Burkert Type 8660 - Manual (Page 22)

Type 8660 Control Center
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With the exiting of the setting mode Day and Condition of the time-switch, or the setting mode Switch
time, the changes which have been made to the time-switch day or the switch time will be saved and
active. When at least one time-switch day is active (on), the symbol next to the Temperature set
point knob will be illuminated.
After the supplementary heater has been switched on once by the time-switch, the condition of the
corresponding time-switch day will be changed from 'on' to the condition 'oFF'. In this way, the time-
switch can be programmed for a maximum of 7 days.
7.2.4 Changing the air flow direction in ZA
The air flow direction can be changed by adjusting the Air flow direction knob. When the knob is
pointed to the symbol for Air flow direction to windshield, Air flow direction to windshield and to driver
or Air flow direction to driver, the air flow will be conducted in the corresponding direction.
7.2.5 Switching the Defrost function on and off in ZA
The Defrost function will be switched on, when the Air flow direction knob is turned to the symbol
(Defrost). In the operational mode Ignition off, this function automatically includes the directing of the
air flow direction to the windshield and the opening of the front box valves. The Front box blower knob
and Temperature set point knob have no functions, when the Front box flaps knob is in this position.
7.2.6 Changing the temperature set point in ZA
In operational mode Ignition off, the temperature set point can be changed by adjusting the
temperature set point regulator. The front box valve will be accordingly adjusted, depending on the
setting of the temperature set point regulator.