2. OUTDOOR UNIT INSTALLATION

2-1. CONNECTING WIRES FOR OUTDOOR UNIT

Be sure to use special circuits for room air conditioner.

Wiring work should be based on applicable technical standards.

Wiring connections should be made following the diagram.

Screws should be tightened so they won’t loosen.

 

ELECTRICAL SPECIFICATIONS

OUTDOOR UNIT

 

MXZ-2A20NA

Power supply (V, PHASE, Hz)

 

208/230, 1, 60

Max. Fuse size (time delay) (A)

 

20

Min. Circuit Ampacity (A)

 

15

Fan motor (F.L.A)

 

0.96

Compressor

(R.L.A)

10.1

(L.R.A)

15

 

Control voltage

 

Indoor unit-Remote controller : (Wireless)

 

Indoor unit-Outdoor unit : DC12-24V

 

 

1)Remove the service panel.

2)Fix the conduit connector to conduit cover with lock nut then secure it against unit with screws.

3)Fix the conduit cover to the outdoor unit then secure it with screws.

4)Connect power supply cord and indoor/outdoor connecting wire to the ter- minal block.

(Leave some slack in wires to allow easier servicing.)

5)Close the service panel securely. Make sure that 3-2. PIPE CONNECTION

is completed.

Remark:

INDOOR UNIT A

*

A disconnect switch should be required. Check the local code.

**

Use a ring tongue terminal in order to connect a ground wire to terminal.

Terminal block

 

Grounding terminal

Conduit cover

Lock nut

Connector

INDOOR UNIT B

Terminal block

Grounding terminal **

208/230 V AC

Disconnect

208/230 V AC

1phase 60 Hz

switch *

1phase 60 Hz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Grounding

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

terminal **

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Terminal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

block 1

Terminal block

 

Terminal block

 

 

 

 

 

 

 

 

UNIT A

 

 

UNIT B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTDOOR UNIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Grounding terminal **

Disconnect switch *

Grounding terminal **

Ground

Power supply 208/230 V AC 1phase 2wires 60 Hz

Connect wires to the matching numbers of terminals.

CONNECTING WIRES AND CONNECTING GROUND WIRE

Use solid conductor AWG14 or stranded conductor AWG14.

Use double insulated copper wire with 600 V insulation.

Use copper conductors only.

*Follow local electrical code.

POWER SUPPLY CABLE AND GROUND WIRE

Use solid or stranded conductor AWG14.

Use copper conductors only.

*Follow local electrical code.

WARNING:

Use the indoor/outdoor unit connecting wire that meets the Standards to connect the indoor and outdoor units and fix the wire to the terminal block securely so that no external force is conveyed to the connecting section of the terminal block. An incomplete connection or fixing of the wire could result in a fire.

For future servicing, give extra length to the connecting wires.

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Mitsubishi Electronics MXZ-2A20NA installation manual Outdoor Unit Installation, Connecting Wires for Outdoor Unit

MXZ-2A20NA specifications

The Mitsubishi Electronics MXZ-2A20NA is a highly efficient multi-split air conditioning system designed to provide optimal comfort in residential and commercial spaces. Renowned for its advanced technologies, this model is part of Mitsubishi's commitment to energy efficiency and user-friendly operation.

One of the standout features of the MXZ-2A20NA is its multi-zone capability. The unit can simultaneously connect to up to two indoor units, allowing users to customize the climate in different areas of their home or office. This flexibility not only enhances comfort but also promotes energy savings, as only the necessary spaces are heated or cooled.

Efficiency is at the core of the MXZ-2A20NA's design. With a SEER (Seasonal Energy Efficiency Ratio) rating that exceeds industry standards, this unit ensures low energy consumption while maintaining excellent cooling performance. The Advanced Inverter Technology further optimizes efficiency by adjusting the compressor speed based on the cooling or heating demand. This results in less energy wastage and greater cost savings on utility bills.

The unit is equipped with Mitsubishi’s proprietary 3D i-See Sensor, which intelligently detects temperature variations and adjusts airflow accordingly. This technology enables the system to deliver consistent and comfortable temperatures throughout the room, eliminating hot and cold spots.

Another key feature of the MXZ-2A20NA is its Whisper Quiet operation. The outdoor unit is engineered for minimal noise, making it suitable for residential settings without disrupting the peace of the home. The indoor units also operate quietly, adding to the overall comfort.

Moreover, the MXZ-2A20NA supports advanced connectivity options, including compatibility with Mitsubishi’s MELCloud app. This allows users to control their system remotely via a smartphone, providing convenience and enabling precise temperature management from anywhere.

In terms of installation, the MXZ-2A20NA features a compact design that allows for flexibility in placement, making it an ideal choice for spaces with limited installation options. Its robust build quality ensures durability and reliability over years of operation.

In summary, the Mitsubishi Electronics MXZ-2A20NA represents a blend of cutting-edge technology and user-friendly features, offering efficient cooling and heating for modern living environments. With its multi-zone capability, energy-efficient operation, and advanced control options, it stands out as an excellent choice for maintaining comfort in any climate.