RT-SVP07B-EN 5
Commonly Used Acronyms
For convenience, a number of acronyms and abbreviations are used throughout this manual. These acronyms are
alphabetically listed and defined below.
Table 1. Acronyms
act = active, actuator IGV = inlet guide vanes
AH = air handler Indep = Independent
annunc = annunciate INFO = Information Only (Diagnostic)
AS = airside I/O = input/output
aux = auxiliary IOM = installation/operation/ maintenance manual
BAS = Building Automation System IPAK = IntelliPak I™, IntelliPak II™
BCI = BACnet
®
Communication Interface Module IPC = interprocessor communications
ccfm = cfm/100 (ex. 120.5 CCFM = 12050 CFM) IPCB = Interprocessor Communications Bridge (mod)
cfm = cubic-feet-per-minute iwc = inches water column
cfg = configured, configuration LCI = LonTalk
®
Communication Interface Module
ckt = circuit LCI-I = LonTalk
®
Communication Interface for IPAK
cmd = command LH = left-hand
comp(s) = compressor, compressors lo = low
cond(s) = condenser, condensers LON = LonWorks
®
(Echelon
®
, etc.)
config = configured, configuration LRE = leaving recovery exhaust
ctrl = control max = maximum
CV = constant volume manif = manifolded
CVDA = Const. Volume airflow/Discharge Air temp ctrl MCM = Multiple Circuit Module
CVZT = Const. Volume airflow/Zone Temp ctrl MDM = Modulating Dehumidification Module
cw = clockwise min = minimum, minute
cww = counterclockwise misc = miscellaneous
cy = cycle mod = modulating, module
DCV = Demand Control Ventilation MPM = Multi-Purpose Module
dflt = default MWU = morning warm-up
diag = diagnostic NSB = Night Setback Panel
dmpr = damper num = number
DWU = daytime warm-up O/A, OA = outside air
DX = direct expansion (compressor control) occ = occupied
E/A, EA = exhaust air OVRD = override
ECEM = Exhaust Comparative Enthalpy Module PAR = partial system disable, auto reset
econ = economizer, economizing PMR = partial system disable, manual reset
ent = entering pos = position
evap = evaporator O/A, OA = outside air
F/A, FA = fresh air pot = potentiometer
funct = function PPM = parts per million
GBAS = Generic Building Automation System (module) press = pressure
HEAT = heat, heater, Heat (module) prop = proportional
HGBP = hot gas bypass psig = pounds-per-square-inch gauge pressure
HGP = hot gas bypass PWS = part-winding start
hi = high R/A, RA = return air
HI = Human Interface (module) refrig = refrigerant
HO = History Only (Diagnostic) RHI = Remote Human Interface (module)
HVAC = heating, ventilation and air conditioning rpm = revolutions-per-minute
ICS = Integrated Comfort System RH = right-hand, relative humidity
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