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Do not start the burner unless all cleanout doors are secured in place. I unit is full of vapor, or when the combustion chamber is very hot. Do not attempt to start the burner when excess oil has accumulated, when the I I 24 MAINTENANCE ANUALLY: To assure trouble-free operation, it is recommended that the flue passages, combustion chamber area (target wall, fire door insulation, durablanket), burner adjustment, operation of the controls, and boiler seals (fire door gasket or silicone seal, cast iron sectional seals, flue collector) be checked once each year by a competent Service Technician. Before the start of each heating season (or whenever the system has been shut down for extended periods of time) recheck the whole system for water, oil, and vent piping leaks. Replace or patch any leaks or seals that are faulty. VENT PIPE: Visually inspect the entire venting system once a month for any signs of leakage, deterioration, or soot build up. If the vent pipe shows any signs of leaking or deterioration, replace it immediately. If it shows any signs of soot build up, clean the vent pipe and have the burner settings and combustion checked by a competent professional. RELIEF VALVE: This valve should open automatically when the system pressure exceeds the pressure rating (usually 30 psi) of the relief valve. Should the valve ever fail to open under this condition, shut down the system. Drain the system until system pressure is reduced below the relief valve pressure rating. Then contact a competent Service Technician to replace the valve and inspect the heating system and determine the cause, as this problem may indicate an equipment malfunction. The relief valve should be tested monthly during the heating season. Prior to testing, make certain a discharge pipe is properly connected to the valve outlet and arranged so as to contain and safely dispose of boiler discharge. Hold the trip lever fully open for at least five seconds in order to flush free any sediment that may lodge on the valve seat. Then permit the valve to snap shut. Refer to the valve manufacturer's instructions packaged with the valve for more details. CONVENTIONAL EXPANSION TANK: As noted in the EQUIPMENT AND OPTIONAL ACCESSORIES section, this tank may become water logged or may receive an excess of air. Frequent automatic opening of the relief valve indicates water logging. A high boiler temperature accompanied by unusually low radiation unit temperature (and "knocking" noises) indicates excess air in the tank. To correct either condition, close the valve between the boiler and the tank. Drain the tank until empty. Check all the tank plugs and fittings, tighten as necessary. Open the valve between the boiler and tank. Water will rise to the normal height in the tank if the system has an automatic _l valve, otherwise manually refill the system. DIAPHRAGM EXPANSION TANK: As noted in the EQUIPMENT AND OPTIONAL ACCESSORIES section, this tank may become water logged. Frequent automatic opening of the relief valve indicates water logging. A high boiler temperature accompanied by unusually low radiation unit temperature (and "knocking" noises) indicates excess air in the tank. To correct this condition, replace the diaphragm expansion tank. WATER SYSTEM: If the system is to remain out of service during freezing weather, always drain it completely (water left in to freeze will crack the pipes and/or boiler). TANKLESS COIL (OR COVER PLATE) GASKET: This gasket should be checked at least twice a year for leakage and replaced if necessary. If the gasket is replaced, make sure that when the coil plate (or cover plate) is reattached that the ten nuts are torqued in an alternating pattern to ensure equal force is applied to the entire gasket creating a good seal. The nuts should be torqued such that the gasket does not squeeze out from behind the plate. OIL BURNER: Oil burner maintenance is listed in this manual under OPERATING THE BOILER. I Never burn garbage or paper in the unit, and I never leave combustible material around it. I 25 OIL BOILER / BURNER CLEANING INSTRUCTIONS OIL BOILER CLEANING: I. Shut off all electrical power to the boiler / burner 2. Remove the vent pipe from the top of the boiler. deterioration. Clean out the base of the chimney. deterioration, replace it immediately. If chimney c0mpet_nt professional. and shut off fuel oil supply. Inspect the pipe and chimney for signs of corrosion and If the vent pipe shows any signs of corrosion or damage or deterioration is discovered, contact a 3. Remove the top jacket panel screws (5), the brass wing nuts (2) holding the flue collector top, and then the flue collector top. Inspect the gasket on the underside of the flue collector and replace as necessary. 4. Befbre beginning to clean the flue passageways, ensure that the combustion chamber blanket is covered. If the blanket is not covered prior to cleaning, replace the blanket once cleaning is completed. 5. Now with access to the flue passageways, ...

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