
LAUDA Ultra-Thermostats
UB 20(-D), UB 25, UB 50, UB 30, UB 40
UB 20 F, UB 20 J, UB 30 J, UB 40 J, UB 65 J
UB 20 JL, UB 30 JL, UB 40 JL
YATE0013 /10.04.02
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Normally 1
is input here to activate the timing function.
The timing clock symbol now appears in line L
1
before the last position. If the previous
selection was that the thermostat should switch on automatically, the thermostat now
switches off and starts up at the selected time.
When the unit has been switched off through the timing function, the display shows
L
2
CLOCK STOP!
The activated timing function can always be switched off with off = 0, i.e. with 0
.
In addition the timing function can be cancelled at any time with
.
10 Maintenance
10.1
Safety notes in case of repairs
Always pull out the mains plug for all repair and cleaning operations! Repairs on the
units with the cover removed must only be carried out by a qualified electrician.
10.2
Repair and re-initilisation
LAUDA thermostats are largely free from maintenance. Dirty thermostatic liquid should
be removed through the drain cock and replaced. If the unit should become faulty it may
be advisable to return only the faulty module where appropriate.
For reasons of safety and keeping to the EMC Guideline only original cables must be
used.
When replacing the control unit (electronics), check whether the new control unit has
been programmed for the correct basic unit type. If the correct type (R 400 P) does not
appear after having switched on the mains switch, proceed as follows:
Mains switch off, press the keys
and
simultaneously, and at the same time
switch on the supply.