CleaverBrooks FLX Operation, Service And Parts Manual page 70

Chapter 4
MNEMONIC
FDJB Flame Detector Junction Box
FDPS Flow Differential Pressure Switch
FFA Flame Failure Alarm
FFL Flame Failure Light
FFR Flame Failure Relay
FGR Flue Gas Recirculation
FGRCDTD Flue Gas Recirculation Cool Down Time Delay
FGRCPS Flue Gas Recirculation Cam Position Switch
FGRFM Flue Gas Recirculation Fan Motor
FGRFMS Flue Gas Recirculation Fan Motor Starter
FGRFMSI Flue Gas Recirculation Fan Motor Starter Interlock
FGRMVLS Flue Gas Recirculation Manual Valve Limit Switch
FGRTD Flue Gas Recirculation Time Delay
FORS First Out Reset Switch
FPM Feed Pump Motor
FPMS Feed Pump Motor Starter
FPR Feed Pump Relay
FPS Feed Pump Switch
FRI Firing Rate Interface
FRP Firing Rate Potentiometer (O2 Trim)
FS Flow Switch
FSS Fuel Selector Switch
FSSM Flame Signal Strength Meter
FVEL Fuel Valve Energized Light
FVL Fuel Valve Light
FVR Fuel Valve Relay
FWC Feed Water Control
FWVT Feed Water Valve Transformer
G Green (Color Of Pilot Light)
GGL Gauge Glass Light
GOL Gas Operation Light
GOR Gas-Oil Relay
GOS Gas-Oil Switch
GOR Gas-Oil Relay
GPS Gas Pressure Sensor
GPV Gas Pilot Valve
GPVV Gas Pilot Vent Valve
GR Gas Relay
GSSV Gas Sensor Solenoid Valve
GVEL Gas Valve Energized Light
GVTS Gas Valve Test Switch
HATC High Ambient Temperature Control
HBWTC High Boiler Water Temperature Control
HBWTL High Boiler Water Temperature Light
HFAV High Fire Air Valve
HFGV High Fire Gas Valve
HFL High Fire Light
HFOV High Fire Oil Valve
HFPS High Furnace Pressure Switch
HFS High Fire Switch
HFS-A High Fire Switch - Air
HGPL High Gas Pressure Light
HGPR High Gas Pressure Relay
HGPS High Gas Pressure Switch
HHFL Header High Fire Light
4-6
DESCRIPTION
G
H
Figure 4-1: Electrical Nomenclature (Continued)
MNEMONIC
H/LWA High Low Water Alarm
HLC High Limit Control
HLFC High-Low Fire Control
HLPC High Limit Pressure Control
HLTC High Limit Temperature Control
HMC Header Modulating Control
HOPL High Oil Pressure Light
HOPR High Oil Pressure Relay
HOPS High Oil Pressure Switch
HOLC Header Operating Limit Control
HOTL High Oil Temperature Light
HOTR High Oil Temperature Relay
HOTS High Oil Temperature Switch
HPCO High Pressure Cutoff
HSPC High Steam Pressure Control
HSPL High Steam Pressure Light
HSPR High Steam Pressure Relay
HSTC High Stack Temperature Control
HSTL High Stack Temperature Light
HSTS High Stack Temperature Switch
HWAR High Water Alarm Relay
HWC High Water Control
HWCO High Water Cutoff
HWL High Water Light
(I.C.) Instantaneously Closed
(I.O.) Instantaneously Open
IL Ignition Light
INT Interval (Timer)
IR Ignition Relay
IT Ignition Transformer
JPP Jackshaft Position Potentiometer
LAMPS Low Atomizing Media Pressure Switch
LASPS Low Atomizing Steam Pressure Switch
LDL Load Demand Light
LDPS Low Differential Pressure Switch
LDS Low Draft Switch
LFAV Low Fire Air Valve
LFGV Low Fire Gas Valve
LFHTD Low Fire Hold Time Delay
LFL Low Fire Light
LFOV Low Fire Oil Valve
LFPS Low Fire Pressure Switch
LFR Low Fire Relay
LFS Low Fire Switch
LFS-A Low Fire Switch - Air
LFS-F Low Fire Switch - Fuel
LFS-G Low Fire Switch - Gas
LFS-O Low Fire Switch - Oil
LFTC Low Fire Temperature Control
LGPL Low Gas Pressure Light
LGPR Low Gas Pressure Relay
LGPS Low Gas Pressure Switch
LIAPS Low Instrument Air Pressure Switch
LLPC Low Limit Pressure Control
Sequence Of Operation
DESCRIPTION
I
J
L
750-177