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Too low ambient and water temperature (well
below the limitations of respectively 10°C and
5°C - 50°F and 40°F) or frequent interruptions of
the water supply to the freezing cylinder (clog-
ging of thewater hose connecting the float
reservoir to the water inlet at the bottom of the
freezer) may cause the ice to get too hard and
compact loosing fluidity and thereby seizing the
auger.
This situation will put under excessive strain
and load the entire drive system and freezer
bearings.
REFRIGERANT METERING DEVICE:
capillary tube
REFRIGERANT CHARGE (R 134 A)
Air cooled Water cooled
F 80C 300 gr 300 gr
F 125C 400 gr 300 gr
F 120 440 gr 400 gr
OPERATING PRESSURES
(With 21°C ambient temperature)
Discharge
pressure: 8÷9 bar 8÷5 bar
Suction
pressure: 0.5 bar 0.5 bar
REFRIGERANT CHARGE (R 404 A)
Air cooled Water cooled
F 200 660 gr 520 gr
SF 300 750 gr 600 gr
SF 500 880 gr 820 gr
SFN 1000 2400 gr 1200 gr
OPERATING PRESSURES
(With 21°C ambient temperature)
Discharge
pressure: 17÷18 bar 17 bar
Suction
pressure: 2.5 bar 2.5 bar
(2.4 bar for SFN 1000)
NOTA. Before charging the refrigerant system always check the type of refrigerant and quantity as
specified on the individual ice machine dataplate. The refrigerant charges indicated are relatives
to averages operating conditions.
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