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100 Part Number STH098 06/19

REFRIGERATION DIAGNOSTIC PROCEDURE

1. Install and insulate a temperature lead on the

compressor suction line within 6” of the compressor.

2. Install and insulate a temperature lead on the

compressor discharge line within 6” of the

compressor.

3. All doors and panels must be in place during the

diagnostic procedure.

4. Refer to the “Cycle Times, 24 Hr. Ice Production and

Refrigerant Temperature Charts” on page 157 to

determine the correct operating temperature range

for your air and water temperature. Normal operating

temperatures will be within 10% of the data in the

charts.

5. Record the temperatures throughout the freeze and

harvest cycles.

NOTE: First cycle is not used for refrigeration system

diagnostics. Run a minimum of two cycles to allow the

system to stabilize and start recording temperatures three

minutes after the second cycle starts.

Recorded Temperature Chart

Discharge Line

Temp

Suction Line

Temp

Ice Fill Pattern Refer to

Diagnostics

for:

Low (20°F

[-7°C] or more)

Low 20°F (-7°C)

or more)

Less fill on the

outlet of the

evaporator

Expansion

Valve Flooding

Normal or

High

High 10°F

(-12°C) or

more)

Less fill on the

outlet and top

2 rows of the

evaporator

Low on

Refrigerant

or Expansion

Valve Starving

Normal Low 5°F (-15°C)

or less)

Less fill on the

outlet of the

evaporator

Refrigerant

Overcharge

Brand	Welbilt
Model	Manitowoc NEO UDP0080A
Category	Ice Maker
Language	English

Welbilt Manitowoc NEO UDP0080A User Manual

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Welbilt Manitowoc NEO UDP0080A Specifications

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