RT-SVX34F-EN
11
General Information
Commonly Used Acronyms and
Abbreviations
About the Unit
Overall unit dimensional data is illustrated in
Figure 1,
p. 13
to
Figure 9, p. 17
. Each package rooftop unit ships
fully assembled and charged with the proper refrigerant
quantity from the factory. They are controlled by a
microelectronic unit control processor. Several solid state
modules are grouped to form the “Control System”. The
number of modules within any given control system will
be dependent upon the options and accessories ordered
with the unit. Acronyms are used extensively throughout
this manual when referring to the “Control System”.
Basic unit components include:
•
Scroll compressors
•
One (1) Intertwined Evaporator Coil
•
One (1) Supply Fan
•
Three (3) to Four (4) Condenser Fans
•
One (1) Microchannel Condenser Coil
•
Filters (type is dependent on option selection)
BAS
= Building Automation System
PGA
= Power Exhaust Actuator
CFM
= Cubic Feet per Minute
PSIG
= Pounds Per Square Inch Gauge pressure
CLV
= Cooling Valve (Reheat only)
PHM
= Phase monitor
COMM = Module Designation for TCI/LCI
R/A
= Return Air
CV
= Constant Volume
RAH
= Return Air Humidity
CW
= Clockwise
RAT
= Return Air Temperature sensor
CCW = Counterclockwise
RH
= Right
Hand
DSP = Direct Space Pressure control
RHP
= Reheat Pumpout Solenoid
DTS
= Discharge Air Sensor
RHV
= Reheat Valve
DWU = Daytime Warm-up
RLP
= Reheat Low Pressure Cutout
E/A
= Exhaust Air
RPM
= Revolutions Per Minute
ECA
= Economizer Actuator
RTAM = ReliaTel Air Handler Module
EET
= Entering Evaporator Temperature Sensor
RTDM
= ReliaTel Dehumidification Module
F/A
= Fresh Air
RTVM
= ReliaTel Ventilation Module
FFS
= Fan Failure Switch
RTOM = ReliaTel Options Module
ICS
= Integrated Comfort System (See BAS)
RTRM = ReliaTel Refrigeration Module
IDM = Indoor Fan Motor
S/A
= Supply Air
I/O =
Input/Output
SPC
=
Space
Pressure Calibration Solenoid
IOM =
Installation, Operation and Maintenance manual (Ships
with each unit)
SPP
= Space Pressure Transducer
LCI
= LonTalk® Communication Interface
SPT
= Static Pressure Transducer
LCI-R = LonTalk Communication Interface with ReliaTel
SZVAV = Single Zone Variable Air Volume
LH
= Left Hand
TCI
= Trane Communication Interface
MAS
= Mixed Air Sensor
TCO
= Temperature Cutout
MAT
= Mixed Air Temperature
TDL
= Temperature Discharge Limit
MCHE
Microchannel
VAV
= Variable Air Volume
MWU = Morning Warm Up
VFD
= Variable Frequency Drive
NSB = Night Setback (programmable ZSM BAYSENS119*)
VHR
= Ventilation Heat Relay (VAV box relay)
O/A
= Outside Air
W.C.
= Water Column
OAH
= Outside Air Humidity
XFSP
= Exhaust Fan Setpoint
OAT
= Outside Air Temperature
ZSM
= Sensor, Zone Sensor, Zone Sensor Module, Zone Panel
