Digital air- conditioner controller KR- 454
2. QUICK-START OPERATING INSTRUCTIONS
These instructions provide you with general information on the individual functions of
the KR-454 air-conditioner controller.
DISPLAY
The outside temperature is always displayed as the basic display with the ignition
switched on.
If the ignition is switched off, the decimal point between the minutes and hours
display blinks as a tell-tale indication of the function of the microprocessor. The
display is used to show the data for error detection in test mode.
AUTO
The normal mode of operation of the air-conditioner controller is Automatic mode.
This mode is activated automatically with the engine running. Both the LED-display
“Auto“
(S6)
and the “Convector“
(S11)
are flashing. You can now set the required
passenger compartment temperature for the passenger compartment with the
setpoint keys
S17
or
S18
. You can set a temperature between 18°and 28°C.
VENTILATION
The roof duct fans can be switched on manually with keys
S7
and
S8
. This closes the
motor valves for the roof duct heaters and ventilates at 40 % or 100 % of the fan
capacity.You can fix the fan speed to 40% or 100% by pressing keys
S7
or
S8
in
Automatic mode. (
Caution:
The automatic passenger compartment control is
obstructed by that.)
CONVECTORS
The convectors are switched on automatically and control their temperature as preset
on the setpoint passenger compartment in Automatic mode. The value sensed by the
convector sensor serves as the actual value, and the passenger compartment
temperature sensor limits heating of the passenger compartment.
The convectors can also be switched on during Ventilation- and Stationery heating
mode and are controlled as in Automatic mode.
FRONT BOX
The air-conditioner controller includes a front box control system for the driver's
cockpit accommodated in the left-hand part of the unit. You enter the temperature
with the setpoint keys
S15
or
S16
. Various keys permit you to operate the flaps and
the 2-stage fan.
3. DESCRIPTION OF KEY FUNCTIONS
INDUSTRIE-ELEKTRONIK
Control and regulating systems for vehicle air conditioning
D-71691 Freiberg a.N.,
Siemensstr.21
Phone: +49 7141 / 68877 - 0
Fax: +49 7141 / 68877 - 39
page: 6
of:
42
04541530.SDW
Issue: October 1998 - Copyright (C) BADER GmbH - Alterations reserve
