Vollrath VB9 - Manual (Page 20)

English
Vertical batch freezer
20
9.3 Yearly maintenance
Periodically (basing yourself on the environmental conditions in which the machine operates) and in any case once every
year, make sure to have a general check- up.
T HE CHECK - UP MUST BE MADE BY THE AUTHORISED A SSISTANCE S ERVICE , OR , IN ANY
CASE , BY TECHNICALLY AUTHORISED PERSONNEL WITH SUITABLE TOOL . T HE MAINTENANCE
OPERATIONS RESERVED TO THE SERVICE ASSISTANCE CAN BE DANGEROUS IF CARRIED
OUT BY NON
- PROFESSIONALS , THEREFORE , FOR HIS OWN SAFETY , THE USER MUST NEVER
CARRY THEM OUT .
10 P
ERIODS OF INACTIVITY
If long periods of inactivity are foreseen, proceed as follows:
- wash up completely the device (see Section 7);
- switch off the power breaker and unplug the device;
- devices with WATER condensation: close the water faucet and relieve pressure from inside the delivery pipe by
unscrewing one of the pipe fittings. Remove both delivery and drain pipes and let all water out. Before using the pipes
again, following a long period of inactivity, check for any damages or cracks and replace, if necessary, pipe fittings’
gaskets.
- if the device will be stored in a different place, group all the documentation, together with the present manual, and
enclose it at the device (i. e. in the cylinder).
Before storing the device (with WATER condensation) in rooms with a temperature lower than 0°C it is
INDISPENSABLE to get rid of the water in the condensator and in the inlet and outlet pipes. Call the
Assistance Service.
11 M
ALFUNCTIONS
WE RECOMMEND YOU TO CALL IMMEDIATELY THE ASSISTANCE SERVICE IF A MALFUNCTION DIF-
FERENT FROM THOSE HERE DESCRIBED IS FOUND.
Note: the following malfunctions do not refer to problems noticed in the installation phase, but ONLY on correctly
installed - and already functioning - devices.
THE DEVICE DOES NOT WORK OR STOPS WORKING.
With the Main Breaker on 1, the ON/OFF indicator light [Z1] DOES NOT TURN ON.
Cause: The plug is not correctly plugged.
The plug is defective. A qualified technician should substitute it.
Power in the socket is missing. Check that the breakers, the omnipolar switches and the
differentials (lifesavers) on the electric system are closed. If they aren’t, before closing them,
make sure that no one is making electric maintenance.
A protective fuse of the electric system is cut down. Find and eliminate the eventual cause of
overcharge. Substitute cut down fuses with others of the same kind.
The supply cable is defective. BEFORE, cut down electrical feeding at the socket by opening
the breaker above it, then disconnect the plug and call the Assistance Service.
DO NOT TOUCH THE DAMAGED ELECTRIC CABLES BEFORE HAVING CUT DOWN
THE ELECTRIC SUPPLY!
With the Main Breaker on 1, the ON/OFF indicator light [Z1] TURNS ON, but the display shows 2 small
squares and the device does not work.