Mitsubishi Electric MXZ-4F80VGD

Need help?

Do you have a question about the Mitsubishi Electric MXZ-4F80VGD and is the answer not in the manual?

Overview

Function Description
Usage Features
Maintenance Features

This document serves as an installation manual for the Mitsubishi Electric Split-type Air-Conditioner models MXZ-4F80VGD and MXZ-5F100VGD. It is specifically intended for installers and covers the installation of the outdoor unit. For indoor unit installation, installers should refer to the respective indoor unit installation manual.

Function Description

The Mitsubishi Electric Split-type Air-Conditioner is designed to provide cooling and heating for indoor spaces. This manual focuses on the outdoor unit, which is a crucial component of the split-type system, responsible for heat exchange with the outside environment. The system utilizes a flammable refrigerant (R32), and strict adherence to safety guidelines is paramount to prevent the release of harmful gases or fire hazards. The unit features a demand response capability compliant with AS/NZS 4755.3.1, allowing it to be connected to a Demand Response Enabling Device (DRED) for energy management in conjunction with electric supply companies. It supports three Demand Response Modes (DRM1, DRM2, and DRM3).

The air conditioner also includes a function to lock the operation mode to either COOL/DRY or HEAT, ensuring it operates only in the selected mode. This feature is activated by setting a specific dip switch on the outdoor controller board. Additionally, the unit offers a function to lower its operating noise, particularly useful during nighttime in COOL mode, by reducing the operation load. However, activating this feature may lead to a decrease in cooling and heating capacity. A low standby power mode is also available, recommended when no indoor units from a specified list are connected to the outdoor unit, contributing to energy efficiency.

A key functional aspect is the wiring/piping correction function. This feature helps detect and correct incorrect wiring and piping combinations, simplifying the installation process. It operates by analyzing the connections and indicating the result via LED lights on the outdoor unit.

Usage Features

While this manual is primarily for installation, it touches upon features that impact the end-user experience. The operation mode locking and noise reduction functions are user-centric, allowing for customized comfort and reduced disturbance. Installers are advised to explain these functions to customers. The demand response capability, while managed externally, offers users potential benefits in energy cost management.

Maintenance Features

The manual emphasizes several aspects related to maintenance and safety during and after installation.

Refrigerant Management: It strictly warns against discharging refrigerant into the atmosphere and advises proper ventilation if leaks occur. For servicing, only the specified R32 refrigerant should be used, and mixing with other refrigerants or allowing air into the circuit is prohibited due to the risk of abnormal pressure rise, explosion, or system malfunction.
Leak Testing and Purging: Detailed procedures for purging the system of air and performing leak tests are provided. This involves using a vacuum pump and gauge manifold valve to ensure a vacuum is achieved and maintained, preventing air from contaminating the refrigerant circuit.
Pumping Down: A procedure for pumping down the system is outlined for when the air conditioner needs to be relocated or disposed of, ensuring no refrigerant is released into the atmosphere. This involves closing stop valves and operating the unit in emergency COOL mode to collect refrigerant in the outdoor unit.
Accessibility for Maintenance: The manual states that refrigerant pipe connections must be accessible for maintenance purposes, guiding installers to ensure future serviceability.
Electrical Safety: Electrical work must be performed by qualified electricians, using exclusive circuits and appropriate wiring. Secure connections and proper earthing are critical to prevent electric shock or fire. Earth leakage breakers are mandatory.
Physical Protection: Pipe-work must be protected from physical damage, and the installation of pipe-work should be kept to a minimum. The outdoor unit should be installed in a location that prevents small animals from entering and causing malfunctions or fire.
Installation Environment: Recommendations for installation locations include areas with good airflow, away from strong winds, direct sunshine, and sources of combustible gas. It also advises against installing the unit where it might annoy neighbors with operation sound or hot air. Specific clearances around the outdoor unit are detailed to ensure optimal performance and facilitate service access.
Regular Checks: After installation, installers are required to check for refrigerant gas leaks. The wiring/piping correction function serves as a diagnostic tool to ensure correct connections, which is a crucial part of initial setup and can be considered a maintenance-related feature for verifying system integrity.
User Instructions: Installers are instructed to explain the air conditioner's usage, including remote controller operation, filter removal, and cleaning, to the user, and to recommend reading the operating instructions carefully. This proactive approach helps users maintain the unit effectively.

Mitsubishi Electric MXZ-4F80VGD Specifications

General

Series	MXZ
Cooling Capacity	8.0 kW
Heating Capacity	9.0 kW
Power Supply	220-240 V
Voltage	220-240 V
Phase	1
Refrigerant	R410A
Number of Connectable Indoor Units	4
Type	Multi-Split
Cooling Capacity (BTU)	27300 BTU
Heating Capacity (BTU)	29000 BTU
Indoor Units Compatibility	Yes
Indoor Units	Compatible with various models
Operating Temperature (Cooling)	-10 ~ +46 °C
Operating Temperature (Heating)	-15 ~ +24 °C
Dimensions (Indoor Unit)	Varies depending on the connected indoor unit
Dimensions (Outdoor Unit)	900 x 320 x 700 mm
Weight (Indoor Unit)	Varies depending on the connected indoor unit