EasyManua.ls Logo

Mitsubishi Heavy Industries SRK35MA-S User Manual

Mitsubishi Heavy Industries SRK35MA-S
122 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
- 1 -
Mitsubishi Heavy Industries Air Conditioners
Technical Manual
Manual Number: 2011 No. W2-01
Variable Frequency Wall Mounted Type
Room Air Conditioners
(Split system, heat pump type)
SRK20MA-S/SRC20MA-S
SRK25MA-S/SRC25MA-S
SRK35MA-S/SRC35MA-S
SRK50MA-S/SRC50MA-S
(R410A Refrigerant Used)
MITSUBISHI HEAVY INDUSTRIES, LTD.
Question and Answer IconNeed help?

Do you have a question about the Mitsubishi Heavy Industries SRK35MA-S and is the answer not in the manual?

Mitsubishi Heavy Industries SRK35MA-S Specifications

General IconGeneral
Cooling Capacity3.5 kW
Heating Capacity4.0 kW
Energy Efficiency Ratio (EER)3.21
Power Supply230V / 1ph / 50Hz
Indoor Unit Dimensions (W x H x D)800 x 290 x 215 mm
Outdoor Unit Dimensions (W x H x D)800 x 600 x 300 mm
Weight (Indoor Unit)9.5 kg
RefrigerantR410A
TypeSplit System
Energy Efficiency Ratio (Cooling)3.21 W/W
Noise Level (Outdoor Unit)50 dB

Summary

General Information

1.1 Features

Details key operational features and technological aspects of the air conditioner.

1.2 Model identification

Explains the system for identifying different models based on their codes and specifications.

Model Selection

2.1 Model function

Describes the operational capabilities and functions of the air conditioning models.

2.2 Range of usage

Specifies the environmental conditions within which the air conditioners are designed to operate safely.

2.3 Outline drawing

Provides detailed dimensional drawings and visual layouts of the indoor and outdoor units.

2.4 Cooling cycle system diagram

Illustrates the operational flow and components of the cooling and heating cycle.

2.5 Performance curve

Presents graphical data for correcting cooling and heating capacities based on operating conditions.

Electrical Wiring Diagram

3.1 Circuit diagram: 20, 25, 35MA-S

Displays the electrical circuit schematic for specific indoor and outdoor unit models.

3.2 Circuit diagram: 50MA-S

Displays the electrical circuit schematic for the 50MA-S model.

Parts and Functions

4.1 Name of each part

Identifies and labels the various components of the indoor and outdoor units.

4.2 Emergency switch

Explains how to use the emergency ON/OFF button for basic operation when the remote is unavailable.

4.3 Automatic restart due to power cut

Describes the function that restores the unit's previous operating state after a power interruption.

4.5 CLEAN operation

Details the self-cleaning function that runs the fan to dry moisture and inhibit mold growth.

4.6 SLEEP operation

Describes the mode that automatically regulates temperature for comfortable sleep and energy saving.

4.7 Timing OFF

Explains how to set the timer to automatically switch off the air conditioner after a specified period.

4.8 Timing ON

Explains how to set the timer to automatically switch on the air conditioner at a desired time.

4.11 HI POWER operation

Explains the mode that provides rapid cooling or heating for 15 minutes using maximum fan speed.

4.13 POWER SAVE operation

Details the function that reduces energy consumption by regulating compressor frequency and reducing current.

4.14 Air direction regulation

Explains how to adjust the vertical and horizontal flaps for optimal air distribution within the room.

4.17 Outline of automatic operation

Details how the system automatically selects the optimal operating mode based on temperature and humidity.

4.19 Outline of defrosting operation

Explains the conditions and process for the automatic defrosting cycle during heating operation.

4.22 Outline of compressor control

Explains the control mechanisms for the compressor's ON/OFF states and speed adjustments.

4.23 Outline of outdoor fan control

Details the control strategies and speed settings for the outdoor fan under various operating conditions.

4.24 Outline of indoor fan control

Explains the control logic and speed settings for the indoor fan across different modes and conditions.

Installation

Precautions for installation

Outlines essential safety warnings and precautions to be followed during the installation process.

5.1 Selection of installation location

Provides guidelines for choosing optimal locations for indoor and outdoor units to ensure proper function.

5.2 Installation of indoor unit

Details the procedures for mounting the indoor unit, including plate fixing and panel removal/installation.

5.3 Installation of outdoor unit

Outlines the steps for securely installing the outdoor unit and connecting electrical components.

5.4 Pipe connection

Describes the process of connecting refrigerant pipes, including preparation and flare nut procedures.

5.6 Standard running data

Lists standard operating data, including pressure, temperature differences, and current consumption for various models.

Maintenance

6.1 Electrical parts failure diagnosis method

Provides a systematic approach to diagnose electrical component failures and common error indications.

6.2 Servicing

Explains essential servicing procedures like evacuation and refrigerant charging for maintaining the system.

Outdoor Unit Checks

Check method for outdoor unit

Details diagnostic procedures and circuit diagrams for troubleshooting outdoor unit components.

Check method for outdoor circuit board (inverter)

Explains how to inspect the outdoor unit's circuit board and inverter for proper functioning.

Check method for EEV

Details the procedure for checking the electronic expansion valve (EEV) and its coil.

Check method for outdoor fan motor (DC motor)

Provides steps to check the outdoor fan motor and its circuit board for malfunctions.

R410A Refrigerant and Piping

7.1 Overview

Introduces R410A refrigerant, its environmental impact, and chemical properties compared to R22.

7.1.1 R410A Refrigerant

Provides information on the chemical properties, composition, and pressure characteristics of R410A refrigerant.

7.2 Mounting refrigerant pipes

Details the materials, procedures, and precautions for mounting refrigerant pipes using copper and specific joints.

7.2.1 Piping materials and joints used

Specifies the types of copper pipes, joints, and their suitability for R410A refrigerant.

7.2.2 Handling of piping materials

Offers guidance on the proper handling and storage of piping materials to prevent contamination and damage.

7.2.4 Welding

Explains the procedures and precautions for welding refrigerant pipes, including oxidation prevention.

7.3 Installation, Removal and Servicing

Covers essential tasks related to R410A system installation, removal, and servicing procedures.

7.3.1 Tools for R410A

Lists specialized tools required for installation and servicing of R410A systems, including applicability.

7.3.2 New installation (when new refrigerant piping is used)

Details the steps for new installation, including vacuum pump usage and refrigerant charging.

7.3.3 Removal (when new refrigerant piping is used)

Outlines procedures for removing the equipment, including refrigerant recovery and unit disconnection.

7.3.4 Replacing equipment (never use the existing refrigerant piping)

Stresses the importance of using new refrigerant piping when replacing equipment with R410A.

7.3.5 Refitting equipment

Warns against using R410A with equipment designed for conventional refrigerants to avoid malfunction.

7.3.6 Recharging refrigerant in servicing

Provides steps for correctly recharging refrigerant into the system during servicing.

7.4 Refrigerant recovery

Explains the general procedures and precautions for recovering refrigerant from the system.

7.4.1 Recovery procedure

Details the steps involved in the refrigerant recovery process, including checks and connections.

7.4.2 Accessories/tools

Lists necessary accessories and tools required for R410A refrigerant recovery operations.

Related product manuals