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GB

17

GENERAL INFORMATION AND
INSTALLATION

A. INTRODUCTION

This manual provides the specification and the step-by-
step procedures for the installation, start-up and opera-
tion, maintenance and cleaning for the Icemakers.
The machine cubers are quality designed, engineered
and manufactured.
Their ice making systems are thoroughly tested providing
the utmost in flexibility to fit the needs of a particular user.
This product qualifies for the following listings:

These icemakers have been engineered to our own rigid
safety and performance standards.
The VDE - SEV - WRC seals signifity that it is listed with
them and that it complies with the materials and manu-
facturing standard of them. These seals also signify that
these icemaker models have been inspectors who
reserve the right to periodically examine production ice-
makers at the factory to assure continued compliance.

NOTE. To retain the safety and performance built into
this icemaker, it is important that installation and main-
tenance be conducted in the manner outlinde in this
manual.

B. UNPACKING AND INSPECTION

1. Call your authorized Distributor or Dealer for proper

installation.

2. Visually inspect the exterior of the packing and skid.

Any severe damage noted should be reported to the
delivering carrier and a concealed damage claim form
filled in subjetto inspection of the contents with the car-
rier’s representative present.

3.
a) Cut and remove the plastic strip securing the carton

box to the skid.

b) Remove the packing nails securing the carton box to

the skid.

c) Cut open the top of the carton and remove the poly-

styre protection sheet.

d) Pull out the polystyre posts from the corners and then

remove the carton.

4. Remove the front and the sides panels of the unit and

inspect for any concealed damage. Notify carrier of
your claim for the concealed damage as stated in step
2 above.

5. Remove all internal support packing and masking

tape.

6. Check that refrigerant lines do not rub against or touch

other lines or surfaces, and that then fan blades move
freely.

7. Check that the compressor fits snugly onto all its

mounting pads.

8. See data plate on the rear side of the unit and check

that local main voltage corresponds with the voltage
specified on it.

CAUTION. Incorrect voltage supplied to the ice-
mark will void your parts replacement program.

9. Remove the manufacturer’s registation card from the

inside of the User Manual and filling all parts including:
Model and Serial Number taken from the data plate.
Forward the completed self-addressed registration
card to the factory.

C. LOCATION AND LEVELLING

WARNING.

1. Position the storage bin in the selected permanent

location.
Criteria for selection of location include:
a) Minimum room temperature 10°C (50°F) and max-

imun room temperature 40°C (100°F).

b) Water inlet temperatures: minimum 5°C (40°F) and

maximum 40°C (100°F).

c) Well ventilated location for air cooled models (clean

the air cooled condenser at frequent intervals).

d) Service access: adequate space must be left for all

service connections through the rear of the ice
maker. A minimum clearance of 15 cm (6”) must be
left at the sides of the unit for routing cooling air
draw into and exhausted out of the compartment to
maintain proper condensing operation of air cooled
models.

NOTE.  With the unit in “built-in” conditions, the ice
production is gradually reduced in respect to the lev-
els shown in the graph, up to a maximum of 10% at
room temperatures higer than 32°C.
The daily ice-making capacity is directly related to the
condenser air inlet temperature, water temperature
and age of the machine.
To keep your CUBER at peak performance levels,
periodic maintenance checks must be carried out as
indicates on this manual.

Summary of Contents for N21

Page 1: ...Cod 71503341 0 3 00 GB OUR SYSTEMS CONFORM TO EC STANDARD 73 23 CEE 89 336 SERVICE MANUAL N21 AUTOMATIC CUBERS...

Page 2: ...IONAMENTO OPERATING PRESSURES PRESSIONS DE FONCTIONNEMENT BETRIEBSDR CKE Pressione di mandata Discharge pressure Pressions de fonctionnement Hochdruckbereich N 21 Raffreddamento ad aria 21 C Air coole...

Page 3: ...t for any concealed damage Notify carrier of your claim for the concealed damage as stated in step 2 above 5 Remove all internal support packing and masking tape 6 Check that refrigerant lines do not...

Page 4: ...much the three items listed above Low water pressure below 1 bar may cause malfunction of the ice maker unit Water containing excessive minerals will tend to produce cloudy colored ice cubes plus scal...

Page 5: ...ations and possible failure 9 Have the bin liner and cabinet been wiped clean 10 Has the owner user been given the User Manual and been instructed on the importance of periodic main tenance checks 11...

Page 6: ...ow control OPERATIONAL CHECKS C At completion of the water filling phase the unit initiate automatically the first freezing cycle with the start up of Fig 1 COMPRESSOR WATER PUMP FAN MOTOR in air cool...

Page 7: ...filter or conditioner J With the icemaker in the harvest cycle hold ice against the bin thermostat control bulb to test its shut off Fig 4 This should cause the ice maker to shut OFF after 30 seconds...

Page 8: ...med portion of the freezing cycle is pre fixed and related to the setting of the upper part of the timer cam The electrical components in operation during the freez ing cycle are COMPRESSOR FAN MOTOR...

Page 9: ...made by turning its adjusting screw located on front side With a clockwise rotation of the setting screw the thermostat cut IN temperature will be lowered longer freezing cycle thicker ice cube while...

Page 10: ...e contacts its bulb Being it connected in series with the front microswitch of the timer it causes the unit shut off only at the end of the freezing cycle when the ice cubes are com pleted After ice i...

Page 11: ...gas valve coil is activated so to attract the hot gas discharged from compressor to flow directly into the evaporator serpentine to defrost the formed ice cubes L FAN MOTOR Air cooled version The fan...

Page 12: ...place valve Locate and repair Remove and clean Main switch in OFF position Loose electrical connections Inoperative bin thermostat Low voltage Contactor with burnt contacts Non condensable gas in syst...

Page 13: ...et valve not opening Hot gas valve orifice restricted Discharge head pressure too low Inoperative fan pressure control Inoperative fan motor Water regulating valve misadjusted Water tubing leaking Rem...

Page 14: ...as during the freezing cycle the bin thermostat contacts are bypassed by the front microswitch of the timer When remove the ice cubes from its sensing bulb the unit will restart after few seconds from...

Page 15: ...in the automatic mode 12 Re fit the evaporator cover and the unit service panels 13 At completion of the freezing and harvest cycle make sure of proper texture and clearness of the ice cubes and that...

Page 16: ...GB 30 ELECTRIC DIAGRAM N21...

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