NG DP
TECHNICAL SERVICE MANUAL
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1.2. Descripción
Main Features of the Machine
Stainless steel body AISI 304 and chapa galvanizada.
Anti-blocking spray nozzles.
Pump without seals.
High pressure safety pressostats even in air-cooled machine.
Large condensers (work well at high ambient temperatures; and reduce cooling water
consumption in water-cooled machines).
TRANSPARENT CUBES with most of the water mains.
ALFA CUBE GALA CUBE DELTA CUBE SUPER STAR CUBE
1.3. Operating principle
WHEN SWITCHING ON THE MACHINE FOR THE FIRST TIME, THE MACHINE SHOULD BE
PLACED ON THE DEFROSTING STAGE. To do so, turn the wheels on the timer until the
microswitches are depressed.
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At this moment, the compressor is working; the water inlet valve and hot gas inlet valve are
both open. The water bin fills with water, any excess is lost via the maximum level overflow.
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After a period of time controlled by the timer the hot gas valve and water inlet valve are closed.
The pump then sends water to the evaporator where the ices cubes are gradually formed. The
evaporation temperature slowly descends until it reaches a point where the cycle thermostat is
connected and starts the timer. Once this time has elapsed, the defrosting stage (3-4 minutes)
begins. The pump is off and the hot gas and water valves are open. Some water is sent to the
top of the evaporator to help the cubes unstick.
