RT-SVX24Q-EN
11
Compressor Module
(MCM - Standard on all units)
The Compressor module, upon receiving a request for
mechanical cooling, energizes the appropriate
compressors and condenser fans. It monitors the
compressor operation through feedback information it
receives from various protection devices.
Human Interface Module
(HI - 1U65 Standard on all units)
The Human Interface module enables the operator to
adjust the operating parameters for the unit using a 16
key keypad. The 2 line, 40 character LCD screen
provides status information for the various unit
functions as well as menus for the operator to set or
modify the operating parameters.
Heat Module
(Used on heating units)
The Heat module, upon receiving a request for Heating,
energizes the appropriate heating stages or strokes the
Modulating Heating valve as required.
Ventilation Override Module
(VOM - 1U51 Optional)
The Ventilation Override module initiates specified
functions such as; space pressurization, exhaust,
purge, purge with duct pressure control, and unit off
when any one of the five (5) binary inputs to the
module are activated. The compressors and condenser
fans are disabled during the ventilation operation. If
more than one ventilation sequence is activated, the
one with the highest priority is initiated.
Variable Speed Module
(VSM — Optional 1U123)
The Variable Speed module used in eFlex™ variable
speed units provides a 0-10 VDC output analog speed
signal to control the compressor VFD.
lists VSM output signal (VDC) and corresponding
compressor speed (RPM) at 0%, 50% and 100%
Intellipak command speeds (Spd %).
Table 4. VSM output signal (VDC)
Varia-
ble
speed
unit
Spd 0%
Spd 50%
Spd 100%
VDC
RPM
VDC
RPM
VDC
RPM
90-150T
0
1500
5.0
3750
10.0
6000
Note:
Voltages and speed +/- 1%
During Auto Run mode, the Intellipak command speed
(Spd %) can be monitored at the HI. The 0-10VDC signal
and compressor RPM is displayed on the TRV200
inverter keypad (1U128).
Figure 1. Display—TRV200 inverter keypad (1U128)
0-10VDC
signal
The VSM output signal can also be checked in Service
Test mode. Compressor relays should be commanded
off as shown in
, and the Spd%
command can be changed at the HI. Then check the
VSM output signal against
. VSM
output signal voltage is measured between terminals
53 and 55 at the VFD (3U119) input.
Figure 2. VSM output signal
Interprocessor Communications Board
(IPCB - Optional used with the Optional Remote Human
Interface)
The Interprocessor Communication Board expands
communications from the rooftop unit UCM network to
a Remote Human Interface Panel. DIP switch settings
on the IPCB module for this application should be;
Switches 1 and 2 “Off”, Switch 3 “On”.
Lontalk®/BACnet® Communication
Interface Module
(LCI/BCI - Optional - used on units with Trane ICS™ or
3rd party Building Automation Systems)
The LonTalk/BACnet Communication Interface
modules expand communications from the unit UCM
network to a Trane Tracer Summit™ or a 3rd party
building automation system and allow external
setpoint and configuration adjustment and monitoring
of status and diagnostics.
Exhaust/Comparative Enthalpy Module
(ECEM - Optional used on units with Statitrac and/or
comparative enthalpy options)
The Exhaust/Comparative Enthalpy module receives
information from the return air humidity sensor, the
outside air humidity sensor, and the return air
temperature sensor to utilize the lowest possible
humidity level when considering economizer
operation. In addition, it receives space pressure
Содержание IntelliPak 2 Series
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