Instruction manual
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OPERATING INSTRUCTIONS 
FOR YOUR SAFETY READ BEFORE OPERATING
POUR VOTRE SÉCURITÉ LISEZ AVANT DE METTRE EN 
MARCHE
A.  is appliance is equipped with an ignition device which 
automatically lights the pilot. Do not try to light the pilot by 
hand. 
  Cet appareil est muni d’un dispositif d’allumage qui allume 
automatiquement la veilleuse. Ne tentez pas d’allumer la veilleuse 
manuellement.
B.  BEFORE OPE  TING smell all around the appliance area 
for gas. Be sure to smell next to the  oor because some gas is 
heavier than air and will se le on the  oor.
  Propane gas may not always be detected by smell. 
Propane gas is heavier than air and can collect in low 
areas.
  Propane gas can ignite or explode if an ignition source is 
present and result in death, serious injury and property 
damage!
FOR YOUR SAFETY
•  Have only quali ed licensed professionals install, service and 
maintain this appliance and your gas system in accordance with 
all applicable codes.
•  Install a nationally listed combustible gas detector(s) in your 
home.
•  If you suspect a leak:
1.  Have everyone leave the building immediately.
2.  Do not a empt to light any appliance.
3.  Do not touch any electrical or electronic switches in the 
building.
4.  Do not use any phone in the building.
5.  Call your gas supplier from a phone outside of the building.
6.  If you cannot reach your gas supplier call the  re department.
AVANT DE FAIRE FONCTIONNER, reni ez tout autour de 
l’appareil pour déceler une odeur de gaz. Reni ez près du plancher, 
car certains gaz sont plus lourds que l’air et peuvent s’accumuler 
au niveau du sol.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ: 
•  Ne pas tenter d’allumer d’appareil. 
•   Ne touchez à aucun interrupteur; ne pas vous servirdes 
téléphones se trouvant dans le bâtiment. 
•   Appelez immédiatement votre fournisseur de gaz depuis un 
voisin. Suives les instructions du fournisseur. 
•  Si vous ne pouvez rejoindre le fournisseur, appelez le service 
de incendies.
C.   Do not use this appliance if any part has been under water. 
Immediately call a quali ed service technician to inspect the 
appliance and to replace any part of the control system and any 
gas control that has been under water.
  N’utilisez pas cet appareil s’il a été plongé dans l’eau, même 
partiellement. Faites inspecter l’appareil par un tecnicien quali é 
et remplacez toute partie du système de contrôle et toute 
commande qui ont été plongés dans l’eau.
  To prevent being burned, stand clear of the boiler 
during ignition and do not touch any hot metal parts.
Operating Instructions 
1. STOP! Read the safety information above. If, at any time, the 
appliance will not operate properly, follow the instructions “TO 
TURN OFF GAS TO APPLIANCE”. 
2. Set the operating control or thermostat to o or its lowest se ing. 
3. Turn o all electric power to the appliance. 
4. 
Close the main manual gas shut-o valve, Figure 16.
5. Wait  ve (5) minutes to clear out any gas.   en smell for gas, 
including near the  oor. If you smell gas, STOP! Follow “B” 
in the safety information above (to the le ) on this label. If you 
do not smell gas, go to the next step. 
6. Remove the upper front jacket panel. 
7. Turn the knob on the pilot valve to o , Figure 18. 
8.   Turn the knob on the main gas valve to o , 225 through 400 
models, Figure 18. On 600 through 2300 models close the 
manual shuto valve located in the control compartment, Figure 
19. 
9.  Remove the plug(s) from the pilot and manifold pressure 
  ing(s), Figure 19.
10. Connect a manometer having a minimum capacity of 20 in, 
508 mm WC to the pilot and manifold pressure   ings, Figure 
19. Make sure the gas supply piping has been purged of air and 
all gas joints up to the gas valve have been thoroughly checked 
for leaks. 
11. Remove plug(s) from the di erential air pressure taps, Figure 17.
12. Connect both sides of a manometer to the pressure switch tee, 
Figure 17, going to one of the pressure switches.
Figure 18  Pilot valve (all models) 
main valve (225 - 400 models)










