12
Optima 300
alarm will be given when these are short circuited
and the device will stop.
Change filter ON
Error: The filters must be changed
Pressure switch ON
Error: The high-pressure switch is disconnected
due to excessive pressure in the cooling system.
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 figures 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 Electric after-heat
Relay 3 Electric pre-heat
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 configure 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 configured
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. Configuring the air volumes
without expert advice is not recommended. Incorrect
configuration 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 configured. 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 configured.
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 fine 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.
