10
RT-SVX24J-EN
General Information
Unit Nameplate
One Mylar unit nameplate is located on the outside upper
left corner of the control panel door. It includes the unit
model number, serial number, electrical characteristics,
weight, refrigerant charge, as well as other pertinent unit
data. A small metal nameplate with the Model Number,
Serial Number, and Unit Weight is located just above the
Mylar nameplate, and a third nameplate is located on the
inside of the control panel door.
Compressor Nameplate
The Nameplate for the Scroll Compressor is located on the
compressor lower housing. Max amps is listed on the
nameplate and is the absolute highest amp load on the
compressor at any operating condition (does not include
locked rotor amps or inrush). This value should never be
exceeded.
Commonly Used Acronyms
For convenience, a number of acronyms and
abbreviations are used throughout this manual. These
acronyms are alphabetically listed and defined below.
•
AC = Air Cooled Condenser
•
BAS = Building automation systems
•
BCI = BACnet® Communication Interface module
•
CFM = Cubic-feet-per-minute
•
CKT. = Circuit
•
CLV = Cooling valve (reheat only)
•
CV = Constant volume
•
CW = Clockwise
•
CCW = Counterclockwise
•
E/A = Exhaust air
•
EC = Evaporative Condenser
•
ECEM = Exhaust/comparative enthalpy module
•
RT = Rooftop unit
•
O/A = Outside air
•
GBAS = Generic building automation system
•
HGBP = Hot gas bypass
•
MCHE = Microchannel Condenser Coil
•
HGRH = Hot gas reheat
•
HI = Human Interface
•
HVAC = Heating, ventilation and air conditioning
•
I/O = Inputs/outputs
•
IOM = Installation/operation/ maintenance manual
•
IPC = Interprocessor communications
•
IPCB = Interprocessor communications bridge
•
LCI-I = LonTalk® Communication Interface for
IntelliPak
•
LH = Left-hand
•
MCM = Multiple compressor module
•
MDM = Modulating Dehumidification Module
•
MPM = Multipurpose module
•
MWU = Morning warm-up
•
NSB = Night setback
•
O/A = Outside air
•
psig = Pounds-per-square-inch, gauge pressure
•
PTFE = Polytetrafluoroethylene (Teflon®)
•
R/A = Return air
•
RAH = Return air humidity
•
RH = Right-hand
•
RHV = Reheat valve
•
RPM = Revolutions-per-minute
•
RTM = Rooftop module
•
S/A = Supply air
•
SCCR = Short circuit current rating
•
SCM = Single circuit module
•
SZ = Single-zone (unit airflow)
•
SZVAV = Single zone variable air volume
•
TCI = Tracer communications module
•
UCM = Unit control modules
•
VAV = Variable air volume
•
VCM = Ventilation control module
•
VOM = Ventilation override module
•
w.c. = Water column
•
WCI = Wireless Communication Interface
Unit Description
Each Trane commercial, single-zone rooftop air
conditioner ships fully assembled from the factory. An
optional roof curb, specifically designed for the S_HJ units
is available from Trane. The roof curb kit must be field
assembled and installed according to the latest edition of
the roof curb installation manual.
Trane Commercial Rooftop 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 acronym UCM is used extensively throughout
this document when referring to the control system
network. These modules through Proportional/Integral
control algorithms perform specific unit functions which
provide the best possible comfort level for the customer.
They are mounted in the control panel and are factory
wired to their respective internal components. They
receive and interpret information from other unit
modules, sensors, remote panels, and customer binary
Available tonnages
Air-Cooled Tonnages
Evaporative Condenser
Tonnages
90
100
105
118
120
128
130
140
150
162
