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INSTALLATION MANUAL
NTXWMT09A111A✱
NTXWMT12A111A✱
1. BEFORE INSTALLATION
1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY
■ 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.
■ Use the speci ed wires to securely connect the indoor and outdoor units. At-
tach the wires rmly to avoid applying stress to the terminal block.
■ Do not install the unit in a place where ammable gas may leak.
■ Do not use intermediate connection of the power cord or the extension cord.
Do not connect many devices to one AC outlet.
■ Use the parts provided or speci ed parts for the installation work.
■ 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.
■ 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 touch the air inlet or the aluminum ns of the outdoor unit.
manual of the multi unit for outdoor unit installation.
Phillips screwdriver
3 in. (75 mm) hole saw
Wrench (or spanner)
WARNING
■ 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
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other than the speci ed refrigerant (R410A) enters the refrigerant circuit.
■ 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.
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■ 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.
■ Fasten a are nut with a torque wrench as speci ed in this manual.
■ Install the unit according to national wiring regulations.
CAUTION
■ Do not install the outdoor unit where small animals may live.
Required Tools for Installation
5/32 in. (4 mm) hexagonal wrench
Pipe cutter with reamer
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Table of Contents
Related Manuals for Trane MITSUBISHI ELECTRIC NTXWMT09A111A Series
Summary of Contents for Trane MITSUBISHI ELECTRIC NTXWMT09A111A Series
- Page 1 manual of the multi unit for outdoor unit installation. Required Tools for Installation Phillips screwdriver 5/32 in. (4 mm) hexagonal wrench INSTALLATION MANUAL NTXWMT09A111A✱ NTXWMT12A111A✱ 3 in. (75 mm) hole saw Pipe cutter with reamer Wrench (or spanner) 1. BEFORE INSTALLATION 1-1.
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Page 2: Selecting The Installation Location
1-2. SELECTING THE INSTALLATION LOCATION INDOOR UNIT Note: Note: received. location where continuous direct sunlight or excessive OUTDOOR UNIT Note: When operating the air conditioner in low outside tem- the affected device. or hot (or cool) air. with its air inlet side facing the wall and on the air outlet side. -
Page 3: Installation Diagram
1-4. INSTALLATION DIAGRAM ACCESSORIES Wall hole cover (D) Use the wall hole sleeve (C) to prevent indoor/ Indoor unit <Indoor unit> outdoor connecting wire Installation plate (A) from contacting metal Wall hole Attach the pipe to parts in the wall and to sleeve (C) Attachment screws for the installa- wall with pipe at-... -
Page 4: Indoor Unit Installation
2. INDOOR UNIT INSTALLATION 2-1. ATTACHING THE INSTALLATION PLATE Ceiling 2-1/8 in. (54 mm) or more Installation plate (1) installed in other holes. 3-7/8 in. 4-3/8 in. or more or more Wall Wall Insert Align the Center of Attachment screw (2) scale with ø... -
Page 5: Pipe Forming And Drain Piping
2-4. PIPE FORMING AND DRAIN PIPING 2-4-1. PIPE FORMING Indoor/outdoor unit supplied). connecting wire (A) Note: Felt tape (4) screws. Left or left-rear piping Note: Felt tape (4) on left side of unit. from the end. end of felt tape (4). Drain cap Drain hose Fig. -
Page 6: Outdoor Unit Installation
3. OUTDOOR UNIT INSTALLATION 3-1. CONNECTING WIRES FOR OUTDOOR UNIT L1 N (15 mm) Power supply cord (K) 8) Install the conduit cover. wire the connecting wires. spondent terminal when securing the cord Conduit plate Conduit pipe terminal Indoor/outdoor unit connecting wire (A) to conduit cover Power supply cord (K) -
Page 7: Purging Procedures, Leak Test, And Test Run
3-3. PIPE CONNECTION Indoor unit connection Outdoor unit connection detailed in Indoor unit connection. WARNING When installing the unit, securely connect the refrigerant pipes before starting the compressor. 3-4. INSULATION AND TAPING 4. PURGING PROCEDURES, LEAK TEST, AND TEST RUN 4-1. -
Page 8: Relocation And Maintenance
WARNING When pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes. The compressor may burst if air etc. get into it. Publication No. DL-SVN023A-EN Published Dec. 2018 MITSUBISHI ELECTRIC TRANE HVAC US LLC...