13
Optima 300
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 filters 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 filters have not been changed.
If you do not want this precaution, configure 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 regulation (T2 sensor)
•
Supply regulation (T1 sensor)
•
Extraction regulation (T7 sensor)
If the device is used for a house, it will normally be set to
room control.
Configure the set-point 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
Item 20: Pre-heat ON
If there is a pre-heat surface fitted to the fresh air
channel, the set-point must be configured to ON.
Configure the required pre-heat temperature in the
service menu under item 21.
If instead there is a cooling device fitted 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
fitted, this set-point should be configured 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 21: Pre-heat
If the pre-heat is set to ON in item 2 in the user menu,
the set-point must be configured to the desired fresh
air temperature to which the pre-heat surface should
heat the fresh air. The temperature can be configured to
between -15 and 0°C. The default setting is -10°C
Item 22: Regulation water
If a water after-heat surface with a motor-operated valve
is fitted 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 configured 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 fitted, it may be necessary to adjust
the regulation time. The set-point can be configured
to between 1 and 30 minutes. The default setting is 3
minutes.
Item 24: Minimum air volume
In order to achieve optimal performance, the device’s air
volumes correspond to at least the air volumes contained
in the data sheet for the device in question. If the air
supply and extraction volumes are set lower than the
minimum requirement, the heat pump will stop and only
preheated air from the heat exchanger will be blown into
all the rooms. For devices without a heat exchanger,
unheated fresh air will be blown directly into the rooms.
Item 25: Water frost
If a water after-heat surface with motor-operated valve
is fitted to the device, a water frost sensor should be
fitted to the water after-heat surface and the set-point
configured to ON.
If there is no water frost sensor, the set-point must be
configured to OFF. The default setting is OFF
Item 26: Water frost temperature
If water frost in item 25 is configured to ON, the required
water frost temperature must be configured to the
temperature where the device should stop and the motor-
operated valve will open completely for the flow of hot
water.
The set-point can be configured to between 0 and 10°C.
The default setting is 5°C.
