Genvex Optima 250 DESIGN User manual

Version V1.02 - 0209
UK
User ManUal
Optima 250 DESIGN

2
Optima 250
Table of contents
Page
1. Control panel ...........................................................3
2. Installation................................................................4
2.1 Installation of the control panel................................4
2.2 Mounting..................................................................4
3. Start-up.....................................................................5
4. Operating..................................................................6
4.1 Operating and changing of data in the
operating menu........................................................6
4.2 Daily operating options............................................7
4.3 Main menu...............................................................8
4.4 Schedule for week menu.......................................15
4.5 Schedule for set-points..........................................16
5. Function .................................................................17
5.1 Controlling Optima 250..........................................17
5.2 Extra capacitet.......................................................17
5.3 Reliability ...............................................................17
6. Connection to PC ..................................................18
6.1 Function description of data logger .......................18
6.2 Direct data logging.................................................20
7. Maintenance...........................................................21
7.1 Unit ........................................................................21
7.2 Alarms....................................................................21
7.3 Dismantling/decommissioning the device..............22
8. Troubleshooting ....................................................23
8.1 Safety thermostat for electric heat surface............23
8.2 The device is not running ..................................... 23
8.3 Error on air side.....................................................23
Technical changes may have occurred after
publication of this document

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Optima 250
1. Control panel
The control panel must be mounted on a wall that is
centrally located in the home.
Since the control panel functions as a room thermostat, it
is important to observe the following:
• Donotexposetodirectsunlight,
• Donotplaceonanouterwall,
• Donotbuilditintothewall,
• Donotplaceoveraheatsource.
A lamp close to the control panel can affect the light
sensor so that it will not regulate the light intensity as
intended.
There are 7 buttons in the ring on the front of the control
panel that are used to operate the panel. The function of
the buttons changes depending on the menu selected.
(More information is available under Operating)
There is an infrared movement sensor located under the
glass screen. You can use this to bring up the menu for
daily control options simply by moving your hand past the
control panel.
(This function can be turned off: See under Main menu/
Display/Menu item 5)
The following are located on the bottom of the control
panel:
1: SD card
2: Room sensor
3: Light sensor
4: Mini USB- socket for connection to computer
1: The SD-card, which can be removed, contains all
the control models and versions that make the control
panel compatible with older versions. The SD-card also
contains all the languages, menus, help texts, symbols
and collected data logs. During the start-up procedure,
the current versions are installed on the control panel
so that the controls can function without the SD-card.
However, the help texts will not appear on the screen and
the data logs will not be saved.
4: In order for a computer to read the data logs, it must
have the Genvex data logger program installed.

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Optima 250
2. Installation
2.1 Installation of the control panel
The control panel is intended for hanging on a wall. The
control panel must be positioned in the home at a height
ofabout1.5metresfromtheoor.Thecontrolpanelmust
not be countersunk into the wall, since the panel also
functions as a room thermostat. It is also equipped with
a light sensor. The control panel must not be exposed to
direct sunlight. It must not be mounted on an outer wall or
the room sensor will not be able to measure the correct
room temperature and the light sensor will not regulate
the light in the display correctly. It is also recommended
that you do not place a lamp underneath the control panel
as this may also affect the light sensor.
2.2 Mounting
Find the place where the control panel is to be mounted,
marktheplacesfortheholesandscrewthettingonto
the wall.
Hold the wall frame against the wall and mark the holes
for mounting the frame. Drilling of holes, the size of the
holes and the corresponding screws for mounting will all
depend on the wall material.
Placethecontrolpaneldownintothettingsandtipitin
against the wall.
At the bottom of the control panel there is access to:
A: Terminal board. Connection to main circuit board
B: SD card
C: Room sensor
D: Light sensor
E: USB port
Fit a low-voltage cable 4 x 0.25 mm² between the unit
and the control panel. The maximum cable length is
50 m. The voltage drop will be too great if the cable
is over 50 m long and this may produce operational
disturbances.
Thewallxturecanbemountedintwoways:
Screwthextureontoasmoothwallandleadthe1.
cable up from below so that it is visible.
Fit a masonry junction box or a countersunk box to2.
e.g. a plaster wall. If another type of box is preferred,
to must be ensured that the screw hole match.
Connect the low-voltage cable to the terminal box. Check
that the cable is connected to the same numbers at both
ends. (Between the control panel and the main circuit
board in the unit)
Clipthecontrolpanelontothewallxturebymoving
itdownwardsalittlebitoutatthebottomandnishby
pressingitinatthebottomsothatitisushwiththewall.
To dismantle, pull the control panel out slightly at the
bottom and lift it up.
Pos. Amount Product no. Description
1 1 069014 House for panel
2 1 069015 Front for panel
3 1 069016 Plate for display
4 1 069012 Wallttings
5 1 069017 Glas for display

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Optima 250
3. Start-up
Thersttimethedeviceisstarted,thecontrolpanel
display will show: “Choose language”.
Click “Next” to switch between Danish, English, German
and French.
Press “Enter” when the desired language is shown in the
display.
The control panel will now read the current program
version in the selected language according to the IC
circuit’s version on the main circuit board in the device.
The display will now show:
• Updatingmodel
• Wait1.5minutes(Ittakesapproximately
1.5 minutes to read the
current version)
• Languageload (91)
• Language OK
• Menuload (84)
• Menu  OK
• Iconload (369)
• Menu  OK
• Resettodefault
• Restarting……..
• Optima250
Then the display will then change to:
• ThesymbolBookmark
• Optima250
• Versionnumber
D (Display): 1.0
C (Controller): 3.0
Finally, the display changes to daily operation and the
device is now in operation with the default settings.
The menu items can now be set as desired for the house
in question and will thereby achieve the most optimal and
most effective utilisation and operation of the device.

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Optima 250
4. Operating
Optima 250
All Genvex ventilation units are of type GE/S Energy,
GEU or ST for houses and are delivered with Optima 250
control systems, which have default settings such that the
unit can be put into operation. The default setting is only
a basic setting that should be changed to the operating
wishes and requirements of the house in question and
will thereby achieve optimal utilisation and operation of
the device.
After the device has been started, the control panel
will be in stand-by and will display one of the screen
savers (can be changed in the main menu under the
item ‘display’). Pass your hand over the control panel to
bring up the symbols on the screen that show the daily
operating options.
4.1 Operating and changing data in
the operating menu
The display normally shows the screen with symbols for
daily operations, where the following buttons can be seen
in connection with daily operation.
Speed (1)
Use this function to set the fan speed to levels 0-1-2-3-4.
The button beside the speed symbol changes between
the 4 speeds. The installation can also be stopped by
holding down the button for 3-4 seconds.
Extended operation (2)
Use this function to set the timer to forced operation
from 0 to 9 hours Use the button next to the symbol for
extended operation to change from 0 to 9 hours. If the
timer is set to 0, speeds 3 and 4 will run until the speed is
changed manually. If the timer is set for between 1 and 9
hours, speeds 3 and 4 will automatically be linked back to
speed 2 after the number of hours the symbol was set at.
After-heat (3)
Use this function to turn on or off the supplementary after-
heat.
Use the button beside the after-heat symbol to change
between + or ÷. If the symbol is set at + and the device
is equipped with an after-heat surface, the after-heat will
commence as required. If, on the other hand, the symbol
is set to ÷, the after-heat will not commence, even if it is
required.
Temperature (7)
Use this function to set the room temperature.
Use the button next to the temperature symbol to set
the required temperature from 10-30°C. The current
temperature will be displayed at the centre of the screen.
Information (6)
Use this function to get a good overview of the device’s
current operating condition, e.g. temperature, fan setting,
relay status/functions, alarm, timer etc.
Use the button beside the info symbol to read the
installation’s operating condition (more information can be
found in the main menu section under the info operation
item).
Filter (5)
Usethisfunctiontoun-setthelteralarm.Thebutton
besidetheltersymbolun-setsthealarmforlter
change.Toun-setthelteralarm,changethelters
holddownthebuttonwiththeltersymboluntilthe
exclamation mark in the symbol disappears.
Main menu (4)
Use this function to enter the main menu and access the
sub-items date, calendar, user menu, display, information
menu and service menu.
Press help to see a guide for the item that is marked.
Press the exit to return to the previous display screen.
The setting will not be saved when you press here. Use
the arrow buttons to navigate in the menus. The two
arrow buttons will change to plus and minus when you
change the setting.
Use the Enter button to proceed through the menus. If a
menuitemhasbeenchanged,nishbypressingEnter
and the change will be saved.

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Optima 250
4.2 Daily operation options
The menu item with the Display symbol
This menu is divided into 12 menu items
–01 Language.
Use this to choose between Danish, English,
German or French text in the display.
-02 Program info.
 ThismenushowswhichOptimaisttedonthe
device and its version number:
Example: Optima 250 DK D: 1.0 C: 3.0
D represents the control panel’s version number.
C represents the controller version number, i.e.
the program version.
-03 Screen saver.
The following settings can be selected here:
0: Screen saver off
1: Screen saver off, but with light dimming.
2: Room temperature + light dimming
3: Clock + light dimming
4: Clock and Room temperature + light
dimming,
5: Black screen + light dimming
-04 Pause time.
Use this to set how long it should take from
when none of the symbols on the display for
daily operation have been used until it
automatically reverts to the screen saver. From
daily menu to screen saver variable = 1 to 10
minutes. The other automatic return
connections cannot be adjusted. If no button
has been pressed within the time intervals
indicated below, it will automatically revert to
the previous display:
Change in menu item back to menu item = 30•
seconds.
From menu item to main menu = 2 minutes•
From menu item to daily menu = 2 minutes•
-05 Auto wake-up.
It is possible to de-activate the auto wake-up
function, where you can change from the screen
saver to the display with the symbols for the daily
control options by passing your hand over the
control panel. If the function is set to OFF, press
any button to display the daily operating options.
-06 Auto lightness.
If this menu item is set to OFF, the brightness
level for the screen saver will remain at the
brightness level that was entered in item 09 and
through operation with the entered value in item
07. If the menu item is set to ON, the brightness
level of the screen saver will automatically
regulate between the entered values in items 09
and 10 and, when operating, between the
entered values in items 07 and 08. Both will
depend on how dark the room is.
-07 Lightness day.
Use this to enter the maximum brightness for the
control panel when the room is fully lit.
-08 Lightness night.
Use this to enter the minimum brightness
level for the control panel when the room is in
complete darkness.
-09 Lightness day screensaver.
Use this to enter the maximum brightness for the
screen saver when the room is fully lit.
-10 Lightness night screensaver.
Use this to enter the minimum brightness level
for the screensaver when the room is in complete
darkness.
-11 Default reset.
 Ifthesetpointsareconguredsothatthe
installation no longer functions as expected and
the cause cannot be found, it is possible to
choose between 2 different options to reset the
menu items to the default settings.
Press 1 to change all menu items to the default•
settings except for the menu items for Speed
(Level), Filter timer, Calendar and Defrost
temperatures.
Press 2 to change all menu items to the default•
settings.
Note: Before performing a reset, ensure that the
currently entered values are noted in a table for
the set items.
-12 Safety menu.
It is possible to prevent access to selected main
menu items so that they cannot be changed
 withoutapassword,whichisa4-digitgure.For
 thersttime,press0fourtimesandthenEnter.
Items 13 to 18 will open. Select the password
under point 18, which will be the password to
access items 13 to 18.
-13 Date and time.
If this item is set to ON, it will not be possible
to enter the menu for Date and Time without
using the selected access code in item 18.
-14 Calendar.
If this item is set to ON, it will not be possible to
enter the menu for Calendar without using the

8
Optima 250
selected access code in item 18.
-15 User menu.
If this item is set to ON, it will not be possible to
enter the menu for User without using the
selected access code in item 18.
-16 Display.
If this item is set to ON, it will not be possible to
enter the menu for Display without using the
selected access code in item 18.
-17 Service menu.
If this item is set to ON, it will not be possible to
enter the menu for Service without using the
selected access code in item 18.
-18 Password.
Enter the selected password here and use this
also in item 12 to enter items 13 to 18. If
you forget your password, contact Genvex
Service department for assistance. To change
the password, enter a new password in this item
and press enter. All passwords will now be
changed to the new password.
4.3 Main menu
There is a book icon at the bottom centre of the daily
control options. This gives access to the main menu.
Press this button to enter the main menu, which is
divided into 6 menus:
• Dateandtime
• Calendar
• Usermenu
• Display
• Infooperation
• Servicemenu
The control buttons change function. Pressing on
“Arrow down” or “Arrow up” will change the symbol to a
horizontal arrow that shows the current location. Press
“Enter” to access to the current menu’s sub-items. Press
“Arrow down” or “Arrow up” again to select the required
menu item. When the horizontal arrow is next to a
menu point, the 2 lines will change place, the font size
will change and the text “Set” will be added. Pressing
“Enter” next to the selected menu item will change the
background of the item to grey. Use the “+” and “-”
buttons to change the current value. Press “Enter” again
to save the changed setting. If you do not wish to make
any changes, it is possible to go back out of the menus
by pressing the button “Exit”. Pressing “Help” will bring
up a short help text on the screen that explains the menu
item. Press one of the buttons to exit the help program.
If no button is pressed within a short period of time, the
control system will automatically exit the programs.
Date and time
Usethisfunctiontocongureandchangethedate.
This menu is divided into 6 menu items:
01 Hours.•
 Enterthecurrenthourgurehere.Changing
between “summer” and “winter” time manually
sets the time one hour back or forward.
02 Minutes.•
Enter the current of minute post the hour here.
03 Weekday.•
Enter the current weekday here.
Monday = 1,
Tuesday = 2,
Wednesday = 3,
Thursday = 4,
Friday = 5,
Saturday = 6,
Sunday = 7
04 Date.•
The current can be entered here.
05 Month.•
The current month can be entered here.
January = 1,
February = 2,
March = 3,
April = 4,

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Optima 250
May = 5,
June = 6,
July = 7,
August = 8,
September = 9,
October = 10,
November = 11,
December = 12.
06 Year. The current year can be entered here.•
Calendar
Usethisfunctiontocongureandchangeeachday
settingfortheweek.Eachdaycanbeconguredtorun
with different ventilation speeds as required. It is possible
tocopythecongurationfromonedaytoanother.It
is possible to press ON or OFF here, i.e. if there is
a time when there are no people in the building, the
daily settings can be turned off and the device will run
according to the manual settings, e.g. level 1.
This menu is divided into 9 menu items:
• 01
Use this to choose between controlling the
device manually or control the speed (air
exchange) and temperature automatically
 accordingtoaxeddayprogram.Ifthe
menu item is set to OFF, the device will be
controlled manually according to the speed
and temperature selected. If the menu item is
set to ON, the device will controlled according
to the day programs entered in the menu
items 02 to 08.
• 02
Monday. Up to 10 change times can be
entered for one day. The times can be entered
in random sequence. Enter the hours in the
 rstcolumn.Entertheminutesinthesecond
column. Enter the speed in the third column. Use
the fourth column to enter the temperature
difference to which the temperature should be
lowered. Example:
If the temperature is set to 21ºC and you then
enter – 2.0º, the device will aim at 19ºC. If the
speed has been changed manually on the
button under daily operation, the program will
revert to the day program at the next change-
time point is passed.
Examples of a day program:
01 07:30 H3 -0.0
02 09:15 H1 -1.0
03 17:00 H3 -0.0
04 18:00 H2 -0.0
05 23:30 H2 -2.0
It is not necessary to use all change-times if the line only
reads 0, it will be skipped by the control system.
 03to-08.Thesedayscanbelledin•
individually in the same way as under item 02.
• 09Copyday.Usethismenuitemtocopy
one day to another, where the same change-
times, speeds and temperature lowering are
required. For example: From Thursday to
Tuesday.
User menu
Usethisfunctiontocongureandchangethefollowing
sub-items:
Item 1: Temperature
Conguretherequiredtemperaturebetween10°Cand
30°C in order to change the ventilation temperature. It is
apreconditionthatasuitableafter-heatsurfaceistted
tothedevice.Usebypasstoconguretheventilation
temperature to between 2°C and 30°C. (The room sensor
is mounted in the control panel).
Item 2: Pre-heat
If there is a pre-heat surface on the fresh air channel,
theset-pointshouldbesettoON.Conguretherequired
pre-heat temperature in the service menu under item 20.
Ifinsteadthereisacoolingdevicettedtotheventilation
channel, the set-point should be set to OFF. (It is not
possible to control both the pre-heat surface and
the cooling device). If both pieces of extra equipment are

10
Optima 250
tted,thisset-pointshouldbeconguredmanuallyinthe
spring and in the autumn.
If none of the help functions in item 27 in the service
menu are used, help function 4 can be used to control
extra cooling.
Item 3: After heat
Ifanafter-hearsurfaceisttedtothedevice,youcan
choose when you wish the after-heat surface to run. If
the set-point is set to OFF, the after-heat surface will not
run. If the set-point is set to ON, the after-heat surface
connectsasrequired.Itconguresitselfaccordingtothe
temperature set in item 1.
Item 4: Timer levels 3 and 4
At speeds 3 and 4, the device will automatically
reconnect to speed 2 after the number of hours that are
conguredinitem17byconguringtheset-pointtoON:
If the set-point is set to OFF, the device will run at speed
3 or 4 until it is manually changed to another speed. The
timer can also be operated directly with the button with
the symbol for extended operation on the display for daily
operating options.
Item 5: Change lter
Thereisabuilt-inltertimerthatcountshowlongthe
devicehasbeenrunningsincethelastchangeoflter.
Thesetpointcanbeconguredfrom1-6,which
corresponds to 1-6 months.
It is recommended that the set-point should initially be set
at 3, corresponding to 3 months.
Iftheltersaretoodirtyaftertheperiodcongured,
conguretheset-pointtoalowernumber.
Ifisnotnecessarytochangethelterafterthecongured
period,theset-pointcanbeconguredtoalarger
number.
Whenthetimerreachestheconguredvalueforthe
changeoflter,“Alarm”and“Changelter”willbeashat
the top of the screen saver.
Whentheltershavebeenchanged,returntothescreen
display for daily operating options and hold down the
buttonfortheltersymboluntiltheexclamationsign
disappears and the device returns to normal operation.
Display
Thisfunctioncanbeusedtocongureandchangethe
following sub-items:
Language
This function can be used to choose between the
languages Danish, German, English and French.
Programme info
Thisfunctioncanbeusedtocongureandchangehow
the information about the program is displayed. It displays
the version of the software used.
Screen saver
Thisfunctioncanbeusedtocongureandchangehow
the screen saver is displayed.
Interval
Thisfunctioncanbeusedtocongureandchangehow
long the interval should be.
Auto wake-up
Thisfunctioncanbeusedtocongureandchangewhen
the auto wake-up starts.
Auto lightness
Thisfunctioncanbeusedtocongureandchangehow
the automatic brightness should be.
Light day
Thisfunctioncanbeusedtocongureandchangehow
much light there should be on the display during daytime.
Light night
Thisfunctioncanbeusedtocongureandchangehow
much light there should be on the display during the night
time.
Light day pause
Thisfunctioncanbeusedtocongureandchangehow
long the break should be for light in the display during the
daytime.
Light night pause
Thisfunctioncanbeusedtocongureandchangehow
long the break should be for light in the display during the
night-time.

11
Optima 250
Default reset
Use this function to return all settings to the factory
default.
Safety menu
Thisfunctioncanbeusedtocongureandchangethe
safetylevelintheoperatingcongurationinconnection
with child safety device. It is possible to add a password
for access to changes in the various set-points.
Information menu
The information menu can be used to get an overview of
the devices’ current operating status. If you want to see
the devices’ operating status over an operating period,
connect the control panel to a computer and use the
Optima data program. The device monitors the operating
status every minute and stores the data for up to one
year on the SD card.
• PressEnternexttotheinformationmenu.The
 rstscreendisplayedshowsthecurrent
temperatures:
T1: Supply air
T2: Room
T3: Fresh air
T4: Exhaust
T7: Extract air
T8: Water frost
T9: Help sensors
• PressArrowdowntodisplaythecurrentspeeds
of the fans and the opening of the bypass
valve and the opening of the water valve:
Supply air in %
Extract air in %
Bypass valve in %
Water valve in %
Press the Arrow down again to display the current•
status of the operation relays:
Connected: On Not connected: OFF
R2: Electrical after-heat
R3: Electrical pre-heat
R8: Device running
R9: Help function
Press Arrow down again to display the current•
Alarms. An Alarm is activated if the word ON
appears beside it. At ON there is an alarm, which
can also be seen on the screen saver and the
image for daily control options, where it says
alarm above it. The information menu shows
whichalarmitis.Forthealarmforchangelter,
ChangelterwillblinkoverthewordAlarm. The
alarm will read OFF when the error has been
correctedorthelterischangedandreset.
Possible error messages for:
Control system stopped ON
Error: Filter not changed after 14 days./ For
water frost error/The device is equipped with
an external switch between terminals 28
and 29. An Alarm will be given when these are
short circuited and the device will stop.
Changelter ON
 Error:Theltersshouldbechanged
Water frost ON
Error: The water after-heat surface’s
temperature too low (Frost danger).
Com error ON
Error: The control panel cannot communicate
with the main circuit board (between display
and circuit board)
Press the Arrow down again to display the hour•
counter, which counts from the day the device is
putintooperation.Theguresshownshouldbe
multiplied by 10. This shows how many hours
the device has been running, how many hours the
installation has run at the various speeds and how
many hours the relays have been connected
(ON):
Total in operation:
Level 0
Level 1
Level 2
Level 3
Level 4
Relay 2 Electrical after-heat
Relay 3 Electrical pre-heat

12
Optima 250
Relay 8 Device in operation (Speed 1-4)
Relay 9 Help function.
Press Exit to return to the main menu.•
Service menu
Usethisfunctiontocongureandchangethefollowing
sub-items:
Item 10: Level 1 Supply air
Level 1 is the lowest speed and is usually used when
thereisnobodyhome.Bothfanscanbecongured
independently of each other for all levels so that the
volume of air in the air supply and exhaust is equal, which
provides optimal operation. The calibration of the device
must be performed with specialised air measurement
equipment and can be performed without the use of
themainregulatingvalve.Conguringtheairvolumes
without expert advice is not recommended. Incorrect
congurationcanleadtomajorenergyconsumption.The
default setting is 40%.
Item 11: Level 2 Supply air
Level 2 is the recommended speed for the device to run
in order to provide the optimal indoor climate and should
be calibrated for the house’s ventilation requirement.
The default setting is 70%.
Item 12: Levels 3 and 4 Supply air
Level3isthehighestspeedthatcanbecongured.Itis
used e.g. if there are a number of guests or there is a lot
of activity in the kitchen.
The default setting in level 3 is 100%.
Level4alwaysrunsat100%andcannotbecongured.
It is used mainly in summer to lower the indoor
temperature.
Remember that greater volumes of air exchange require
greater levels of energy consumption.
Item 13: Level 1 Extract air
The fan speed is adjusted until the same air volume is
achieved as the supply in level one.
The default setting is 35%.
Item 14: Level 2 Extract air
The fan speed is adjusted until the same air volume is
achieved as the supply in level 2.
The default setting is 55%.
Item 15: Levels 3 and 4 Extract air
The air volume in level 3 is calibrated to the same air
volume as the air supply in levels 3 and 4.
The default setting in level 3 is 70%.
Level 4 always runs at 100%.
Item 16: Fine tuning (T2)
Itispossibletonetunethecontrolpanel’sroomsensor
so the display shows the current room temperature. The
temperature can be adjusted between 0 and -5°C.
Item 17: Timer levels 3 and 4
If automatic reconnection is used for speeds 3 or 4, you
can enter how many hours the installation should run on
level 3 or 4 before it is automatically returns to level 2.
The set-point can be set to between 1 and 9 hours. The
default setting is 3 hours.
Item 18: Filter/stop
Toensurethattheltersarechangedwhenthecontrol
panel blinks “Change Filter”, the set-point can be set to
ON. The device will then stop automatically after 14 days
iftheltershavenotbeenchanged.
Ifyoudonotwantthisprecaution,conguretheset-point
to OFF and the device will continue to operate.
The default setting is OFF
Item 19: Method of control
It is possible to choose between room, air supply or air
extraction control:
• Roomcontrol(T2sensor)
• Airsupplycontrol(T1sensor)
• Airextractioncontrol(T7sensor)
If the device is used for a house, it will normally be set to
air supply control. The set point is set to 1.
For room control, set the set-point to 0.
For air extraction control, set the set-point to 2.
The default setting is 0

13
Optima 250
Item 20: Pre-heat
If pre-heat is set to ON in item 2 in the user menu,
the set-point should be set at the required fresh air
temperature, to which the pre-heat surface should heat
thefreshair.Thetemperaturecanbeconguredto
between -15 and 0ºC. The default setting is -10ºC.
Item 21: Bypass open
Ifthetemperatureincreasesto1ºCabovethecongured
temperature in item 1 in the user menu, the bypass valve
will begin to open on condition that,
the air extraction temperature is higher that the fresh•
air temperature
andthefreshairtemperatureisabovethecongured•
temperature in item 29.
In order to achieve a smooth opening of the bypass
valve, the temperature for the fully open bypass valve
should be approximately 3ºC above the temperature
set in item 1 in the user menu. The set-point can be
conguredbetween2°Cand10°C.Thedefaultsettingis
3ºC.
Item 22 Regulation water
If a water after-heat surface with a motor-operated valve
isttedtothedevice,itmaybenecessarytoadjustthe
regulation time.
The less regulation time, the faster the motor-operated
valve will regulate.
Theset-pointcanbeconguredtobetween1and250
seconds.
The default setting is 20 seconds.
Item 23: Regulation electricity
If an electrical after-heat surface or electrical pre-
heatsurfaceistted,itmaybenecessarytoadjust
theregulationtime.Theset-pointcanbecongured
to between 1 and 30 minutes. The default setting is 3
minutes.
Item 24: Frost reduction
To prevent the counter current heat exchanger from
freezing, it is possible to reduce the volume of supply
air gradually when the output temperature after the
countercurrentheatexchangerfallsbelowthecongured
temperature. This function gradually reduces the air
supplyvolumeuntiltheconguredvalueisreached.The
function is only active if the set-point is greater than 0°C.
Theset-pointcanbeconguredtobetween0and10ºC.
The default setting is 3ºC.
Item 25: Water frost
If a water after-heat surface with motor-operated valve
isttedtothedevice,awaterfrostsensorshouldbe
ttedtothewaterafter-heatsurfaceandtheset-point
conguredtoON.Ifthereisnowaterfrostsensor,the
set-pointmustbeconguredtoOFF.
The default setting is OFF
Item 26: Water frost temperature
Ifwaterfrostinitem25isconguredtoON,therequired
waterfrosttemperaturemustbeconguredtothe
temperature where the device should stop and the motor-
operatedvalvewillopencompletelyfortheowofhot
water.Theset-pointcanbeconguredbetween0°Cand
10°C.
The default setting is 5ºC.
Item 27: Help functions (R9)
Help functions with relay 9 can be used for the following:
Iftheset-pointisconguredto0,thehelprelay•
is turned off.
Iftheset-pointisconguredto1,therelayison•
when the device is running. This can e.g. be used
to open and close the fresh air and exhaust valve.
Iftheset-pointisconguredto2,therelayison•
when there extra heat is required or when you
want the circulation pump to run when heating
with the water after-heat is required.
Iftheset-pointisconguredto3,therelaywill•
beturnedonwhenachangeoflterisrequired.
This can be used to activate an external alarm.
If the set-point is set to 4, the relay will be turned•
on when extra cooling is required. This function
isusedifapre-heatsurfaceisalsottedtothe
device.
Iftheset-pointiscongured5,thecontrolsystem•
can handle an earth heat-exchanger with the aid of
a valve. The relay will be turned on for one of the
following two conditions:
The outdoor temperature, sensor T9, is lower1.
thantheconguredvalueinitem26(waterfrost
temperature, typically set at 5°C). Item 29 must also
be set at 0.
The outdoor temperature, sensor T9, is more than2.
1°Cabovetheconguredtemperatureinitem1and
1°C above the current room temperature.
Example: A water frost temperature of 5°C is selected in
item 26 and a desired temperature of 21°C is selected
in item 1 and the outdoor temperature is 1°C above the
current room temperature.

14
Optima 250
T9 measures:
5°C 21°C (+1°C)
Valve Valves Valve
switches switches switches
to earth to fresh to earth
heat air from heat
outside
Item 28: Device stop
It is possible to ensure that the device cannot stop by
using the button for the icon:
Select speed in the daily control options by•
conguringtheset-pointtoOFF.
Thedevicewillstopiftheset-pointisconguredtoON.
Item 29: Turn off bypass
Usethistocongurethelowestlimitforthelowestfresh
air temperature before the bypass is closed. The value
is an expression of the greatest difference that may exist
betweentherequiredtemperatureconguredinitem1
and the lowest permitted fresh air temperature. Can be
conguredbetween0ºCand20ºC.If0isselected,the
function is turned fully off.

15
Optima 250
Hours Mi-
nutes
Speed Red.
T2
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
Monday
4.4 Schedule for weekly program
Hours Mi-
nutes
Speed Red.
T2
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
Tuesday
Hours Mi-
nutes
Speed Red.
T2
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
Wednesday
Hours Mi-
nutes
Speed Red.
T2
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
Thursday
Hours Mi-
nutes
Speed Red.
T2
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
Friday
Hours Mi-
nutes
Speed Red.
T2
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
Saturday
Hours Minutes Speed Red.
T2
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
Sunday
Red. T2 = Reduced room temperature

16
Optima 250
4.5 Schedule for set points
Headline Default: Conguration area: Dato: Dato: Dato: Dato:
1 Temperature 20 10 - 30
2 Pre-heat OFF ON / OFF
3 After-heat OFF ON / OFF
4 Timer levels 3 and 4 OFF ON / OFF
5 Change lter 3 1 - 6
10 Level 1 supply air 40%
11 Level 2 supply air 70%
12 Level 3 supply air 100%
13 Level 1 extract air 35%
14 Level 2 extract air 55%
15 Level 3 extract air 70%
16 Fine tuning (T2) 3 0 - 5
17 Timer levels 3 and 4 3 1 - 9
18 Filter/stop OFF ON / OFF
19 Method of control 0 0 - 2
20 Pre-heat -10 -15 - 0
21 Bypass open 3 2 - 10
22 Regulation water 20 1 - 250
23 Regulation electricity 3 1 - 30
24 Frost reduction 3 0 - 10
25 Water frost OFF ON / OFF
26 Water frost temperature 5 0 - 10
27 Help functions 0 0 - 5
28 Device stop OFF ON / OFF
29 Turn off bypass 8 0 - 20

17
Optima 250
5. Function
5.1 Control system Optima 250
1. Room regulation:
The room temperature is controlled by the room sensor
T2,whichisttedinthecontrolpanel.Ifatemperature
ofe.g.21°Ciscongured,thecontrolsystemwillbegin
heating or cooling the air that is blown in when there is
adeviationof1°Cfromtheconguredtemperature.This
assumesthatextraequipmentistted.
2. Relay R8:
When the device is operating at levels 1, 2 or 3, the relay
will be turned on.
This function can be used to e.g. control the fresh air and
exhaust valve.
5.2 Extra capacity
Water after-heat:
On devices with a water after-heat surface, the motor-
operated valve will begin to regulate (PI regulation) when
the room temperature has fallen to 20°C.
Electrical after-heat:
For devices with an electrical after-heat surface, the after-
heat will connect when the room temperature has fallen
to 20°C. If the regulator time is set to e.g. 3 minutes, the
room sensor will measure after 3 minutes whether the
room temperature is now above or below 20°C. If the
temperature is still below 20 °C, the after-heat will be kept
on. When the room temperature at some point reaches
20°C, the electrical heat level will disconnect.
Bypass:
If the room temperature increases to 22 °C, the bypass
valve function will begin to regulate up to fully open,
which occurs at the room temperature to which “max
bypass”wascongured,e.g.26°C.Ifthebypass
function is ON, the bypass valve will normally open, but
if the outdoor temperature (T3) is 1°C higher than the
extraction temperature (T7), the bypass valve will close
in order to utilise the “free” cooling of the air supply that
the cross heat exchanger can provide. If an extra cooling
systemisttedtothedevice,thiswillturnonwhenthe
bypass valve is open completely and turn off again when
the bypass valve begins to turn off again. Devices with an
electrical pre-heat surface will regulate in the same way
as an electrical after-heat surface.
5.3 Operating reliability
Safety thermostat:
If an error occurs on an electrical heat surface, the safety
thermostat will disconnect. To re-connect the safety
thermostat, press in the small button in the middle of the
thermostat. The thermostat is located on the electrical
heat surface.
(Remember to disconnect the power to the device
before performing an intervention).

18
Optima 250
6. Connecting to a PC
6.1 Function description of data
logger
Thedataloggersoftwareisforconguringandmonitoring
Genvex devices. The hardware part of the data logger
is required if you want a connection to the device. The
data logger can only be connected to Optima 180, 200,
250, 300 and 310. The guide assumes a correct and
functioning set-up of the software. See any installation
guide for the software.
The user interface in Genvex data logger
The data logger can be used for several purposes.
Settings for parameters in the control system.•
Setting up and changing the clock program in the•
control system.
Reading of the data logger in the control panel for the•
past 6 years.
A “Live” logging of the device’s current operation.•
Subsequent analysis of a device’s operation•
User interface
The program is constructed with the primary picture in
the centre of the screen where the graphs are shown
that represent the information that is collected from the
control system. At the top is the menu line for the various
settings.
On the left side is shown the values that are read either
“here and now” or the values that lie underneath the red
line. The red line appears when you click on a random
locationonthedisplay.Theguresintheleftcolumn
will then be all of the values that lie below the line. The
colours of the graph in the logging area correspond to
the colours shown on the left hand side. The exact time
oftheloggingwillbedisplayedintheeldatthebottom.
Tip:Clickontheeldfortheclocktochangetheeldto
display “LOG NO.”. This can be useful if you want to refer
toallofaspeciclogging.Atthetopoftheactuallogging
area on the screen there is an area with grey and white
lines. These lines will be red if an exit or function is active.
Hold the mouse cursor over the line for a moment and
a small help text will appear. The left side of the logging
area is a scale for temperatures. The right hand side of
the logging area is the scale for percentages e.g. for the
fan speed. The bottom represents the time-line. A logging
can contain a number of pages and a there will therefore
be a page number in the bottom corners of the logging
area. Change the page by clicking on the red arrow.
Hold down the left mouse button for a moment over the
red arrow to bring up a dialogue box. You can enter the
page number you wish to scroll to here.
The status menu is at the bottom of the page. This line
shows the date and time, whether the data logging is
started or stopped and the control to which the software
iscongured(Canbechangedin“Settings”).
Menus
Files:
Retrieve data – Retrieves data saved earlier on the hard
disc
Saves data – Saves the current logging
Save window – Saves only the current window
Print – Prints the current window
Terminate – Terminates the software
View:
View graphs – Opens a check-box that gives the
possibility to select or deselect the graphs shown on the
screen. This is often to provide an overview.

19
Optima 250
Zoom – To make the picture bigger or smaller
View average – To view an average of the graphs in the
selected window.
Functions:
Startlogging–Opensadialogueboxtoenterale
name. It is a good idea to include the Optima version to
thelename,e.g.writeOpt310aspartofthename.A
new logging is then started from the control panel. The
logging is taken every 20 seconds and is then displayed
on the screen. After a while, the logging will begin to form
an image. If you do not click on the picture to bring up the
red line, the values on the left side will refer to the last
logging.
Stop logging – Stops the logging. The display on the
screen is saved automatically.
One logging – Performs only one single logging. It is not
saved automatically.
Comments to data – A comment to the logging can be
added here.
Delete data – The data can be deleted here.
Data from control system:
Set-points in control system – Opens the box below.
Here, all set-points from the hard disc or the control panel
can be retrieved, changed and then sent back to the hard
disc or the control panel.
The set-points for defrosting can be changed on the right
of the image. Take care when changing these settings.
The “Service menu” displayed is protected with a
password.
The password is not supplied.
Clock/week program in control system – Opens the box
below.
In this box, the clock program in Optima can be made
in a simpler and clearer manner. Select the day of the
week to be programmed by clicking on it. Monday has
been selected in the example. The clock program for
Monday is selected using arrow-up and arrow-down in
the lower window, immediately to the left of the buttons
with the days of the week. Select 1, 2, 3 or 4 under level.
If 0 is selected, the control system will skip the item. If 4
is selected, the device will stop. When the clock program
has been made for the selected day, the day can be
copied to the other days by clicking on the day of the
week. The buttons on the right hand side of the window
are used to receive and send the change times to and
from the control panel and to retrieve and save the clock
program to the hard disc. Terminate closes the window.
Data logging in control system – Here you can retrieve
the saved logging in the control panel to the program.
The logging can cover a maximum of 11 days and is
logged at 2 minute intervals. If the time of the last logging
deviates from the selected time, this should be changed
if possible. This is to accommodate the time-line at the
bottom of the screen. This may e.g. be relevant if the
logging is retrieved from a transmitted loose log circuit
etc.

20
Optima 250
Click on “Receive data” and the data will be loaded. Note
that this can take up to 10 minutes. While it is loading,
there will be no communication between the device’s
control system and the control panel.
Clock in controls – An easy way to set the clock in the
controls.
Settings:
Comport control – Here you can select the Com-port to
be used for the data logger.
See also the installation guide.
General set-up – The language and model can be
selected here.
Foldersfortheloglescanalsobeselected,e.g.itis
recommended to create a folder under “Documents” got
logs and get the program to suggest this folder as default.
Generally:
Note that:
The loggings are not connected to the set-up, i.e.•
although the solution is taken from either the hard
disc or from the control panel, it may not necessarily
match the selected control system. There is a risk
therefore that analysis may be performed from a
Combi, but values are displayed as if they originate
from an Energy.
If the logger circuit is removed from a panel to•
be read later, a note should be made of the time.
This can be entered when taking readout from the
software.
The software terminates in the event of a change of•
settings such as language or model. This is not an
error.
The default setting for the software is English. This•
can be changed in “Settings”.
Certainanti-virusprogrammeswillregardthelog-les•
as viruses when they are sent by mail.
6.2 Direct data logging
Connecting to a computer:
In order for Optima 250 to communicate with the
computer, a standard USB cable should be used with a
mini-USBsocket.Thisisttedbetweenthecontrolpanel
and the computer.
A: Terminal box. Connection to main circuit board
B: SD card
C: Room sensor
D: Light sensor
E: USB plug
Alowcurrentcable4x0.25mm2mustbettedbetween
the device and the control panel. The maximum cable
length is 50 metres.