Exhausto EXact2 HMI2-350-TOUCH Installation guide
EXact2 HMI2-350-TOUCH Control
System
Basic instructions for VEX308
Original instructions
3006401-2022-05-04
EXHAUSTO A/S
Odensevej 76
5550 Langeskov, Denmark
Tel.: +45 65 66 12 34
Fax: +45 65 66 11 10
www.exhausto.dk
Symbols and software version
Symbols used in these instructions.................................................................... 4
Software version.................................................................................................... 4
Software version ............................................................................................. 4
1. Menu structure
Overview of menus and user levels..................................................................... 5
2. User mode
Operation................................................................................................................ 6
Use of control icons in the menus....................................................................6
Overview of HMI icons...........................................................................................7
3. Technician and service levels
3.1. Access codes for technician and service menus............................................... 9
Menu 3.2 - Selecting language............................................................................10
Menu 3.2.1 - Setting date and time..................................................................... 10
Menu 3.2 - Reset settings....................................................................................10
Menu 3.2 - Reload database................................................................................ 11
Menu 3.6 - Web server......................................................................................... 11
Menu 3.7 - Backup/restore.................................................................................. 12
3.2. IMPORTANT when servicing...............................................................................12
3.2.1. Connect service panel....................................................................................14
4. Starting up the unit for operation
4.1. Getting started..................................................................................................... 15
4.1.1. Menu 3.3 - VEX configuration........................................................................ 15
Menu 3.4 - Accessories..................................................................................16
4.2. De-icing method ..................................................................................................17
4.2.1. Bypass de-icing - example.............................................................................17
4.3. Temperature controlled frost protection -- choice of method......................... 18
Menu 3.5 - BMS............................................................................................. 18
Menu 3.5 - BMS............................................................................................. 19
4.4. What is an indoor air quality level?....................................................................19
Operation with CO2B, PIRB and RHB .......................................................... 20
Menu 1 - Selecting operating mode................................................................... 20
Menu 3.1.1 - Operating settings - Air regulation............................................... 21
Menu 3.1.1 - Operating settings Balance.......................................................21
Menu 3.1.1.5 Regulators ...............................................................................22
Menus 3.1.1.1.1 to 3.1.1.1.4 Configuring the selected indoor air quality levels
......................................................................................................................................23
Menu 3.1.1.1.x - Air set point ........................................................................ 23
Menu 3.1.1.1.x - Temperature set point ........................................................ 23
Menu 3.1.1.1.x - Absolute / Relative temperature .........................................23
Menu 3.1.1.1.x - Cooling relative start .......................................................... 24
Menu 3.1.1.1.x - Heating relative start .......................................................... 24
Menu 3.1.1.1.x - Cooling absolute start ........................................................ 24
Menu 3.1.1.1.x - Heating absolute start ........................................................ 25
Menu 3.1.1 - Operation settings - Temperature regulation.............................. 25
Compensation...................................................................................................... 26
Menu 3.1.2 - Air compensation........................................................................... 26
Menu 3.1.2.1 - CO2 compensation ............................................................... 26
Menu 3.1.2.2 - Humidity compensation of airflow ......................................... 27
Menu 3.1.2.3 - Airflow reduction ................................................................... 28
Menu 3.1.2.4 - Outdoor compensation of airflow .......................................... 29
Menu 3.1.3 - Temperature compensation.......................................................... 30
Outdoor air temperature compensation (menu 3.1.2.1) ................................30
Summertime compensation (menu 3.1.2.2) ..................................................31
Menu 3.1.4 + Menu 8.1 - Filter (monitoring with hour counter) ..................... 31
Menu 3.1.5 - Night-time cooling .................................................................... 32
Menu 3.1.6 - Cold recovery............................................................................34
Menu 3.1.7 - Fan limits...................................................................................34
Menu 3.1.8 - Temperature limits for supply air and room...............................34
Room temperature limits................................................................................35
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Menu 5 - Time and weekly plan.......................................................................... 35
Menu 5.1 - Date and time...............................................................................35
Menu 5.2 - Weekly plan ................................................................................ 36
Menu 7 - Safety functions................................................................................... 37
Menu 7.1 - Fire alarm.....................................................................................37
Menu 7.2 - Frost protection of HCW ............................................................. 38
Menu 7.3 - Frost protection heat exchanger ................................................. 39
5. Operation
Menu 2 - Operating readings.............................................................................. 41
Menu 2.1 - Air temperatures ......................................................................... 41
Menu 2.1.1 - Set points for regulators ...........................................................42
Menu 2.3 - Motor controller parameters (MC parameters) ............................42
Menu 2.4 - Temperature regulating units ...................................................... 42
Menu 2.6 - Heating unit .................................................................................42
Menu 2.8 - CCW cold water coil ....................................................................43
Menu 2.9 - CU cooling unit.............................................................................43
Menu 2.10 - MXCU external cooling unit....................................................... 43
Menu 2.11 - CO2/RH sensors (if mounted)....................................................44
Menu 6 - Versions................................................................................................ 44
Menu 8 - Service...................................................................................................44
Connect service panel....................................................................................46
Menu 8.2 - VDI 6022 (not applicable)............................................................ 47
Menu 8.3 - Forced start .................................................................................47
Menu 8.3.1 Fans............................................................................................ 47
Menu 8.3.3 Heating unit.................................................................................47
Menu 8.3.3 Cooling unit (not applicable)........................................................47
Menu 8.3.4 Dampers and relays....................................................................48
6. Alarms
6.1. Alarms and info (Menu 4).................................................................................... 49
6.2. Reset alarms.........................................................................................................49
6.3. Alarm display – causes of errors....................................................................... 50
6.4. List of alarms........................................................................................................51
Appendix 1 - Simplified diagrams
Simplified diagrams.............................................................................................68
VEX308 with water heating coil HCW ...........................................................68
VEX308 with electric heating coil HCE ......................................................... 69
Appendix 2 - Temperature resistance table
Temperature resistance table DC95................................................................... 70
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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: 4.1.0.0
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1. Menu structure
Overview of menus and user levels
User menu: Technician and service menu:
23°C
60%
Select menu by using
arrow up and
arrow down keys.
Activate by pressing
on menu.
Press return arrow
to switch between
the user and
technician menu,
or to exit the menu.
Main menu
Operating mode >
Operating readings >
Settings >
Alarm and info >
Time and weekly plan >
Versions >
Safety functions >
Service >
Save settings >
1 Operating mode
Operation > Manual
2 Operating readings
Air temperature >
Airflows >
MC parameters >
Temp. reg. units >
Pressure >
Heating coil >
CH cooling unit >
CCW
CU cooling unit >
MXCU
MXHP
Timers >
CO2/RH sensorer >
3 Settings
Unit >
General >
Configuration >
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
9 Save settings
Save settings >
Last saved:
Date
Time
No
xx.xx.xxxx
xx:xx.xx
Ventilation
60
Set temperature
23°C
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2. User mode
Operation
Use of control icons in the menus
HMI - Human Machine Interface panel
Control icon Used for...
Menu icon
Navigation arrows up and down as well as setting val-
ues.
Approve icon for selection.
Undo icon.
Switch between daily user menu and technician/serv-
ice menu.
Exit a menu without making changes
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Overview of HMI 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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3. Technician and service levels
3.1 Access codes for technician and service menus
Step Action The display shows
1 If the display is in stand-by: Press the
display to activate full light.
Press the menu icon
2 Press the number in the code row to acti-
vate and select the number via the up/
down arrows
When the whole number code has been
selected, approve with
● The code for technician mode is1111
(some menus are hidden or read-on-
ly). EXHAUSTO recommends this
mode be used for normal service
tasks
● The code for the specialist level is
3142 (full access to all menus).
NB: incorrect settings
(wrong values) may have a nega-
tive impact on unit operation in
some menus
0
0 0 00
Password
1
1 1 11
Password
3
Press the up/down arrow
keys to find and select the desired func-
tion in the main menu.
Main menu
Operating mode
Operating readings
Settings
NB:
● Automatically logs out and returns to the user menu if no buttons are press-
ed in a five-minute period
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Menu 3.2 - Selecting language
The HMI is factory set to English – another language can be selected by:
Step Action
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 >
Save settings >
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
Step Action
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
1 Select"Settings"
2 Select "General"
3 Select "Date and time" to set these parameters in Menu 3.2.1
4 Return to the main menu and select yes in "Save settings"
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 undone and the VEX/CX restarts.
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