Mitsubishi Electronics PCA-A.KA4 installation manual Contents, Safety precautions

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Contents

1.

Safety precautions

2

5.

Drainage piping work

6

2.

Installation location

3

6.

Electrical work

6

3.

Installing the indoor unit

3

7.

Test run

10

4.

Installing the refrigerant piping

5

8.

Easy maintenance function (For wired remote controller only)

12

1. Safety precautions

►Before installing the unit, make sure you read all the “Safety precau- tions”.

►Please report to your supply authority or obtain their consent before connecting this equipment to the power supply system.

Warning:

Describes precautions that must be observed to prevent danger of injury or death to the user.

Caution:

Describes precautions that must be observed to prevent damage to the unit.

After installation work has been completed, explain the “Safety Precautions,” use, and maintenance of the unit to the customer according to the information in the Operation Manual and perform the test run to ensure normal operation. Both the Installation Manual and Operation Manual must be given to the user for keeping. These manuals must be passed on to subsequent users.

:Indicates a part which must be grounded.

Warning:

Carefully read the labels affixed to the main unit.

Warning:

•Ask a dealer or an authorized technician to install the unit.

•For installation work, follow the instructions in the Installation Manual and use tools and pipe components specifically made for use with refrigerant specified in the outdoor unit installation manual.

•The unit must be installed according to the instructions in order to mini- mize the risk of damage from earthquakes, typhoons, or strong winds. An incorrectly installed unit may fall down and cause damage or injuries.

•The unit must be securely installed on a structure that can sustain its weight.

•If the air conditioner is installed in a small room, measures must be taken to prevent the refrigerant concentration in the room from exceeding the safety limit in the event of refrigerant leakage. Should the refrigerant leak and cause the concentration limit to be exceeded, hazards due to lack of oxygen in the room may result.

•Ventilate the room if refrigerant leaks during operation. If refrigerant comes into contact with a flame, poisonous gases will be released.

•All electric work must be performed by a qualified technician according to local regulations and the instructions given in this manual.

•Use only specified cables for wiring.

•The terminal block cover panel of the unit must be firmly attached.

•Use only accessories authorized by Mitsubishi Electric and ask a dealer or an authorized technician to install them.

•The user should never attempt to repair the unit or transfer it to another location.

•After installation has been completed, check for refrigerant leaks. If refrig- erant leaks into the room and comes into contact with the flame of a heater or portable cooking range, poisonous gases will be released.

1.1.Before installation (Environment)

Caution:

•Do not use the unit in an unusual environment. If the air conditioner is in- stalled in areas exposed to steam, volatile oil (including machine oil), or sulfu- ric gas, areas exposed to high salt content such as the seaside, the perform- ance can be significantly reduced and the internal parts can be damaged.

•Do not install the unit where combustible gases may leak, be produced, flow, or accumulate. If combustible gas accumulates around the unit, fire or explosion may result.

•Do not keep food, plants, caged pets, artwork, or precision instruments in the direct airflow of the indoor unit or too close to the unit, as these items can be damaged by temperature changes or dripping water.

•When the room humidity exceeds 80% or when the drainpipe is clogged, water may drip from the indoor unit. Do not install the indoor unit where such dripping can cause damage.

•When installing the unit in a hospital or communications office, be pre- pared for noise and electronic interference. Inverters, home appliances, high-frequency medical equipment, and radio communications equipment can cause the air conditioner to malfunction or breakdown. The air con- ditioner may also affect medical equipment, disturbing medical care, and communications equipment, harming the screen display quality.

1.2.Before installation or relocation

Caution:

•Be extremely careful when transporting the units. Two or more persons are needed to handle the unit, as it weighs 20 kg, 44 lbs or more. Do not grasp the packaging bands. Wear protective gloves as you can injure your hands on the fins or other parts.

•Be sure to safely dispose of the packaging materials. Packaging materials, such as nails and other metal or wooden parts may cause stabs or other injuries.

•Thermal insulation of the refrigerant pipe is necessary to prevent condensa- tion. If the refrigerant pipe is not properly insulated, condensation will be formed.

•Place thermal insulation on the pipes to prevent condensation. If the drain- pipe is installed incorrectly, water leakage and damage to the ceiling, floor, furniture, or other possessions may result.

•Do not clean the air conditioner unit with water. Electric shock may result.

•Tighten all flare nuts to specification using a torque wrench. If tightened too much, the flare nut can break after an extended period.

1.3.Before electric work

Caution:

•Be sure to install circuit breakers. If not installed, electric shock may result.

•For the power lines, use standard cables of sufficient capacity. Otherwise, a short circuit, overheating, or fire may result.

•When installing the power lines, do not apply tension to the cables.

•Be sure to ground the unit. If the unit is not properly grounded, electric shock may result.

•Use circuit breakers (ground fault interrupter, isolating switch (+B fuse), and molded case circuit breaker) with the specified capacity. If the circuit breaker capacity is larger than the specified capacity, breakdown or fire may result.

1.4.Before starting the test run

Caution:

•Turn on the main power switch more than 12 hours before starting opera- tion. Starting operation just after turning on the power switch can severely damage the internal parts.

•Before starting operation, check that all panels, guards and other protec- tive parts are correctly installed. Rotating, hot, or high voltage parts can cause injuries.

•Do not operate the air conditioner without the air filter set in place. If the air filter is not installed, dust may accumulate and breakdown may result.

•Do not touch any switch with wet hands. Electric shock may result.

•Do not touch the refrigerant pipes with bare hands during operation.

•After stopping operation, be sure to wait at least five minutes before turn- ing off the main power switch. Otherwise, water leakage or breakdown may result.

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Contents Air-Conditioners Contents Safety precautionsInstallation location Installing the indoor unitFresh air intake hole Fig Installing the indoor unit FigDirectly suspending the unit Installing procedures Indoor unit preparation FigConnecting pipes Fig Installing the refrigerant pipingPrecautions Indoor unit FigDrainage piping work Electric wiringInstalling procedures Fig Electrical workWired remote controllers setting Remote controllerFor wired remote controller Installation area Function settingsFor IR wireless remote controller Setting -3 Insert batteriesSetting column of the Function table For IR wireless remote controller FigOr maintenance, be sure to record the changes with a mark Function tableTest run Test runBefore test run Self-checkPlease Wait Stable operation Easy maintenance function For wired remote controller onlyDisplay example Comp discharge temperature 147˚F Index Consignes de sécuritéDimensions externes Appareil intérieur Fig Emplacement pour l’installationInstallation de l’appareil intérieur Dimensions extérieures Appareil extérieurEntrée d’air frais Fig Installation de l’appareil intérieur FigSuspendre l’appareil directement Méthodes d’installation 5. Préparation de l’appareil intérieur FigConnexion des tuyaux Fig Installation de la tuyauterie du réfrigérantConsignes Appareil intérieur FigMéthodes d’installation Fig Installations électriquesInstallation électrique Fig Mise en place du tuyau d’écoulementRéglage de 2 télécommandes à fil TélécommandePour la télécommande à fil Appareil intérieur-appareil extérieur × AWG16 polarRéglage des fonctions Pour télécommande sans fil infrarougeLieu d’installation Programmation Fig2. Réglage des fonctions sur la commande à distance Tableau des fonctionsAuto-vérification Marche d’essaiMarche d’essai Contrôleur extérieur Pendant environ deux minutes après la mise sous tensionExemple d’affichage température de décharge du comp F Fonctionnement stable Stable op rationContenido Medidas de SeguridadLugar en que se instalará Instalación de la unidad interiorPreparación de la unidad interior Fig Instalación de la unidad interior FigOrificio de entrada de aire fresco Fig Tubos de conexió Fig Instalación de los tubos del refrigerantePrecauciones Unidad interior FigCableado eléctrico Fig Tubería de drenajeTrabajo eléctrico Procedimientos de instalación FigAjuste de 2 controladores remotos cableados Control remotoPara el controlador remoto cableado Zona de instalación Ajuste de funcionesPara el controlador remoto inalámbrico por infrarrojos Preparación inicial FigAjuste de funciones en el controlador remotor AjustePrueba de funcionamiento Prueba de funcionamientoAntes de realizar las pruebas AutotestCompruebe la pantalla de Para información detalladaTemperatura anormal del cuerpo de refrigeración Parada de seguridad del ventilador de la unidad exteriorUsed since the filter reset was performed Procedimientos de manejo del modo de mantenimientoPage RG79D508H02

PCA-A.KA4 specifications

The Mitsubishi Electronics PCA-A.KA4 is an advanced air conditioning unit designed to deliver exceptional comfort and efficiency in various settings. Known for its innovative technology and user-friendly design, this model is a preferred choice for both residential and commercial applications.

One of the main features of the PCA-A.KA4 is its advanced inverter technology. This system allows for variable speed operation, which means that the compressor can adjust its output based on the current cooling demand. As a result, the unit operates more efficiently, consuming less energy compared to traditional fixed-speed air conditioners. This not only reduces energy bills but also lessens the environmental impact, making the PCA-A.KA4 an eco-friendly option.

The PCA-A.KA4 also boasts a high seasonal energy efficiency ratio (SEER) rating, which indicates its effectiveness in converting electricity into cooling power over an entire season. This high efficiency is a significant advantage, particularly in regions with hot climates, where air conditioning usage is prevalent.

Another notable characteristic is the use of cutting-edge air purification technology. The PCA-A.KA4 is equipped with a multi-stage filtration system that captures dust, allergens, and other airborne particles. This feature enhances indoor air quality, ensuring that occupants breathe cleaner and healthier air, which is particularly beneficial for those with respiratory issues or allergies.

In terms of user convenience, the PCA-A.KA4 is designed with an intuitive remote control that provides easy operation from anywhere in the room. Additionally, the unit can be integrated with smart home systems, allowing for remote access and control via smartphones or tablets. This flexibility enables users to adjust settings even when they are away from home, ensuring optimal comfort at all times.

The PCA-A.KA4 also includes a quiet operation mode, minimizing noise levels to promote a peaceful environment. This feature is especially valuable in bedrooms or offices where concentration and relaxation are key.

Overall, the Mitsubishi Electronics PCA-A.KA4 represents a harmonious blend of comfort, efficiency, and smart technology. With its advanced features and user-friendly design, it stands out as a reliable air conditioning solution capable of meeting modern demands for both performance and sustainability. Whether for home or business use, the PCA-A.KA4 delivers a superior cooling experience that enhances overall well-being.
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