Central Control System Failure Emergency - Bartscher 707.127 Manual De Usuario

6.2 CENTRAL CONTROL SYSTEM FAILURE EMERGENCY

Should it become necessary to replace the Central control system due to a failure, and it's not possible to obtain the replace-
ment part immediately, it's possible to create an emergency circuit following the instructions given below:
Tools necessary: screwdriver.
- SWITCH OFF the machine and disconnect it from the main power supply.
- OPEN the panel covering the motor compartment.
- DRIVE OUT the screw  which fixes the electrical box inside on the door and open it carefully. The box is provided for a simple
opening.(6.2.a,b)
- DISCONNECT the transformer "TV" from the power supply (terminals 10 and 11 on the strip).
- DISCONNECT the terminal strip from the controller.
- DISCONNECT the wires of the terminals 16,17,18,19 and connect them together.
- CONNECT an electromechanical thermostat that is suitable for the equipment operating range (e.g.-35°C/+35°C 16(4)A
400V), to contact 12 on the terminal strip.
- CONNECT the before interconnected wires 16,17,18,19 to the free contact of the thermostat.
- INTRODUCE the thermostat probe into the cold room and adjust the set-point temperature.
- FIX the electrical box on the covering panel.
- CONNECT the machine to the main power supply and switch it on.
CAUTION!! Equipment modified in this way cannot be used for more than 24 hours.
CAUTION!! In an emergency only the cooling phase will function. The defrost phase will be excluded and for this reason, we
advise that cold room door opening and product handling to be reduced to a minimum.
When the new electronic controller is being reinstalled, all original connections have to be fitted according to the wiring dia-
gram.
Fig.6.2.a Fig.6.2.b
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Fig.6.3.a
GB