The diameter of connection pipes differs according to the type and capacity of indoor units. Match the diameters of connection pipes for indoor and outdoor units according to the following table.
•If the diameter of connection pipes does not match the diameter of pipe end connections, use optional
[mm (inch)]
|
|
| Indoor unit |
| |
Outdoor unit |
| 09/12 | 15/17 | 24 | |
Pipe size | 6.35 (1/4) / 9.52 (3/8) | 6.35 (1/4) / 12.7 (1/2) | 6.35 (1/4) / 15.88 (5/8) | ||
| |||||
| (liquid / gas) | ||||
|
|
|
| ||
A UNIT | 6.35 (1/4) / 12.7 (1/2) | ||||
B UNIT |
|
|
|
| |
C UNIT | 6.35 (1/4) / 9.52 (3/8) | ||||
D UNIT |
|
|
|
|
1-5. SELECTING THE INSTALLATION LOCATION
•Where it is not exposed to strong wind.
•Where airflow is good and dustless.
•Where rain or direct sunshine can be avoided as much as possible.
•Where neighbours are not annoyed by operation sound or hot air.
•Where rigid wall or support is available to prevent the increase of op- eration sound or vibration.
•Where there is no risk of combustible gas leakage.
•When installing the unit at a high level, be sure to secure the unit legs.
•Where it is at least 3 m (9.84 ft) away from the antenna of TV set or radio. Operation of the air conditioner may interfere with radio or TV re- ception in areas where reception is weak. An amplifier may be required for the affected device.
•Install the unit horizontally.
•Please install it in an area not affected by snowfall or blowing snow. In areas with heavy snow, please install a canopy, a pedestal and/or
some baffle boards.
Note:
It is advisable to make a piping loop near outdoor unit so as to reduce vibration transmitted from there.
Note:
When operating the air conditioner in low outside temperature, be sure to follow the instructions described below.
•Never install the outdoor unit in a place where its air inlet/outlet side may be exposed directly to wind.
•To prevent exposure to wind, install the outdoor unit with its air inlet side facing the wall.
•To prevent exposure to wind, it is recommended to install a baffle
board on the air outlet side of the outdoor unit.
Avoid the following places for installation where air conditioner trouble is liable to occur.
•Where flammable gas could leak.
•Where there is much machine oil.
•Salty places such as the seaside.
•Where sulfide gas is generated such as a hot spring.
•Where there is
FREE SPACE REQUIRED AROUND OUTDOOR UNIT
1. Top side obstacles
When there is an obstacle behind the | 100 (3.94) or more |
rear side only, it does not matter if |
|
there is an obstacle over the top side | 500 (19.68) |
as shown in the figure below. | |
| or more |
2.Front (blowing) side open
As long as space like the one shown in the figure can be maintained, it does not mat- ter if there are obstacles in three directions (but top side is open).
100 (3.94) or more
200(7.87)
or more
350(13.78)
or more
3.Obstacles on front (blowing) side only
In this case, the rear, both sides and top should be open.
500 (19.68) or more
4.Obstacles on front and rear side only
The unit can be used by at- | 100 (3.94) |
taching an optional outdoor | |
blowing guide | or more |
(but both sides and top are |
|
open). | 500 (19.68) or more |
| Blowing guide |
5.Service space
Keep the service space as shown in the figure below for mainte- nance.
Service space
• | When installing the unit in an area that is enclosed on four sides such |
| as a verandah, be sure to leave move than 200 mm (7.87 in.) behind |
| the unit as shown. |
• | When there is a lack of airflow or there is a possibility of becoming |
| short cycle, install an outlet guide and make sure there is enough |
100(3.94)
or more
500(19.68)
or more
100(3.94)
or more
500 (19.68) or more |
350 (13.78) or more
space behind the rear side of the air inlet.
Note:
Make sure not to install several outdoor units sideways next to each other.
| Window |
| |
| More than 200 |
| |
More than | (7.87) | More than | |
More than | 350 (13.78) | ||
100 (3.94) | |||
200 (7.87) |
| ||
| More than | ||
|
| ||
Less than 1,200 (47.3) of the front surface side | 200 (7.87) | ||
| |||
[Unit: mm (inch)]
