1120 North Main Street • Elkhart, IN 46514
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This instruction manual is for use by an authorized service technician to
install an Atwood – hydro flame™ furnace. Should you require further
information, contact your dealer or Atwood Mobile Products LLC.
This furnace design has been certified for installation in recreation
vehicles as a MSP Category III furnace. Follow this installation
instruction to insure safe operation of the furnace. Failure to install
furnace according to this installation instruction nullifies the furnace
TO THE INSTALLER:
TO THE CONSUMER:
SAFETY ALERT SYMBOLS
Safety Symbols alerting you to potential personal safety
hazards obey all safety messages following these symbols
Avoid possible injury or
FIRE OR EXPLOSION
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.
FOR YOUR SAFETY
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
Do not touch any electrical switch, or use any
phone or radio in the vehicle.
Do not start the vehicle's engine or electric
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
Do not turn on the gas supply until the gas
leak(s) has been repaired.
A qualified Service Technician
Service Center or gas supplier must perform
installation and service.
LEAVE THIS MANUAL WITH
RETAIN THIS MANUAL FOR
Avoid possible injury
and/or property damage
Installation of this appliance must be made in accordance with the written
instructions provided in this manual. No agent, representative or
employee of Atwood or other person has the authority to change, modify
or waive and provision of the instructions contained in this manual.
Avoid possible injury or death
Improper installation, adjustment, alteration, service or maintenance can
cause property damage, personal injury or loss of life. Refer to the
installation instructions and/or owner's manual provided with this
appliance. A qualified installer, service agency or the gas supplier must
perform installation and service.
FOR YOUR SAFETY
Do not store or use gasoline or other flammable vapors and liquids in the
vicinity of this or any other appliance.
Be sure the furnace and all ignition systems are "off" during any type of
refueling and while vehicle is in motion or being towed.
CRITICAL INSTALLATION WARNINGS
DO NOT install furnace on material that restricts return air, like carpet
or any soft material such as vinyl.
DO NOT install furnace where clearance to combustibles cannot be
DO NOT modify furnace in any way.
DO NOT alter furnace for a positive grounding system.
DO NOT hi pot furnace unless electronic ignition system (circuit
board) has been disconnected.
DO NOT use battery charger to supply power to DC model furnace
even when testing.
DO NOT use 120-volt AC current with DC models.
DO NOT use furnace cabinet area as a storage compartment.
DO NOT vent furnace with venting system serving another appliance.
DO NOT vent furnace to an outside enclosed porch area.
DO NOT use for temporary heating of buildings or structures under
Protect building materials from degrading from flue gas exhaust.
Protect furnace electrical components from water.
Compartment must be closed when operating unit.
Should the gas supply fail to shut off or if overheating occurs, shut off
the gas valve to the furnace before shutting off the electrical supply.
DO NOT use this furnace if any part has been under water.
All sheet metal edges are sharp care should be taken when
handling or brushing up against them.
Literature number 31971
AFM Series Furnaces Models
Technical Installation Manual