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Using the Futura control unit.
The control unit in the DEFA WarmUp ensures that the car is warm at the required time. The unit has 2 individual
pick-up
times
for every 24-hour, suitable for car owners using the car at the same time every day
In addition to being an advanced control unit for the DEFA WarmUp, the unit is equipped with a number of other functions.
The control unit displays the outside temperature, it has an ice warning device and it shows the battery voltage/charging volt-
age. The display lighting on the unit is lit when the engine is running or when one of the buttons is pressed.
Pick-up times is the time the car will be used.
Function of the buttons - Function button
.
For each hit on the button the unit displays
:
• 24 hour clock.
• * Battery voltage.
• Drive-away time I - Default 08:00.
• * Outside temperature in ºC
• Drive-away time II - Default 16:00
* If the battery voltage and outside temperature are not displayed, an outside temperature sensor is not installed. In this
case, the time-program controller will alternate between 24 h clock, departure time I and departure time II each time the
.button is pressed.
Arrow buttons
.
Used for setting the time and programming the drive-away times. Pressing both arrow buttons at the same time puts the
control unit into programming mode and the display digits blink. The left arrow button adjusts the time backward and the right
arrow button forward.
Heat button
.
The heat button is used to choose between several pre-programmed heating programs. For each hit on the
button the
control unit varies between the following heating programs:
A
Automatic switch-on controlled by the outside
temperature.
ON time 3 hours before selected drive-away time.
ON time 1 hour before selected drive-away time
On
DEFA Warm Up
ON.
ON time 2 hours before selected drive-away time.
DEFA Warm Up
OFF
(no symbol in the display).
Temperature-controlled automatic switch-on.
When
A
utomatic switch-on is selected, the sensor will take the outside temperature and decide the correct switch-on time in
relation to the programmed drive away time. Lower temperatures require longer warming up periods to reach the required engine
and interior temperatures. The graph
D
shows the on-time in minutes at different outside temperatures. Note that the on-time
is always related to programmed drive away time.
EXAMPLE 1
EXAMPLE 2
At 0ºC the control unit switches on the DEFA WarmUp 75
minutes before drive away time. During this period the
engine temperature increases by approximately 30ºC.
At -17ºC or colder the DEFA WarmUp is switched on 180
minutes before drive away time and the engine tempera-
ture increases by approximately 50ºC.
If the vehicle is not started at the programmed drive away time, the on-time is automatically extended by 2 hours (Oversleep
function). After that the system switches itself off and remains switched off until it is time to switch on for the next drive away
time. This is valid whether 1, 2 or 3 hours on-time has been selected. When the car is started the remaining on-time and the
oversleep function are automatically erased.
It is recommended to program the control unit to Automatic switch-on, as this is most economical.
B
C
D
