Mitsubishi Electric M Series Manual page 180
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WALL-MOUNTED Cooling Only/Fixed Speed Heat Pump
MS-GD80VB
MSH-GD80VB
MU-GD80VB
MUH-GD80VB
INSTALLATION DIAGRAM & ACCESSORIES
FLARED CONNECTIONS
•
This unit has flared connections on both indoor and outdoor sides.
•
Remove the outdoor units valve cover, then connect the pipe.
•
Refrigerant pipes are used to connect the indoor and outdoor units.
•
Be careful not to crush or bend the pipe in pipe bending.
i L
m
s t i
P
p i
e
e l
n
g
h t
H
e
g i
t h
d
f i
e f
e r
n
c
e
N
. o
f o
b
e
n
d
s
•
Refrigerant adjustment ... If pipe length exceeds 7 m, additional refrigerant
(R-410A) charge is required.
(The outdoor unit is charged with refrigerant for pipe length up to 7 m.)
Up to 7 m
Pipe length
Exceeding 7 m
MS-GD80
Refrigerant to
be added
MSH-GD80
ACCESSORIES
Check the following parts before installation.
<Indoor unit>
1
n I
t s
l l a
t a
o i
n
p
a l
e t
2
Installation plate fixing screw 4 25 mm
x
R
e
m
o
e t
c
o
n
r t
l l o
r e
h
o
d l
r e
3
x
4
Fixing screw for
3
3.5
16 mm (Black)
Battery (AAA) for remote controller
5
6
W
i
e r
e l
s s
e r
m
o
e t
c
o
n
r t
l l o
r e
7
Felt tape (Used for left or left-rear piping)
<Outdoor unit: MUH type>
D
a r
n i
s
o
k c
t e
8
D
a r
n i
c
a
p
ø
3
3
9
PART TO BE PROVIDED AT YOUR SITE
Optional extension pipe
Indoor/outdoor unit connecting wire
A
(2-core 1.0 mm
-2.0 mm
)
2
2
B
E
x
e t
n
s
o i
n
p
p i
e
C
W
l l a
h
o
e l
s
e l
e
v
e
W
l l a
h
o
e l
c
o
v
r e
D
Pipe fixing band (The quantity depends
E
on the pipe length.)
Fixing screw for
E
4 x
20 mm (The quan-
F
tity depends on the pipe length.)
G
P
p i
n i
g
a t
p
e
P
t u
y t
H
Drain hose (or soft PVC. hose, 15 mm
I
inner dia. or hard PVC pipe VP16)
J
R
e
r f
g i
r e
t a
o i
n
l i o
Power supply cord (See the table in
INDOOR/OUTDOOR WIRE CONNECTION
K
AND OUTDOOR POWER SUPPLY CORD
CONNECTION for the cord size.)
840 mm
Air outlet
169 mm
500 mm
4-10 mm x 21 mm slot
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.
C-178
M
( S
H
- )
G
D
8
0
3
0
m
m
a
. x
1
5
m
m
a
. x
1
0
m
a
. x
No additional charge is required.
Additional charge is required.
(Refer to the formulas below.)
55 g/m × (refrigerant piping length (m) -7)
55 g/m × (refrigerant piping length (m) -7)
1
7
1
2
2
1
1
1
2
1
1
1
1
2 to 5
2 to 5
1
1
1
1
1
5
Units should be installed by licensed contractor according
to local code requirement.
PIPING PREPARATION
Specifications
Use the refrigerant pipes that meet the following specifications.
Outside diameter
Pipe
mm
For liquid
9.52
For gas
15.88
Use a copper pipe or a copper-alloy seamless pipe with a thickness of 0.8 mm
(for ø6.35, 9.52) or 1.0 mm (for ø15.88). Never use any pipe with a thickness less
than 0.8 mm (for ø6.35, 9.52) or 1.0 mm (for ø15.88), as the pressure resistance
is insufficient.
Ensure that the 2 refrigerant pipes are insulated to prevent condensation.
Refrigerant pipe bending radius must be 100 mm or more.
Be sure to use the insulation of specified thickness. Excessive thickness may
cause incorrect installation of the indoor unit and lack of thickness may cause
dew drippage.
Decide the installation position using mark on the installation
plate indicating the indoor unit size as reference.
1
2
D
H
C
7
Note: Do not
obstruct the
air outlet.
G
6
3
E
F
4
K
A
M series
Insulation thickness
Insulation material
mm
8
Heat resisting
foam plastic 0.045
8
specific gravity
CAUTION
Be careful the
drain hose is not
raised.
Piping can be directed towards rear,
right, downward, left or left-rear
directions.
Front
Rear side
Right
Rear
Downward
Left-rear
Lock the catch.
B
Separate the 2 connecting pipes and
apply insulation individually.
8 mm thickness thermal insulation
plastic
When the piping is to be attached to
a wall containing metals (tin plated) or
metal netting, use a chemically treated
wooden piece 20 mm or thicker be-
tween the wall and the piping or wrap
7 to 8 turns of insulation vinyl tape
around the piping.
Drain piping for outdoor unit
Install the unit horizontally.
Do not use drain socket
8
in cold regions.
Drain may freeze and make the fan stop.
The outdoor unit produces condensate
during the heating operation. Select the in-
stallation place to ensure to prevent the
outdoor unit and/or the grounds from being
wet by drain water or damaged by frozen
drain water.
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