A-106 Appendix
FlexFit – Linkageless Control – Revision 1.0
PREFERRED
UTILITIES MFG CORPORATION
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Abbreviations Used in This Manual
Abbreviation Description
2OIL #2 Oil
6OIL #6 Oil
ALFCO Assured Low Fire Cutoff
BGAS Bio-gas
BMS Burner Management System (also called Flame Safeguard)
BTU British Thermal Unit
CCS or CC Combustion Control System or Combustion Control
CFH Call for Heat
DGAS Digester Gas
DI Digital Input
DHW Domestic Hot Water
DSI Direct Spark Ignition
EEPROM Electrically Erasable Programmable Read Only Memory
FB Feedback
FD Forced Draft
FF FlexFit
FGR Flue Gas Recirculation or Flue Gas Return
FLA Full Load Amps
FR Firing Rate
FSG Flame Safeguard (also called Burner Management System)
HGP High Gas Pressure
HOP High Oil Pressure
Hz Hertz
Ign Ignition
In. W. C. or "WC Inches of Water Column
IR Infrared
ISA Instrument Society of America
LFH Low Fire Hold
LGP Low Gas Pressure
LOP Low Oil Pressure
LRA Locked Rotor Amps (inrush current)
LWCO or LWC Low Water Cutout
LWF Liquid Wood Fuel (also called RFO – or Renewable Fuel Oil)
mA Milliamp
MAF Minimum Air Flow
MTFI Main Trial for Ignition
NEC National Electrical Code
NEMA National Electrical Manufacturers Association
NFPA National Fire Protection Association
NGAS Natural Gas
NPT National Pipe Thread
O
2
or O2 Oxygen
OAT Outdoor Air Temperature
P&ID Piping and Instrumentation Diagram
PAF Purge Air Flow
PB Proportional Band
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