Appendix A Abbreviations
The following list contains abbreviations that may appear in this publication.
A, amp | ampere |
ABDC | after bottom dead center |
AC | alternating current |
A/D | analog to digital |
ADC | advanced digital control; |
| analog to digital converter |
adj. | adjust, adjustment |
ADV | advertising dimensional |
| drawing |
Ah | |
AHWT | anticipatory high water |
| temperature |
AISI | American Iron and Steel |
| Institute |
ALOP | anticipatory low oil pressure |
alt. | alternator |
Al | aluminum |
ANSI | American National Standards |
| Institute (formerly American |
| Standards Association, ASA) |
AO | anticipatory only |
APDC | Air Pollution Control District |
API | American Petroleum Institute |
approx. | approximate, approximately |
APU | Auxiliary Power Unit |
AQMD | Air Quality Management District |
AR | as required, as requested |
AS | as supplied, as stated, as |
| suggested |
ASE | American Society of Engineers |
ASME | American Society of |
| Mechanical Engineers |
assy. | assembly |
ASTM | American Society for Testing |
| Materials |
ATDC | after top dead center |
ATS | automatic transfer switch |
auto. | automatic |
aux. | auxiliary |
avg. | average |
AVR | automatic voltage regulator |
AWG | American Wire Gauge |
AWM | appliance wiring material |
bat. | battery |
BBDC | before bottom dead center |
BC | battery charger, battery |
| charging |
BCA | battery charging alternator |
BCI | Battery Council International |
BDC | before dead center |
BHP | brake horsepower |
blk. | black (paint color), block |
| (engine) |
blk. htr. | block heater |
BMEP | brake mean effective pressure |
bps | bits per second |
br. | brass |
BTDC | before top dead center |
Btu | British thermal unit |
Btu/min. | British thermal units per minute |
CCelsius, centigrade
cal. calorie
CAN | controller area network |
CARB | California Air Resources Board |
CAT5 | Category 5 (network cable) |
CB | circuit breaker |
CC | crank cycle |
cc | cubic centimeter |
CCA | cold cranking amps |
ccw. | counterclockwise |
CEC | Canadian Electrical Code |
cert. | certificate, certification, certified |
cfh | cubic feet per hour |
10/14 |
cfm | cubic feet per minute |
CG | center of gravity |
CID | cubic inch displacement |
CL | centerline |
cm | centimeter |
CMOS | complementary metal oxide |
| substrate (semiconductor) |
com | communications (port) |
coml | commercial |
Coml/Rec | Commercial/Recreational |
conn. | connection |
cont. | continued |
CPVC | chlorinated polyvinyl chloride |
crit. | critical |
CSA | Canadian Standards |
| Association |
CT | current transformer |
Cu | copper |
cUL | Canadian Underwriter’s |
| Laboratories |
CUL | Canadian Underwriter’s |
| Laboratories |
cu. in. | cubic inch |
cw. | clockwise |
CWC | city |
cyl. | cylinder |
D/A | digital to analog |
DAC | digital to analog converter |
dB | decibel |
dB(A) | decibel (A weighted) |
DC | direct current |
DCR | direct current resistance |
deg., | degree |
dept. | department |
dia. | diameter |
DI/EO | dual inlet/end outlet |
DIN | Deutsches Institut fur Normung |
| e. V. (also Deutsche Industrie |
| Normenausschuss) |
DIP | dual inline package |
DPDT | |
DPST | |
DS | disconnect switch |
DVR | digital voltage regulator |
E2PROM, EEPROM | |
| |
| programmable |
| memory |
E, emer. | emergency (power source) |
ECM | electronic control module, |
| engine control module |
EDI | electronic data interchange |
EFR | emergency frequency relay |
e.g. | for example (exempli gratia) |
EG | electronic governor |
EGSA | Electrical Generating Systems |
| Association |
EIA | Electronic Industries |
| Association |
EI/EO | end inlet/end outlet |
EMI | electromagnetic interference |
emiss. | emission |
eng. | engine |
EPA | Environmental Protection |
| Agency |
EPS | emergency power system |
ER | emergency relay |
ES | engineering special, |
| engineered special |
ESD | electrostatic discharge |
est. | estimated |
emergency stop | |
etc. | et cetera (and so forth) |
exh. | exhaust | |||
ext. | external | |||
F | Fahrenheit, female | |||
FHM | flat head machine (screw) | |||
fl. oz. | fluid ounce | |||
flex. | flexible | |||
freq. | frequency | |||
FS | full scale | |||
ft. | foot, feet | |||
ft. lb. | foot pounds (torque) | |||
ft./min. | feet per minute | |||
ftp | file transfer protocol | |||
g | gram | |||
ga. | gauge (meters, wire size) | |||
gal. | gallon | |||
gen. | generator | |||
genset | generator set | |||
GFI | ground fault interrupter | |||
GND, |
|
|
| ground |
| ||||
|
|
| ||
gov. | governor | |||
gph | gallons per hour | |||
gpm | gallons per minute | |||
gr. | grade, gross | |||
GRD | equipment ground | |||
gr. wt. | gross weight | |||
H x W x D height by width by depth | ||||
HC | hex cap | |||
HCHT | high cylinder head temperature | |||
HD | heavy duty | |||
HET | high exhaust temp., high | |||
|
|
|
| engine temp. |
hex | hexagon | |||
Hg | mercury (element) | |||
HH | hex head | |||
HHC | hex head cap | |||
HP | horsepower | |||
hr. | hour | |||
HS | heat shrink | |||
hsg. | housing | |||
HVAC | heating, ventilation, and air | |||
|
|
|
| conditioning |
HWT | high water temperature | |||
Hz | hertz (cycles per second) | |||
IBC | International Building Code | |||
IC | integrated circuit | |||
ID | inside diameter, identification | |||
IEC | International Electrotechnical | |||
|
|
|
| Commission |
IEEE | Institute of Electrical and | |||
|
|
|
| Electronics Engineers |
IMS | improved motor starting | |||
in. | inch | |||
in. H2O | inches of water | |||
in. Hg | inches of mercury | |||
in. lb. | inch pounds | |||
Inc. | incorporated | |||
ind. | industrial | |||
int. | internal | |||
int./ext. | internal/external | |||
I/O | input/output | |||
IP | internet protocol | |||
ISO | International Organization for | |||
|
|
|
| Standardization |
J | joule | |||
JIS | Japanese Industry Standard | |||
k | kilo (1000) | |||
K | kelvin | |||
kA | kiloampere | |||
KB | kilobyte (210 bytes) | |||
KBus | Kohler communication protocol | |||
kg | kilogram |
Appendix 73