Оценок - 3, средний балл: 4
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Фрагмент инструкции
b. Turn off all electric power to the boiler. c. Call a qualified heating service organization or local gas company and have the cause of the shut-down investigated and corrected. d. Refer to Lighting/Operating Instructions to re-start boiler. B. TROUBLESHOOTING GUIDES Use Table 8.1 to assist in determining causes and providing corrective actions to boiler problems. Refer also to Figure 8.1 to troubleshoot the Intermittent Ignition System Control. These guides must be used only by qualified service technicians. These individuals must follow all applicable codes and regulations in repair of any boiler problems. DANGER When servicing or replacing items that communicate with the boiler water, be certain that: . ..There is no pressure on the boiler. . ..The boiler is not hot. . ..The power is off. When servicing the gas valve or pilot, be certain that: . ..The gas is off. . ..The electricity is off. WARNING Do not use this appliance if any part has been under water. Improper or dangerous operation may result. Immediately call a qualified service technician to inspect the boiler and to replace any part of the control system and any gas control which has been under water. CAUTION Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. CAUTION Should overheating occur or the gas supply fail to shut off, do not turn off or disconnect the electrical supply to the pump. This may aggravate the problem and increase the likelihood of boiler damage. Instead, shut off the gas supply at a location external to the appliance. TROUBLESHOOTING Table 8.1: Boiler Troubleshooting Guide PROBLEM POSSIBLE CAUSES CORRECTIVE ACTIONS Burners not functioning. Burners will not shut down. Flashback or burning at orifice spuds. Delayed ignition. Excessive condensation in vent. Boiler not heating properly. Fumes or gas odors 1. No power. 2. Limit (Aquastat) not working. 3. Flame rollout switch open. 4. Blocked vent switch open. 5. Gas off at boiler gas valve. 6. Gas off external to boiler. 7. Plugged orifice spuds. 8. Defective gas valve. 9. Improper wiring. 10. Vent damper malfunctioning. 1. Defective gas valve. 2. Short circuit. 1. Manifold gas pressure too low. 2. Improperly sized/drilled orifice spuds. 3. Leaking gas valve. 4. Burrs on orifice. 5. Low supply gas pressure. 6. Excessive downdraft or draft problems in boiler room. 1. Insufficient pilot flame. 2. Pilot burner/orifice clogged. 3. Overfiring. 4. Misaligned burners or pilot. 5. Draft problem in boiler room. 1. Underfiring. 2. Limit (Aquastat) set too low. 3. Vent pipe too long. 4. Inadequate chimney or venting system. 1. Underfiring. 2. Limit set too low. 3. Air in system. 4. Circulator malfunctioning. 5. Circulation system clogged. 6. Incorrect thermostat heat anticipator setting. 1. Leaks in gas piping or fittings. 2. Leaks in gas service line or meter. 3. Obstructed chimney. 4. Obstructed flueways or vent. 5. Undersized chimney or vent, high draft loss in vent. 6. Draft problem in boiler room. 7. Overfiring. 8. Vent damper malfunctioning. 1. Check line voltage wiring and fuses. 2. Check wiring and contacts, relay, temperature setting. Clean and adjust as necessary. 3. Replace switch. Locate cause and correct. 4. Reset blocked vent switch. Locate cause and correct. 5. Start boiler using Lighting/Operating Instructions. 6. Check any gas valves in the line. 7. Check, clean and re-install. 8. Use Figure 8.1 to troubleshoot intermittent ignition gas valve. Replace if necessary. 9. Check and correct in accordance with wiring diagrams in Section 6. 10. Refer to vent damper manufacturer’s instructions. Replace if necessary. 1. Use Figure 8.1 to troubleshoot intermittent ignition gas valve. Replace if necessary. 2. Check and correct wiring. 1. Adjust to proper pressure. 2. Install correct spuds. 3. Replace valve. 4. Remove burrs. 5. Contact gas supplier if natural gas. Adjust regulator if LP gas. 6. Check air supply, ventilation and venting system. 1. Increase pilot gas flow. 2. Clean pilot burner and orifice. 3. Reduce rate to input on rating label. 4. Realign burners or pilot. 5. Check air supply, ventilation and venting system. 1. Increase rate to input on rating label. 2. Reset aquastat to higher setting. 3. Reposition boiler to reduce length. 4. Check chimney and venting recommendations. 1. Increase rate to input on rating label. 2. Reset aquastat to higher setting. 3. Vent air from all points in system. 4. Check circulator, replace if necessary. 5. Shut down and cool boiler, drain and flush system. 6. Adjust heat anticipator. 1. Locate and repair or replace. 2. Shut down boiler and notify gas provider. 3. Check, repair and/or clean chimney. 4. Clean flueways or vent and remove obstructions. 5. Check National Fuel Gas Code and vent manufacturer’s recommendations. 6. Check air supply, ventilation and venting system. 7. Reduce rate to input on rating label. 8. Refer to vent ...
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