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A A c c r r o o n n y y m m s s a a n n d d A A b b b b r r e e v v i i a a t t i i o o n n s s
Table 17. Acronyms and abbreviations (continued)
Item
s
second
S1, S2
Switch #1, Switch #2
Saturday
SAT
Saturated Discharge Temperature
SDT
Simult
Simultaneous
SL
Service Line
Soft
Software
SP
Set Point
SQ.
Square
Src
Source
SSS
Solid State Starter
Saturated Suction Temperature
SST
Stating Point
StartPt
Suct
Suction
Sunday
SUN
Sys
System
SysChEWT
System Chilled Entering Water Temperature
SysChLWT
System Chilled Leaving Water Temperature
SysHotEWT
System Hot Entering Water Temperature
SysHotLWT
System Hot Leaving Water Temperature
Temp
Temperature
A–3
Expansion
Table 17. Acronyms and abbreviations (continued)
Item
Temp Diff -
Temperature Differential (minus)
Temp Diff +
Temperature Differential (plus)
Temperatures
TEMPS
Thursday
THU
TT
Twin Turbine
Tuesday
TUE
Thermal Expansion Valve
TXV
U1, U2
binary 1, binary 2
UL
Underwriters Laboratories
UV
Ultraviolet
Volts, Alternating Current
VAC
Var
Variable
Variab
Variable
Volts, Direct Current
VDC
Ver.
Version
Variable Frequency Drive
VFD
Wednesday
WED
analog output: y1 = condenser, y2 =
Y1, Y2
evaporator
analog output
Y4
Date: Year.Month.Day
YY.MM.DD
Expansion
ARTC-SVX005B-EN
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