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Mitsubishi Electric MSZ-WR09/12NA User Manual

Mitsubishi Electric MSZ-WR09/12NA
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1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY
 
 
 
 


INSTALLATION MANUAL
ENGLISH
Required Tools for Installation
Phillips screwdriver





Wrench (or spanner)

wrench




Pipe cutter with reamer
MSZ-WR09/12NA
Do not install the unit by yourself (user).



Follow the instructions detailed in the installation manual.


When installing the unit, use appropriate protective equipment and tools for
safety.

Install the unit securely in a place that can bear the weight of the unit.


Perform electrical work according to the installation manual and be sure to use
an exclusive circuit. Do not connect other electrical appliances to the circuit.


Ground the unit correctly.


Do not damage the wires.

Be sure to shut off the main power when setting up the indoor P.C. board or
wiring.

-




Do not use intermediate connection of the power cord or the extension cord.
Do not connect many devices to one AC outlet.




When plugging the power supply plug into the outlet, make sure that there is
no dust, blockage, or loose parts both in the outlet and on the plug. Verify that
the power supply plug is completely in the outlet.


Securely attach the electrical cover to the indoor unit and the service panel to
the outdoor unit.
If the electrical cover of the indoor unit and/or the service panel of the outdoor unit are


When installing, relocating, or servicing the unit, make sure that no substance
!"#$%&





Do not discharge the refrigerant into the atmosphere. Check that the refriger-
ant gas does not leak after installation has been completed. If refrigerant leaks
during installation, ventilate the room.



Use appropriate tools and piping materials for installation.



When pumping down the refrigerant, stop the compressor before disconnecting
the refrigerant pipes.
If the refrigerant pipes are disconnected while the compressor is running and the


When installing the unit, securely connect the refrigerant pipes before starting
the compressor.



'*

Install the unit according to national wiring regulations.
Depending on the installation area, install a Ground Fault Interrupt (GFI) circuit
breaker.

could occur.
Perform the drainage/piping work securely according to the installation manual.

damage household items.


Do not install the outdoor unit where small animals may live.


CAUTION

WARNING

1. BEFORE INSTALLATION
MITSUBISHI
lfi'1.ELECTRIC
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Mitsubishi Electric MSZ-WR09/12NA Specifications

General IconGeneral
TypeSplit System
Cooling Capacity9, 000 / 12, 000 BTU/h
HSPF10.0 / 10.0
Power Supply208/230V, 1-phase, 60Hz
RefrigerantR410A
Operating Temperature (Cooling)14°F to 115°F
Sound Level (dB)19 (Low) - 42 (High) / 19 (Low) - 45 (High)

Summary

Before Installation

Safety Observations

Crucial safety precautions and instructions for installation must be followed.

Selecting Installation Location

Indoor Unit Location

Guidance on choosing an appropriate location for the indoor unit based on airflow and environment.

Remote Controller Location

Tips for selecting a convenient and signal-receivable location for the remote controller.

Outdoor Unit Location

Criteria for selecting an optimal installation site for the outdoor unit considering wind and noise.

Specifications Overview

Power Supply and Wiring Connections

Details on electrical power supply requirements and wiring connections for the unit.

Refrigerant Pipes Specifications

Specifications and guidelines for refrigerant pipe installation, including insulation and bending.

Installation Diagram

Included Accessories

List of accessories provided with the air conditioning unit.

Field-Supplied Parts

List of parts that need to be supplied by the installer or customer.

Indoor Unit Installation

Attaching the Installation Plate

Step-by-step instructions for securely mounting the indoor unit's installation plate on the wall.

Drilling for Installation

Procedures for drilling the wall hole for pipe and wire passage, ensuring correct orientation.

Indoor Unit Wiring Connections

Detailed guide on connecting electrical wires to the indoor unit's terminal block.

Pipe Forming and Drain Piping

Refrigerant Pipe Forming

Instructions for shaping refrigerant pipes and connecting them for optimal fit and function.

Drain Piping Installation

Guidelines for correctly installing the drain hose to ensure proper water drainage.

Outdoor Unit Installation

Outdoor Unit Wiring Connections

Steps for connecting electrical wiring to the outdoor unit's terminal block.

Flare Connection Procedure

Detailed instructions and torque specifications for making secure flare connections on refrigerant pipes.

Pipe Connection and Insulation

Purging Procedures and Leak Test

Procedures for removing air and checking for refrigerant leaks before system operation.

Test Run Operation

Steps for performing initial test runs of the air conditioner in COOL and HEAT modes.

Auto Restart Function

Explanation of the auto-restart feature and how it functions after power interruptions.

User Explanation Guidelines

Guidance on explaining the unit's operation and features to the end-user.

Relocation and Maintenance

Panel Assembly Removal and Installation

Instructions for removing and reinstalling the front panel assembly of the indoor unit.

Indoor Unit Removal Procedure

Steps for safely detaching the indoor unit from its wall-mounted installation plate.

Refrigerant Pumping Down

Procedure for safely recovering refrigerant before relocating or disposing of the unit.

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