FRIULAIR CWE Series - User Manual

Other manuals for FRIULAIR CWE Series

User And Maintenance Manual43 pages

Questions and Answers

K
Kimberly PrinceAug 14, 2025
Why won't the compressor start in my FRIULAIR CWE Chiller?
- N
  Natalie RuizAug 14, 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.
W
Whitney CookNov 3, 2025
What to do if my FRIULAIR CWE Chiller unit does not start?
- M
  Monica SmithNov 3, 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...
K
Kathryn ProctorNov 21, 2025
How to fix a FRIULAIR CWE Chiller that won't start?
- R
  Renee StantonNov 22, 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

Series Overview and Components

Frame and Cabinet Covering

Describes the frame and cabinet covering, made from galvanized steel, powder coated for outdoor use.

Unit Components

Refrigerant Gas, Compressors, Condensers

Covers refrigerant gas, compressors, condensers, and their key features.

Evaporator and Refrigerant Circuit

Evaporator Features

Describes the brazed stainless steel plates evaporator, its separation, and anti-freeze function.

Refrigerant Circuit Details

Details the composition of the refrigerant circuit with quality materials and compliance with directive 97/23.

Pumps, Tanks, and Control Devices

Circulation Pumps and Tank

Discusses the optional multistage centrifugal pump and available water tank options.

Safety, Control, and Operation

Safety and Control Devices

Lists various safety and control devices like temperature probes, pressure switches, and phase sequence control.

Control Panel

Describes the control panel complying with EN 60204 CE, including disconnector and internal components.

Microprocessor Controller

Testing, Handling, and Options

Controls and Testing

Details the tests performed on each unit, including full load acceptance tests and leak searches.

Handling

Describes how the machines are packaged on pallets for easy handling with forklifts.

Optional Components

Technical Data CWE

CWE Models 013-141

Comprehensive technical specifications for all CWE models, covering capacity, power, dimensions, etc.

Technical Data HWE

HWE Models 013-111

Comprehensive technical specifications for all HWE models, covering capacity, power, dimensions, etc.

Performance Data CWE

CWE Models Performance Data

Performance data (cooling/power) for CWE models across various operating conditions.

Performance Data HWE

HWE Models Performance Data

Performance data (cooling/heating/power) for HWE models across various operating conditions.

Correction Factors

Cooling Capacity Correction

Explains how to correct cooling capacity based on glycol percentage and temperature differences.

Liquid Flow Correction

Details how to recalculate liquid flow based on corrected cooling capacity and glycol presence.

Water Available Pressure and Evaporator Pressure Drop Graphs

CWE;HWE Model Graphs

Graphs showing available pressure and evaporator pressure drop vs. water flow for various CWE/HWE models.

Working Limits

Installation Clearance

Dimensional Drawings

CWE;HWE Model Dimensions

Dimensional drawings for various CWE/HWE model ranges, showing overall dimensions and connection points.

FRIULAIR CWE Series Specifications

General

Refrigerant	R410A
Power Supply	400V/3Ph/50Hz
Compressor Type	Scroll
Pump Type	Centrifugal
Dimensions	Varies depending on the model
Weight	Varies depending on the model