Checkpoint summary in VS .NET

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Checkpoint summary
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General considerations How old is the heating system Is the boiler or furnace an obsolete unit (i.e., a converted coal-fired boiler or an octopus warm-air furnace) Check each room for heat-supply registers or radiators. Are supply registers or radiators located on or near exterior walls (preferably under the windows or next to exterior door openings) Check supply-register dampers for ease of operation. Are there separate return grilles for each room or centrally located returns for each floor Check radiators for broken shutoff valves and blocked air vents (steam systems). Inspect area below radiators for signs of leakage. Check visible portions of ductwork and piping (basement, attic, garage, etc.) for open or leaking joints and uninsulated sections. Checkpoint summary 215
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Are the thermostats properly located (no drafts) Note whether the thermostats are manual or automatic clock units. Is the clock functional Check each heating zone and thermostat control independently. Is there an adequate air supply for the heating system If the heating unit has a direct vent, is it properly located Boiler or furnace Check boiler or furnace during startup. Note any puffback with an oil burner or a licking back of flames on a gas burner. Is the boiler a steel or cast-iron unit Is it aging Is it neglected Check for signs of excessive corrosion (rust), dust, flaking metal, and mineral deposits indicating past or current leakage. Inspect firebox, if accessible, for water seepage through joints and dripping water. Have this condition checked by a professional. Check smoke pipe for corrosion holes, open joints, sagging sections, and adequate clearance. If furnace or boiler is the condensing type, check for corrosion, signs of condensate leakage, blockage in the supply and vent pipes, and horizontal vent pipe sections sloping back to the furnace or boiler. Check master shutoff switches for proper operation. Warm-air systems Check furnace, burner area, and sheetmetal casing for excessive corrosion, rust, and flaking metal. Check for unstable or dancing flames (gas-fired furnace). If these conditions are noted, have the heat exchanger checked by a professional.
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If there is a canvas connection between furnace and main supply duct, check it for torn and open sections. This material may contain asbestos. Check fan controller during furnace operation. If fan starts after the burners shut off, controller is either faulty or out of adjustment. Check fan operation for excessive noise or vibrations. If system contains a power humidifier, check for operation, signs of leakage, and excessive mineral deposits. During furnace operation, check airflow and temperature in room supply registers. Check return grilles for proper air circulation (tissue test). Hot-water systems Check whether system is forced or gravity circulation. During operation, check pressure gauge. System pressure should generally be between 12 and 22 psi. Inspect for relief valve, which should be boiler-mounted. Do not check valve operation. Check circulating pumps for proper operation (motor and pump both functioning). Note any unusual loud sounds. Inspect pumps for leaking fittings or gaskets. Check each zone valve independently. Inspect valves for dripping water and deposits. If boiler also generates domestic hot water, check temperature gauge to determine whether aquastat is faulty or improperly set. Steam systems Check water-level gauge for proper level, accumulated sediment, and fluctuations (rising and dropping).
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216 Heating systems II
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Is the water supply to the boiler a manual or an automatic feed Check boiler for required safety controls: a low-water cutoff, a high-pressure limit switch, and an automatic relief valve. If low-water cutoff is an external type, check operation by flushing the unit. Inspect boiler relief valve. Do not operate. If valve is old, consider replacement. Inspect the condensate return line. Is it a wet or dry return If a wet return, is there a Hartford loop Oil burners During exterior inspection, check top portion of the chimney for accumulated soot. Has oil burner been maintained or neglected Look for a dated maintenance service card. During operation, note any smoke odors or soot particles in the furnace room. Are any abnormal noises or pulsations emitted from the oil burner during operation
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Check for cracks and open joints near the burner, particularly around the air tube, mounting plate, and front boiler doors. Check for air leakage at the joint between the smoke pipe and the chimney. Check exhaust stack for an operational draft control. Check refractory lining of the fire chamber for cracked and deteriorating sections. Check oil-burner feed lines (copper tubing). Are there kinked or exposed sections vulnerable to damage Check underside of oil storage tank (interior type) for leakage. Gas burners Check gas burners for corrosion dust and clogged gas ports. Check flame pattern for safe and efficient operation. Check draft diverter on the exhaust stack for backflow of exhaust gases. Is the gas meter adequately sized
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