Dantherm AD 290B Manuel De Service 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 dehumidi- let the fan run no matter whether the dehumidifier is running or not. In such cases fan
fier 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 76:
continued
Step
1 Dismantle the top cover
2 Change the connection between terminal 5 and 6 at the top of the multiple
plug, thus creating a connection between terminal 4 and 6. (see numbering at
the inside of the top cover)
3 Disconnect the connection between SA1 terminal 2 and the hour meter by
moving the conductor in the two-pole terminal block to the empty adjacent
terminal
Action
29