DOL 434 LPV
Technical Manual
19
Depending on the type, location and connection method, however, a stir fan can be used for many different pur-
poses.
A stir fan can be connected with relay, 0-10 V, 0-10 with reverse and with slave relay.
Each stir fan can be named for recognition in menus, activity log, and overview.
3.7.8.1 Control methods for stir fan
Relay
Control method: 24-hour clock or temperature.
The stir fan can be regulated either in connection with one or two temperature sensors or a 24-hour clock.
0-10 V
Control method: temperature.
The stir fan is regulated with a minimum and a maximum speed based on a positive temperature offset at the
temperature sensor.
0-10 V with reverse relay
Control method: temperature.
The stir fan is regulated with a minimum and a maximum speed based on a positive temperature offset at the
temperature sensor.
Also the direction of rotation of the stir fan can be reversed. Thus, it will be running at minimum speed based on
a negative temperature offset at the temperature sensor.
See elaborate descriptions of the control methods in the climate controller’s User Manual.
3.7.8.2 Wind protection of stir fan
When using a weather station the house controller can turn off the individual stir fan if e.g., there is strong wind
from a specific side. The function is mainly intended for the protection of big stir fans that can be very sensitive
to wind. It will as well contribute to energy savings as the stir fans are stopped when the exchange of air is
maintained by the natural air circulation.
Natural system selec-
tions
Select which natural air inlet systems should use wind protection for the individual
stir fan.
When the weather conditions exceeds the allowed limits the stir fan stops if the air
inlet system is open.
The limits for wind velocity and wind direction is set in the menu
Climate | Stir fan | Wind protection | Stir fan
limitations
. See the section on Wind protection in the user manual.
3.8 Production
3.8.1 Light control
The main light can be fitted with a light dimmer.
The light control consists of two different types of light: main light and inspection light.
Light dimmers with relays are used in houses, where the light source used cannot be switched off by means of
the dimmer alone.
Light control
Main light
Setting the main light with or without dimmer, with or without relay.
