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Mitsubishi Electric PUZ-A12NHA7 User Manual

Mitsubishi Electric PUZ-A12NHA7
36 pages
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PUZ-A·NHA7/KA7
PUY-A·NHA7/KA7
Air-Conditioners
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POUR L’INSTALLATEUR
PARA EL INSTALADOR
FOR INSTALLER
INSTALLATION MANUAL
For safe and correct use, read this manual and the indoor unit installation manual thoroughly before installing
the air-conditioner unit.
MANUEL D’INSTALLATION
Avant d’installer le climatiseur, lire attentivement ce manuel, ainsi que le manuel d’installation de l’appareil
intérieur pour une utilisation sûre et correcte.
MANUAL DE INSTALACIÓN
Para un uso correcto y seguro, lea detalladamente este manual y el manual de instalación de la unidad interior
antes de instalar la unidad de aire acondicionado.
BG79U896H14_cover.indd 1 2021/10/08 11:49:39
001
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Mitsubishi Electric PUZ-A12NHA7 Specifications

General IconGeneral
Heating Capacity13, 600 BTU/h
Voltage (V)208 / 230
Phase1
Noise Level (Outdoor Unit)49 dB(A)
RefrigerantR410A
Sound Level (dB(A))19

Summary

Safety Precautions

General Installation Precautions

General precautions and warnings before unit installation.

Electrical Safety Guidelines

Guidelines for safe and correct electrical wiring and installation.

Refrigerant Handling and Safety

Precautions for using R410A refrigerant and related installation steps.

Safety Precautions

Relocation Installation Safety

Specific instructions for safely moving and installing the unit.

Electrical Work Safety

Critical steps and warnings before performing electrical connections.

Test Run Preparation

Procedures to follow before initiating the unit's operational test.

R410A Refrigerant Specifics

Guidelines and warnings for handling R410A refrigerant and related components.

Installation Location

Refrigerant Pipe Limits

Limits for pipe length, height difference, and bends for various models.

Outdoor Unit Placement

Criteria for selecting an optimal and safe location for the outdoor unit.

Outdoor Unit Dimensions

Diagrams showing the physical size and space requirements of the outdoor unit.

Installation Location

Ventilation and Service Space

Guidelines for air flow, service access, and wind protection.

Single Unit Clearance

Required space around a single unit based on obstacle placement.

Multiple Unit Clearance

Space requirements for side-by-side and stacked unit arrangements.

Installing the Outdoor Unit

Foundation and Mounting

Specifications for securing the outdoor unit on a stable base.

Installing the Refrigerant Piping

R410A Refrigerant Precautions

Specific warnings and guidelines for R410A refrigerant systems.

Connecting Refrigerant Pipes

Detailed steps for connecting liquid and gas pipes, including flare nut tightening.

Piping Connections and Leak Testing

Procedure for connecting indoor and outdoor unit piping, including valve operations and leak testing.

Installing the Refrigerant Piping

Refrigerant Pipe Airtight Testing

Method for pressure testing refrigerant pipes to detect leaks.

Stop Valve Operation Procedure

Procedure for opening and closing stop valves, including warnings.

Installing the Refrigerant Piping

Additional Refrigerant Charging

Guidelines for adding refrigerant based on pipe length and model.

Drainage Piping Work

Outdoor Unit Drainage Connection

Instructions for connecting drainage pipes for the outdoor unit.

Electrical Work

Outdoor Unit Wiring Overview

Diagrams and basic steps for connecting electrical wires to the outdoor unit.

Electrical Work

Field Electrical Wiring Details

Specifications for wiring outdoor units, indoor units, and remote controllers.

Test Run

Pre-Test Run Checks

Essential checks before starting the unit's operational test, including insulation resistance.

Test Run

Test Run Operation Modes

Steps for conducting the test run using outdoor unit DIP switches.

Remote Controller Test Run

Reference to indoor unit manual for test run via remote controller.

Special Functions

Low Noise Mode Modification

On-site modification to reduce outdoor unit operating noise.

Demand Function Configuration

On-site modification to control energy consumption.

Refrigerant Collection Procedure

Procedure for collecting refrigerant when moving units.

Special Functions

System Control and Addressing

Setting refrigerant addresses and system grouping using DIP switches.

Low Ambient Cooling

Low Ambient Cooling Precautions

Measures for operating the unit in cold ambient temperatures.

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