2. Periodically inspect the vent for obstructions or presence of soot. Soot is
formed whenever combustion is incomplete. This is your visual warning that
the furnace is operating in an unsafe manner. If soot is present, immediately
shut furnace down and contact your dealer or a qualified service person.
3. Periodically observe the main burner flame to assure it is burning with a hard
blue flame with well defined burner ports (See Figure 2). If flame appears
yellow or burner has a lazy flame, shut furnace down. It is possible that burner
needs cleaning or replaced. To inspect the main burner, remove the four (4)
screws (A, B, C and D) securing the burner access door to the combustion
chamber (See Figure 1). If excessive rust and corrosion are present on burner
surface, the burner must be thoroughly cleaned or replaced. The burner may
be cleaned using a steel wire brush and blown clean using high compression
air. Contact a qualified service person for assistance.
NOTE: To observe flame, cabinet front must be removed. Operation of burner can
then be observed through the viewing window on front of chamber (See Figure 1).
4. Keep furnace clean. More frequent cleaning may be required due to excessive
lint from carpeting, bedding material, etc. It is imperative that control
compartments, burners and circulating air passageways of the appliance be
kept clean.
5. The motor is permanently lubricated and requires no oiling.
6. Keep the furnace area clear of any combustible materials, gasoline or other
flammable vapor and liquids.
7. Before operating furnace, check the location of the furnace vent to make sure
it will not be blocked by the opening of any door on the trailer. If it can be
blocked, do not operate the furnace with the door open.
8. Do not restrict the flow of combustion air or the warm air circulation to the
furnace. To do so could cause personal injury and/or death.
9. Never operate the furnace if you smell gas. Do not assume that the smell
of gas in your RV is normal. Any time you detect the odor of gas, it is to
be considered life threatening and corrected immediately. Extinguish any
open flames including cigarettes and evacuate all persons from the vehicle.
Shut off gas supply at LP gas bottle. (See safety notice on front cover of this
manual.)
10. Immediately shut furnace down and call a service agency if furnace cycles
erratically or delays on ignition.
WARNING!
Should overheating occur, or the gas supply fail to shut off, shut off the
manual gas valve to the appliance before shutting off the electrical supply.
11. Never attempt to repair damaged parts. Always have them replaced by a
qualified service agency.
12. Never attempt to repair the furnace yourself. Seek the help of a qualified
service person.
13. Never restrict the ducting installed by your trailer manufacturer. To do so
could cause improper furnace operation.
676 Broadway Street
Dayton, Tennessee 37321
423-775-2131
www.Airxcel.com