INSTALLATION COMFORT AIR CURTAIN
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2.9.1 Modifying the interface
In order to adapt the unit for operation without touch pad
controller, the interface has to be modified. This is done by
removing jumpers 1 and 2 from block X64 on the interface.
1. Switch OFF the power supply.
2. Open the unit (see also the unit operating manual).
3. Move jumpers 1 and 2 to the reserve positions (X65)
4. Close the unit.
2.9.2 Connection of control components
Caution:
c Control components must be connected to block
X72 of the connector plate on the outside of the
unit.
Caution:
c Control components must switch with potential free
contacts. Biddle recommends the use of components
with gold-plated contacts and a low resistance.
Preferably lower than 20 mΩ in order to be able to
switch 1 mA at 5 VDC.
The control components can activate four functions:
• Switching the unit off (OFF)
• Switching the unit to low speed (1)
• Switching the unit to medium speed (2)
• Switching the unit to high speed (3)
A function is activated when a control component makes a
cont
act between the connected terminals as shown in the fig-
ure. Follow the instructions below to employ one or more
functions:
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