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NORA Oilheat Technicians Manual

Flame ............................................................................ 7-3 detection .............................................................. 11-4, 11-7 impingement ........................................................ 7-20 Flame Retention Burner ................................................. 16-12, 16-13 Flash Point ..................................................................... 2-4 Flow Control Valve .......................................................... 13-13 Flue Heat Loss ............................................................... 16-6 Flue Pipe ....................................................................... 6-10, 6-12, 13-3, 14-7 Fuel De-Aerators ............................................................ 4-8 Fuel Degradation ............................................................ 2-7 Fuel Units and Oil Valves ............................................... 4-3, 4-10 components ......................................................... 4-3 function ................................................................ 4-4 noise .................................................................... 4-17 pressure test ........................................................ 4-12, 4-25 replacement ......................................................... 4-16 servicing/testing ................................................... 4-10, 4-13, 4-24 single-stage .......................................................... 4-4 strainer/gasket ..................................................... 4-3 troubleshooting chart ............................................ 4-22 two-stage fuel unit ................................................ 4-6 vacuum test ......................................................... 4-10, 4-12 Furnaces ........................................................................... 12-22 counterflow .......................................................... 13-4 distribution system ............................................... 13-5, 13-6 highboy ................................................................ 13-4 horizontal ............................................................. 13-5 lowboy ................................................................. 13-4 replacement ......................................................... 13-6, 16-14 stack connections ................................................ 6-12 troubleshooting ..................................................... 13-5 13-6 warm air ............................................................... 13-3 Fuses ............................................................................ 8-24 Gauge Glass .................................................................. 13-17 Heat Anticipating Principle ............................................. 12-6 Heat Exchanger ............................................................. 7-27, 13-3, 13-9 Heat Loss ...................................................................... 16-4 air leaks ............................................................... 16-7 excessive firing rates ........................................... 16-8 in older units ........................................................ 16-7 off-cycle ............................................................... 16-4, 16-6 on-cycle ............................................................... 16-4, 16-5 pipe and duct ....................................................... 16-9, 16-14 sensible heat loss ................................................ 16-6 service ................................................................. 16-4 stand-by loss ....................................................... 16-8 Heating Oil ..................................................................... 2-3 atomizing ............................................................. 1-3 cold oil ................................................................. 2-8 fuel quality tests ................................................... 2-9 properties of ......................................................... 2-4 - 2-5 refining ................................................................. 2-3 service calls, fuel related ...................................... 2-6 stability ................................................................ 2-7 Heating System ............................................................. 13-3 - 13-14 air leaks ............................................................... 16-7 hot water .............................................................. 13-7 radiant .................................................................. 13-12 tune-up ................................................................ 16-15 High Limit Control ........................................................... 12-9 Hot Water, Domestic ...................................................... 13-17 back flow preventer .............................................. 13-21 components ......................................................... 13-20 direct-fired ............................................................ 13-18 external tankless coils .......................................... 13-19 indirect fired ......................................................... 13-18 indirect storage .................................................... 13-20, 13-21 piping ................................................................... 13-10 radiation ............................................................... 13-11 radiators ............................................................... 13-11 tankless coil ......................................................... 13-19 Hot Water Limit Controls ................................................ 12-17 Hydro Air Fan Controls ................................................... 12-20, 12-21 Ignition ........................................................................... 9-3, 13-3, 13-9 cables .................................................................. 9-11 delayed ignition .................................................... 9-17 intermittent ........................................................... 9-4, 9-6, 9-15 interrupted ............................................................ 9-4, 9-7, 9-15 modes .................................................................. 11-5 service problems/troubleshooting .......................... 9-13, 9-16 solid state ............................................................ 9-3, 9-9 testing .................................................................. 9-10, 9-12 transformer .......................................................... 9-3, 9-4, 9-6 wiring ................................................................... 9-6 Ignition Point .................................................................. 2-5 Ignitors ........................................................................... 9-9, 9-10 Index XV—Oilheat Technicians Manual


NORA Oilheat Technicians Manual
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