AERCO Innovation (G-13-1854 and above) - Manual (Page 11)

Innovation Water Heaters Installation, Operation & Maintenance Manual
FORWARD
OMM-0078_0J
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Page 11 of
196
GF-128
Phone: 800-526-0288
PRI: 11/22/2013
PHRASES, ABBREVIATIONS AND ACRONYMS - Continued
Terminating Resistor A resistor placed at each end of a daisy-chain or multi-drop network in
order to prevent reflections that may cause invalid data in the
communication
VAC Volts, Alternating Current
VDC Volts, Direct Current
VFD Vacuum Fluorescent Display, or Variable Frequency Drive
W Watt
W.C. Water Column
WHM Water Heater Management
µA Micro amp (1 million th of an ampere)