Glossary of Abbreviations
Abbreviations are used throughout this manual. Normally in the text they will appear in complete form with the abbreviation following in parenthesis the first time they are used. After that they will appear in the abbreviated form. The commonly used abbreviations are shown below.
Abbreviation | Description | Abbreviation | Description |
AC | alternating current | FM | frequency modulation |
AHWT | anticipatory high water temp. | fs | full scale |
ALOP | anticipatory low oil pressure | ft. | foot, feet |
AM | amplitude modulation | ft. lbs. | foot pound, foot pounds |
Amp | ampere | ga. | gauge |
Amps | amperes | gal., gals. | gallon, gallons |
ANSI | American National Standard Institute | gal./hr. | gallons per hour |
API | American Petroleum Institute | gph | gallons per hour |
approx. | approximate, approximately | gpm | gallons per minute |
A/R | as required, as requested | gr. | grade |
A/S | as supplied, as stated, as suggested | grd. | ground |
ASA | American Standards Association | HCHT | high cylinder head temperature |
assy. | assembly | HET | high exhaust temperature |
ASTM | American Society for Testing Materials | Hg | mercury (element) |
ATDC | after top dead center | H2O | water |
ATS | automatic transfer switch | hp | horsepower |
aux. | auxiliary | hr, hrs | hour |
AWG | American Wire Gauge | HWT | high water temperature |
AWM | appliance wiring material | Hz | hertz (cycles per second) |
bhp | brake horsepower | ID | inside diameter |
bmep | brake mean effective power | in. | inch(es) |
Btu | British thermal unit | inc. | incorporated |
°C | Celsius degree | in. lbs. | inch pounds |
cc | cubic centimeter | int. | internal |
CCA | cold cranking Amps. | ||
CEC | Canadian Electrical Code | ISO | International Standards Organization |
cfh | cubic feet per hour | J | joule, joules |
cfm | cubic feet per minute | JIS | Japanese Industry Standard |
CID | cubic inch displacement | kg | kilogram, kilograms |
cm | centimeter, centimeters | kg/cm2 | kilograms per square centimeter |
cmm | cubic meters per minute | kgm | kilogram meter(s) |
co. | company | km | kilometer, kilometers |
cont’d. | continued | kPa | kiloPascal, kiloPascals |
C.S.A. | Canadian Standards Association | kph | kilometers per hour |
cu. in. | cubic inch, cubic inches | kV | kilovolt |
cyl. | cylinder | kVA | kilovolt amperes |
dBA | decibels | kW | kilowatt, kilowatts |
DC | direct current | kWH | kilowatt hour |
DCR | direct current resistance | L | liter, liters |
deg. | degree | LxWxH | length x width x height |
dept. | department | LED, LEDs | light emitting diode |
dia. | diameter | lb., lbs. | pound, pounds |
e.g. | example given | L/hr. | liter per hour, liters per hour |
EMI | electromagnetic interference | L/min. | liter(s) per minutes |
etc. | etcetera, (and so forth) | LOP | low oil pressure |
ext. | external | LP | liquefied petroleum |
°F | Fahrenheit degree | LWT | low water temperature |
fl. oz. | fluid ounce, fluid ounces | m | meter, meters |
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