Page 22 | GB100W NATURAL OR PROPANE BOILER |
| INSTALLATION AND OPERATING INSTRUCTIONS |
BOILER OPERATION
WARNING: Before attempting to operate this boiler you !MUST! read and fully understand the lighting instructions in the “For Your Safety Read Before Operating” section of this manual. If you attempt to operate this boiler without a full understanding of it’s ignition system a fire or explosion may result causing extensive property damage, severe personal injury or death!
WARNING: Before proceeding read and fully understand the instructions contained in this manual. Do not attempt to operate this boiler if it has not been installed in accordance with the guidelines set forth in this manual.
Should overheating occur or the gas supply fail to shut off, do not turn off or disconnect the electrical supply to the pump. Instead, shut off the gas supply at a location external to the appliance.
En cas de surchauffe ou si l'alimentation de gaz ne peut être coupée, ne pas couper ni débrancher l'alimentation électrique de la ponpe. Fermer plutôt le robinet d'admission de gaz à l'extérieur de l'appareil..
Do not use this appliance if any part has been under water. Immediately call a qualified 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 qualifié et remplacez toute partie du système de contrôle et toute commande qui ont été plongés dans l'eau.
Continuous Pilot System
A. Connect a manometer having a minimum capacity of 10" WC to the outlet pressure port of the gas valve. Make sure that the gas supply piping has been purged of air and that all gas joints up to the gas valve have been thoroughly checked for leaks. Wait at least five minutes for the gas to dissipate before turning on the electrical power.
B. Read, understand and follow the lighting instructions contained in this manual that are applicable to the type of ignition system installed on the boiler.
CAUTION: To prevent being burned, take care not to touch any hot metal parts. Stand clear of the boiler during ignition to prevent being burned in the case of flashback.
C.Raise the thermostat at least 5 degrees above the room temperature. The burners should light.
D.A boiler designed for use with natural gas should have a manifold gas pressure of 3.5" WC. On an LP boiler, the manifold pressure should be 10" WC. To adjust the manifold gas pressure, remove the gas valve pressure regulator cap and turn the regulator screw to obtain the correct pressure.
E.Test the ignition safety shutoff device, turn the gas control knob on the gas valve to “PILOT”. The burners should go out. Extinguish the pilot and wait 3 minutes. Turn the gas valve control knob to “ON”. There should be NO gas flow to the main burners with the pilot out! If gas flow is detected, immediately turn the gas valve control knob to “OFF” and have the problem corrected.
Intermittent & Direct Ignition Systems
A.Connect a manometer having a minimum capacity of 10 in, 254 mm, WC to the outlet pressure port of the gas valve. Make sure that the gas supply piping has been purged of air and that all gas joints up to the gas valve have been thoroughly checked for leaks. Wait at least five minutes for the gas to dissipate before turning on the electrical power.
B.Read, understand and follow the lighting instructions contained in this manual that are applicable to the type of ignition system installed on the boiler.
C.Raise the thermostat at least 5 degrees above the room temperature. For models equipped with an intermittent pilot the pilot should light and then the burners. If a direct ignition system is employed, a delay of approximately 20 seconds will take place as the silicon carbide ignitor heats up. Once the ignitor is hot, the main gas valve will open and the burners should light. If the burners fail to light the system will make two more ignition attempts. If the burners light, but go out within 4 seconds, the system will make three more ignition attempts. If the burners have not lit after the last ignition try, the gas valve will close and the system will go into lock out. DO NOT attempt to reset the system until the ignition system has been inspected and the problem resolved. After 5 minutes has passed since the last ignition attempt, reset the system by turning the thermostat to it’s lowest setting and then back to where it was. Momentarily interrupting the electrical power to the boiler will also reset the system.
D.With the burners in operation, close the manual shutoff valve in the gas supply line. As soon as the burner flames go out, open the manual shutoff valve. A normal ignition sequence should take place.
