FREE SPACE REQUIRED AROUND OUTDOOR UNIT (Unit: mm)
1. Top side obstacles
When there is an obstacle behind the rear side only,
it does not matter if there is an obstacle over the
top side as shown in the figure below.
100 or more
500 or more
3. Obstacles on front (blowing) side only
In this case, the rear, both sides and top should be
open.
500 or more
5. Service space
Keep the service space as shown in the figure be-
low for maintenance.
Service space
100 or more
500 or more
100 or more
500 or more
350 or more
• 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 behind the unit as shown.
• When there is a lack of airflow or there is a possi-
bility of becoming short cycle, install an outlet guide
and make sure there is enough space behind the
rear side of the air inlet.
Note:
Make sure not to install several outdoor units sideways next to each other.
2. Front (blowing) side open
As long as space like the one shown in the figure
can be maintained, it does not matter if there are
obstacles in three directions (but top side is open).
200 or more
100 or more
350 or more
4. Obstacles on front and rear side only
The unit can be used by attaching an optional out-
door blowing guide (MAC-888SG) (but both sides
and top are open).
100 or more
500 or more
Blowing guide (MAC-888SG)
Window
More than 200 mm
More than
More than
More than
100 mm
350 mm
More than 200 mm
200 mm
Less than 1,200 mm of the
front surface side
4. OUTDOOR UNIT INSTALLATION
4-1
INSTALLING THE UNIT
• Be sure to fix the unit's legs with bolts when installing it.
• Be sure to install the unit firmly to ensure that it does not fall by an earthquake or a gust.
• Refer to the figure in the right for concrete foundation.
4-2
MOUNTING ARRANGEMENT OF DRAIN SOCKET
Please perform the drain piping work only when draining from one place.
CAUTION:
Do not use drain socket and drain cap in the cold region.
Drain may freeze and it makes the fan stop.
1 Please choose one hole to discharge drain and install the drain socket to the hole.
2 Please close the rest of the holes with the drain caps.
3 Please connect a vinyl hose of 25 mm in the inside diameter on the market with the drain socket and lead drain.
4-3
INDOOR/OUTDOOR WIRE CONNECTION AND OUTDOOR POWER
SUPPLY CORD CONNECTION
• Be sure to lead in the power supply cord A to the air conditioner in accordance with the specification table
below and "Technical Standards for Electrical Installation".
• Be sure to use special circuits for room air conditioner.
CAUTION:
Attach an earth leakage breaker according to your installation location. If any breaker is not attached, it
may cause a risk of electric shock.
WARNING:
Be sure to comply with "Technical Standards for Electrical Installation", follow this manual and use
special circuits for electrical work. If there is a lack of circuit capacity or some deficiency in installation,
it may cause a risk of fire or electric shock.
Overcurrent that might be produced may include DC substances. Be careful to choose the correct type
of overcurrent protection switch.
Rated Voltage Breaker capacity
Connect to the supply terminals and leave a contact separation of at least 3 mm at each pole to
230 V
25 A
disconnect the source power pole. (When the power switch is shut off, it must disconnect all poles.)
• Peel off both ends of the cables as shown in the right.
• Take care not to let the cables contact the pipes inside the unit.
• Take enough care to connect the indoor/outdoor unit connecting wire correctly be-
tween the respective indoor units and the outdoor unit.
• Make earth wire a little longer than the others. (more than 35 mm)
4
15 mm
35 mm