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.

Energy Saving & Auto On/Off
Enabling the Energy Saving and setting the appropriate time slots within the sub-menu “Time bands”
marked with the icon , and the parameters ES, table in Chapter 9, for the increase or decrease
in the set point, the unit will follow a new value of “Real Set” calculated by an algorithm based on the
parameters set according to the desired temperature curve, at the times you want.
With this function it is possible, therefore, to reduce the work of the unit during hours when the plant
requires less cooling and heating capacity, or increase the operation in the hours when the electricity
has a lower cost.
In the main screen the symbol will appear to indicate that the machine is operating within the
band Energy Saving.
Enabling the Auto On/Off, always within the sub-menu marked with the icon , instead, you will
force the unit in off at the times set.
The 3 time periods are unique and if both of these functions were enabled for the same time slot, the
controller will give preference to automatic turn off.
Below are shown the screens as an example.

Dynamic Set Point
Enabling the Dynamic Set Point and setting the appropriate parameters for the increase or decrease
of the set point and the range of outdoor temperatures in which this feature must be active, the Pa-
rameters table in under SD the controller will change the set point continuously according to a propor-
tional law.
With this function you can change the set point in order to ensure, to changing external conditions,
increased comfort or higher efficiency of the unit.
Below there is an example about the increase in efficiency achieved by enabling this function.
In the main screen, as for the Energy Saving, the will appear if this function is enabled.
The Dynamic Set Point is available only for air-water versions.

Alarm display
The system is able to identify all the alarms that may damage the unit.
When any type of fault or error on the unit occurs, the alarm symbol flashes on the display and
the buzzer will be on.
Press any key to turn the buzz off.
Press the “Alarm” button to view a brief description of the alarm.
Once the problem is solved, the same screen will show the steps to reset and reboot the unit.
The methodologies of alarms reset are different depending on the magnitude of the alarm, according
to the sequence priority:
Resettable alarm: low priority, resettable by button;
Resettable alarm with password: high priority, resettable by service center.
To reset an alarm you must press the button identified by “RESET”.
Pressing this button you can reset the highlighted alarm; if you want to reset all low priority alarms,
you can press the key identified by “RST ALL”.

D-Log Files Management
The controller records on a non-volatile memory, approximately the last 4 days of work.
You can download these log files directly to a USB stick, or on your PC by connecting properly to the
controller.
To download these files on a USB stick, plug into the USB port and navigate through the menu func-
tions until you see .
In this menu select “files log management”, and inside select “Send all logs to a USB” and press
enter.
Finished sending, inside the key will create a folder “ipro” with inside three files of alarms:
“alarm_a” that records all water side alarms and errors probes
“alarm_b” that records all circuit alarms such as high and low pressure
“alarm_c” that records all serious alarms such as overload compressors alarms.
file “Unit” where the last 4 days of operation with status and main variables are recorded.
All of these files are in “.txt” format and inside the recording date is in the format
YY/MM/DD/hh/mm/ss.
This operation is to be performed on both cards.
N.B.: Before you do this, make sure that there is no folder already named "ipro." on the USB stick.

Online Datalogger
The device is equipped with a web page where you can view and record all the main operating data
with a record time that can be set from 3 to 60 seconds.
To use this feature of the microprocessor is necessary to connect the PC to the card via LAN cable
cross type. For the IPG108D and IPG108E you have to use an USB/ETHERNET converter.
Set the IP address of the PC in the Internet Protocol Version 4 (TCP/IPv4) LAN connection in this way:
Address IP : 192.168.0.252
Subnet mask : 255.255.255.0
Open a browser and write the IP addresses of the devices: 192.168.0.250 default address,
This will open a Web page where you would add the following credentials:
User = admin
Password = Dixell
Example of this web page:

Remote Control
You can control the unit remotely in three different ways:
Free contacts reported in customer terminal block (X);
Bus protocol;
Remote keypad
Remote Control via Free Contacts
On the customer terminal block (X) are reported free terminals where you can connect any type of
thermostat able to provide a current pulse to close the relay to active the unit, and any boards to read
an alarm state.
For the water-water and air-water versions without water kit on board, there are also terminals for en-
abling of the pumps.
These contacts are usually free contacts normally open.
Here below there is an example of the customer terminal block, however see the wiring diagram at-
tached to the unit.

Remote Control via Bus
On the control unit device is available a serial port RS485 with MODBUS or Bacnet MSTP protocol, to
use this type of connection please respect the connection diagram below, respecting a bus connection
type, avoiding the creation of stars.
You can use the RS485 port Slave, depending on the position of the instrument in the network, only if
you do not already committed to control the unit.
To connect the devices to check, you can use two shielded wires of 0.5 mm2; use the input GND only
if you have communication problems.
On the control unit device is available also the Bacnet TCP/IP protocol, using the Ethernet port on the
IPG315. On the IPG108 for the Bacnet TCP/IP it is necessary the USB/Ethernet converter.
The device serial address is available in the “System Information” in the sub menu marked with the
icon.
In the screen shown in the figure are indicated, as well as ModBus address, the IP address of the
controller, which it is required for the activation of the online instrument data logger, the software re-
lease and the software installed on the keypad
Changing IP and mod-bus addresses of the boards must be carried out by authorized personnel only,
pain of revocation of the warranty.

Remote Control via Remote Keypad
You can control the unit remotely, using a second keypad, connected in parallel to the one present on
the unit.
Also for this type of connection you have to respect the connection diagram below, respecting a bus
connection type, thus avoiding the creation of stars.
Wrong wiring may cause serious damage to the keypad or controller.
Once connected the second keypad, you will need to update the software of same.
With the unit off, you must navigate through the menu functions until you have highlighted the icon.
.
Within this submenu you will need select the "Update Visograf" command and press "Enter". You will
see the loading bar to indicate the progress of the update, after which the keypad will have the same
functions as the one on the unit.

User Parameters Table
The parameters are organized in macro groups. Below are the areas dedicated for programming of
user parameters:
ST
Thermoregulation parameters
SD
Dynamic set point parameters
ES
Energy saving parameters
SP
Remote S/W & Automatic Change Over
Thermoregulation parameters
Parameters
Description
min
max
u.m.
Resolution
ST1
Summer set point
ST02
ST03
°C/°F
dec/int
ST4
Winter set point
ST04
ST05
°C/°F
Dec/ int
Dynamic set point
Parameters
Description
min
max
u.m.
Resolution
Sd1
Summer dynamic set point offset
max
-50.0
110.0
°C
Dec
Sd2
Winter dynamic set point offset max
-50.0
110.0
°C
Dec
Sd3
Summer set external air tempera-
ture
-50.0
110
°C
Dec
Sd4
Winter set external air temperature
-50.0
110
°C
Dec
Sd5
Summer differential external air
temperature
-50.0
110.0
°C
Dec
Sd6
Winter differential external air tem-
perature
-50.0
110.0
°C
Dec
Energy Saving
Parameters
Description
min
max
u.m.
Resolution
ES1
Time band 1 begin
0
23.50
Min
10 min
ES2
Time band 1 end
0
23.50
Min
10 min
ES3
Time band 2 begin
ES2
23.50
Min
10 min
ES4
Time band 2 end
0
23.50
Min
10 min
ES5
Time band 3 begin
ES4
23.50
Min
10 min
ES6
Time band 3 end
0
23.50
Min
10 min

ES7
Monday
0 = No time band
1 = Time band 1
2 = Time band 2
3 = Time band 1 & 2
4 = Time band 3
5 = Time band 1 & 3
6 = Time band 2 & 3
7 = All time band
0
7
ES8
Tuesday
0 = No time band
1 = Time band 1
2 = Time band 2
3 = Time band 1 & 2
4 = Time band 3
5 = Time band 1 & 3
6 = Time band 2 & 3
7 = All time band
0
7
ES9
Wednesday
0 = No time band
1 = Time band 1
2 = Time band 2
3 = Time band 1 & 2
4 = Time band 3
5 = Time band 1 & 3
6 = Time band 2 & 3
7 = All time band
0
7
ES10
Thursday
0 = No time band
1 = Time band 1
2 = Time band 2
3 = Time band 1 & 2
4 = Time band 3
5 = Time band 1 & 3
6 = Time band 2 & 3
7 = All time band
0
7
ES11
Friday
0 = No time band
1 = Time band 1
2 = Time band 2
3 = Time band 1 & 2
4 = Time band 3
5 = Time band 1 & 3
6 = Time band 2 & 3
7 = All time band
0
7
ES12
Saturday
0 = No time band
1 = Time band 1
2 = Time band 2
3 = Time band 1 & 2
4 = Time band 3
5 = Time band 1 & 3
6 = Time band 2 & 3
7 = All time band
0
7
ES13
Sunday
0 = No time band
1 = Time band 1
2 = Time band 2
3 = Time band 1 & 2
4 = Time band 3
5 = Time band 1 & 3
6 = Time band 2 & 3
7 = All time band
0
7
ES14
Summer increase set energy saving
-50.0
110.0
°C
Dec