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Atwood 8935 Technical Installation Manual

8900-iii series
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ENGLISH, FRANCAIS
THIS INSTRUCTION MANUAL IS FOR USE BY AN AUTHORIZED SERVICE
TECHNICIAN TO INSTALL AN ATWOOD
:
INSTALLER
LEAVE THIS MANUAL WITH APPLIANCE
:
CONSUMER
RETAIN THIS MANUAL FOR FURTHER REF
.
ERENCE
This furnace design has been certified for installation in recre-
ation vehicles as a MSP Category III furnace. Follow this installa-
tion instruction to insure safe operation of the furnace. Failure to
install furnace according to this installation instruction nullifies
the furnace warranty.
SAFETY ALERT SYMBOLS
Safety Symbols alerting you to potential personal safety hazards.
Obey all safety messages following these symbols.
WARNING
avoid possible
injury or death
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 the vicinity of this or any
other appliance.
WHAT TO DO IF YOU SMELL GAS
• Evacuate all persons from vehicle.
• Shut off gas supply at gas container or source.
• Do not touch any electrical switch, or use any
phone or radio in vehicle.
• Do not start vehicle's engine or electric generator.
• Contact 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 gas supply until gas leak(s) has
been repaired.
Installation and service must be performed by a
qualified Service Technician, Service Center or
gas supplier.
(et Canada)
- hydro flame
FURNACE
TM
CAUTION
avoid possible
injury and/or property damage
.
FURNACE SPECIFICATIONS
DIMENSIONS
.
........................................................................1
WEIGHT
-
MINIMUM CLEARANCE TO FLOORBOARDS
&
SIMILAR COMBUSTIBLE BUILDING MATERIALS
SAFETY INFORMATION
FURNACE INSTALLATION
WALL CUTOUT
HORIZONTAL & VERTICAL
DUCTING
HORIZONTAL & VERTICAL
Flexible Ducting
........................................................................
Hard Ducting
OPTIONAL INSTALLATION
........................................................................
GAS CONNECTION
ELECTRICAL CONNECTIONS
Conductor Sizing Table
12 volt DC Models
120 volt AC Models
..........................................................................
Thermostat
DOOR INSTALLATION
RAIN SHIELD INSTALLATION
DRAFT CAP ASSEMBLY
CONVERTIBLE GAS CONTROL
Valve Conversion
Orifice Replacement
SYSTEM CHECK TESTS
PROPANE GAS PRESSURE
........................................................................
STATIC PRESSURE
&
AC
DC WIRING DIAGRAMS
............................................................................
ILLUSTRATIONS
REPLACEMENT PARTS LIST
SPECIFICATIONS
#
MODEL
BTU Input
Output BTU/HR
Type Gas
Duct Static Pressure -
Power Supply (
)
VOLTS
Watts
Amperage
MINIMUM RETURN AIR
DIMENSIONS
ALL MODELS WITH DOOR
Casing
Door
Recess Bezel
1
LITERATURE NUMBER
hydro flame
8900-III Series Furnace
MODELS
Technical Installation Manual
INDEX
..............................................................1
..................................................................1
,
,
WALLS
..................................
..................................................................
..................................................................
..............................................
........................................................
......................................................................
..................................
-
BOTTOM DISCHARGE KIT
..........................................................
............................................................
................................................................
................................................................
..........................................
HORIZONTAL & VERTICAL
............................................................
..................................................................
........................................................
....................................................................
................................................................
....................................................................
..............................................................
............................................................
..............................................
&
DRAWING
8935
8940
-
-
DCLP
III
DCLP
III
35,000
40,000
27,300
31,200
LP
LP
.10˝ W.C.*
.10˝ W.C.
12-DC
12-DC
132
132
11
11
80 in
2
80 in
2
WIDTH
HEIGHT
DEPTH
16-1/2˝
9-1/8˝
23-1/2˝
19-1/4˝
9-1/4˝
1/4˝
20-9/16˝
11-1/2˝
MPD 32046
®
8935, 8940
•Installation
Effective 11/27/06
2
1-2
2
-
2
3
3
3
3
3
3
3-4
3
3-4
4
4
4
4
4
4-5
4
5
5
5
5
5
6
7
*
(W.C. = Water Column)
8935
8940
-
-
ACLC
III
ACLC
III
35,000
40,000
27,300
31,200
LP/NAT
LP/NAT
.10˝ W.C.
.10˝ W.C.
120-AC
120-AC
360
360
3
3
80 in
2
80 in
2
WEIGHT
38 lbs.
FURNACE
45 lbs.
SHIPPING

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  Summary of Contents for Atwood 8935

  • Page 1 ERENCE This furnace design has been certified for installation in recre- ation vehicles as a MSP Category III furnace. Follow this installa- tion instruction to insure safe operation of the furnace. Failure to install furnace according to this installation instruction nullifies the furnace warranty.
  • Page 2: Carbon Monoxide Poisoning

    ------0˝ VERTICAL BOTTOM Spacing of 1/4˝ to ducting within 3 feet of furnace must be provided unless UL listed wire bound vinyl ducts are used. All ducting material should be rated for continuous use at 200˚F. : Clearances are specifically for plywood or similar building materi- NOTE als surrounding furnace (i.e.
  • Page 3: Personal Injury

    ( GAS CONNECTION 1. Connect gas line to brass fitting on right side of furnace. Be sure all male pipe threads, other than flare fittings, are treated with a sealing compound resistant to the action of propane (LP) gas.
  • Page 4 1-D. AC units power switch is in valve circuit only. POWER SUPPLY Atwood Mobile Products highly recommends the use of an electronic (solid state) converter with clean, clear power output. This will assure the life of the electronic controls and motor life could be extended as much as 500% beyond typical linear converter applications.
  • Page 5 1/2 PSI. Before furnace is connected, piping systems must be tested to be leak free. The test must maintain air pressure of at least 6˝ of mercury or 3 PSI for at least 10 minutes.
  • Page 6 Access to Static Pressure Tap (Accès à l’orifice Statique) 1-1/4" 1-1/4" AVANT DU VEHICULE...
  • Page 7 8900-III Series Furnace Models 8935, 8940 DRAWING DESCRIPTION OF PARTS Relay Thermostat - specify color Duct Cover Plate Duct Adapter Orifice — SPECIFY GAS & BTU Combustion Wheel Motor Gasket Valve DC Valve Repl Coil DC Gas Inlet Plug...

This manual is also suitable for:

8940