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Digital air- conditioner controller KR- 454
(Alternatively you can also use the previous control unit FBS-450 with potentiometer.)
You can also switch on two different fan speeds of the front box by pressing keys S3
and S4 eingeschaltet werden (S3 > stage 1; S4 > stage 2).
If the front box features a cooling system, the 1. fan stage is switched on automatically
by the air-conditioner controller. It remains in operation till the engine is switched off or a
key is pressed manually. The LEDs located in the key corners indicate operation.
Connecting diagrams: see chapter 8.1
7.
SYSTEM SELF-TEST
The KR-454 air-conditioner controller features a special operating mode which can be
used to check the individual control circuits and monitoring elements, this is referred to
below as the self-test. This operating mode is practical only with the ignition switched on.
7.1. THE TEST PROGRAMS IN DETAIL
PROGRAM 1:
INDUSTRIE-ELEKTRONIK
The self-test is activated by simultaneously pressing keys S6 and
S11. You will then see "-01" on the display, i.e. test program 1.
You can select test programs 1 to 10 with keys S12 and S13.
You start the relevant test program by pressing key S14.
You can quit the self-test again by pressing key S6 ( AUTO ).
Control and regulating systems for vehicle air conditioning
D-71691 Freiberg a.N.,
Phone: +49 7141 / 68877 - 0
Issue: October 1998 - Copyright (C) BADER GmbH - Alterations reserve
Siemensstr.21
Fax: +49 7141 / 68877 - 39
page:
23
of:
42
04541530.SDW
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