Thermon HELLFIRE 400, Installation, Operation & Maintenance Instructions Manual

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J. Service 45
J.1 Recommended Service Schedule ........................... 45
J.2 Gas Supply Pressure ......................................................... 46
J.3 Gas Supply Leak Test ....................................................... 46
J.4 Manifold Leak Test ............................................................ 46
J.5 Combination Gas Valve Seat Leak Test ............... 46
J.6 Dirt Trap And Strainer ..................................................... 46
J.7 Motor ............................................................................................47
J.8 Vibration Specifications and Measurement ....47
J.9 Lubrication ...............................................................................47
J.10 Direct Spark Ignition Control Module (DSI) .......47
J.11 Flame Signal .......................................................................... 48
J.12 Air Switch ................................................................................... 48
J.13 Air Switch Calibration ........................................................ 48
J.14 High Temperature Limit ................................................. 48
J.15 AAR Terminals, Signals, and Communications 49
J.16 Burner ...........................................................................................49
J.17 Defroster .....................................................................................49
K. Parts 50
K.1 Parts - Heater Body ...........................................................50
K.2 Parts-Control Panel, 240V Single Phase .............51
K.3 Parts - Control Panel, 208V Three Phase ...........51
K.4 Parts - Control Panel, 460-575V Three Phase 52
K.5 Parts - Control Panel, 460-575V Three Phase
with 120V Duplex Receptacle ....................................52
K.6 Parts - Gas Components ...............................................53