IDT1900A251E User Manual

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72 Part Number: 000015430 Rev 02 5/20

REMOTE CONDENSER

NOTE: The On/Off button must be depressed and the

water curtain/ice dampers must be in place on the

evaporator before the ice machine will start.

Initial Start-Up or Start-Up After Automatic Shut-Off

1. Water Purge

Before the compressor starts, the water pump and water

dump solenoid are energized for 45 seconds, to completely

purge the ice machine of old water. This feature ensures

that the ice making cycle starts with fresh water.

2. Refrigeration System Equalization and Start-Up

The harvest valve, air pump(s) and harvest pressure

regulating (HPR) solenoid valves energize to equalize high

and low side refrigeration pressure.

After 5 seconds the liquid line solenoid valve energizes and

the contactor energizes the compressor and condenser fan

motor.

Freeze Sequence

3. Prechill

The compressor is on for 30 seconds (120 seconds initial

cycle) to lower the temperature of the evaporator(s)

before the water pump is energized. The water fill valve

will energize and remain on until water touches the low

and high water level probes.

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Manitowoc IDT1900A251E IDT1900A-251E 48" Indigo NXT Series Air Cooled Modular Ice Machine with 1805 lbs. Daily Ice Production, easyTouch Display, Acoustical Ice Sensing Probe and Active Sen