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12. Installation Instruction
■ Required Materials
Read the catalog and other technical materials
and prepare the required materials.
Applicable piping kit
Applicable piping kit
Piping size
Gas Liquid
CZ-3F5, 7BP 9.52 mm (3/8") 6.35 mm (1/4")
CZ-4F5, 7, 10BP 12.7 mm (1/2") 6.35 mm (1/4")
CZ-52F5, 7, 10BP 15.88 mm (5/8") 6.35 mm (1/4")
Pipe Size Reducer (CZ-MA1P) and Expander
(CZ-MA2P) for Outdoor Multi Connection
CS-Z50******, CS-Z60******.
Please refer to “Connect the piping”.
■ Other Items to be Prepared (Locally Purchased)
Product name Remarks
Rigid PVC pipe VP20 (outer diameter ø26); also
sockets, elbows and other parts as
necessary
Adhesive
PVC adhesive
Insulation For refrigerant piping insulation :
foamed polyethylene with a thickness of
8 mm or more.
For drain piping insulation : foamed
polyethylene with a thickness of 10 mm
or more.
Indoor/outdoor
connecting cable
4 x 1.5 mm
flexible cord, designation
type 60245 IEC 57 (H05RN-F)
Hanging bolt related
parts
Hanging bolts (M10) (4) and nuts (12),
(when hanging the indoor unit)
Table A
Model Capacity
Max. Refrigerant
Charge (kg)
Indoor A
min
(m
2
)
Z25*** 1.0HP 1.05 Not applicable (*)
Z35*** 1.5HP 1.10 Not applicable (*)
Z50*** 2.0HP 1.44 Not applicable (*)
Z60*** 2.25HP 1.51 Not applicable (*)
(*) Systems with total refrigerant charge, m
c
, lower
than 1.84kg are not subjected to any room area
requirements.
* Table “A” only applicable for single split connection.
* In case of connection to outdoor multi inverter, refer
to installation manual at outdoor unit.
Attaching the remote controller to the wall
Screws 3
or
screws 4
Remote controller
cable 2
Remote controller 1
Details refer to
3. INSTALLING
THE INDOOR
UNIT (Remote
Control
Installation)
Insulation of piping connections
• Carry out insulation after
checking for gas leaks and
secure with vinyl tape.
Vinyl tape
Sleeve ( )
Bushing-Sleeve (
)
Putty (Gum Type Sealer) (
)
Bend the pipe as closely on
the wall as possible, but be
careful that it doesn’t break.
Vinyl tape (Wide) (
)
• Apply after carrying out
a drainage test.
• To carry out the drainage
test, remove the air
fi lters and pour water
into the heat exchanger.
Saddle (
)
Installation parts you
should purchase (
)
A
Indoor
unit
B
Outdoor
unit
IMPORTANT
Begin the installation job from
the “Indoor Unit” installation.
•
This illustration is for
explanation purposes only.
The indoor unit will actually
face a different way.
A
min
= (m
c
/ (2.5 × (LFL)
(5/4)
× 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
)
h
0
= Installation height of the appliance : (2.2m for ducted)
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 × LFL × h
0
)
The higher value shall be taken when determining the room area.
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