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checklist to calculate efficiency of boiler
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Pilot Type: Continuous Intermittent Interrupted Direct Ignition Hot Surface Boiler Control/Device Set Points Acceptable Location of Control/Device Test Date, Result Low-Water Fuel Cutout (Steam 2, HWH 1) (3/4” Drain) _______________________________________________________________________ Forced Circulation Flow Switch __________________________________________________________________________ Steam Pressure Control __________________________________________________________________________ High Pressure Limit __________________________________________________________________________ Water temperature Control __________________________________________________________________________ High Temperature Limit ___________________________________________________________________________
Gas Fuel Train Safety Controls: Control/Device Set Points Acceptable Location of Control/Device Test Result Drip leg __________________________________________________________________________ Manual shut off valve __________________________________________________________________________ Fuel Safety Shutoff Valve, Main ___________________________________________________________________________ (proof of closure) Pilot Safety Shutoff Valve ___________________________________________________________________________ Combustion Air Switch ___________________________________________________________________________ High Gas Pressure ___________________________________________________________________________ Low Gas Pressure ___________________________________________________________________________ Flame Safeguard (Primary) ___________________________________________________________________________ (Fire Eye) Purge Air Flow (Sail Switch) ___________________________________________________________________________ Gas Regulator ___________________________________________________________________________ Vent Valve and Lines ___________________________________________________________________________ Bleed Lines ___________________________________________________________________________ Relief Lines ___________________________________________________________________________ Oil, Fuel Train Safety Controls Atomizing Medium Switch ___________________________________________________________________________ Filters / Strainers ___________________________________________________________________________ Low Oil Pressure ___________________________________________________________________________ High Oil Temperature ___________________________________________________________________________ Safety Shutoff Valves ___________________________________________________________________________ Loss of Combustion air switch ___________________________________________________________________________ Emergency Shutdown Switch __________________________________________________________________________ Low-Fire Start Switch _____________________________________________________________________________ (required for 2,500,000 btu, 20 gph and greater)