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Midea MRC-300HWN1-RC User Manual

Midea MRC-300HWN1-RC
168 pages
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Content
Part. 1 General information ........................................................ 2
Part. 2 Performances .................................................................. 5
Part. 3 Installations ................................................................. 104
Part. 4 Controller ..................................................................... 130
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Midea MRC-300HWN1-RC Specifications

General IconGeneral
RefrigerantR410A
Remote ControlYes
Washable FilterYes
Cooling Capacity30000 BTU
Voltage230V
Operating ModesCool, Fan, Auto

Summary

Part 1 General Information

Product Lineup Overview

Details product models, specifications, functions, and power supply information for various capacities.

External Appearance Details

Presents visual representations and dimensions of the unit's external design for different tonnage models.

Model Nomenclature Explanation

Explains the product coding system, detailing each component of the model name for clarity.

Part 2 Performances

Key Unit Features

Highlights unit features like design flexibility, durable construction, reliable compressors, and multi-protection systems.

Technical Specifications

Provides detailed specifications for cooling, heating, electrical, compressor, fan, and coil data for each model.

Dimensions and Drawings

Offers detailed dimensional drawings (mm) for various unit models, essential for installation planning and space assessment.

Wiring Diagrams

Illustrates electrical wiring schematics for different models, showing component connections, power supply, and control signals.

Performance Data Tables

Contains comprehensive tables of cooling and heating capacity data across various operating temperatures and conditions.

Electrical Data Summary

Summarizes electrical parameters including power supply, compressor, fan motor ratings, fuses, and current values.

Fan Performance Details

Presents fan performance data (speed, power input, air flow) at different static pressures for specific models and speeds.

Refrigerant Cycle Diagram

Illustrates the refrigerant flow paths and key components like compressors, heat exchangers, and switches for unit operation.

Operating Temperature Limits

Defines the operational temperature ranges for cooling and heating modes, crucial for optimal system performance and safety.

Noise Criteria (NC) Curves

Presents noise level (LZeq dB) curves as a function of frequency (Hz) for different fan speeds and models.

Included Accessories

Lists essential accessories provided with the unit, such as user manuals, drain outlets, snap rings, and wired controllers.

Part 3 Installations

Installation General Information

Provides critical warnings and cautions regarding safe installation procedures and potential hazards to personnel and equipment.

Installation Recommendations

Offers guidance on horizontal airflow application and recommended clearances for optimal unit placement and performance.

Unit Lifting Procedures

Details safe lifting procedures, rigging requirements, and precautions to prevent accidents during unit handling.

Installation Guidelines

Explains installation steps for rooftop and ground-level applications, including frame, duct, and insulation requirements.

Condensate Drainage Specifications

Describes the condensate drainage system and provides specific X values (in mm) for different unit models.

Duct Work Guidelines

Provides guidelines for insulating and weatherproofing ductwork to minimize losses and noise transmission.

Electrical Wiring Requirements

Outlines electrical wiring safety warnings, national regulations, and wiring provisions for proper unit installation.

Unit Start-up Procedures

Details pre-start checks, voltage verification, and system readiness steps before initial unit operation.

Safety Control Functions

Explains safety features like compressor start-up delays, discharge temperature protection, phase protection, and pressure controls.

Regular Maintenance Schedule

Provides a schedule for periodic maintenance, including filter checks, belt tension, and system component inspections.

Temperature Sensor Data

Lists the resistance values (KΩ) of the temperature sensor at various temperatures (°C) for reference.

Part 4 Controller

Wired Controller KJR-12B Specifications

Details specifications, indicators, button functions, and operation modes for the KJR-12B wired controller.

Wired Controller KJR-25B Operation

Explains specifications, button functions, configuration options, and operating modes for the KJR-25B wired controller.

Centralized Controller MD-CCM03(A)

Describes the specifications, keypad, operation instructions, and display features of the optional centralized controller.

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