Warning Carbon Monoxide Poisoning; Critical Installation Warnings - Atwood hydro flame 8900-III Series Technical Installation Manual

MINIMUM CLEARANCE TO
FLOORBOARDS, WALLS & SIMILAR COMBUSTIBLE BUILDING MATERIALS*
MUST BE PROVIDED THE FULL LENGTH AND WIDTH OF UNIT
------1/2˝ --------3/16˝
TOP BOTTOM
NO VERTICAL INSTALLATION ON MODELS WITHOUT DOORS
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. furnace should
furniture or in a closet space where clothing or other material
could be located.)
: Efficiency rating is a thermal rating determined under continuous
NOTE
operating conditions, independent of any installation. Efficiency
rate is given at 77% minimum, actual efficiency rating may be
higher.
*When furnaces are installed to minimum clearances, an additional
16 in 2 of return air must be provided to blower side of furnace, or a
2˝ clearance the full length and height on blower side must be main-
tained.
CARBON MONOXIDE POISONING
Furnace must be installed and vented to these instructions.
•
Improper installation, adjustment, alteration, service or mainte-
•
nance can cause injury or property damage.
Improper installation location may cause furnace to produce neg-
•
ative pressure, affecting combustion air or venting of other appli-
ances.

CRITICAL INSTALLATION WARNINGS

• install furnace on material that restricts return air, like carpet
DO NOT
or any soft material such as vinyl.
• install furnace where clearance to combustibles cannot be
DO NOT
maintained.
• modify furnace in any way.
DO NOT
• alter furnace for a positive grounding system.
DO NOT
• HI-POT furnace unless electronic ignition system (circuit
DO NOT
board) has been disconnected.
• use battery charger to supply power to DC model furnace
DO NOT
even when testing.
• 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
DO NOT
construction.
• Protect building materials from degrading from flue gas exhaust.
• Protect furnace electrical components from water.
----------1˝ --------1/2˝
SIDES REAR
be located under
NOT
WARNING
-
USA AND CANADA FOLLOW ALL APPLICABLE STATE AND LOCAL CODES
IN THE ABSENCE OF LOCAL CODES OR REGULATIONS
Recreation Vehicles ANSI A119.2/NFPA 501C.
•
National Fuel Gas Code ANSI Z223.1 and/or CAN/CGA B149
•
Installation Codes
Federal Mobile Home Construction & Safety Standard, Title 24 CFR,
•
part 3280, or when this Standard is not applicable, the Standard for
Manufactured Home Installations (Manufactured Home Sites,
Communities and Set-Ups), ANSI A255.1 and/or CAN/CSA-Z240 MH
Series, Mobile Homes.
Ground - National Electrical Code ANSI/NFPA No. 70 and/or CSA C22.1
•
Park Trailers ANSI 119.5
•
: The direct high voltage spark ignition generates a radio frequency
NOTE
that could cause interference with other microprocessor based
equipment. Locate equipment at least five feet (5') from furnace
location. If this distance cannot be maintained, purchase MPD
37773 (a shielded high voltage lead).
CARBON MONOXIDE POISONING
Properly seal door, adjust draft cap to prevent carbon monoxide
•
from entering coach.
draw
combustion air from living area.
DO NOT
•
air into the living area or an enclosed porch.
Return air is supplied through openings in furnace casing. All return air
passages must be kept clear for furnace to function properly. Refer to
MINIMUM CLEARANCE TO FLOORBOARDS
. The total unobstructed return air opening size(s) must
MATERIAL
than specified in
LESS SPECIFICATIONS
minimum return air requirements nullifies furnace warranty.
STANDARD FURNACE INSTALLATION
General Installation -
• Install furnace through an exterior wall.
• install furnace near tilt-out rooms, slide-outs, doors or
DO NOT
other projections that could obstruct furnace exhaust.
• Locate furnace near midpoint of coach for single furnace applica-
tions.
• install vent in areas where projections or door openings
DO NOT
come within 6˝ of vent tube opening.
• install furnace in an area where wires, pipes, or other
DO NOT
objects will interfere with the installation or operation of furnace.
• It is not recommended to install furnace on material that restricts
return air, such as directly on carpet, or soft material (like vinyl).
• If you must install furnace on carpet or soft material, install fur-
nace on cleats, or on a wood or metal panel extending the full
width and depth of furnace plus minimum clearances to com-
bustibles.
WALL CUTOUT
RECOMMENDED MAXIMUM WALL THICKNESS
-
DO NOT OVERSIZE HOLE OVER SIZING CAN RESULT IN WATER LEAKAGE
EXTERIOR WALL CUTOUT
( )
RECESS BEZEL FIG 1
*To cut rounded corners: with radius blocks 2-1/8˝ radius
2
,
REFER TO CURRENT STANDARDS OF
WARNING
DO NOT
,
WALLS & SIMILAR COMBUSTIBLE BUILDING
- . Failure to meet
MINIMUM RETURN AIR
LOCATION
2-1/2˝
A B
19-1/2˝ 9-7/8˝
without radius blocks a 45˚ angle
-
:
vent exhaust
NOT BE
C
*