2MXL18QMVJUA Installation Manual
Table Of Contents
- Safety Considerations
- Accessories
- Precautions for Selecting a Location
- Precautions on Installation
- Outdoor Unit Installation Diagram
- Connections (connection port)
- How to Use Reducers
- Installation Space Requirements
- Selecting a Location for Installation ofthe Indoor Units
- Outdoor Unit Installation
- 1. Installing the outdoor unit
- 2. Drain work
- 3. Refrigerant piping
- 4. Pressure test and evacuating system
- 5. Refilling refrigerant
- 6. Charging with refrigerant
- 7. Refrigerant piping work
- 8. Flaring the pipe end
- Wiring
- Priority Room Setting
- Night Quiet Mode setting
- COOL/ HEAT mode lock [S15]
- Pump Down Operation
- Trial Operation and Testing
- 1. Wiring error check
- 2. Trial operation and testing
- 3. Test items
7 ■English
Installation Space Requirements
• Whereawallorotherobstacleisinthepathofoutdoorunit’sintakeorexhaustairow,followtheinstallationspacerequirements
below.
• For any of the below installation patterns, the wall height on the outlet side should be 47-1/4 inch (1200mm) or less.
unit: inch (mm)
Top view
More than 3-15/16 (100)
More than 13-3/4 (350)
More than
1-15/16 (50)
More than
1-15/16 (50)
More than
1-15/16 (50)
Top view
More
than
3-15/16
(100)
More than
13-3/4
(350)
More than
3-15/16 (100)
More than
13-3/4 (350)
Side view
47-1/4
(1200)
or less
Wall facing one side Walls facing two sides
Walls facing three sides
More than
3-15/16 (100)
More than
13-3/4 (350)
Selecting a Location for Installation of
the Indoor Units
• Themaximumallowablelengthofrefrigerantpiping,andthemaximumallowableheightdifferencebetweentheoutdoorand
indoor units, are listed below. (The shorter the refrigerant piping, the better the performance. Connect so that the piping is as
short as possible. Shortest allowable length per room is 10ft (3m).)
If the outdoor unit is positioned higher than the indoor units. If the outdoor unit is positioned lower than
one or more indoor units.
Level
difference:
24-5/8ft (7.5m)
max.
Level
difference:
49-1/4ft (15m)
max.
Indoor unit
Outdoor unit
Level
difference:
49-1/4ft (15m)
max.
Outdoor unit
Indoor unit
Level
difference:
24-5/8ft (7.5m)
max.
Outdoor unit capacity class
Piping to each indoor unit
2MXS18∗, 2MXL18∗
82ft (25m) max.
3MXS24∗, 4MXS36∗, 3MXL24∗
Total length of piping between all units 164ft (50m) max. 230ft (70m) max.
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