Glossary Of Terms And Symbols - Bradford White IGI-180R-10 Service Manual

GLOSSARY OF TERMS AND SYMBOLS

This glossary of terms and symbols is provided to assist you in understanding some of the
language used throughout this manual.
dB(A) -
DC -
AC -
WFCD -
FB -
Hz -
IC -
BTU/H -
PSI -
LED -
GPM -
mA -
W.C. -
mm -
NOx -
OHS -
PCB -
CPU -
POT -
rpm -
SV -
Ø -
∆°F -
POV -
TE -
TH -
T -
IN
T -
out
sound pressure level in decibels, "A" range
direct current
alternating current
water flow control device
feedback information
hertz
integrated circuit
British thermal units per hour
Pounds per square inch
light emitting diode
gallons per minute
milliamps
inches of water column
millimeters
oxides of nitrogen NO & NO
overheat switch
printed circuit board
central processing unit
potentiometer
revolutions per minute
solenoid valve
diameter
delta T or temperature rise above ambient
modulating valve
thermal efficiency
thermistor
temperature of incoming water
temperature of outgoing water
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