Burkert Type 8660 - Manual (Page 25)

Type 8660 Control Center
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7.3.4 Switching level 1 of the front box blower on and off in ZE
When the Front box blower knob is adjusted in operational mode Ignition on and Motor off, only blower
level 1 can be switched on or off. If the set point regulator points to the symbol 0, then the blower is
switched off; if it points to the symbol for level 1, 2 or 3, then blower level 1 is switched on.
7.3.5 Changing the temperature set point in ZE
In operational mode Ignition on and Motor off, it is possible to change the temperature set point 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. The supplementary water pump
switches itself on automatically when the valve position is greater than 15% and switches off again
when the valve position is less than 10%.
7.3.6 Switching the supplementary heater on and off in ZE
(only with Control Center 2 and 3)
In operational mode Ignition on and Motor off, the supplementary heater can only be switched on and
off by pressing the key , not with the time-switch. It can only be switched on when the position of
the front box valve is greater than 15%. When the valve position is less than 10%, the supplementary
heater will be automatically switched off.
Feedback concerning the condition of the supplementary heater is indicated by the light-emitting diode
in the key . When it blinks, the supplementary heater has been contacted by the Control Center.
Illumination means that the supplementary heater is switched on. If within the first 60 seconds no
feedback is registered from the supplementary heater, the LED will clear. This means that the
supplementary heater would not allow itself to be switched on. A special error message will not be
shown, in this case.
If the supplementary heater was switched on in operational mode Ignition on and Motor off with the
key , it will automatically be switched off when the system is switched to the operational mode
Ignition off.