OPERATION
What happens if ... ?
Possible display
888
OFF
One digit in the display flashes
P1.3
P 1.3 alternating with inside
temperature
P. o n
P. OF
P. rE
Pro alternating with inside
temperature
n I
hold
stop
CYCL
E-3
E-4
E-S
E-6
E-7
E-8
E-9
Explanation
Control unit test phase
Status of the control unit, heating and ventilation disabled
The flashing value can be changed
Program segment when entering an added-feature program function
Program segment while the added-feature program is in progress
Status command for an added-feature program:
Program on standby, wait for program start
Status command for an added-feature program:
Program on standby, do not execute yet
Status command for an added-feature program:
Delete program from memory completely
Entered program on standby
Power failure (> 20 ms) with subsequent restoration: the heating
switches off, "P r o" alternates with the temperature inside the unit
on the display, if a program is in progress It is Interrupted and must
be started again.
Program segment when entering and activating the programmed
controller function.
Termination command when entering the programmed controller
function: the temperature set for the last program segment is
maintained on termination of the program
Termination command when entering the programmed controller
unction: the heating and ventilation is switched off on termination of
he program
Termination command when entering the programmed controller
function: when the program is terminated, it retums to the beginning
and starts again
A termination command is entered for this program segment when
entering the programmed controller function. The termination
command must be changed to a time value to enable the input of a
emperature value.
Stored data defective
Switch the unit off and on again. If the problem persists, contact the
service center
Error of measurement in the reference values
contact (he service center -
Upper-limit violation of actual temperature tolerance
contact the service center -
.ower-limit violation of actual temperature tolerance
contact the service center -
Temperature sensor or input defective
contact the service center -
Stored data defective
contact the service center -
Erroneous reference values
contact the service center -
Issue: May, 1994
50 042 750
17/34
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