Description Of Controls - Costan Sound Crystal Tn R290 Betriebsanleitung Für Betreiber

This is why foods that have been overheated must never be introduced in the cabinet. Use padded gloves when
handling ice-creams and frozen food.
For best cabinet operation we recommend:
• Loading the products as explained in the preceding section;
• Never leave top glass sliders open or ajar (fig. 12 on page 13). It is advisable to often check that all sliders are
closed: you will thus avoid unnecessary energy consumption and frost build-ups on the walls and you will also allow
better foods preservation.
SOUND CRYSTAL cabinets implement "skin condenser" technology that allows heat loss through the outer walls of
the cabinet. This is why the outer walls are normally warm; this enables the formation of mist in case of high
ambient humidity.

DESCRIPTION OF CONTROLS

The front right side of the cabinet contains the control panel. An electronic control unit performs all cabinet con-
trol and regulation. The thermostat is factory-adjusted for ideal service in the BT version (ice-creams and frozens).
All information is available by the use of very few keys (see fig. 16 on page 14):
3) UPPER key: to set off the alarm or silence it.
3) MIDDLE KEY: to change the SET value.
3) LOWER key: to start cabinet defrost when this key is held down for a suitable time.
It is recommended to defrost the various cabinets in a line-up at different times, possibly during the shop's closing
hours. Average defrost duration is 40 minutes (1 every 48 hours).
HOW TO SWITCH FROM BT (LOW-TEMP) TO TN (POSITIVE-TEMP) OPERATION:
Hold down the middle display key until either the A1 or A2 reading appears. Then make your selection using the
UPPER key:
A1= BT
A2= TN
To confirm your selection press the MIDDLE key.
DEFROST ON DEMAND:
Hold the LOWER key down until the "DEF" reading appears. The cabinet will then start to defrost.
HOW TO CHANGE THE SET POINT
Press the MIDDLE key briefly 3 times. When the cabinet's set point appears it is possible to change it (within a range
of values established by the manufacturer) using the UPPER and LOWER keys. Confirm your selection using the
MIDDLE key.
HOW TO TURN ON THE LIGHTS
On versions featuring lights without a lights on/off key, use the LOWER key to operate the lights.
OPTIONAL PROMOTIONAL DISPLAY
The lighting of the optional promotional display has a separate electric circuit. The neon lamps are controlled by
a switch located on the lower part of the display.
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