36
12. Installation Instruction
12.1 Select the Best Location
12.1.1 Indoor
Unit
Do not install the unit in excessive oil fume area
such as kitchen, workshop and etc.
There should not be any heat source or steam
near the unit.
There should not be any obstacles blocking the air
circulation.
A place where air circulation in the room is good.
A place where drainage can be easily done.
A place where noise prevention is taken into
consideration.
Do not install the unit near the door way.
Ensure the spaces indicated by arrows from the
wall, ceiling, fence or other obstacles.
Indoor unit of this air conditioner shall be installed
in a height of at least 1.8 m.
12.1.2 Outdoor
Unit
If an awning is built over the unit to prevent direct
sunlight or rain, be careful that heat radiation from
the condenser is not obstructed.
There should not be any animal or plant which
could be affected by hot air discharged.
Keep the spaces indicated by arrows from wall,
ceiling, fence or other obstacles.
Do not place any obstacles which may cause a
short circuit of the discharged air.
If piping length is over the [piping length for
additional gas], additional refrigerant should be
added as shown in the table.
Table A
(*) Systems with total refrigerant charge,
m
c
, lower
than 1.84kg are not subjected to any room area
requirements.
Example: For BZ25***
If the unit is installed at 10 m distance, the quantity of
additional refrigerant should be 25 g .... (10-7.5) m x
10 g/m = 25 g.
A
min
=
(
m
c
/ (
2.5 x
(
LFL
)
(5/4)
x h
0
))
2
** not less than
safety factor margin
A
min
= Required minimum room area, in m
2
m
c
= Refrigerant charge amount in appliance, in kg
LFL
= Lower flammability limit (0.307 kg/m
3
)
h
0
= Installation height of the appliance (1.8 m for
wall mounted)
SF
= Safety factor with a value of 0.75
** The required minimum room area,
A
min
, shall also
be governed by the safety factor margin formula
below :
A
min
=
m
c
/
(SF x LFL x h
0
)
The higher value shall be taken when determining the
room area.
12.1.3 Indoor/Outdoor Unit Installation
Diagram
Model
Capacity
W
(HP)
Piping size
Std.
Length
(m)
Max.
Elevation
(m)
Min.
Piping
Length
(m)
Max.
Piping
Length
(m)
Additional
Refrigerant
(g/m)
Piping
Length
for add.
gas
(m)
Max.
Refrigerant
Charge
(kg)
Indoor
A
min (m²)
Gas
Liquid
BZ25***,
UZ25***,
PZ25***
1.0HP
9.52mm
(3/8")
6.35mm
(1/4")
5
15
3
15
10
7.5
0.62
Not applicable (*)
BZ35***,
UZ35***,
PZ35***
)
*
(
e
l
b
a
c
il
p
p
a
t
o
N
5
7
.
0
5
.
7
0
1
5
1
3
5
1
P
H
5
.
1
BZ50***,
UZ50***,
PZ50***
2.0HP
12.7mm
(1/2")
15
3
15
15
7.5
1.25
Not applicable (*)
)
*
(
e
l
b
a
c
il
p
p
a
t
o
N
5
4
.
1
5
.
7
5
1
0
3
3
5
1
P
H
5
2
.
2
*
*
*
0
6
Z
B
Attention not to bend
up drain hose
Piping direction
(Front side)
Right
Right
Rear
Right
bottom
Left
Rear
Left bottom
Left
(Left and right are identical)
Installation plate
1
Sleeve (
)
Bushing-Sleeve ( )
Bend the pipe as closely
on the wall as possible,
but be careful that it
doesn’t break.
Saddle (
)
Additional drain hose (
)
Gas side piping ( )
Connection cable
Putty ( )
(Gum Type Sealer)
Liquid side piping ( )
Power supply cord (
)
Flare connection
Vinyl tape (wide) ( )
• Apply after carrying out
a drainage test.
• To carry out the
drainage test, remove
the air lters and pour
water into the heat
exchanger.
•
This illustration is for
explanation purposes only.
The indoor unit will actually
face a different way.
(*) If holder at the rear of chassis
(Refer column “ 4 Indoor Unit
Installation” ) need to be used
to prop up the unit, this distance
shall be 65 mm or more.
It is advisable to
avoid more than 2
blockage directions.
For betterventilation
& multiple-outdoor
installation, please
consult authorized
dealer/specialist.
Installation parts you
should purchase (
)
300
m
m
or m
ore
100
m
m
or m
ore
10
0
m
m
or
m
or
e
10
00
m
m
or
m
or
e
50 m
m
or
m
or
e
(*)
50 mm
or more
•
Carry out insulation after
checking for gas leaks and
secure with vinyl tape.
Vinyl tape
Remote control holder
5
Remote control holder fixing screws
6
Remote
control
3
Insulation of piping connections
Attaching the remote control holder to the wall
