Trane IPG315D User manual

For controller on
CXAO / RTXB heat pumps
CGCM / CXCM 2 circuit units
CNT-SVU005C-GB
Original instructions
User Guide

Table of contents
Advanced electronics .................................................................................................3
Technical Specifications.............................................................................................4
Display description .....................................................................................................6
Submenu....................................................................................................................7
Operating Variables....................................................................................................8
Unit startup.................................................................................................................8
Set Point...................................................................................................................10
Energy Saving, Auto On/Off, ....................................................................................11
Dynamic Set Point………………………………………………………………………….12
Alarm display............................................................................................................13
D-Log Files Management .........................................................................................14
Online Datalogger.....................................................................................................15
Remote control.........................................................................................................16
Controlling the unit remotely by free contacts...........................................................16
Controlling the unit remotely by Bus protocol ...........................................................17
Controlling the unit remotely by Remote Keypad......................................................18
User parameter table................................................................................................19

WARNING
Supply the unit at least 24 hours before the initial startup to heat the compressor oil. In conditions of
low water temperature, the pumps could be started in order to avoid freezing conditions. In order to
avoid the breaking of heat exchangers due to water hammer, be sure to keep to water valves open.
Failure to follow these instructions will void the warranty.
Advanced electronics
The control logic is able to manage air/water and water/water chillers, chillers with total recovery and
heat pump versions.
This control logic, according the type of the unit, is able to handle multi scroll units and screw units
with a proportional step regulation according inlet water temperature or proportional + integral regula-
tion according leaving water temperature.
.

Technical Specifications
IPG315D:
Power supply: 24V AC/DC
Digital inputs: 20 opto-insulated at 24Volt AC current on the contact
Analog inputs: 10 configurables: 0÷5V, 4÷20mA, NTC, PTC, digital input
Analog outputs Opto-Insulated: 2 configurables: 0÷10V, external relay driving, PWM signal
4 configurables: 0÷10V signal, external relay driving
Relay outputs: 10 x 5(2) A @ 250V SPST + 5 SSR type
Remote terminal N° 1 output for connection of up to two remote terminals (100M)
RTC
Serial outputs
1 USB
1 Ethernet with Bacnet TCP/IP communication protocol
1 connecter for/GSM modem /XWEB modem
1 RS485 master with Mod_BUS communication protocol
1 RS485 slave with Mod_BUS or Bacnet MSTP communication protocol
1 CANbus to connect I/O expansion modules

IPG108D / IPG108E:
Power supply: 24V AC/DC
Digital inputs: 11 opto-insulated at 24Volt AC current on the contact
Analog inputs : 6 configurables: 0÷5V, 4÷20mA, NTC, PTC, digital input
Analog outputs Opto-Insulated: 4 configurables: 0÷10V signal, external relay driving
Relay outputs
8 x 5(2) A @ 250V SPST
Remote terminal
N° 1 output for connection of up to two remote terminals (100M)
RTC
LED DISPLAY INTEGRATED (IPG108E)
Serial outputs
1 USB; Bacnet TCP/IP using USB/Ethernet adapter
1 RS485 master with Mod_BUS communication protocol or 1 LAN to connect I/O expansion module
1 RS485 slave with Mod_BUS or with Bacnet MSTP communication protocol

Display description
Through the visual keyboard LCD display, you can monitor and change the status of the unit, using
the 8 buttons positioned in the lower part of the keypad. Available information on display:
At the unit startup, the main screen will be as follows:
In case the unit is controlled by remote or during shutdown by time slot, the main screen will be:
Through the selection keys you can enter in the sub-sections of the main screen, where you can view
respectively:
“PROBES”: displays readings of all the sensors connected to the machine;
“SET”: displays set point of utilities;
“ALARM”: displays of active alarms;
“SERVICE”: allows entry in the menu of the instrument;
“CIRC”: displays the screens of the state of circuits and working conditions of each component.
In addition to the submenus input buttons mentioned above, in the main screen there is also the key
evidenced by the sun to activate the unit in summer mode, and the button with the
snow , to activate the unit in heating mode.

Submenu
The LCD display provides a simple and immediate interaction with the unit.
Pressing the "SERVICE" button, you can enter in the screens dedicated to the displaying and/or to the
configuration of components and user parameters of the unit.
Using the arrow keys you can select the below areas reserved for displaying the features of each
component. The areas used for this application are:
Parameters programming
Time bands programming
Current compressors parameters display
Fans and pumps current parameters display
Alarm display
Alarm history display
Defrost status display
Inputs and outputs status display
Auxiliary outputs status display
Recovery parameters display (Only for chiller with recovery)
Display setting and di log files management
Access to the link mentioned above is carried out by pressing the "ENTER" key after highlighting the
desired icon using the or buttons. By pressing the "ESC" anytime you return to the main
screen.

Operating Variables
Pressing the "Circ" button, you can see the status of all unit components and the value read by the
pressure transducers.
In this way it is possible to make a quick check on how the unit is working.
In these screens, you can see, at first, the state of all the compressors, with the status indication of
any capacity control or the percentage of the 0-10V signal supplied from the device to the continuous
modulation with frequency and if preventive functions “unloading” are actives.
Using the arrow keys, you can enter in the screen where the pressure status of the unit is displayed, in
order to make a check on the status of the unit and the refrigerant charge, according to refrigerant gas
and the external conditions: air temperature and water temperature.
The next two screens show, respectively, the pumps and fans activation status.
If the unit is equipped with EC fans or otherwise, AC fans regulated by continuous signal is shown the
percentage of the value of the 0-10V signal provided by the controller for their modulation.

Unit Startup
To activate the unit press for more than 2 seconds the button indicated by the symbol of the sun
, or with the snow , until the label “Unit Stand-by” is displayed.
Following the activation, on the main screen, according to the selected mode, you will see the label
“Unit ON: Cooling”, if you selected the summer mode, or “Unit ON: Heating”, if you selected the
winter mode, and the button of the other mode will disappear.
As for the activation, you can turn off the unit by simply pressing for more than 2 seconds the same
button that you used for the activation.
Following the shutdown of the unit, on the main screen the label “Unit Stand-by” and the button of the
other mode will display.
In the case that the unit is controlled by remote or during the time slot shutdown, on the main screen
will display the label, respectively “Unit Remote Off” or “Unit Off by Clock”.
At the start up, first of all, the pumps will run and, at the same time, the compressor icon “com-
pressor enable” will begin to flash for a set time, after that, the compressor will run and the related
icon will displayed fix.
The cycles are easily recognizable by the icons of the active components, which appear on the main
screen, in particular for air-water versions:
Chiller
Heat Pump
Defrost
For water-water unit, instead:
Chiller
Heat Pump

SetPoint
Pressing the "SET" button on the main screen, you enter in the screen shown below.
In this menu you can set the cold “Chiller” and the hot “Recovery” set point.
To change the value, highlight the set point to be changed using the arrow keys, press the Set button
to enable editing, take it to the desired value using the UP or Down buttons and press Set again to
confirm.
This screen also shows an indication of the state of activation of the functions Energy Saving and
Dynamic Set Point.
During this operation, the “Real Set” label is displayed; if the Energy Saving or the Dynamic Set
Point is active, the “Real Set” is the set point value including the variation for Energy Saving or for
dynamic set; while the set point represents the real set when the Energy Saving or the Dynamic Set
Point are not active.
An example below is shown in the pictures below.