Midea RSJ-420/SZN1-H Technical Manual

Midea RSJ-420/SZN1-H Technical Manual

R410a direct heating commercial heat pump 50hz

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Midea R410A Direct Heating Type HPWH 50Hz Technical Manual
Direct Heating Commercial Heat Pump
Applicable Model:
RSJ-120/ZN1-540V1
RSJ-200/SZN1-540V1
RSJ-420/SZN1-H
RSJ-800/SZN1-H
Midea reserves the right to discontinue, or change specification or designs at any time without notices and
without incurring obligations.
Midea R410A
50Hz
Technical Manual
Midea CAC Confidential
MCAC-HTSM-201906
1

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Table of Contents
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Summarization of Contents

Part 1 General Information
Product lineup
Lists the various models and their power supply specifications.
External appearance
Provides visual details of the unit's design and outlook.
Nomenclature
Explains the model naming convention used in the manual.
Part 2 Performance
Features
Highlights the key capabilities and advantages of the heat pump units.
Specifications
Details technical specifications for each model, including electrical and physical data.
Dimensions
Presents the physical measurements of the heat pump units.
Service space
Specifies the required clearance around the unit for operation and maintenance.
Refrigerant circuit
Diagrams and explanations of the unit's refrigerant system.
Wiring diagrams
Electrical schematics showing unit connections for different models.
Main PCB descriptions
Identifies components and connections on the main control board.
Electrical characteristics
Summarizes key electrical data such as voltage, current, and power ratings.
Capacity table
Provides heating capacity and COP data under various operating conditions.
Accessories
Lists the items included with the unit for installation and operation.
Part 3 Installation
Safety information
Crucial safety precautions to prevent injury and damage during operation.
Unit installation
Guidelines and procedures for installing the heat pump unit.
Trial run
Steps for testing the unit's functionality after installation.
Fault analysis and solutions
Troubleshooting guide for common problems and error codes.
Maintenance
Procedures for regular upkeep to ensure optimal performance.
Part 4 Wired Controller
Specifications
Technical details of the wired controller's operating parameters.
Introduction of function buttons
Explains the purpose of each button and display icon on the controller.
Operation instruction
Guidance on using the controller for unit functions like timing and modes.
Installation
Instructions for physically mounting and connecting the wired controller.

Table of Contents