Exhausto EXact2 VEX240 series Installation guide

EXact2 control system
Basic instructions VEX320-370/CX340-350/
VEX310T-350T
EXHAUSTO
OK
EXHAUSTO
Esc
OK
CX300
Original instructions
3004811-2018-09-14 EXact2_VEX300
EXHAUSTO A/S
Odensevej 76
DK-5550 Langeskov
Tel. [phone]
Fax: [phone]
[email protected]
www.exhausto.dk

Menu structure
Main menu
Operating mode >
Operating readings >
Settings >
Alarm and info >
Time and weekly plan >
Versions >
Safety functions >
Service >
Exit technician menu >
Save settings >
Select menu
using arrow up
and arrow
down keys.
Activate using
the OK key.
23
60
°C
%
17-05-2017 14:32
Technician and service menu:
User menu:
Select menu using
arrow up and arrow
down keys.
Activate using the
OK key.
Press ESC to
switch between the
user and
technician menu,
or to leave the
1 Operating mode
Operation > Manual
2 Operating readings
Air temperature >
Airflows >
MC parameters >
Temp. reg. units >
Pressure >
Heating coil >
CH cooling unit >
CU cooling unit >
MXCU
CCW
Timers >
CO2/RH sensors >
3 Settings
Unit >
Configuration >
General >
Accessories >
BMS >
Web server >
Backup/restore >
4 Alarm and info
Information
Alarm
Warning
Reset alarms >
Current list >
Alarm log list >
Delete alarm log >
Yes
No
No
No
No
5 Time and weekly plan
Date and time >
Weekly plan >
6 Versions
PO Number >
Hardware >
Software >
About EXact >
1234567
7 Safety functions
Fire alarm >
Frost protection HCW >
Frost protection HR >
CH cooling unit >
8 Service
Filter >
VDI 6022 >
Forced start >
Calibration of MPT >
Light > Off
Esc
OK
10 Save settings
Save settings >
Last saved:
Date
Time
No
17 .05.2017
15:30.22
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Symbols and software version
Symbols used in these instructions.................................................................... 6
Software version.................................................................................................... 6
Software version ............................................................................................. 6
1. User mode
1.1. HMI panel................................................................................................................ 7
1.2. Display icons..........................................................................................................8
2. Operation, access codes and selecting language
2.1. Using the HMI panel.............................................................................................10
2.1.1. Using keys within the menus..........................................................................10
2.2. Access codes for technician and service menus............................................. 11
2.3. IMPORTANT when servicing...............................................................................12
2.3.1. Auxiliary service panel................................................................................... 13
Menu 3.2 - Selecting language............................................................................15
Menu 3.2.1 - Setting date and time..................................................................... 15
Menu 3.2 - Reset settings....................................................................................15
Menu 3.2 - Reload database................................................................................16
Menu 3.6 - Web server......................................................................................... 16
Menu 3.7 - Backup/restore.................................................................................. 17
3. Starting up the unit for operation
3.1. Getting started..................................................................................................... 18
Start configuration..........................................................................................19
Menu 3.3 - Configuration................................................................................19
Menu 3.4 - Accessories..................................................................................20
Menu 3.4 Connecting heating and cooling units ........................................... 22
3.2. VEX320-330/CX340-350/VEX310T-350T de-icing methods............................... 22
3.2.1. Bypass de-icing .............................................................................................22
3.2.2. Two de-icing methods ................................................................................... 22
3.3. Temp.controlled frost protection - selection of method VEX320-330/
VEX310T-350T............................................................................................................. 23
3.4. Press. controlled frost protection - selection of method VEX320-330/
CX340-350/VEX310T-350T.......................................................................................... 24
3.5. VEX340 de-icing methods................................................................................... 24
Principle ........................................................................................................ 24
3.6. VEX 350-370 de-icing methods...........................................................................25
Principle ........................................................................................................ 25
Selecting method for VEX350/360/370..........................................................26
Menu 3.5 BMS.......................................................................................................27
Menu 3.5 - BMS............................................................................................. 27
3.7. What is an indoor air quality level?....................................................................27
Menu 1 - Selecting operating mode................................................................... 28
Menu 3.1.1 - Operating settings - Air regulation............................................... 28
Menu 3.1.1 - Operating settings Balance.......................................................30
Menu 3.1.1.5 Regulators ...............................................................................31
Menus 3.1.1.1.1 to 3.1.1.1.4 Configuring the indoor air quality levels............ 32
Menu 3.1.1.1.x - Air set point ........................................................................ 32
Menu 3.1.1.1.x - Temperature set point ........................................................ 32
Menu 3.1.1.1.x - Absolute / Relative temperature .........................................32
Menu 3.1.1.1.x - Cooling relative start .......................................................... 33
Menu 3.1.1.1.x - Heating relative start .......................................................... 33
Menu 3.1.1.1.x - Cooling absolute start ........................................................ 33
Menu 3.1.1.1.x - Heating absolute start ........................................................ 34
Generally on temperature regulation .............................................................34
Menu 3.1.8 - Temperature limits.....................................................................34
Menu 3.1.1.1.x - Supply air regulation, absolute ...........................................36
Menu 3.1.1.1.x - Room temperature regulation, absolute .............................37
Menu 3.1.1.1.x - Supply air regulation, relative .............................................38
Menu 3.1.1.1.x - Room temperature regulation, relative ...............................40
Menu 3.1.1 - Operation settings - Temperature regulation.............................. 41
Compensation...................................................................................................... 42
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Menu 3.1.2 - Air compensation........................................................................... 42
Menu 3.1.2.1 - CO2 compensation ............................................................... 43
Menu 3.1.2.2 - Humidity compensation of airflow ......................................... 44
Menu 3.1.2.3 - Airflow reduction ................................................................... 44
Menu 3.1.2.4 - Outdoor compensation of airflow .......................................... 45
Menu 3.1.3 - Temperature compensation.......................................................... 46
Outdoor air temperature compensation (menu 3.1.2.1) ................................46
Summertime compensation (menu 3.1.2.2) ..................................................47
Menu 3.1.4 + Menu 8.1 - Filter (monitoring in case of pressure) .................. 47
Menu 3.1.4 + Menu 8.1 - Filter (monitoring with hour counter) ..................... 48
Menu 3.1.5 - Night-time cooling .................................................................... 48
Menu 3.1.6 - Cold recovery............................................................................51
Menu 3.1.7 - Fan limits...................................................................................51
Menu 3.1.8 - Temperature limits for supply air and room...............................51
Room temperature limits................................................................................52
Menu 3.1.9 - MXHP settings.......................................................................... 52
Menu 3.1.10 - MCOCW settings.................................................................... 52
Menu 5 - Time and weekly plan.......................................................................... 53
Menu 5.1 - Date and time...............................................................................53
Menu 5.2 - Weekly plan ................................................................................ 53
Menu 7 - Safety functions................................................................................... 54
Menu 7.1 - Fire alarm.....................................................................................54
Menu 7.2 - Frost protection of HCW ............................................................. 55
Menu 7.3 - Frost protection heat exchanger ................................................. 56
Tice(VEX320-330)..........................................................................................56
4. Operation
Menu 2 - Operating readings.............................................................................. 58
Menu 2.1 - Air temperatures ......................................................................... 58
Menu 2.1.1 - Set points for regulators ...........................................................59
Menu 2.2 - Airflows ....................................................................................... 59
Menu 2.3 - Motor controller parameters (MC parameters) ............................59
Menu 2.4 - Temperature regulating units ...................................................... 60
Menu 2.5 - Pressure.......................................................................................61
Menu 2.6 - Heating coil ................................................................................. 61
Menu 2.7 - CH cooling unit.............................................................................61
Menu 2.8 - CCW cold water coil ....................................................................62
Menu 2.9 - CU cooling unit.............................................................................62
Menu 2.10 - MXCU external cooling unit....................................................... 62
Menu 2.11 - External cooling/heating pump unit MXHP.................................62
Menu 2.12 - Hour counters (VEX340-370/CX340-350/VEX310T-350T)........62
Menu 2.13 - CO2/RH sensors (if mounted)....................................................63
Menu 6 - Versions................................................................................................ 63
Menu 8 - Service...................................................................................................63
Auxiliary service panel................................................................................... 64
Menu 8.2 - VDI 6022......................................................................................65
Menu 8.3 - Forced start .................................................................................66
Menu 8.3.1 Fans............................................................................................ 66
Menu 8.3.2 Heating coil................................................................................. 66
Menu 8.3.3 Cooling unit................................................................................. 67
Menu 8.3.4 Dampers and relays....................................................................67
Menu 8.4 - Calibrating MPT........................................................................... 67
5. Alarms
5.1. Alarms and info (Menu 4).................................................................................... 69
5.2. Reset alarms.........................................................................................................69
5.3. Alarm display – causes of errors....................................................................... 69
5.4. List of alarms........................................................................................................71
Appendix 1 - Simplified diagrams
Simplified diagrams...........................................................................................105
Simplified diagrams for unit with chiller .......................................................105
VEX320L .....................................................................................................105
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VEX320R .................................................................................................... 106
VEX330CL................................................................................................... 107
VEX330CR...................................................................................................108
VEX330HL................................................................................................... 108
VEX330HR...................................................................................................109
VEX340L .....................................................................................................109
VEX340R .....................................................................................................110
VEX350L - VEX360L ...................................................................................110
VEX350R- VEX360R ...................................................................................111
VEX370L HCWi............................................................................................ 111
VEX370R HCWi........................................................................................... 111
VEX370L ..................................................................................................... 112
VEX370R .....................................................................................................112
CX340/350................................................................................................... 113
VEX310TR-VEX350TR................................................................................ 114
VEX310TL-VEX350TL................................................................................. 115
Appendix 2 - Temperature resistance table
Temperature resistance table DC95................................................................. 116
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Symbols and software version
Symbols used in these instructions
Prohibition symbol Failure to observe instructions marked with a prohibition symbol
may result in serious or fatal injury.
Danger symbol Failure to observe instructions marked with a danger symbol
may result in personal injury and/or damage to the unit.
Software version
Software version
These instructions are for use with the following version:
AHUC: 3.7.0.0
HMI: 3.7.0.0
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1. User mode
1.1 HMI panel
HMI panel - Human
Machine Interface
panel
mode
EXHAUSTO
OK
RD12248-01
Display
Browse menu or
set value
Activate menu/confirm key
Browse menu or
set value
If the front cover is extended, push it back in. The extra keys are for service tech-
nician use only.
EXHAUSTO
OK
RD12248-01
RD12248-01
EXHAUSTO
Esc
OK
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1.2 Display icons
Icon Description
Manual operation
Timer overridden until next changeover in the timer schedule
Timer, current indoor air quality level is comfort
Timer, current indoor air quality level is economy
Timer, current indoor air quality level is standby
Timer, VEX/CX has stopped
Timer, no changeover times defined in timer schedule
BMS-controlled operation
Externally-controlled operation
Set point for temperature shown in °C
Set point for ventilation shown as percentage: 0% = no ventilation OFF
= Unit is switched off - timer function cannot start up unit
BMS or Web server-controlled system overrides the OFF func-
tion. This means the system may start up even if set to OFF
The unit is running de-icing (De-ice)
Unit alarm. Contact the service technician who can help reset the
alarm. Icon is also shown in the technician menu
Warning. Contact the service technician who can help reset the warn-
ing. Icon is also shown in the technician menu
Temporarily
in service
Service display connected
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Icon Description
External start/stop disconnected. See Electrical Installation Guide for
further information
Summertime
Wintertime
No communication on the external BUS or communication between the
VEX/CX and HMI is disconnected
Fire!
Fire alarm. Closed circuit open and the pre-set fire alarm function acti-
vated
Loading Linux...
Startup: Web server accessing database. The icon is displayed until the
HMI panel is ready for use.
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2. Operation, access codes and selecting language
2.1 Using the HMI panel
Keys for user mode
or service mode
EXHAUSTO
OK
RD12248-01
B
C
D
A
EXHAUSTO
Esc
OK
RD12249-01
F
E
G
H
HMI panel ready for every-
day use
HMI panel ready for service mode
A Display
Bkey
Ckey
Dkey
Ekey
Fkey
Gkey
H Service key cover
2.1.1 Using keys within the menus
Keys Used for...
Navigation and setting values
Confirm key - selecting menu
Change between daily user and technician mode
Exiting a menu without making changes
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2.2 Access codes for technician and service menus
Step Action The display shows
1Press for full display brightness (if the display
is in hibernation mode).
Press
Password
0000
2Press and then press to set the val-
ue. Use to shift to the next digit of the
code.
● The code for technician mode is1111 (some
menus are hidden or read-only). EXHAUSTO
recommends this mode is used for normal
service tasks
● The code for specialist mode is 3142 (full ac-
cess to all menus).
NB: incorrect settings (wrong val-
ues) may have a negative impact on unit
operation in some menus
Password
1111
3Press to access main menu.
Main menu
Operating mode >
Operating readings >
Settings >
Alarm and info >
Time and weekly plan >
Versions >
Safety functions >
Service >
Exit technician menu >
Save settings >
Note
● Automatically logs out and returns to the user menu if no buttons are press-
ed in a 30-minute period.
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2.3 IMPORTANT when servicing
Do not open the service doors before the supply voltage has been disconnec-
ted at the isolation switch. The isolation switch is located on the
connection box, see illustration.
ON OFF
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Weekly plan It is important to set ventilation to OFF when the weekly plan is
active:
Set ventilation to OFF
NB - If the HMI panel shows 0% (VEX/CX
is inactive) and the unit is operating to a
weekly plan when servicing begins,
there is a risk that the program may
change via a timer operation and re-start
the VEX/CX unit.
21
0 °C %
29-05-2009 14:32
● Log onto technician menu, using password
1111
● Change to manual operation via menu 1
● Change back to user menu
● The icon for manual operation appears in
the right-hand corner of the menu
● Press the OK button twice
● Use the arrow keys to adjust ventilation to
0%
23 °C
%
29-05-2013 14:32
0
● Press OK
● OFF will now appear on the display next to
the ventilation icon
23 °C
29-05-2013 14:32
OFF
BMS unit or Web
server
If BMS or Web server controls are used, they could over-
ride the OFF function and the VEX/CX may start up irreg-
ularly. To disconnect the BMS or WEB server connec-
tion, you must remove the plug from the EXact2 main
board. Refer to the section on the terminal board in the
Electrical Installation Guide.
2.3.1 Auxiliary service panel
If the HMI panel is located far from the VEX/CX, it is recommended that an auxiliary
HMI panel be connected to the VEX/CX in the connection box.
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Example, Horizontal
VEX300
RD12844-01
Auxiliary service panel which
overrides the fixed HMI panel
Fixed HMI-panel
Service panel con-
nector - Exact2
Cable requirements The service panel cable can be ordered from EXHAUSTO (product number: HMI-
SERVICEC).
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Menu 3.2 - Selecting language
Unit >
General >
Configuration >
Accessories >
BMS >
Web server >
Backup/restore >
3 Settings
3.2 General
Date and time >
Language >
Reset settings >
Reload database >
English
Main menu
Operating mode >
Operating readings >
Settings >
Alarm and info >
Time and weekly plan >
Versions >
Safety functions >
Service >
Exit technician menu >
Save settings >
Step Action
1 Select "Settings"
2 Select "General"
3 Select the required language in line 2 "Language"
4 Return to the main menu and select yes in "Save settings"
Menu 3.2.1 - Setting date and time
Unit >
General >
Configuration >
Accessories >
BMS >
Web server >
Backup/restore >
3 Settings
3.2 General
Date and time >
Language >
Reset settings >
Reload database >
English
3.2.1 Date and time
Date > 22-02-2009
Day >
Time >
Wednesday
13:11
Step Action
1 Select "Date and time" to set these parameters in Menu 3.2.1
Menu 3.2 - Reset settings
Selecting "Reset settings" resets the user settings. See the menu guide for details of
which menus are affected.
NB This cannot be reversed and the VEX/CX will restart.
3.2 General
Date and time >
Language >
Reset settings >
Reload database >
English
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Menu 3.2 - Reload database
Selecting "Reset settings" resets the user settings. See the menu guide for details of
which menus are affected.
Database reloads
Initialising
Loading DB names
Menu 3.6 - Web server
Contact the network administrator for information on the correct IP address, etc. If
the admin password is lost, it can be reset to the factory setting. But note that this
cannot be reversed. See Exact Web server Instructions.
No
> 192.168.001.180
> 255.255.255.000
> 192.168.001.001
80
00:1F:79:00:00:D0
No
3.6 Web server
DHCP >
IP address
Subnet mask
Standard gateway
Port number >
MAC address
Reset password >
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Menu 3.7 - Backup/restore
It is recommended that a backup copy of the VEX/CX settings is made and saved on
a secure media. See the individual backup guidelines in the diagram:
+
Backup via the HMI panel
● Insert the USB plug in one of the web
server sockets
● Select menu Backup/restore
● It can take up to 20 seconds to estab-
lish the connection to the USB
The backup file can only be saved on a
USB plug. Once the file has been saved it is
not possible to change the file name or type.
The file is named automatically as in this ex-
ample: backup_20110918.file
Backup via web server
Follow the backup/restore instructions in the
web server guide. The backup file may be
saved on any medium (USB, PC etc.).
A backup file saved via the web server may
be renamed, but the file type cannot be
changed.
NB
If a backup file has been saved from the
web server and then renamed, it cannot be
retrieved (restored) via HMI until the name
has been changed back to the standard
form, see "Via HMI panel".
If it is necessary to make backup files for
several VEX/CX, it is recommended that
each file is saved on a separate USB flash
drive or that a folder is created for each
VEX/CX on which the backup files can be
saved.
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3. Starting up the unit for operation
The Modbus connectors must not be connected or removed while the
units are powered up. Both Modbus units must be switched off before
making changes, otherwise the units may be damaged.
During commissioning, it may be necessary to work with the control
system boxes open. Components in these boxes must only be
touched with electrically-insulated tools.
Before doing any work on motor controls or motor cables and termi-
nal boxes, the power supply must be switched off for at least five mi-
nutes to allow the capacitors to discharge.
Before commission-
ing begins
● Check that the supply voltage is connected
● Set the HMI panel to specialist mode. See section 2.2
3.1 Getting started
From the main menu, follow the steps below to start the commissioning process.
Commissioning
Step Action Menu
1 Configure any external accessories or units (heating or
cooling coils, chiller, sensors, etc.)
3.4
2 Select operating mode - Manual operation is the recom-
mended setting during commissioning.
1
3 Set/activate operation settings 3.1
4 Program weekly plan 5.2
5 Set safety function settings 7
6 Select operating mode - change to timer operation if re-
quired
1
The various menu items are explained later in this section.
REMEMBER - Save
settings
After changing menu settings it is always important to return to the main menu to
save your settings by selecting "Save settings" in menu 10 (select yes). If power is
disrupted before the settings are saved, the changes must be re-entered.
Main menu
Operating mode >
Operating readings >
Settings >
Alarm and info >
Time and weekly plan >
Versions >
Safety functions >
Service >
Exit technician menu >
Save settings >
10 Save settings
Save settings >
Last saved:
Date
Time
No
15.02.2011
15:30.22
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Start configuration
Step Action
1 Check that the correct configuration for the VEX/CX has been se-
lected at the factory via menu 3.3.
2 Check that all accessories have been configured in menu 3.4
3 If a CO2sensor is installed, check in Menu 3.1.2.1 "CO2compensa-
tion" whether CO2compensation has been activated.
4 If the humidity sensor (RH sensor) has been installed, check that
humidity compensation has been activated in Menu 3.1.2.2 Humid-
ity compensation.
5 Go to Menu 4.5. Current list, and check whether any units from the
configuration menu are reporting errors. Alarm icon is shown in the
menu bar
6 If a unit is reporting an error but has been correctly configured,
check the installation
Menu 3.3 - Configuration
Type >
Size >
Orientation
3.3 Configuration
300
40
H
Line in Menu 3.3 Factory-set and should not be changed.
Type x
Size x
Orientation x
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Menu 3.4 - Accessories
Ice-detect. >
De-icing method >
Heating coil >
Cooling unit >
Power step HCE >
Filter detect. >
PIR >
TS >
CO2 >
RH >
Dining solution
3.4 Accessories
Pressure
0
MHCE
None
4
Timer
PIR1
TS Room
MIOCO2
None
No
Line in Menu 3.4 Factory-set and
should not be
changed.
Remarks:
Ice detection method x Should only be changed when
ice-detection sensors are ret-
rofitted.
Options:
● Pressure
● Tice
De-icing method Select de-icing method (meth-
od no.) for de-icing of heat ex-
changer. See section on de-
icing on following pages,
where the VEXCX type and
associated de-icing methods
are described.
Heating coil Options:
● IHCW (set at the factory
for the the EXact2 main
board, if the VEX/CX was
purchased with HCW)
● MHCE (Electric heating
coil)
● MHCW (Water heating
coil)
● MCOCW (Cooling-heating
coil)
● None
Cooling unit Options:
● CH
● CU (cooling unit from EX-
HAUSTO)
● CCW (cold water coil)
● MXCU (external cooling
unit)
● MXHP (External cooling/
heating pump units)
● None
Power step HCE This menu item is only active if
MHCE is selected. (Can only
be active for VEX340-50-60/
CX340-50).
Filter detection x Should only be changed when
sensors for detecting filter soil-
ing are retrofitted. Options:
● Pressure
● Hours
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