Mitsubishi Heavy Industries STM50ZF-S User Manual

This air conditioner complies with EMC Directive 89/336/EEC, LV
Directive 73/23/EEC.
RJH012A011.EN
ENGLISH
STM25ZE/ZF-S
STM35ZE/ZF-S
STM50ZE/ZF-S
STM60ZE/ZF-S
AIR-CONDITIONING & REFRIGERATION SYSTEMS HEADQUARTERS
16-5, 2-Chome, Kounan, Minato-ku, Tokyo, 108-8215, Japan
Fax: (03) 6716-5926
MITSUBISHI HEAVY INDUSTRIES EUROPE, LTD.
AIR-CONDITIONER DIVISION
3rd Floor Thavies Inn House 3-4 Holborn Circus London EC1N 2HA, ENGLAND
Phone: 44(0)20 7842 8171
Fax: 44(0)20 7842 8104
USER’S MANUAL
AIR-CONDITIONER
RJH012A011_Cover.pm 10/19/05, 1:34 PM1
Black

Mitsubishi Heavy Industries STM50ZF-S Specifications

General

Brand	Mitsubishi Heavy Industries
Model	STM50ZF-S
Category	Air Conditioner
Language	English

Summary

Safety Precautions

Installation Precautions

Precautions to be taken during the installation of the air conditioning system.

Operation Precautions

Precautions to be taken during the operation of the air conditioning system.

Precautions for Transfer or Repairs

Safety measures for moving or repairing the air conditioner unit.

Operations and Features

Choice of Operations

Overview of available operating modes like HEAT, COOL, DRY, and AUTO.

Key Features

Explains features like timers, high power, economy, and airflow adjustments.

Component Identification

Indoor Unit Components

Identifies and describes parts of the indoor air conditioner unit.

Outdoor Unit Components

Identifies and describes parts of the outdoor air conditioner unit.

Unit Controls and Indicators

Unit Indicators and Buttons

Explains the function of various lights and the ON/OFF button on the unit.

Remote Control Operations

Remote Control Operation Controls

Details buttons for fan speed, mode, power, timer, and temperature settings.

Remote Control Indication Lights

Explains the various indicators on the remote control, such as mode, fan speed, and timer lights.

Remote Control Signal Transmission

Describes how signals are transmitted from the remote control to the unit.

AUTO Mode Operation

AUTO Mode Procedure

Steps for selecting and operating the automatic mode based on room temperature.

Temperature Adjustment in AUTO Mode

How to adjust the temperature while the unit is in AUTO mode.

Standard Operation Modes

COOL, HEAT, DRY Mode Procedure

Steps for operating the unit in COOL, HEAT, or DRY modes.

High Power Operation

Details on using the HIGH POWER mode for intensified cooling or heating.

Economy Operation

Explanation of the ECONOMY mode for energy-saving operation.

Airflow and Fan Speed Control

Airflow Direction Adjustment

How to adjust the direction of the airflow using the remote control.

Fan Speed Settings

Options for setting the fan speed for cooling or heating.

Timer Operations

Off-Timer Procedure

Steps to set the timer for the unit to automatically stop.

On-Timer Procedure

Steps to set the timer for the unit to automatically start.

Advanced Timer and System Settings

Program Timer Setup

How to set both ON and OFF timers for daily automatic operation.

Present Time Setting

Procedure for setting the current time on the remote control.

Emergency and Remote Control Handling

Emergency Operation

How to operate the unit manually when the remote control is unavailable.

Remote Control Battery Replacement

Instructions for replacing the batteries in the remote control.

Remote Control Holder Usage

Guidance on installing and using the remote control holder.

Remote Control Care and Operation Tips

Remote Control Handling Warnings

Important warnings for handling the remote control to prevent damage.

Remote Operation Failure

Troubleshooting steps when the remote control operation fails.

Operating Hints for Efficiency

Tips for economical and comfortable use of the air conditioner.

Air Conditioner Maintenance

Pre-Maintenance Checks

Actions to take before performing any maintenance on the unit.

Air Filter Cleaning

Instructions and notes regarding cleaning the air filter for optimal performance.

End of Season Maintenance

Steps for proper maintenance at the end of the operating season.

Beginning of Season Maintenance

Steps for preparing the unit at the beginning of the operating season.

Installation and System Operation

Correct Installation Checks

Verifies proper installation aspects and potential issues.

Operating Noise Considerations

Advice on managing operating noise and vibrations.

Multiple Air-Conditioner Operation

Explains operation when multiple indoor units are connected.

Troubleshooting Common Issues

Unit Not Working

Checks to perform if the air conditioner does not operate at all.

Cooling/Heating Performance Issues

Diagnosing problems related to poor cooling or heating performance.

Important Operational Notes

Key points to remember about unit operation, like restart delays.

Operating Conditions and Features

Operating Condition Ranges

Specifies the recommended temperature and humidity ranges for operation.

Power Blackout Restart

Explains the auto-restart function after a power failure.

Heat Mode Characteristics

Details on how the HEAT mode functions, including defrosting.

Self-Diagnosis Function

Troubleshooting by Light Indicators

Interpreting light patterns on the unit for diagnosing malfunctions.