CAUTION
•If you need a pipe longer than specified in piping codes and standards, you must add refrigerant to the pipe. Otherwise, the indoor unit may freeze.
•While removing burrs, put the pipe face down to make sure that the burrs do not get in to the pipe.
Step 2.10 Fixing the installation plate
You can install the indoor unit on a wall, window frame, or gypsum board.
WARNING
•Make sure that the wall, window frame, or gypsum board can withstand the weight of the indoor unit. If you install the indoor unit in a place where it is not strong enough to withstand the unit's weight, the unit could fall and cause injury.
Liquid service port | Gas service port |
<High pressure> | <Low pressure> |
When fixing the indoor unit on a wall
Fix the installation plate to the wall giving attention to the weight of the indoor unit.
Plastic anchor
Installation
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| Correct |
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Inclined | Cracked | Uneven | Damaged |
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| thickness | surface |
<Flare nut>
NOTE
•Excessive torque may cause gas leakage. When extending the pipe with welding or brazing, ensure that nitrogen is used during the welding or brazing process. The joint must be accessible and serviceable.
CAUTION
•Tighten the flare nut at the specified torque. If the flare nut is
20 mm | Wall |
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| (Unit : mm) |
Model | A | B | C | D | |
**18******* | 33 | 110 | 110 | 33 | |
**24******* | |||||
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| Pipe bundle hole: Ø 65 mm | ||||
NOTE
•If you mount the plate to a concrete wall using plastic anchors, make sure that gaps between the wall and the plate, created by projected anchor, is less than 20 mm.
When fixing the indoor unit on a window frame
1Determine the positions of the wooden uprights to be attached to the window frame.
2Attach the wooden uprights to the window frame giving attention to the weight of the indoor unit.
3Attach the installation plate to the wooden upright using tapping screws.
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