Spare parts/accessories 
  6.2 Fan/battery module 
D4x5 
Manual, 03/2007 Edition 
59 
Battery 
A 3 V lithium battery can be inserted in the fan/battery module. The battery is preassembled 
with an approximately 4 cm long cable with plug. The appropriate mating connector is 
attached to a small printed circuit board for connection in the fan/battery module. 
See also 
List of available spare parts and accessories (Page 67) 
Replace battery in the fan/battery module. (Page 60) 
6.2.2  Fan/battery module assembly 
Procedure 
Two plastic rails for installing this module are located on the underside of the control unit. 
Use the following procedure to install the fan/battery module: 
1.  If required, insert a battery in the fan/battery module. 
2.  Hold the fan/battery module at an angle to the front with the open side facing up (battery 
visible). 
3.  Push the plastic guide into the cutouts on the underside of the control unit. 
4.  Tilt the fan/battery module up until the front latching device snaps into place. 
The electrical connection between the fan/battery module and the control unit is made 
automatically. 
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Figure 6-2  Fan/battery module assembly