CLIVET MR-DX 41 User Manual

C. Art. M24D40G3-03 G4D2GB-33
DIRECT EXPANSION
CLOSE CONTROL UNIT WITH
REMOTE CONDENSER
MR-DX 17-25-31-41-61-71-81
INSTALLATION,
OPERATION AND
MAINTENANCE MANUAL
GENERAL
THIS MANUAL CONTAINS THE FOLLOWING SECTIONS WHICH ARE TO BE CONSIDERED AN INTEGRAL PART
OF THE WHOLE AND ARE THEREFORE NOT TO BE DETACHED
G4D2GB-3 R4D2GB-3 E4D2GB-3 F4D2GB-3 C4D2GB-3
General Information Reception Electrical connections Start-up Controls
M4D2GB-3 L4D2GB-3 P4D2GB-3 N4D2GB-3 K4D2GB-3
Routine maintenance Water connections Refrigerant pipes Air filters
Residual risks
IMPORTANT
The contents of this manual are designed to assure the
correct installation, adjustment and maintenance of the unit;
therefore:
- read the instructions with due care and attention;
- the appliance must be installed, tested and serviced by
properly qualified personnel (law n.45, 5.3.1990) licensed in
accordance with established legislation.
• The manufacturer declines all liability, and guarantee
coverage is automatically waived, if electrical and/or
mechanical modifications are made to the unit. Tampering
and unauthorized repairs or modifications to the unit will
automatically void the guarantee.
• Observe the safety regulations in force at the time of
installation.
• Make sure that the characteristics of the mains network
conform to the data on the serial number plate inside the
electrical panel.
• Conserve this manual and the circuit diagram with care.
Make sure that they are available for consultation by the
operator whenever necessary.
• Packing materials (plastic wrappings, expanded polystyrene,
nails, etc.) are potentially hazardous and must be kept out of
reach of children. Recycle packing materials in accordance
with local bylaws.
• The water chiller must be used only for the purpose for
which it is designed. The manufacturer bears no responsibility
in the case of applications other than the specified use.
• Disconnect the unit in the case of breakdowns or
malfunctions.
• If repairs are necessary use only Clivet-approved service
centres and always insist on original spare parts.
The use of non-original parts and/or unauthorized service
centres may result in unsafe operation of the unit.
The manufacturer declines all liability for direct or indirect damage to property or injury
to persons resulting from failure to adhere to the instructions in this manual.
ADDITIONAL SAFETY PRECAUTIONS
This unit has been especially designed and manufactured so to prevent any risk to persons and health hazard.
For this reason, design solutions fit to eliminate (where possible) any cause of risk and sensibly reduce the probability of
danger have been adopted.
Please refer to the Residual risks section of this manual and strictly observe the behaviour prescriptions listed there in
order to prevent any possible risk that hasn’t been possible to avoid in the design stage.

CLIVET MR-DX 41 Specifications

General

Brand	CLIVET
Model	MR-DX 41
Category	Control Unit
Language	English

Summary

GENERAL

Important Safety Information

General advice and warnings for unit operation and maintenance.

Additional Safety Precautions

Specific safety measures to observe for risk prevention.

RECEPTION AND HANDLING

Inspection and Handling Procedures

Checking unit delivery, weight, and safe handling instructions.

HANDLING, STORAGE, AND PACKING REMOVAL

Hoisting, Storage, and Packing Removal

Procedures for moving, storing, and unpacking the unit.

ROUTINE MAINTENANCE

Unit Component Maintenance

Checks for unit, water system, electrical, and ducting.

HUMIDIFIER MAINTENANCE

Humidifier Component Checks and Cylinder Replacement

Annual checks and procedure for replacing the steam cylinder.

START-UP PROCEDURE

Preliminary Checks and Warnings

Essential checks and safety warnings before unit start-up.

Unit Start-Up Process

Step-by-step guide to starting the unit.

UNIT OPERATION MODES

Unit Start-Up, Stop, and Interface Usage

Procedures for starting, stopping, and setting the unit's interface.

CONTROLS AND INTERFACE

Display and Keypad Operation

How to use the unit's control interface, including display and keypad.

PARAMETER SETTINGS

Modifying and Reading Parameters

Procedures for adjusting and viewing unit parameters.

Control Parameter Details

In-depth explanation of temperature and humidity control parameters.

ALARMS AND SIGNALS

Alarm Handling, Reset, and Shut-Down Signals

Procedures for managing and responding to unit alarms.

ADVANCED FEATURES AND CONNECTIONS

Clock, Time Bands, Alarm Log, and Serial Communication

Time scheduling, alarm history, and serial communication options.

AIR FILTERS

Filter Cleaning Safety Warning

Important safety notice before performing filter maintenance.

FILTER REMOVAL AND WASHING

Filter Handling and Installation Instructions

Procedure for filter maintenance and correct installation.

ELECTRICAL CONNECTION

Electrical Panel and Mains Power Connection

Accessing the electrical panel and connecting the mains power supply.

Electrical Safety and Wiring Diagram Reference

Crucial safety notes and reference to wiring diagrams.

REFRIGERANT PIPES

Pipe Sizing and Resistance Tables

Tables for selecting pipe diameters and calculating equivalent resistance.

REFRIGERANT PIPE INSTALLATION

Pipe Installation Considerations and Best Practices

Important advice for proper refrigerant pipe installation.

RESIDUAL RISKS

Dangerous Area Definition and Illustration

Identifying and illustrating hazardous zones around the unit.

GENERAL RISKS AND COOLANT SAFETY

Risk Assessment and Safety Instructions

Identifying dangers, modalities, and providing instructions for various areas.

Coolant Safety Information

Safety data and measures related to refrigerants.

SUBSTANCE SAFETY INFORMATION

Handling, Storage, Exposure Controls, and Properties

Precautions for use, storage, and physical characteristics.

STANDARD UNIT SPECIFICATIONS AND ACCESSORIES

Unit Components Specifications

Detailed specifications for unit parts like compressor, exchanger, fan, and paneling.

CONDENSER MATCHING TABLES (SINGLE CIRCUIT)

CONDENSER MATCHING TABLES (DOUBLE CIRCUIT)

Matching Tables by Temperature

Tables for matching double circuit units at different temperatures.

GENERAL TECHNICAL SPECIFICATIONS

Cooling, Compressor, and Exchanger Specs

Core technical data for cooling capacity, compressor, and internal exchanger.

MR-DX CLOSE CONTROL UNIT OVERVIEW

Product Description and Features

COOLING PERFORMANCE DATA

Cooling Capacity Tables

OPERATING LIMITS AND CONDENSER MATCHING

Cooling Operating Limits

Condenser Matching Tables