General Information
PKG-SVP01E-EN
5
Glossary of Terms
For a glossary of terms see
. Carefully
review these definitions since they are used throughout
this document and the Installation, Operation,
Maintenance Guide (IOM). Knowledge of these terms is
essential in gaining an understanding of how these units
operate.
IntelliPak
™
Points List
UCM Control System
The IntelliPak™self-contained units are controlled by a
microelectronic control system that consists of a network
of modules and are referred to as Unit Control Modules
(UCM).
The unit size, type, heating functions, peripheral devices,
options, exhaust capabilities, etc. determine the number
and type of modules that a particular rooftop unit may
employ.
These modules perform specific unit functions using
proportional/integral control algorithms. They are
mounted in the unit control panel and are factory wired to
their respective internal components.
By processing analog and binary inputs, each module
supplies outputs in the form of modulating voltages (from
SRC = source
Stg = stage
Stnd = standard
STP = SETPOINT
Sw = switch
SZ = single-zone (unit airflow)
TCI = Tracer communications interface (module)
Press = pressure
Temp = temperature
UCM = Unit Control (Module)
Unocc = unoccupied
VAV = variable air volume
VCM = ventilation control module
VDC = volts DC
Ventil = ventilation
VFD = variable frequency drive
Table 1.
Acronyms (continued)
VOM = ventilation override module
VVDA=Variable Speed Fan (VAV)/Discharge Air Temp Control
W/ = with
w.c. = water column
WU = warmup
XL = across-the-line start
Table 1.
Acronyms (continued)
Table 2.
IntelliPak
™
points list
Unit
Module
Analog Inputs
Analog Outputs
Binary Inputs
Binary Outputs
RTM
ASE damper min pos
O/A damper actuato
Emergency stop
External auto/stop
Unoccupied/occupied
Alarm
Dirty filter
VAV changeover
Supply airflow proof
VAV box drive max
CV unoccupied mode indicator
Alarm
Fan run request
Water pump request
SCM
Evap temp sensor
Sat cond temp sensor
Cond fan speed
(Low ambient)
Low pressure control Compressor
proving
Compressor relay Condenser fan A,
B
MCM
Evap temp sensor
Sat cond temp sensor
Cond fan speed
(Low ambient- ckt 1 & 2)
Low pressure control- ckt 1 & 2
Compressor proving- ckt 1 & 2
Compressor relay
Condenser fan 1A, 1B, 2A, 2B
Heat Module
MWU temp sensor
Modulating heat actuator
Low entering air
Heat 1 relay
Heat 2 relay
Heat 3 relay
ECEM
Return air temp sensor
Return air humidity sensor
VOM
N/A
N/A
VOM mode A, B, C, D, E contacts
VOM relay
GBAS
4 inputs from these choices:
Occ zone cool setpt
Occ zone heat setpt
Unocc zone cooling setpt
Unocc zone heat set
Min O/A flow setpt
Sup air cooling setpt
Sup air heating setpt
Sup air static pres setp
N/A
Demand limit contacts
Dirty filter
Refrigeration fail relay
Heat fail relay
Fan fail relay
TBD relay
