Midea M2OA Installation Manual

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Inverter One-two One-three Split Wall-mounted Type

AIR CONDITIONER

(Installation Manual)

For correct installation, read this manual before starting installation and save this manual in
a safe place for future reference.
Only trained and qualified service personnel should install, repair or service air conditioning
equipment. Users should not install the air conditioner by themselves.
All pictures are only sketches. If there is any difference between pictures in this manual and
the actual shape of the air conditioner you purchased. the actual shape shall prevail.
INSTALLATION PRECAUTION
Installation in the following places may cause trouble. If it is unavoidable, please consult
with the local dealer.
A place full of machine oil.
A saline place such as coast.
A place full of sulfide gas such as hot-spring resort.
Places where there are high frequency machines such as wireless equipment, welding
machine, and medical facility.
A place there is no combustive gases and volatile matter.
A place of special environmental conditions.
Indoor Unit
A place where is no obstacle near the inlet
and outlet area.
A place which can bear the weight of the
indoor unit.
A place which is convenient to maintenance.
A place which provides the space around
the indoor unit as required right in the
diagram.
There is strong electromagnetic wave exist-
ing.
A place which is far from heat, steam and
inflammable gas.
1. Drilling A Hole and Mounting Installation Plate
Installation Plate and Its Direction (unit: mm)
150mm or more to ceiling
Indoor unit outline Installation plate
120mm or more 120mm or more
to wall to wall
70
70
Left refrigerant Right refrigerant
750
pipe hole 65 pipe hole 65
( 12 000Btu/h type )
1. Fix the installation plate.
1. Install the installation plate horizontally on stru-
ctural parts in the wall with the spaces provided
around the plate.
2. In case of brick, concrete or similar type walls,
make 5mmdia, holes in the wall. Insert clip anc-
hors for appropriate mounting screws.
3. Fix the installation plate on the wall.
Installation Plate

3. Indoor Unit Installation

1. Pass the piping through the hole in the wall.
Upper hook
2. Put the upper claw at the back of the indoor unit on
Floating prevention support
Low hook
3. Piping can easily be made by lifting the indoor unit
4. Push the lower part of the Indoor Unit up to the wall,
Cushion material
Outdoor Unit
A place, which is convenient to installation
and not exposed to a strong wind. A place
that is dry and ventilated.
A place can bear the weight of the outdoor
unit and where the outdoor unit can be held
in the horizontal position.
A place which does not allow an increase
in noise level and vibration.
A place where the operation noise and dis-
charge air do not disturb your neighbor.
A place free of a leakage of combustible
gases.
An allowable head level at the connective
piping is less than 5m and length of the
connective piping is up less than 10m.
No any obstacle which block radiating air.
Unavailable to children.
A place, which provides the space around
the outdoor unit as required right in the
diagram.
INDOOR UNIT INSTALLATION
1
Indoor unit outline Installation plate
150mm or more to ceiling
20
120mm or more
to wall
Left refrigerant
pipe hole 65
659 133
878
( 12 000Btu/h type )
2. Drilling a hole.
As diagram above determine the pipe
hole position using the installation
plate, drill the pipe hole( 65mm) so it
slants slightly downward.
the Upper Hook of the installation plate, move the
Indoor Unit from side to side to see that it is securely
hooked.
with a cushion material between the indoor unit
and the wall. Get it out after finish piping.
Then move the Indoor Unit from side to side, up and
down to check if it is hooked securely.
Indoor/Outdoor Unit Installation Illustration
Remote
Controller
Remote Controller Operation Guide
The Remote Controller should be in its
receiving range.
The Remote Controller should be kept
away from the TV/Stereo at least 1m.
Do not put the Remote Controller under
direct sunshine or near a heating source.
Make sure the battery is correctly installed
in the Remote Controller.
Anchor Bolts of Outdoor Unit Installation
The outdoor unit should not be exposed to
strong wind.
Fix the Outdoor Unit with 10 or 8 anchor
bolts.
air inlet
air outlet
If need suspending installation, consults
the corresponding requirement.
Accessories
Please install the accessories attached with unit
correctly according to this installation manual.
Note: 1. At least two of A, B, C
aspects are free from blocking.
2. When the Outdoor Unit is higher than the
Indoor Units, to prevent the rain from flowing into the indoor along the connection pipe,
a downward tipping arc should be made before the connection pipe entering the wall to
indoor to ensure the lowest point on the connection pipe is at outdoor.
2. Connective Pipe and Drainage Installation
1. Drainage
1. Run the drain hose sloping downward. Do
not install the drain hose as illustrated
below.
120mm or more
to wall
Right refrigerant
pipe hole 65
Do not form a rise
2. When connection extension drain hose,
insulate the connecting part of extension
drain hose with a shield pipe
Shield pipe Shield pipe
Drain hose Drain hose
3. Piping and bandaging
Wind the connective cable, drain hose and
wiring with tape securely, evenly as shown
below.
Because the condensed water from rear
of the indoor unit is gathered in Pond
Box and is piped out of room. Do not put
anything else in the box.
Indoor unit
Connective
cable
Drain hose
Remote
5
Controller
A
B
140
560
335
Number
Installation plate
1
Self-tapping screw ST3.9 25
2
Plastic Expansion Pipe
3
Connection
4
Pipe Ass.
Remote controller
5
Remote controller holder
6
2. Connection pipe
Pipe holder
Pipe cover
(right)
Right piping
1. For the left-hand and right-hand piping,
remove the pipe cover from the panel side.
Explain to clients that the pipe cover must
Do not put the hose
be kept as it may be used when relocate
end into water
the air conditioner to any other place.
2. For the left-hand and rear-left-hand piping,
install the piping as shown. Bend the conn-
ective pipe to be laid at 43mm height or
Wall Wall
less from the wall.
Indoor unit outline
Extension drainhose Extension drainhose
3. Fix the end of the connective pipe.
(Refer to Tightening Connection in REFRI-
GERANT PIPING CONNECTION)
Connect the indoor unit first then the outdoor
unit and bend and arrange the pipe carefully.
Indoor units that can
Number of connected units
n
be used in combinatio
Total of indoor units class
Pond box
Total length for all rooms
Length for one indoor unit
When above outdoor unit (B)
Difference in height between
Pipe room
indoor and outdoor units When below outdoor unit (A)
Difference in height between indoor units Max. 10m
.
. . .
.
.
.
Connective
.
. .
.
. . 1 cycle time
pipe
. . . . Compressor stop/start
. .
. .
.
.
. .
.
frequency
. . . .
.. .
Stop time
Wrapping belt
Voltage fluctuation
Power source voltage
Voltage drop during start
Interval unbalance
2
1
3
4
Remote
Controller
6
Air Out
C
Loop a connective
cable.
One-Three
One-Twin
Name
Liquid side 6.35
Gas side 9.53/ 12.7
Pipe cover(left)
Left piping
Left back piping
Right back piping
Connective pipe
.
CAUTION
2-3units
KW 9.0KW
Max. 60m
Max. 20m
Max. 10m
Max. 10m
6 min or more( from stop to
stop or from start to start)
3 min or more
within 10% of rated voltage
within 15% of rated voltage
within 3% of rated voltage