Airxcel SUBURBAN SFV-20Q User's Information Manual

USER'S INFORMATION MANUAL
SF-20Q • SF-25Q • SF-30Q • SF-35Q • SF-42Q
SF-20FQ • SF-25FQ • SF-30FQ • SF-35FQ • SF-42FQ
SFV-20Q • SFV-25Q • SFV-30Q • SFV-35Q • SFV-42Q
SFV-20FQ • SFV-25FQ • SFV-30FQ • SFV-35FQ • SFV-42FQ
SH-35 • SH-42 • SH-35F • SH-42F • SHD-2542Q
This book contains instructions covering the operation and maintenance of your furnace. Keep with unit at all times. INSTALLER: LEAVE THIS MANUAL
WITH THE APPLIANCE. CONSUMER: RETAIN THIS MANUAL FOR FUTURE REFERENCE. 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
FIRE, EXPLOSION AND ASPHYXIATION HAZARD
Improper adjustment, alteration, service, maintenance or installation can
cause serious injury or death.
Read and follow instructions and precautions in User's Information Manual
provided with this furnace. Installation and service must be performed by
a qualified service agency or the gas supplier.
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
FIRE OR EXPLOSION HAZARD
Failure to follow safety warning exactly could result in serious injury,
deathor property damage.
— Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.
— WHAT TO DO IF YOU SMELL GAS
• 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 204960
04-12-2013
SUBURBAN GAS FURNACES
For Models

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 before disconnecting for servicing. Proper polarity
must be observed so the furnace motor will run with the proper direction of
rotation to insure correct air delivery (See Wiring Diagram.)
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. 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 properly observe burner operation, the furnace must be removed. This
should only be done by your dealer or a qualified service agency.
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.
676 Broadway Street
Dayton, Tennessee 37321
423-775-2131
www.RVComfort.com