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NECTA SPA TECHNICAL MANUAL 

SFERA

 “ 

Manual  

“ SFERA”  

 

 

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5- COOLING UNIT  

The internal temperature controlled by means of an 

NTC

type electronic, controlling a traditional type cooling unit,
but with design features that will bring it to the top of
what is currently available on the market. 
Yje NTC probe has an internal resistance that varies
according to the ambient temperature change. 
At the temperature of 0° C it is 2612 Ohm 
At the temperature of 3° C it is 2267 Ohm 
At the temperature of 30°C it is 733 Ohm 
This way the software controls the unit switching on and
off with extreme accuracy. 
The unit is controlled by means of a relay card located in
the power supply unit (SOR card). 
When the machine is switched on, the software reads the
value (in Ohm) from the NTC probe and, according to that
value, sends a signal to the relay card that activates or
deactivates the cooling unit operation. 
The cooling unit is very compact, with the air intake for the
condenser cooling from the lower part of the base through
a filter that removes the dust; such filter is accessible and
easy  to  remove  for  cleaning  FIG.  2.  The cooling air is
expelled from the front side through the lower grille,
allowing installation in a bank  of  machines  or  in  a  small
space without causing problems to the cooling unit.

 

In order to completely remove the cooling unit the
dispensing compartment assembly has to be removed
(quick and simple operation), therefore remove the
fastening screws from the unit and support the evaporator
during the extraction operation, ensuring that the power
cable and the power supply unit connector are
disconnected.  FIG 3

 

The control software has the option of setting switching on 
time periods, or the safety temperature. See specific 
programming manual for further details. It is possible to 
set the first two trays with a temperature suitable for 
perishable food products.

 

 

 

FIG. 2  

Condensation dust 
removing filter 

 

Removable 
external grille 

FIG. 3  

Perspective view of cooling unit

 

Evaporator 

 

Condenser 

Compressor 

 Evaporator 

 

  Condenser  
 

FIG. 1 

Compressor

Fan  

Liquid waste container

 

NTC Probe 

Evaporator fan 

Содержание Sfera 6-32R / E

Страница 1: ...ECTA SPA TECHNICAL MANUAL SFERA Manual SFERA 1 19 SERVICE MANUAL SFERA BASIC TECHNICAL MANUAL THE CONTENTS OF THIS DOCUMENT ARE INTENDED FOR NECTA S AFTER SALES PERSONNEL AFTER SALES SERVICE Snack Foo...

Страница 2: ...d configuration Vending systems Power supply and Wiring Cooling unit Cabinet and Door Trouble shooting HACCP directive Use instructions Periodical cleaning and hygiene Daily Weekly Yearly Pages 3 4 5...

Страница 3: ...irect for five advertised selections NB2 without such code the machine is supplied with only the 12 button numeric keypad DESCRIPTION VARIABLES TRAYS Up to 6 max HEIGHT 0F TRAYS 96 mm min and up to 21...

Страница 4: ...e code is indicated on the side in any case there are many configurations options with simple and quick change operations Release spirals with different pitches are provided as indicated in the user m...

Страница 5: ...NECTA SPA TECHNICAL MANUAL SFERA Manual SFERA 5 19 Sfera 6 36R B Sfera 6 36R UK Sfera 6 32R E Sfera 6 36R D Version provided for Spain Version provided for Belgium Version provided for Germany...

Страница 6: ...th a 3 x 1 5 mm2 section 1 HO5 VV F 2 HO7 RN F In all configurations the cable is fitted with a SCHUKO plug permanently fixed to the cable NOTE In the event of replacement cables of exactly the same c...

Страница 7: ...Board Payment system connections NTC Probe Cooling unit control J12 RATIOMOTOR CONNECTIONS POWER SUPPLY UNIT CPU CENTRAL PROCESSING UNIT BOARD RS232 PORT PRINTER PROGRAMMER PC Phototransistor card Rec...

Страница 8: ...during the normal operation YELLOW LED It glows when 5 V DC is present in the board RED LED it glows when the software is reset program malfunction Minidip functions 1 4 REF 20 Coin mechanism setting...

Страница 9: ...NECTA SPA TECHNICAL MANUAL SFERA Manual SFERA 9 19 TRAY CONNECTION WIRING DIAGRAM CONNECTOR Detail of spiral control ratiomotor To connector J 12 CPU board 4 5 1 6 3 2...

Страница 10: ...FERA 10 19 POWER SUPPLY AND LIGHTING DIAGRAM 2 1 3 4 5 6 7 Wiring diagram of dispensing compartment slider lock device kit 1 2 Power supply EXE 3 4 Connector J14 24 V DC CPU board power supply 5 6 7 8...

Страница 11: ...o be able to dispense 20 to 76 mm wide products In addition the spirals can be right or left hand to be used in double compartment configuration with double spiral The ratiomotor is fitted with a mini...

Страница 12: ...ile the lamps and the cooling unit are controlled by means of special relay cards at the grid voltage The power supply unit is housed in a removable galvanised steel metal box for greater accessibilit...

Страница 13: ...condenser cooling from the lower part of the base through a filter that removes the dust such filter is accessible and easy to remove for cleaning FIG 2 The cooling air is expelled from the front sid...

Страница 14: ...by means of a single lock located inside the sliding compartment on the right A sliding compartment is located on the front right side with the user interface integrated on its front panel the CPU bo...

Страница 15: ...nge the operating default values The machine will continue working but some parameters could have been changed with consequences to the general functioning the RAM needs to be initialised as soon as p...

Страница 16: ...otected against short circuits with two line fuses one on each phase with fuses on the secondary winding and on CPU board power supply see wiring diagram Check that the fuses are intact and if necessa...

Страница 17: ...hygiene practices After cleaning do not touch the surface of any elements that may come into contact with food Wash your hands thoroughly preferably using disinfectant before starting any hygiene ope...

Страница 18: ...cabinet with a cloth dampened with a chlorine based detergent Check that there are no small insects Open the door and disconnect the machine form the power supply FIG 1 Clean the outside and inside of...

Страница 19: ...ed detergents Completely remove the cooling unit FIG 3 thoroughly clean the internal base and make hygienic Remove all the dust from the fans and cooling unit condenser FIG 4 Clean and make hygienic t...

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