Dantherm AD 400 B Service Manual page 29

Start-up and adjustment,
Constant fan opera- This operation mode is only used when a hygrostat is connected!
tion for hygrostat- When the dehumidifier is controlled by a hygrostat it may in some cases be desirable to
controlled dehumid- let the fan run no matter whether the dehumidifier is running or not. In such cases fan
ifier and rotor are in operation continuously. The hygrostat switches the heating element on
and off in accordance with the set value. When the heating element is switched off there
is no dehumidification.
In order to obtain this operation mode, the wiring has to be changed as follows, please
see the section "Power circuit", page 92:
continued
Step
1 Dismantle the top cover
2 Change the connection between terminal 4 and 5 at the bottom of the termi-
nal block, thus creating a connection between terminal 4 and 6. (see number-
ing at the inside of the top cover)
3 Move the terminal connection SA1 to terminal 4 at the top of the terminal
block from terminal 4 to terminal 7.
Action
29