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Stulz CRL 251 A User Manual

Stulz CRL 251 A
86 pages
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IT Cooling Solutions
Index G35
Issue 4.2016
CyberRow
Precision Air Conditioning Units
380-415 V / 3 Ph / 50 Hz
Original instructions
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Stulz CRL 251 A Specifications

General IconGeneral
Cooling Capacity25 kW
Airflow3, 400 m³/h
RefrigerantR410A
Sound Power Level68 dB(A)
Power Supply400V/3Ph/50Hz

Summary

Safety

Marking and Symbols

Symbols for danger, attention, information, and ESD note.

General Safety Instructions

Guidelines for installation, operation, and maintenance.

Handling Refrigerants Safely

Regulations and guidelines for safe handling of refrigerants.

Safety and Environmental Requirements

Requirements for operation, installation, and inspection within the EC.

Residual Risks

Risks During Transport, Installation, and Start-up

Identifies risks, causes, dangers, and safety notes for transport, installation, and start-up.

Product Description and Components

Control, Monitoring, and Safety Components

Information on safety devices, sensors, and transducers.

Technical Data and Specifications

Application Limits

Defines operational limits for temperature, humidity, and voltage.

Installation Procedures

Unit Positioning and Airflow

Recommendations for unit placement and airflow optimization.

Refrigerant Circuit Connection

Steps for connecting the refrigerant circuit to a remote condenser.

Water Connection Guidelines

Guidelines for connecting the chilled water circuit.

Electric Connections and Safety

Details on electrical connections, safety directives, and wiring.

System Start-up

Pre-Start Checks and Procedures

Essential checks before initial system start-up.

Maintenance Procedures

Maintenance Safety Instructions

Safety precautions and procedure instructions for maintenance.

Refrigerant Circuit Maintenance

Checks for refrigerant charge, purity, HP switch, sight glass, filter drier.

Malfunction Diagnosis and Resolution

Alarm Messages and Causes

Table listing alarm messages, their causes, and elimination steps.

Dismantling and Disposal

Unit Dismantling and Disposal Procedures

Procedures for safe dismantling and disposal of the unit and components.

Steam Humidifier Operation

Fault Elimination

Information on fault indication and troubleshooting for the humidifier.

Malfunction Lists

Detailed list of malfunctions, causes, and remedies for the humidifier.

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