Benchmark 1500 - 2000 Boilers
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OMM-0097_0E AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 9 of 182
GF-142 Ph.: 800-526-0288 10/01/2015
Phrase, Abbreviation
Meaning
GF-xxxx Gas Fired (an AERCO document numbering system)
GND Ground
HDR Header
Hex Hexadecimal Number (0 – 9, A – F)
HP Horse Power
HX Heat Exchanger
Hz Hertz (Cycles Per Second)
I.D. Inside Diameter
IGN Ignition
IGST Board Ignition/Stepper Board, contained in C-More Control Box
I/O Box
Input/Output (I/O) Box currently used on Benchmark, Innovation and
KC1000 Series products
IP Internet Protocol
ISO International Organization for Standardization
Lbs. Pounds (1 lb = 0.45 kg)
LED Light Emitting Diode
LN Low Nitrogen Oxide
MA (mA) Milliampere (1 thousand
of an ampere)
MIN (Min) Minimum
Modbus®
A serial, half-
duplex data transmission protocol developed by AEG
Modicon
NC (N.C.) Normally Closed
NO (N.O.) Normally Open
NOx Nitrogen Oxide
NPT National Pipe Thread
O
Oxygen
O.D. Outside Diameter
Operation and Maintenance Manual
OnAER
AERCO’s on-line remote monitoring system
PMC Board Primary Micro-Controller (PMC) board, contained in the C-More
P/N Part Number
PPM Parts per Million