Installation & Service Manual
7Maintenance
WARNING
WARNING
WARNING
Follow the service and maintenance procedures given throughout this manual and in component literature shipped with the appliance. Failure to perform the service and maintenance could result in damage to the appliance or system. Failure to follow the directions in this manual and component literature could result in severe personal injury, death, or substantial property damage.
The appliance should be inspected annually only by a qualified service technician. In addition, the maintenance and care of the appliance designated in Table 7A and explained on the following pages must be performed to assure maximum appliance efficiency and reliability. Failure to service and maintain the appliance and system could result in equipment failure.
Electrical shock hazard – Turn off power to the appliance before any service operation on the appliance except as noted otherwise in this instruction manual. Failure to turn off electrical power could result in electrical shock, causing severe personal injury or death.
CAUTION
Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation.
Address reported problems | Flue vent system and air supply |
1.Inspect any problems reported by the owner and correct before proceeding.
Inspect appliance area
1.Verify that appliance area is free of any combustible materials, gasoline and other flammable vapors and liquids.
Inspect appliance interior
1.Remove the outer access panels and inspect the interior of the appliance.
2.Vacuum any sediment from inside the appliance and components. Remove any obstructions.
1.Examine the venting system at least once a year. Check more often in the first year to determine inspection interval. Check all joints and pipe connections for tightness, corrosion or deterioration. Clean louvers and/or screens in the combustion air intake system as required. Have the entire system, including the venting system, periodically inspected by a qualified service agency.
2.Check for gastight seal at every connection, seam of air piping, and vent piping periodically inspected by a qualified service agency.
WARNING Venting system must be sealed gastight to prevent flue gas spillage and carbon
monoxide emissions, which will result in severe personal injury or death.
Check all piping for leaks
Listed below are items that must be checked to ensure safe reliable operation. Verify proper operation after servicing.
WARNING Eliminate all system or appliance leaks. Continual fresh makeup water will reduce
appliance life. Minerals can build up in sections, reducing heat transfer, overheating heat exchanger, and causing heat exchanger failure. Leaking water may also cause severe property damage.
1.Inspect all water and gas piping and verify to be leak free.
2.Look for signs of leaking lines and correct any problems found.
3.Check gas line using the procedure found in Section 3 - Gas Connections.
Check water system
1.Verify all system components are correctly installed and operational.
2.Check the cold fill pressure for the system. Verify it is correct (must be a minimum of 12 PSI).
3.Watch the system pressure as the boiler heats up (during testing) to ensure pressure does not rise too high. Excessive pressure rise indicates expansion tank sizing or performance problem.
4.Inspect automatic air vents and air separators. Remove air vent caps and briefly press push valve to flush vent. Replace caps. Make sure vents do not leak. Replace any leaking vents.
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