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HVAC
Suburban Furnace Operation (Model: SF and SFV Series)
This article provides basic operation instructions for a Suburban Furnace (Model: SF and SFV Series).
WARNING
!
Use caution when washing the exterior of your
vehicle. Water should not be sprayed directly into the
furnace vent. If water is forced beyond the rain ba ffl es
into the furnace vent, rusting of the furnace could
occur. This could also cause improper combustion.
WARNING
!
Do not operate furnace while vehicle is in motion or
being towed.
WARNING
!
If you do not follow these instructions exactly, a fire
or explosion may result causing property damage,
personal injury or loss of life.
Maintaining The Furnace
Check the gas system for leaks at least once a year. On
the exterior of the coach you will find a furnace cover.
This cover should be removed by authorized service
technicians only.
Clean the complete furnace and air tube passageways
periodically to remove dust, lint, etc. The furnace should
be thoroughly cleaned before the start of each heating
season. Any debris in the system may restrict air flow for
combustion, bind the combustion air impeller, or prevent
the blower motor from running properly.
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. 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 and contact your dealer or a local 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 o ff .
5. Open manual shut-o ff valve (if so equipped) 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: This furnace is equipped with a valve shut-o ff
switch. With switch in OFF position, gas will not
flow to burner nor will the furnace operate.
6. Set thermostat lever to desired setting.
•
Note: Motor will not come on instantly. Allow
approximately 30 seconds for motor operation gas
flow and sparks.
Also, check the burner pilot orifices for debris. Lint
accumulations may cause the blower to become
unbalanced, vibrate, and restrict the ability of the blower
to move air. If lint is blown into the heat exchanger, it
may cause odors or create a fire hazard. Contact an
authorized service technician for annual cleaning.
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.
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.
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.
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.
WHAT TO DO IF YOU SMELL GAS
•
Extinguish any open flame.
•
Evacuate all persons from the vehicle.
•
Shut o ff 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.
DANGER
!