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FRIULAIR CWE 036 - User Manual

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7425MTC044_ManTec_CWE_Rev03_DE_EN.doc
CWE/HWE
Wasserkühler und Wärmepumpe
Water chillers and heat pumps
Luftgekühlte Wasserkühler und Wärmepumpe
Kühlleistung von 13 bis 141 kW, Scrollkompressoren
Kühlmittel R410A
Air cooled water chillers - Air to water heat pumps
Cooling capacity from 13 to 141 kW, scroll compressors
R410A refrigerant

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Questions and Answers

  • M
    Michelle RiveraAug 19, 2025
    Why won't the compressor start in my FRIULAIR CWE 036?
    • E
      ewhiteheadAug 19, 2025
      If the compressor in your FRIULAIR Chiller isn't starting, here are a few things to check: * If the thermal protection inside the compressor activated, wait for it to cool down and ensure the compressor is working under normal conditions. Also, check for insufficient refrigerant. * Examine the compressor contactor. Verify the voltage at the coil and the coil's continuity. * If the phase-sequence relay intervened, reverse the two phases upstream from the unit's electrical panel cut-off switch. * If the magnetothermic protection of the compressors opened, look for short circuits in the motor windings. Check for over-absorption of current due to low voltage, and verify the power supply voltage and operating conditions.
  • F
    Frank VelazquezNov 8, 2025
    What to do if my FRIULAIR CWE 036 Chiller unit does not start?
    • T
      tony88Nov 8, 2025
      If your FRIULAIR Chiller unit doesn't start, consider these potential causes and solutions: * Ensure the contacts of the main differential switch and the unit's electrical panel cut-off switch are closed. * Verify the I/O/REM switch is in the 'I' position. * Check the pump's functionality and vent the plumbings if there's no consent from the water differential switch. * Wait 3 minutes if the compressor timer is active. * Apply a thermal load or lower the set point if there's no consent from the service thermostat. * Reset the water temperature to be compatible with the anti-freeze thermostat calibration if there's no consent from it. * Inspect and replace defective service, anti-freeze, or entering water temperature probes. * Investigate for current dispersion inside the m...
  • S
    Susan HernandezNov 27, 2025
    How to fix a FRIULAIR Chiller that won't start?
    • A
      Alexander HallNov 27, 2025
      If your FRIULAIR Chiller isn't starting, the issue could stem from several causes. Begin by ensuring that the contacts of both the main differential switch and the unit's electrical panel cut-off switch are closed. Next, check that the I/O/REM switch is set to the 'I' position. If these aren't the problem, verify the pump is working correctly and vent the plumbings to address potential issues with the water differential switch. Also, allow three minutes for the compressor timer to complete its cycle. If the issue persists, check the service and anti-freeze thermostats, adjusting the thermal load or set point as needed. Finally, inspect the service, anti-freeze, and entering water temperature probes for any defects, and replace them if necessary. If the main differential switch intervened, ...

Summary

Introduction to the CWE;HWE Series

Series Overview and Key Components

General overview of the CWE/HWE series, including frame, refrigerant, compressors, condensers, fans, and evaporators.

Refrigerant Circuit and Auxiliaries

Details on refrigerant circuit, circulation pumps, and optional tanks.

Control Systems and Safety Features

Safety and Control Devices Description

Covers sensors, switches, transducers, and panel for safe and controlled operation.

Microprocessor Controller Functions

Explains the controller's role in regulating temperature, managing cycles, and alarms.

Testing, Handling, and Data

Unit Testing and Handling Procedures

Procedures for unit testing, handling, and information on optional components.

Technical and Performance Data Tables

Comprehensive technical specs and performance data for CWE and HWE models.

Correction Factor Calculations

Guidance on adjusting performance based on glycol presence and temperature differences.

Operating Parameters and Installation

Performance Graphs and Working Limits

Graphs for water pressure/drop and defined operating limits for the units.

Installation Clearance and Dimensions

Specifies installation clearance and provides dimensional drawings for unit placement.

FRIULAIR CWE 036 Specifications

General IconGeneral
BrandFRIULAIR
ModelCWE 036
CategoryChiller
LanguageEnglish

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