Genvex Optima 310 DESIGN, User Manual

Page: 14 / 28

14
Optima 310
than the configured value in item 37 (water frost
temperature, typically set at 5°C).
The outdoor temperature, sensor T9, is more than 2.
1°C above the configured temperature in item 1 and
1°C above the current room temperature.
Example: A temperature of 5°C is selected in item 37 and
a desired temperature of 21°C is selected in item 1 and
the outdoor temperature is 1°C above the current room
temperature.
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 •
configuring the set-point to OFF.
The device will stop if the set-point is configured to ON.
Item 29: Stop defrosting
It is standard for the defrosting period when the cooling
surface has reached a temperature of 5°C, which is
the default setting. It may be necessary to change
this temperature to a higher value in special operating
conditions where the cooling surface is not completely
defrosted.
The temperature can be adjusted between 0 and 15°C. It
is not recommended to change the default setting without
expert advice.
The default setting is 5°C.
Item 30: Compressor Start/stop
The default temperature difference between start/stop
compressor is ± 0.4°.
It is recommended to change the temperature difference
for special operating situations.
The difference can be adjusted between 0.1 and 1.0°C. It
is not recommended to change the default setting without
expert advice.
The default setting is 0.4°C.
Item 31: Constant ON
If the house’s other heating system is not connected
to the heating pump system, the house’s other heating
system, e.g. boiler, can stop the water pump so that water
pump device with heat exchanger only blows pre-heated
air into all rooms. This will cause increasing problems
with draughts as the temperature falls outside. Devices
without heat exchangers will blow fresh air directly in.
Configuring the set-point to ON will disconnect the room
sensor. The heat pump will always operate and blow
warm air in when the fresh air temperature is below the
temperature configured in item 32.
If the set-point is configured to OFF, the room sensor
will regulate the heat pump regardless of the fresh air
temperature.
The default setting is OFF
Item 32: Constant
If constant =ON is connected in item 31, the required
fresh air temperature can be configured.
The temperature can be configured to between 0°C and
10°C.
The default setting is 5°C.
Item 33: Reduce the volume of fresh air
For very low fresh air temperatures, lowering the air
supply volume is recommended in order to improve the
heat pump’s operating conditions and to also achieve a
higher diffusion air temperature, even though the same
volume of air will be taken in. By configuring the set-
point to ON, the volume of diffusion air will be lowered
when the fresh air temperature falls below the configured
temperature. If the set-point is configured to OFF, there
will be no reduction of the diffusion air volume. This
configuration is used when there is a pre-heat surface on
the fresh air.
The default setting is OFF
Item 34: Fresh air temperature
When the set-point is ON in item 33, it is recommended
that the fresh air temperature is configured to -10°C. The