Midea RSJ-420/SZN1-H User Manual

Midea R410A Direct Heating Type HPWH 50Hz Technical Manual MCAC-HTSM-201906
1
Midea R410A
Direct Heating Commercial Heat Pump
50Hz
Technical Manual
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 CAC Confidential

Midea RSJ-420/SZN1-H Specifications

General

Model	RSJ-420/SZN1-H
Refrigerant	R410A
Type	Heat Pump
Cooling Capacity	12.3 kW
Power Supply	220-240V, 50Hz
Operating Temperature Range (Heating)	-20°C to 24°C

Summary

Part 2 Performance

Key Unit Features and Benefits

Technical Specifications by Model

Provides detailed technical data for each model, including dimensions and electricals.

Electrical Wiring Diagrams

Main Control Board (PCB) Layout

Electrical Specifications and Ratings

Lists critical electrical parameters such as voltage, current, and power ratings.

Performance Capacity and COP Tables

Presents performance data (capacity and COP) under various operating conditions.

Part 3 Installation

Essential Safety Precautions

Outlines essential safety precautions to prevent injury and damage during operation.

General Unit Installation Guidelines

Covers general procedures for installing the unit, including mounting and connections.

Post-Installation Trial Run Procedures

Troubleshooting Common Faults and Errors

Provides guidance on diagnosing and resolving common operational issues and errors.