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NHTSA ID Number: 10200116

Manufacturer Communication Number: 32471 IOM M EF 8

TSB/Document Date: 2021-08-09


Summary

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 is 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.


95
2**
130
1**
150
1/0**
170
2/0**
195
3/0**
225
4/0**
260

This furnace is designed for negative ground 12 volts DC only. DO
NOT attempt to alter furnace for a positive ground system or connect
the furnace to 120 volts AC. Damage to furnace components will occur
and warranty will be voided.
Use the minimum wire size shown in the table above to minimize
voltage drop. Furnace MUST be installed so electrical components are
protected from water and other installation debris. To make electrical
connections see wiring diagrams.
For best furnace performance when power supply is from a converter
equipped with a charging port, wire converter to furnace in parallel with
battery. This provides consistent voltage to furnace, increasing
component life, filtering power surges and AC spikes.
All units are supplied with a power switch which is to be turned off
during servicing removing power to the furnace wiring. Switch must be
in the ON position for furnace to operate.

Route wiring to the furnace.
Furnace
Power Supply
Red Wire +12 Volt DC
+12 Volt DC
Black Wire -12 Volt DC
-12 Volts (Ground)
Blue Thermostat +12VDC
+12 Volts (Thermostat)
Blue Thermostat
-12 Volts (Thermostat)
1. Wiring for thermostat using 22 AWG minimum stranded wire.
2. All wiring must be installed so the electrical components and
connection are protected from water.
3. If a unit is supplied with a connector block on the field connections
the mating parts should be used.
Furnace Connector
Field Connector
AMP 1-480705-0
AMP 1-480704-0
Furnace Terminals
Field Terminals
AMP 7708496
AMP 770020-1

THERMOSTAT INSTALLATION


1.

2.
3.
4.

Purchase a thermostat rated for 12 VDC or 24 VAC, Minimum 1 AMP
rating.
Be sure all electrical power to the furnace is disconnected.
The thermostats are very sensitive, HANDLE WITH CARE AT ALL
TIMES.
Pick a dry area where air circulation is good.
Do not install the thermostat where there are other heating loads: such
as direct sunlight, heat producing appliances (television, radio, wall
lamp, etc.) furnace or air conditioner output registers.
Locate thermostat 48” to 54” above main living area floor on an
INTERIOR wall when possible.
EXTERIOR wall location must have a 3/4” spacer between thermostat
and exterior wall for proper room air sensing.
Follow manufacture’s installation instructions provided with thermostat.
OPERATING INSTRUCTIONS

Maximum Ampacity
at Conductor
Insulation
Temperature Rating
of: 105° C/125° C
7.5
10
15
20
25
50
70
100
120
150

WARNING
FIRE OR EXPLOSION
Do not operate furnace while vehicle is in motion or being towed.

During initial firing of this furnace, a burn-off of excess oils
remaining from manufacturing process may cause smoking or
fumes for 5-10 minutes.
NOTE: if furnace should lock out, the blower will go off in 3
minutes and remain off until unit is reset by reactivating the
thermostat.

STOP! Read Users Information Manual supplied with furnace.
1. Turn the manual valve (if so equipped) or the valve at the outside
LP tank to the “OFF” position DO NOT force. NOTE: This furnace
is equipped with a valve shut-off switch with switch in “OFF”
position. Gas will not flow to burner nor will the furnace operate.
Turn switch to “ON” position.

7

2.

3.

4.

5.
6.

7.
8.

TO SHUT DOWN UNIT

Set thermostat above room temperature to begin blower
operation. A slight delay will occur before the blower comes on.
Allow blower to run for 1 minute for combustion chamber purge
cycle. If blower does not come on or stops before ignition cycle,
shut down unit and contact your dealer or a local recreational
vehicle service agency.
After 1 minute, the blower may not be running at this time, move
thermostat lever below room temperature. Wait approximately 2
minutes for blower to go off.
Open manual shut-off valve (if so equipped) or the valve at the
outside LP tank. Correct operation characteristics depend on the
valve being positioned fully open. Never attempt to operate with a
valve partially closed. Turn shut-off switch to “ON” position.
Set thermostat lever to desired setting. If set above room
temperature, blower will come on.
Allow 30 seconds for main burner to light after blower comes on.
This furnace is equipped with an ignition device which
automatically lights the burner. DO NOT try to light the burner by
hand.
If burner does not light, repeat Steps 1 through 5.
If after three (3) attempts with no ignition, shut down the unit and
contact your dealer or a local recreational vehicle service agency.
Do not continue to cycle furnace through thermostat in an attempt
to get ignition.

1.
2.

Set the thermostat to lowest setting, move lever to “OFF” position.
Turn manual shut off valve (if so equipped) to the “OFF” position.
Do not force.

IGNITION CONTROL DIAGNOSTIC CODES
The following charts give the diagnostic codes given by the ignition
control when faults are present.

A soft lockout is a condition that is timed and will make additional
attempts to correct the problem. A hard lookout requires resetting
of the thermostat or turning the power switch off, then back on.

STANDARD 3 TRIES FOR IGNITION CONTROLS
DIAGNOSTIC CHART

WIRING AND LADDER DIAGRAM

8

FAULT

LED INDICATION

LOCKOUT

Internal Circuit Board
Failure

Steady On, No Flashing

Hard

Limit Switch/Airflow
Problems

1-Flash With 3-Second
Pause

Soft

Flame Sense Fault

2-Flashes With 3-Second
Pause

Hard

Ignition Lockout Fault

3-Flashes With 3-Second
Pause

Soft (1hr.
retry)

9

10

11

12

Figure 1 Large Paddle Kit 31093

Figure 2 Small Paddle Kit 31094

Figure 4 Valve Kit 31096

Figure 3 Valve Kit 31098

Figure 5 Valve Kit 31097

Figure 6 Electrode Adjustment

13

littérature nombre 32471
hydro flame™
AFM série fours modèles
AFMD16, AFMD20, AFMD25
AFMD30, AFMD35
1120 North Main Street • Elkhart, IN 46514
USA & Canada : 1-866-869-3118
Internet: http://www.atwoodmobile.com

technique manuel d'Installation

Anglais, Français (et Canada)
Ce manuel doit être utilisé par un technicien agréé pour installer un
Atwood – hydro flamme™ four. Si vous désirez de plus amples
renseignements, contactez votre revendeur ou Atwood Mobile
Products LLC.
Cette conception de la fournaise a été certifiée pour l'installation dans
un véhicule récréatif comme une fournaise de MSP catégorie III.
Suivez les instructions d'installation pour assurer un fonctionnement
sécuritaire du fourneau. Ne pas installer le four selon les instructions
d'installation annule la garantie de la fournaise.

Efficace 8/15

AVERTISSEMENT
Installation de cet appareil doit être faite selon les instructions écrites
fournies dans ce manuel. Aucun agent, de représentant ou d'employé
Atwood ou toute autre personne n'a le pouvoir de changer, modifier ou
supprimer une disposition quelconque des instructions contenues dans
ce manuel.

AVERTISSEMENT
Pour l'installateur : Laissez ce guide avec l'appareil.
Pour le consommateur : Conserver ce manuel pour

Éviter les blessures et la mort
Une mauvaise installation, adaptation, altération, service ou entretien
peut causer des dommages matériels, des blessures ou des pertes en
vies humaines. Consulter les instructions d'installation et manuel du
propriétaire fourni avec cet appareil. Un installateur qualifié, une
Agence de service ou le fournisseur de gaz doit effectuer l'installation
et l'entretien.

référence FUTURE.
SYMBOLES d'alerte sécurité
sécurité symboles vous alerter des dangers potentiels de
sécurité personnelle respectez tous les messages de sécurité
suite à ces symboles

AVERTISSEMENT
Éviter les blessures et la mort

POUR VOTRE SÉCURITÉ
Ne pas stocker ou utiliser d'essence ou d'autres vapeurs inflammables
et à proximité de cet appareil ou tout autre appareil.

ATTENTION
Éviter d'éventuelles blessures
ou des dommages matériels

AVERTISSEMENT

AVERTISSEMENT
INCENDIE OU EXPLOSION

Veillez à ce que le four et tous les systèmes d'allumage sont « off » au
cours de n'importe quel type de ravitaillement, et alors que le véhicule
est en mouvement ou en remorque.

Si les informations contenues dans ce manuel ne sont pas
suivies exactement, un incendie ou une explosion peut
entraîner en causant des dommages matériels, des blessures
ou des pertes en vies humaines.

AVERTISSEMENTS CONCERNANT L'INSTALLATION
CRITIQUE

POUR VOTRE SÉCURITÉ
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ :

Éteignez toute flamme nue.

Évacuez tous les occupants du véhicule.

Coupez l'alimentation en gaz à la source ou le
cylindre de gaz.

Ne pas toucher aucun commutateur électrique, ou
utiliser n'importe quel téléphone ou la radio dans le
véhicule.

Ne démarrez pas le moteur du véhicule ou
générateur électrique.

Contacter le gaz le plus proche fournisseur ou un
technicien qualifié pour les réparations.

Si vous ne pouvez accéder à un fournisseur de gaz
ou un technicien qualifié, contactez le service des
incendies le plus proche.












Ne pas allumer le gaz fournissent jusqu'à ce
que les fuites de gaz ont été réparés.



Un technicien de Service qualifié
Centre de service ou fournisseur du gaz doit réaliser
l'installation et service.


14

NE pas installer le four sur du matériel qui limite le retour d'air,
comme les tapis ou tout matériau souple comme le vinyle.
NE pas installer le four où le dédouanement aux matériaux
combustibles ne peut être maintenue.
NE modifiez pas le four en quelque sorte.
NE modifient pas le four pour un système de mise à la masse
positive.
PAS Salut pot four à moins que le système d'allumage
électronique (circuit imprimé) a été déconnecté.
NE pas utiliser un chargeur de batterie pour alimenter une
chaudière de modèle DC même lors de l'essai.
NE pas utiliser le courant alternatif de 120 volts avec modèles CC.
NE pas utiliser le placard du four comme un compartiment de
rangement.
NE pas évacuer le fourneau avec système d'évacuation
desservant un autre appareil.
NE pas évacuer le four à un espace extérieur porche fermé.
NE pas utiliser pour le chauffage temporaire des bâtiments ou
constructions en cours de construction.
Protéger les matériaux de construction de la dégradation de
l'échappement de gaz de combustion.
Protéger les composants électriques de four de l'eau.
Compartiment doit être fermée lorsque vous utilisez l'appareil.
Si l'alimentation en gaz ne pas couper ou cas de surchauffe,
fermer le robinet de gaz dans le four avant de couper l'alimentation
électrique.
NE pas utiliser ce four si des pièces ont été sous l'eau.
Ne pas utiliser de nettoyants de pétrole ou de type citrique sur les
pièces en plastique comme un dommage peut se produire.

Petit VENT installer ATION ..................................................... 18
Porte STANDARD INSTALLATION ......................................... 18
Rincer la porte INSTALLATION .............................................. 19
SYSTÈMES DE CONDUITS DUR ............................................ 19
Décharge de plancher Découpe............................................. 19
RACCORDEMENT AU GAZ..................................................... 19
BRANCHEMENTS ÉLECTRIQUES ......................................... 20
INSTALLATION DE THERMOSTAT ........................................ 21
MODE D'EMPLOI ..................................................................... 21
CODES DE DIAGNOSTIC DE CONTRÔLE D'ALLUMAGE .... 21

AVERTISSEMENT
DES BLESSURES
Toutes les tôles sont coupantes il faut veiller lors de
manipulations et/ou brossage contre eux.

AVERTISSEMENT
INTOXICATION AU MONOXYDE DE CARBONE
Bien sceller de ventilation pour empêcher l'entrée des entraîneur de
monoxyde de carbone.
 NE pas prendre l'air de combustion de surface habitable.
 N'évacuez pas l'air dans le salon ou un porche fermé.

CARACTÉRISTIQUES DU MODÈLE

AVERTISSEMENT
INTOXICATION AU MONOXYDE DE CARBONE

Modèles

AFMD16

AFMD20

AFMD25

AFMD30

AFMD35

Fourneau doit être installé et ventilé conformément à ces
instructions.
 Une mauvaise installation, adaptation, altération, service ou
entretien peut causer des blessures ou des dommages matériels.
Emplacement d'une installation incorrecte peut provoquer de fourneau
pour produire une pression négative, affectant l'air de combustion ou
de ventilation d'autres appareils.

Type de gaz

LP
Propane

LP
Propane

LP
Propane

LP
Propane

LP
Propane

Puissance
thermique
Sortie BTU

4.6kw

5.8kw

7.3kw

8.7kw

10.2kw

3.5kw

4.5kw

5.6kw

6.7kw

7.6kw

Pression
statique de
conduit
Watts

. WC 20"

. 10" WC

. 10" WC

. 10" WC

. 10" WC

50

50

90

90

132

Alimentation
(VCC)
Reprise
d'Air

12

12

12

12

12

80 en2

80 en2

80 en2

80 en2

80 en2

Reprise
65 à2
65 à2
65 à2
d'Air
minimale
* (WC = eau colonne)
* 15 AMP CIRCUIT DÉDIE POUR LE FOUR

65 à2

65 à2

AVERTISSEMENT
INTOXICATION AU MONOXYDE DE CARBONE

12345

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TSB/Document ID: 32471 IOM M EF 8

Replacement Service Bulletin Number:

MFR Communication Date: 2017-12-05

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: EQUIPMENT

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