Kohler KG80 Maintenance Manual page 47

N, norm. normal (power source)
NA not available, not applicable
nat. gas natural gas
NBS National Bureau of Standards
NC normally closed
NEC National Electrical Code
NEMA National Electrical
Manufacturers Association
NiCd nickel cadmium
NFPA National Fire Protection
Association
Nm newton meter
NO normally open
no., nos. number, numbers
NPS National Pipe, Straight
NPSC National Pipe, Straight-coupling
NPT National Standard taper pipe
thread per general use
NPTF National Pipe, Taper-Fine
NR not required, normal relay
Ns nanosecond
OC overcrank
OD outside diameter
OEM original equipment
manufacturer
OF overfrequency
opt. option, optional
OS oversize, overspeed
OSHA Occupational Safety and Health
Administration
OSHPD Office of Statewide Health
Planning and Development
(California)
OV overvoltage
oz. ounce
p., pp. page, pages
PC personal computer
PCB printed circuit board
pF picofarad
PF power factor
ph., ø phase
®
PHC Phillips head Crimptiter
(screw)
®
PHH Phillips hex head (screw)
PHM pan head machine (screw)
PLC programmable logic control
TP-7173 10/20
PMG permanent magnet generator
pot potentiometer, potential
ppm parts per million
PROM programmable read-only
memory
psi pounds per square inch
psig pounds per square inch gauge
pt. pint
PTC positive temperature coefficient
PTO power takeoff
PVC polyvinyl chloride
PVC polyvinyl chloride
PWM pulse width modulated, pulse
width modulation
qt. quart, quarts
qty. quantity
R replacement (emergency)
power source
rad. radiator, radius
RAM random access memory
RDO relay driver output
ref. reference
rem. Remote
Res/Co Residential/Commercial
ml
RFI radio frequency interference
RH round head
RHM round head machine (screw)
rly. Relay
rms root mean square
rnd. Round
RO read only
ROM read only memory
rot. rotate, rotating
rpm revolutions per minute
RS right side
RTDs resistance temperature
detectors
RTU remote terminal unit
RTV room temperature vulcanization
RW read/write
SAE Society of Automotive
Engineers
scfm standard cubic feet per minute
SCR silicon controlled rectifier
(electrical), selective catalytic
reduction (exhaust emissions)
s, sec. second
Systeme international d'unites,
SI
International System of Units
SI/EO side in/end out
sil. Silencer
SMTP simple mail transfer protocol
SN serial number
SNMP simple network management
protocol
SPDT single-pole, double-throw
SPST single-pole, single-throw
spec specification
specs specification(s)
sq. square
sq. cm square centimeter
sq. in. square inch
SMS short message service
SS stainless steel
std. standard
stl. Steel
tach. Tachometer
TB terminal block
TCP transmission control protocol
TD time delay
TDC top dead center
TDEC time delay engine cooldown
TDEN time delay emergency to
normal
TDES time delay engine start
TDNE time delay normal to
emergency
TDOE time delay off to emergency
TDON time delay off to normal
temp. temperature
term. Terminal
THD total harmonic distortion
TIF telephone influence factor
tol. Tolerance
turbo. Turbocharger
typ. typical (same in multiple
locations)
UF underfrequency
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