Atwood Mobile Products Hydro Flame 8935 Users Manual

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2015-02-06

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LITERATURE NUMBER

MPD 31232

hydro flame

TM

8900-III-LD Series Furnace
MODELS

8935, 8940

Technical Installation Manual
ENGLISH, FRANCAIS

•Installation

(et Canada)

Effective 3/08
THIS INSTRUCTION MANUAL IS FOR USE BY AN AUTHORIZED SERVICE
TECHNICIAN TO INSTALL AN ATWOOD

- hydro flame

TM

INDEX

FURNACE.

FURNACE SPECIFICATIONS ..............................................................1

..................................................................1
........................................................................1
MINIMUM CLEARANCE TO FLOORBOARDS, WALLS,
& SIMILAR COMBUSTIBLE BUILDING MATERIALS..................................2
SAFETY INFORMATION ..................................................................1-2
FURNACE INSTALLATION ..................................................................2
VENT INSTALLATION - HORIZONTAL & VERTICAL ......................................2
WALL CUTOUT HORIZONTAL & VERTICAL ..............................................2-3
DUCTING HORIZONTAL & VERTICAL ......................................................3
Flexible Ducting ......................................................................3
Hard Ducting ........................................................................3
OPTIONAL INSTALLATION - BOTTOM DISCHARGE KIT ..................................3
GAS CONNECTION ........................................................................3
ELECTRICAL CONNECTIONS ..........................................................3-4
Conductor Sizing Table ............................................................3
12 volt DC Models ..................................................................3
120 volt AC Models ..............................................................3-4
Thermostat ..........................................................................4
CONVERTIBLE GAS CONTROL ............................................................4
Valve Conversion ....................................................................4
Orifice Replacement ................................................................4
SYSTEM CHECK TESTS ....................................................................4
PROPANE GAS PRESSURE ..............................................................4
STATIC PRESSURE ........................................................................5
AC & DC WIRING DIAGRAMS ............................................................5
ILLUSTRATIONS ............................................................................6
REPLACEMENT PARTS LIST & DRAWING ..............................................7

INSTALLER: LEAVE THIS MANUAL WITH APPLIANCE.

DIMENSIONS
WEIGHT

CONSUMER: RETAIN THESE MANUAL FOR FURTHER
REFERENCE.
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 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

 CAUTION

avoid possible
injury and/or property damage

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.

SPECIFICATIONS
MODEL

#

BTU Input
Output BTU/HR
Type Gas
Duct Static Pressure Power Supply (VOLTS)
Watts - WITH OUT DOOR
Amperage
MINIMUM RETURN AIR

*(W.C. = Water Column)
8935

8940

8935

8940

DCLP-III

DCLP-III

ACLC-III

ACLC-III

35,000
27,300
LP
.10˝ W.C.*
12-DC
151
12.6
80 in2

40,000
31,200
LP
.10˝ W.C.*
12-DC
151
12.6
80 in2

35,000
27,300
LP/NAT
.10˝ W.C.*
120-AC
360
3
80 in2

40,000
31,200
LP/NAT
.10˝ W.C.*
120-AC
360
3
80 in2

DIMENSIONS

1

ALL MODELS WITH DOOR

WIDTH

HEIGHT

DEPTH

Casing
Vent

16-1/2˝
5˝

9-1/8˝
5-3/8˝

23-1/2˝ - 26˝

WEIGHT
FURNACE
SHIPPING

38 lbs.
45 lbs.

MINIMUM CLEARANCE TO

NOTE:

FLOORBOARDS, WALLS & SIMILAR COMBUSTIBLE BUILDING MATERIALS*
MUST BE PROVIDED THE FULL LENGTH AND WIDTH OF UNIT
HORIZONTAL

TOP

VERTICAL

TOP

----1/2˝
----1/2˝

BOTTOM
BOTTOM

3/16˝
----0˝

SIDES
SIDES

----1˝
----1˝

REAR
REAR

--1/2˝
--1/2˝

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.
NOTE:

Clearances are specifically for plywood or similar building materials surrounding furnace (i.e. furnace should NOT be located under
furniture or in a closet space where clothing or other material
could be located.)

NOTE:

Efficiency rating is a thermal rating determined under continuous
operating conditions, independent of any installation. Efficiency
rate is given at 77% minimum, actual efficiency rating may be
higher.

 WARNING

CARBON MONOXIDE POISONING

Properly seal vent assembly to prevent carbon monoxide from
entering coach.
• DO NOT draw combustion air from living area. DO NOT vent exhaust
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, WALLS & SIMILAR COMBUSTIBLE BUILDING
MATERIAL. The total unobstructed return air opening size(s) must NOT BE
LESS than specified in SPECIFICATIONS-MINIMUM RETURN AIR. Failure to meet
minimum return air requirements nullifies furnace warranty.

 WARNING

CARBON MONOXIDE POISONING
•

Furnace must be installed and vented to these instructions.

•

Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage.

•

Improper installation location may cause furnace to produce negative pressure, affecting combustion air or venting of other appliances.

The direct high voltage spark ignition generates a radio frequency
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).

STANDARD FURNACE INSTALLATION
General Installation - LOCATION
• Install furnace through an exterior wall.
• DO NOT install furnace near tilt-out rooms, slide-outs, doors or
other projections that could obstruct furnace exhaust.
• Locate furnace near midpoint of coach for single furnace applications.
• Installation must provide accessibility if any repairs are necessary to
the furnace. Failure to meet this requirement will create additional
labor costs that will be the responsibility of the installer.
• DO NOT install vent in areas where projections or door openings
come within 6˝ of vent tube opening.
• DO NOT install furnace in an area where wires, pipes, or other
objects will interfere with the installation or operation of furnace.
• DO NOT directly 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 furnace on cleats, or on a wood or metal panel extending the full
width and depth of furnace plus minimum clearances to combustibles.
• DO NOT use petroleum or citrus type cleaners on plastic parts, as
damage may occur.
• The furnace must always be installed level (front to back, side to
side) to prevent water intrusion into the interior.

 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
maintained.
• 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
construction.
• Protect building materials from degrading from flue gas exhaust.
• Protect furnace electrical components from water.USA AND CANADA FOLLOW ALL APPLICABLE STATE AND LOCAL CODES -

WALL CUTOUT OPTIONS
RECOMMENDED WALL THICKNESS 0˝ to 2-1/2˝
Do not oversize hole - oversizing can result in water leakage.
EXTERIOR WALL CUTOUT (FIG 1)
A
B
C
HORIZONTAL & VERTICAL
3-1/8˝
2-3/8˝
3-1/2˝ DIA HOLE

VENT INSTALLATION (FIG 1)
HORIZONTAL & VERTICAL INSTALLATION

1. Locate vent hole cutout as called out in (FIG 1).
2. Drill 3-1/2˝ diameter hole through side wall of coach.
3. Remove vent and vent ring from furnace.

IN THE ABSENCE OF LOCAL CODES OR REGULATIONS, REFER TO CURRENT STANDARDS OF:

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
•
•

2

4. Insert furnace from backside of wall. Line up hole in wall and furnace.
5. Apply sealant to back of vent ring and vent cap base.
6. Install vent assembly with HOT at top for horizontal and on right
side for vertical installation (FIG 1-1A). Slip vent into combustion air
intake tube. Secure to wall with four (4) screws.
7. Vent must have a minimum 1-1/4” over lap on exhaust tube and a
minimum 1/2˝ overlap on combustion airtube.
8. Horizontal units - secure to floor with two (2) screws through legs
on back of casing. Vertical units use vertical mounting brackets and
self-tapping screws to hold furnace to floor (tabs on control box can
be used also to secure furnace).

VERTICAL
The only ducting option, when using vertical installation, are the top
two ducts and tw ducts off the back of the casing. This is the only
configuration allowed with vertical installation (FIG 3A).

GAS CONNECTION
1. Connect gas line to fitting on top rear 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. DO NOT put sealing
compound on flare fittings.
2. A 3/8˝ flared fitting connection is provided for supply connection to
furnace. The gas supply line of the furnace must be of adequate size
to provide 11˝ W.C. gas pressure. This pressure must be maintained
under maximum flow conditions with all gas appliances in operation.
3. Use two wrenches to hold fitting and flare nut when tightening gas
line to fitting. (FIG. 2)

DUCTING - HORIZONTAL & VERTICAL (FIG 3-4A)
HORIZONTAL
PROPER DUCT INSTALLATION IS CRITICAL TO THE OPERATION OF THIS FURNACE
CONTINUOUS USE MATERIALS RATING

DUCTS 9˝ IN LENGTH OR MORE

4˝ DUCTS LESS THAN 9˝ IN LENGTH
METAL BOOTS LESS THAN 9˝ IN LENGTH

200˚F.
250˚F.
250˚F.

ELECTRICAL CONNECTION

 WARNING

Ducting systems can include any combination of discharge openings, as
long as static pressure and minimum discharge area requirements are met.
ALL MODELS - (also see STATIC PRESSURE TEST)
REQUIRED MINIMUM DISCHARGE
48 IN2
REQUIRED MINIMUM RETURN AIR
80 IN2
• See MINIMUM CLEARANCE TO FLOORBOARDS, WALLS & SIMILAR COMBUSTIBLE
BUILDING MATERIALS.
• Each 4-inch duct opening provides 12 in2 of discharge area. Provide
an extra 12 in2 of non closeable duct discharge area for each
closeable register used.
• Use of 2˝ ducts does not count toward achieving min. discharge req.
Ducting in dead air space with no return air, such as holding tank
areas, does not count toward achieving min. discharge requirements.
• Adjust ducting installation to obtain air rise of 100˚F - 130˚F.

INJURY OR PROPERTY DAMAGE
• Label all wires before disconnecting for service. Wiring errors can
cause improper and dangerous operation.
Verify proper operation after servicing.
• Disconnect electrical power before servicing.

Conductor Sizing Table - MAX. 10% VOLTAGE DROP - (12 VDC)
CURRENT DRAW (AMPS)

8
GAGE

18
16
14

9

10

15

20

MAX. LENGTH OF SAE CONDUCTOR (IN FEET) FROM SOURCE TO DEVICE

21
33
52

Flexible Ducting System

19
29
46

17
26
41

11
17
28

9
13
21

 CAUTION

When designing Flexible Duct Systems:
• avoid sharp bends or crushed ducts
• stretch all ducts and run them directly to outlets, keeping quantity and angles of bends to a minimum

PROPERTY DAMAGE
• This connection is for low-voltage battery or direct current only. Do
not connect to 120- or 240- volts AC.

1. Remove knockout plates from desired outlets.
2. Attach duct adapter to each opening, by inserting flange over casing,
locking tab into casing slot and turning adapter 90˚.
3. Attach and secure FOUR-INCH flexible ducts to adapters.
4. Run ducts to desired location within RV, secure to registers.
5. Additional ducting may be needed to maintain static pressure.

This unit is designed for negative ground 12 volt DC ONLY. Polarity
must be observed so furnace motor will run in proper rotation. DO NOT
attempt to alter to a positive ground system.
12 VOLT DC MODELS

Route 12 volt DC and thermostat leads to left side of control box. Use
a minimum of 18 GA wire to minimize voltage drop. The furnace must
be installed so electrical components are protected from water. To
make electrical connections: see WIRING DIAGRAM FIG 5
1. Route wiring to left side of furnace.
2. Connect red wire to positive side of power supply.
3. Connect yellow wire to grounded side of power supply.
4. Connect blue wire marked positive thermostat to + side wire of
thermostat using 22-18 GA stranded wire.
5. Connect the other blue wire to the other thermostat lead using
minimum 22-18 GA stranded wire.
See instruction with thermostat for complete wiring directions.

Hard Ducting Floor System
When designing Hard Duct Systems:
• undersize ducting will cause high temperature limiting
• oversize ducting will cause inadequate air flow from registers
• when hard ducting is 1-1/2˝ in depth, an additional flex duct may
be needed to maintain installation static requirements
• DO NOT install floor registers within 2 feet of return air openings.
OPTIONAL INSTALLATION

(FIG 5)

- BOTTOM DISCHARGE (FIG 4-4)

1. Remove bottom discharge cover plate. This ducting option must
be connected to a ducting system. FIG 3 (parts breakdown) #40 GASKET AND PLENUM PLATE KIT is available when attaching furnace.
FLOOR CUTOUT
2. If cutout is required:
BOTTOM DISCHARGE
A
B
C
D
HORIZONTAL-WITHOUT DOOR (FIG 4) 18-20 1/2˝
5-1/2˝ 10-1/2˝ 3/4˝

For best furnace performance when power supply is from a converter
equipped with a charging port, wire the converter to furnace parallel
with battery. This provides consistent voltage to furnace, increasing
component life, filtering power surges and AC spikes

3. Fasten plenum plate (4-E) over floor cutout. If a gasket and
plenum plate are not used, seal furnace to hard duct system making sure seal is air-tight, continue with STEP 5.
4. Position gasket (4-F) on plenum plate.
5. Set furnace on gasket, gasket must remains in position.
Use additional ducting to maintain correct static pressure.

120 VOLT AC MODELS
Route 120 volt AC and thermostat leads to wires located on the left
side of control box using a minimum of 18 GA wire. The furnace must
be installed so electrical components are protected from water. To
make electrical connections see WIRING DIAGRAM FIG 5.
3

1. Route wiring to left side of furnace.
2. Remove junction box cover.
3. Connect 120 white wire to furnace 120 white wire.
4. Connect 120 black wire to furnace 120 black wire.
5. Connect ground wire to furnace green ground wire.
After field hookups have been made, put wire connections into
furnace junction box and replace cover.
6. Connect thermostat leads to the two blue furnace thermostat leads.
NOTE: Furnace is equipped with a 120 volt AC motor. All other
electrical component parts are supplied with power from a transformer inside the furnace at 24 volts AC.
NOTE: A 120 volt model can also be supplied with a 30 inch
power cord attached from the factory supplied with a molded plug
with ground pin.
NOTE: DC units are supplied with a power switch
which when turned OFF for servicing will remove power through the
furnace wiring. Switch must be in ON position for furnace to operate.
See FIG 3-G. AC units switch is in valve circuit only.

ORIFICE REPLACEMENT

1. Unit will need to be removed if installed, if not start with step #2.
2. Remove burner cover and extended manifold.
3. Remove burner assembly from control box.
4. Remove two screws holding burner head in place.
5. Use a 7/16˝ socket to remove orifice and replace correct orifice corresponding to type of gas required, which corresponds to regulator
plug setting FIG 6.
6. Replace burner head with two screws.
7. Reinstall burner assembly. Burner assembly must seal tight against
control box.
8. Install extended manifold and apply thread sealant to threads going
into gas valve.
9. After converting furnace, IN PLAIN SIGHT, put “CONVERTED” sticker (provided in your conversion packet) on rating label.

SYSTEM CHECKS

 WARNING

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.

FIRE OR EXPLOSION
• Never check for leaks with an open flame.

DIAGNOSTIC CHART

THERMOSTAT INSTALLATION

FAULT

The thermostat is very sensitive. HANDLE WITH CARE AT ALL TIMES.
Locate thermostat 48˝ to 54˝ above floor on an INTERIOR wall away from
areas of abnormal heat or cold. EXTERIOR wall location must have a 3/4˝
spacer between thermostat and exterior wall.
Follow manufacturer’s installation instructions provided with thermostat. When a thermostat is not supplied use a thermostat rated for 12
VDC or 24 VAC minimum lamp.

CONVERTIBLE GAS CONTROL

PROPANE (LP)
NATURAL (NAT)
PROPANE (LP)
NATURAL (NAT)

BTU/HR
40,000
40,000
35,000
35,000

The furnace and any individual shut-off valve must be disconnected
from gas supply piping system during any pressure testing of system
at test pressures of more than 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.
The entire piping system must be maintained within a range of 10-14˝
W.C. when all appliances are in operation. Test the gas connections for
leakage with a leak test solution.

FIG 6

LINE PRESSURE

VALVE REGULATOR

DRILL SIZE

11˝ W.C.
7˝ W.C.
11˝ W.C.
7˝ W.C.

10.5˝ W.C.
3.5˝ W.C.
10.5˝ W.C.
3.5˝ W.C.

49P
30N
51P
32N

Steady on, no flashing
1 flash with 3-second pause
2 flashes with 3-second pause
3 flashes with 3-second pause

PROPANE GAS PRESSURE TEST

LC MODEL UNITS come equipped with a convertible gas control. Each
unit is supplied with two main burner orifices. One will be in place, the
other will be attached to blower housing cover. Each orifice will be
clearly marked with a drill size as shown below.
GAS TYPE

LED INDICATION

Internal Circuit Board Failure
Limit switch/Airflow problems
Flame Sense Fault
Ignition Lockout Fault

STATIC PRESSURE TEST
CASING STATIC PRESSURE TABLE

If duct static pressure cannot be set, casing static pressure should not exceed
the values listed below when taken cold.

The pressure settings of the convertible valve are set for natural gas
NAT 3.5˝ W.C. or LP 10.5˝ W.C. and are not adjustable. Use Loctite
#RC609 on orifice threads when installing a new orifice. 1/8˝ NPT plug
is provided upstream of gas connections for checking gas pressure.

DUCTING SYSTEM

OPERATING VOLTS

FLEXIBLE

HARD

DC MODELS
AC MODELS

12
120

0.25˝ W.C.
0.25˝ W.C.

0.35˝ W.C.
0.35˝ W.C.

NOTE:

(FIG. 6)
1. Check exposed section on side of adjustment plug to determine
whether it is set for natural or propane. NAT is stamped on one end
and LP is stamped on the other end of plug. The types of gas in use
will be showing right side up.
2. Unscrew plug and remove from valve tower. DO NOT remove rod from
tower or make any adjustments.
3. A. When set for LP and NAT is required:
Rotate plug and replace into valve tower.
NAT SHOULD NOW BE VISABLE FIG 6
B. When set for NAT and LP is required:
Rotate plug and replace into valve tower.
LP SHOULD NOW BE VISABLE FIG 6
4. Check rod for proper positioning while tightening plug into tower.
The plug, which has been factory calibrated for this valve only,
should be reinstalled finger tight. DO NOT USE PLUG ON ANY OTHER VALVE.
INSTALL ONLY THE CORRECT MAIN BURNER ORIFICE FOR TYPE OF GAS BEING USED.
VALVE CONVERSION

For maximum performance and reliability refer to Installation Addendum
for manufacturer’s recommendations and specifications.

Voltage greater than indicated will cause higher static readings.
Reducing the number of duct turns and stretching ducts will increase
air flow and reduce static pressure. Adding ducts or increasing discharge system (hard ducting) will also reduce static pressure.
NOTE: Special tool required to take casing static pressure. Location for
Static Pressure Tap for casing is located on back of casing (top left
corner) FIG 3.

4

A

Valve Assembly
(Vanne)

Valve Conversion
(Vanne de conversion)

6

5 8900-III DC WIRING

NOTE: DC Models only
ON/OFF Switch may be separate or combined in Circuit
Breaker.

GROUND

ELECTRODE

MOTOR
BLACK

YELLOW

RED

RED

ON/OFF ON
SWITCH OFF

VALVE

SAIL
SWITCH

YELLOW

12V DC
SUPPLY

CIRCUIT
BREAKER

RED
YELLOW
BLUE
BLUE

BLW PWR

+ 12V DC
NEG
+THERMO
THERMO

THERMOSTAT

IGNITION
BOARD

RED
WHITE

LIMIT
SWITCH

BLUE
BLUE

RED
YELLOW

HIGH TENSION

IMPORTANT: If any original wire has to be replaced, it must
be replaced with type 105 C or its equivalent.
Terminal Block on 85 Models only.

CUSTOMER SUPPLIED WIRE

5 8900-III AC WIRING
PICTORIAL DIAGRAM

SCHEMATIC DIAGRAM

Motor

Electrode

GND

120VAC
Green

Brown

White

Black

Black

120 VAC Green

Green

120 VAC Black
120 VAC White

Yellow

SS

t

IG

LS
t

Green

PS

GND

TH

HV

EL

R

Valve

L1

DO NOT
1 + GRIP + 4
2 HERE 3

3 3
White 2 2
Black
1 1

Transformer
Blue

3

Thermo Blue

Yellow

Sail
Switch

V1
GV

MOT
White

Black
Black
Yellow

Yellow

AC Capacitor Motor Run

White

+Thermo Blue
Black

2
3

24 VAC
TF

Red
Off
On

IND

CAP

P/S

Ignition Control

Blue

HV
GND
GV
EL
IG
MOT
IND

Limit Switch
Blue

1 2 3 4 5 6

Red
Green
HIGH TENSION

=
=
=
=
=
=
=

High Voltage
Ground
Gas Valve
Electrode
Egnition Control
Blower Motor
IG Blower Motor Output

IMPORTANT If any original wire has to be replaced, it must bereplaced with the type 105 C or its equivilant.

5

PS
SS
TH
LS
CAP
P/S
TF
V1

=
=
=
=
=
=
=
=

IG Power Input
Sail Switch
Thermostat
Limit Switch
Capiacitor
Power Switch On/Off
Transformer
Valve Control

6

1A

AVANT DU VEHICULE

1
B
C

A

(EX

LE

MUST USE

Gas Line
(Conduite de gaz)

OU

RIE TSID
UR E
DU RV
VE
HIC
U

)

G

3

3A

2
MU

S

MU
F
E

4

D

A
C

MUST USE

TE

B

6

S
TU

U
ST

E

SE

hydro flame

TM

8900-III-LD Series
Furnace Models 8935, 8940

33

20
31
35

43

23

4
13

34

29

17

52

36

3

25

2
18

7
24

1

50

40

6

32

30

9

A

8

5

28

42
51

39

DRAWING

2
3
4
5
6
7
8
9
13
16
17
18
20
23
24
25
28
29
30
31
32
33
34
35

#

DESCRIPTION OF PARTS

Thermostat - specify color
Duct Cover Plate
Duct Adapter
Orifice — SPECIFY GAS & BTU
Combustion Wheel
Motor Gasket
Valve DC
Valve Repl Coil DC
Electronic Ignition Board DC Kit
Valve AC
Motor DC
Sail Switch
Circuit Breaker DC
Junction Box Asmbly AC
Motor Capacitor AC
Element Exhaust Wall Gasket
Valve Replacement Coil AC
Blower Wheel
Electrode
Limit Switch
Burner Assembly
Element Assembly
Electronic Ignition Board AC Kit
Transformer Assembly AC

16

36
37
39
40
42
43
50
51
52

Motor AC
High Voltage Wire
Vent Assembly (specify model) 35/40
Gasket & Plate Assembly
Combustion Cover
Extended Manifold (specify)
Motor Wall - Specify Model
Vent Ring
Gas Line Gasket

N˚ SUR LE SCHÉMA DESCRIPTION DES PIÈCES
2
3
4
5
6
7
8
9
13
16
17
18
20
23

Thermostat - spécifiez la couleur
Couvercle de l'ouverture de branchement du conduit
Adaptateur de conduit
Lumière — PRECISEZ LE CALIBRE
Ventilateur d'air de combustion
Joint d'étanchéité du moteur
Soupape CC
Bobine CC de rechange pour soupape
Module CC de plaquette d'allumage électronique
Soupape CA
Moteur CC
Interrupteur à abattant
Coupe-circuit CC
Boîte de dérivation CA
7

24
25
28
29
30
31
32
33
34
35
36
37
39
40
42
43
50
51
52

Condensateur de moteur CA
Joint d'étanchéité entre la paroi et le système d'évacuation de l'élément de chauffage
Bobine CA de rechange pour soupape
Ventilateur
Électrode
Rupteur thermique
Brûleur
Elément
Module CA de plaquette d'allumage électronique
Transformateur CA
Moteur CA
Fil à haute tension
Ventilation (préciser le modèle) 35/40
Ensemble joint d'étanchéité et plaque
Panneau d'air de combustion & anneau de ventilation
Distributeur (préciser)
Mur du moteur – identifier le modèle
Anneau
Joint d’étanchéité du tuyau de gaz



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