MrCool U-match MDUI18036 Service Manual

MrCool U-match MDUI18036 Service Manual

Dc inverter u-match series for r410a unitary split air conditioner

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DC Inverter U-match Series for R410A
Unitary Split Air Conditioner SERVICE
MANUAL
Capacity: 24kBtu/h~60kBtu/h
Rate Frequency: 60Hz
Operation Range:
Cooling: 5°F(-15°C)~129.2℉(54℃)
Heating: -22°F (-30°C)~75.2°F (24°C)
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Summarization of Contents

Safety Guidelines
Maintenance Safety Precautions
Critical safety rules and prohibitions to observe during maintenance tasks.
Operation Safety Precautions
Essential safety guidelines for the correct and safe operation of the unit.
Product Specifications
Unit Model Listings
Catalog of available outdoor and indoor unit models with their key specifications.
Electrical Parameter Details
Information on power supply requirements, fuse, and circuit breaker capacities.
System Operation Control
Operational Modes Description
Explains cooling and heating modes with operational flowcharts.
Control Mode Explanations
Details on compressor, fan, valve control, and special operational modes.
Functional Settings
Guides for setting dial codes for capacity, defrost, and operating modes.
Troubleshooting and Error Codes
Wiring Diagrams
Electrical schematics for ODUS and IDUs to aid in diagnosis.
Error Code Directory
Comprehensive list of error codes and their associated malfunctions.
Specific Error Troubleshooting
Step-by-step procedures for resolving common errors like E1 (High Pressure).
Maintenance and Servicing
Refrigeration System Diagram
Schematic of the air conditioner's refrigeration circuit for understanding.
Vacuum Pumping & Refrigerant Charging
Instructions for system evacuation and correct refrigerant addition.
Major Component Replacement
Procedures for replacing key components such as the compressor and thermostat.
Component Disassembly
Outdoor Unit Component Removal
Detailed steps for safely removing major parts from the outdoor unit.
Indoor Unit Component Removal
Detailed steps for safely removing major parts from the indoor unit.
Parts Identification
ODU Exploded Views & Parts
Illustrated breakdown of outdoor unit parts with material names.
IDU Exploded Views & Parts
Illustrated breakdown of indoor unit parts with material names.
Reference Appendices
Temperature Sensor Data Tables
Resistance and voltage values for temperature sensors across a range.
Refrigerant Property Charts
Tables correlating R410A refrigerant temperature and pressure.

Table of Contents