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Eliwell EW971 User Manual

Eliwell EW971
23 pages
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ENGLISH
EN
Electronic controllers for refrigeration units
EW961/971/974
set
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Eliwell EW971 Specifications

General IconGeneral
ModelEW971
Frequency50/60 Hz
TypeController
Input TypeNTC, PTC
Output TypeRelay
Resolution0.1°C
Accuracy±0.5%
BuzzerYes
Output RelaySPDT 250 V AC

Summary

Device Controls and Indicators

Menu Navigation and Access

Setting the Set point

Displays and modifies the target temperature value.

Programming Menu and Password

Programming Menu Password

Manages access levels to parameters using passwords PA1 and PA2.

Alarm Types and Diagnostics

Probe Fault Alarms (E1, E2)

Indicates malfunctions with the primary or secondary temperature probes.

Temperature Alarms (AH1, AL1)

Signals when probe readings exceed high or low temperature thresholds.

Operational Features and Installation

Electrical Wiring

Instructions and precautions for connecting electrical components.

Compressor Parameters

SEt

Sets the primary temperature setpoint for the controller.

Compressor Parameters

Settings related to compressor operation, timing, and protection.

Defrost and Evaporator Fan Parameters

Defrost Parameters

Settings for defrost cycle type, interval, and duration.

Evaporator Fan Parameters

Settings for evaporator fan operation and behavior.

Alarm, Communication, and Display Parameters

Configuration Parameters

General Configuration

Settings for device behavior and inputs.

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