Description Of Controls - Costan SOUND CRYSTAL BT/TN R404A Instrucciones De Uso

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

SOUND CRYSTAL BT/TN R404A
The front right side of the cabinet contains the control panel (see fig. 17a on page 6) An electronic control unit
performs all cabinet control and regulation. The thermostat is factory-set in the BT version or TN version (meats)
according to the application to provide ideal performance. All details are accessible by pressing a few keys:
1) Defrost key and UP key: starts cabinet defrosting when the key is pressed for 5 seconds; also increases nomi-
nal temperature values
2) The stand/by key: puts the cabinet in stand-by condition when the key is pressed for 5 seconds
3) The SET key: changes the SET value when pushed twice (then the value is actually changed by the UP and
DOWN keys).
4) Internal base-deck light switch (optional) and DOWN key. lowers nominal temperature values.
5) Display unit that reads the temperature inside the base deck.
Defrosting the various line-ups at different intervals is recommended, possibly during the shop's closing hours.
Average defrost duration is 40 minutes (1 every 48 hours).
CABINET CONVERSION TO BT -TN VERSION:
1) Press the DOWN key (4) and then the "stand-by" key (2): hold them down simultaneously for approximately 5
seconds until the display reads TN
2) Release the keys, select the BT inscription using the UP (1) and DOWN (4) keys and confirm pressing the SET
(3) key. When this is done the cabinet switches back to the BT version
SOUND CRYSTAL BT/TN R290 GREEN
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 LT version (ice-creams and frozens)
or MT version (meat) as ordered. All information is available by the use of very few keys (see fig. 16 on page 6):
1) Lights ON/OFF control
2) Hold down manual defrost start (UP) for 5 seconds
3) To adjust the set point push the "SET" key twice, then adjust as appropriate using the "UP" or "DOWN" keys.
4) The "UP" key:
3) The "DOWN" key:
6) Hold down for 5 seconds --> to switch the controller to stand-by mode
To select the MT or LT versions:
Switch the controller to Stand-by mode, hold down the UP key for 5 seconds and select
Nt = MT operation
Lt = LT operation
Then switch the controller back ON.
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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