Exhausto EXact2 VEX240 series Installation guide

EXact2 control system
Basic instructions for VEX240-250-260-270-280 series
EXHAUSTO
OK
EXHAUSTO
Esc
OK
Original instructions
3005167-2022-02-02 EXact2 VEX240-280
EXHAUSTO A/S
Odensevej 76
5550 Langeskov, Denmark
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
%
29-05-2009 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 >
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 >
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
15.02.2011
15:30.22
Symbols and software version
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Symbols used in these instructions.................................................................... 5
Software version.................................................................................................... 5
Software version ............................................................................................. 5
1. User mode
1.1. HMI panel................................................................................................................ 6
1.2. Display icons..........................................................................................................7
2. Operation, access codes and selection of language
2.1. Using the HMI panel...............................................................................................9
2.1.1. Using keys within the menus............................................................................9
2.2. Access codes for technician and service menus............................................. 10
2.3. IMPORTANT when servicing............................................................................... 11
2.3.1. Auxiliary service panel................................................................................... 12
Menu 3.2 - Selecting language............................................................................13
Menu 3.2.1 - Setting date and time..................................................................... 13
Menu 3.2 - Reset settings....................................................................................13
Menu 3.2 - Reload database................................................................................14
Menu 3.6 - Web server......................................................................................... 14
Menu 3.7 - Backup/restore.................................................................................. 15
3. Starting up the unit for operation
3.1. Getting started..................................................................................................... 16
Start configuration..........................................................................................17
Menu 3.4 - Accessories..................................................................................18
Menu 3.4 Connecting heating and cooling units ........................................... 19
Menu 3.5 BMS.......................................................................................................20
Menu 3.5 - BMS............................................................................................. 20
3.2. What is an indoor air quality level?....................................................................20
Menu 1 - Selecting operating mode................................................................... 21
Menu 3.1.1 - Operating settings - Air regulation............................................... 22
Menu 3.1.1 - Operating settings Balance.......................................................25
Menu 3.1.1.5 Regulators ...............................................................................26
Menus 3.1.1.1.1 to 3.1.1.1.4 Setting the selected indoor air quality levels..... 26
Menu 3.1.1.1.x - Air set point ........................................................................ 26
Menu 3.1.1.1.x - Temperature set point ........................................................ 26
Menu 3.1.1.1.x - Absolute / Relative temperature .........................................27
Menu 3.1.1.1.x - Cooling relative start .......................................................... 27
Menu 3.1.1.1.x - Heating relative start .......................................................... 27
Menu 3.1.1.1.x - Cooling absolute start ........................................................ 28
Menu 3.1.1.1.x - Heating absolute start ........................................................ 28
Generally on temperature regulation .............................................................28
Menu 3.1.8 - Temperature limits.....................................................................28
Menu 3.1.1.1.x - Supply air regulation, absolute ...........................................30
Menu 3.1.1.1.x - Room temperature regulation, absolute .............................31
Menu 3.1.1.1.x - Supply air regulation, relative .............................................32
Menu 3.1.1.1.x - Room temperature regulation, relative ...............................34
Menu 3.1.1 - Operation settings - Temperature regulation.............................. 35
Compensation...................................................................................................... 36
Menu 3.1.2 - Air compensation........................................................................... 36
Menu 3.1.2.1 - CO2 compensation ............................................................... 37
Menu 3.1.2.2 - Humidity compensation of airflow ......................................... 38
Menu 3.1.2.3 - Airflow reduction ................................................................... 38
Menu 3.1.2.4 - Outdoor compensation of airflow .......................................... 39
Menu 3.1.3 - Temperature compensation.......................................................... 40
Outdoor air temperature compensation (menu 3.1.2.1) ................................40
Summertime compensation (menu 3.1.2.2) ..................................................41
Menu 3.1.4 + Menu 8.1 - Filter (monitoring in case of pressure) .................. 41
Menu 3.1.4 + Menu 8.1 - Filter (monitoring with hour counter) ..................... 42
Menu 3.1.5 - Night-time cooling .................................................................... 42
Menu 3.1.6 - Cold recovery............................................................................45
Menu 3.1.7 - Fan limits...................................................................................45
Menu 3.1.8 - Temperature limits for supply air and room...............................45
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Room temperature limits................................................................................46
Menu 3.1.9 - MXHP settings.......................................................................... 46
Menu 3.1.10 - MCOCW settings.................................................................... 46
Menu 5 - Time and weekly plan.......................................................................... 47
Menu 5.1 - Date and time...............................................................................47
Menu 5.2 - Weekly plan ................................................................................ 47
Menu 7 - Safety functions................................................................................... 48
Menu 7.1 - Fire alarm.....................................................................................48
Menu 7.2 - Frost protection of HCW ............................................................. 49
4. Operation
Menu 2 - Operating readings.............................................................................. 51
Menu 2.1 - Air temperatures ......................................................................... 51
Menu 2.1.1 - Set points for regulators ...........................................................52
Menu 2.2 - Airflows ....................................................................................... 52
Menu 2.3 - Motor controller parameters (MC parameters) ............................52
Menu 2.4 - Temperature regulating units ...................................................... 53
Menu 2.5 - Pressure.......................................................................................53
Menu 2.6 - Heating coil ................................................................................. 53
Menu 2.7 - CH cooling unit.............................................................................54
Menu 2.8 - CCW cold water coil ....................................................................54
Menu 2.9 - CU cooling unit.............................................................................54
Menu 2.10 - MXCU external cooling unit....................................................... 54
Menu 2.11 - External cooling/heating pump unit MXHP.................................54
Menu 2.12 - Hour meters............................................................................... 55
Menu 2.13 - CO2/RH sensors (if mounted)....................................................55
Menu 6 - Versions................................................................................................ 55
Menu 8 - Service...................................................................................................56
Auxiliary service panel................................................................................... 57
Menu 8.2 - VDI 6022......................................................................................58
Menu 8.3 - Forced start .................................................................................58
Menu 8.3.1 Fans............................................................................................ 58
Menu 8.3.2 Recovery.....................................................................................59
Menu 8.3.3 Heating unit.................................................................................59
Menu 8.3.4 Cooling unit................................................................................. 59
Menu 8.3.5 Dampers and relays....................................................................60
Menu 8.4 - Calibrating MPT........................................................................... 60
5. Alarms
5.1. Alarms and info (Menu 4).................................................................................... 61
5.2. Reset alarms.........................................................................................................61
5.3. Alarm display – causes of errors....................................................................... 61
5.4. List of alarms........................................................................................................63
Appendix 1 - Simplified diagrams
Simplified diagrams...........................................................................................101
Simplified diagrams for unit with chiller .......................................................101
VEX240-250-260-270L fan placement 1 .....................................................101
VEX240-250-260-270L fan location 1 .........................................................101
VEX240-250-260-270L fan placement 2 .....................................................102
VEX240-250-260-270R fan placement 2 .................................................... 102
Appendix 2 - Temperature resistance table
Temperature resistance table DC95................................................................. 103
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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
This manual applies from the following version:
AHUC: 3.11.1.0
HMI: 3.11.0.0
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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
Setpoint for temperature shown in °C
Setpoint for ventilation shown as percentage: 0% = no ventilation OFF
= Unit is switched off - timer operation 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 selection of 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 positioned on
the left side of the connection box on top of the unit.
ON OFF
Weekly plan It is important to set ventilation to OFF when the weekly plan is
active:
Set ventilation to OFF
Note - If the HMI panel shows 0%
(VEX/CX is inactive) and the unit is oper-
ating to a weekly plan when servicing
begins, there is a risk that the program
may be changed by timer operation and
re-start the VEX unit.
21
0 °C %
29-05-2009 14:32
● Log on to technician menu, using pass-
word 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
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BMS unit or Web
server
If the VEX/CX is controlled via a BMS or Web server,
these controls could override the OFF function and the
VEX/CX may start up irregularly. To disconnect the BMS
or WEB server connection, 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.
RD12627-02
Auxiliary service panel which
overrides the fixed HMI panel
Fixed HMI-panel
Service panel con-
nector - Exact2
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Cable requirements The service panel cable can be ordered from EXHAUSTO (product number: HMI-
SERVICEC).
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.
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Note This cannot be undone and the VEX/CX restarts.
3.2 General
Date and time >
Language >
Reset settings >
Reload database >
English
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 in
a secure location. 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 3.7 Backup/restore
● It can take up to 20 seconds before the
connection to the USB is established
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.
Note:
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 stick,
or to create one folder per VEX /CX in which
the backup files are 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 the CO2 sensor has been mounted, check in menu 3.1.2.1 "CO2
compensation", whether CO2 compensation 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 "Hu-
midity 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.
3.3 Configuration
Type >
Size >
Fan positioning >
Direction >
Rotor type >
Cleaning zone >
200
1
Orientation H
Right
Cond.
None
x50
Line in menu 3.3 Factory-set and
should not be
changed.
Remarks:
Type x
Size x
Fan location x
Direction Adjustable. See section se-
lecting Left/Right
Rotor type x
Cleaning zone 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
AUX OUT setting >
ALC >
3.4 Accessories
Pressure
0
MHCE
None
4
Timer
PIR1
TS Room
MIOCO2
None
No
1
Line in menu 3.4 Factory-set and
should not be
changed.
Remarks:
Ice detection method 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 VEX type and asso-
ciated de-icing methods are
described.
Heating unit Options:
● IHCW (set at the factory
for the the EXact2 main
board, if the VEX was
purchased with HCW)
● MHCE (Electric heating
coil)
● MHCW (Water heating
coil),
● None
Cooling unit Options:
● CH
● CU (cooling unit from EX-
HAUSTO)
● CCW (cold water coil)
● MXCU (external cooling
unit)
● None
Filter detection x Should only be changed when
sensors for detecting filter soil-
ing are retrofitted. Options:
● Pressure
● Hours
Power rating step
HCE
This menu item is only active if
MHCE is selected (Can only
be active for VEX340-50-60).
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Line in menu 3.4 Factory-set and
should not be
changed.
Remarks:
PIR Activating PIR sensor. Op-
tions:
● Both (Both MIOPIR and
PIRB connected)
● PIR2 (PIRB connected)
● PIR1 (MIOPIR connected)
● None
When the sensor(s) is/are acti-
vated by movement in the
room, the VEX will be overrid-
den and set to comfort level.
Comfort level will be main-
tained for the time set on the
rear of the sensor (PIRB), af-
ter which the VEX will return to
the previous indoor climate
level.
Note: The time interval for
MIOPIR is fixed at 10 minutes
and cannot be changed).
TS Activation of external tempera-
ture sensor and selection of
type. Options:
● TS DUCT
● TS ROOM
● None
CO2 Activation of CO2 sensor Op-
tions:
● BMS
● CO2B (sensor connected
to AI SPARE)
● MIOCO2
● None
RH Activation of RH sensor. Op-
tions:
● BMS
● RHB (sensor connected
to AI SPARE)
● MIORH
● None
Dining solution
ALC x ALC menu: This is where ALC
is activated and deactivated.
Other settings should not be
changed.
Menu 3.4 Connecting heating and cooling units
Location A heating coil and a cooling unit can be connected to the VEX. The example be-
low (VEX200) shows the position of the coils in relation to the VEX unit.
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RD12313-02
Heating coil - Cooling unit
Menu 3.5 BMS
Menu 3.5 - BMS
BMS >
Configuration >
3.5 BMS
None
Line in Menu 3.5 Comments
BMS Activating override control system BMS Op-
tions:
● None
● Modbus
● MTCP
● MLON
● BACnet MS
● BACnetIP
Configuration Configuration of Modbus and BACnet MSTP.
BMS configuration See detailed description in the instructions for the protocols.
3.2 What is an indoor air quality level?
Example
3.1.1.1.1 Comfort
Air setpoint >
Air setpoint,cool >
Temp. setpoint >
Abs. /Rel. >
Cool rel. start >
Cool abs. start >
Heat rel. start >
Heat abs. start >
60
80
21,0
Relativ
1,0
---
-1,0
---
%
%
°c
K
K
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