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11. Installation Instruction
11.1 Select The Best Location
11.1.1 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.
Refrigerant piping size
Outdoor Unit
CU-4Z80***
CU-5Z90***
Liquid - side
ø 6.35 t0.8
ø 6.35 t0.8
Gas - side
ø 9.52 t0.8
*(ø 12.7 t0.8)
ø 9.52 t0.8
*(ø 12.7 t0.8)
*In case of indoor is CS-Z71***, CS-TZ71***,
CS-TZ60***, CS-TE60***, CS-E21***, then ø 12.7 t0.8
gas-pipe size must be used together with CZ-MA2P
(pipe size expander)
Table A
MODEL
Maximum Total Piping
Length for Add. Gas
(m)
Additional
Refrigerant
(g/m)
Wall
Mounted
Indoor
A
min
(m²)
Mini Cassette
Indoor
A
min
(m²)
Ducted
Indoor
A
min
(m²)
CU-4Z80***
45
20
9.89
6.62
6.62
45
20
11.15
7.46
7.46
CU-5Z90***
If total piping length of all indoor units exceed the
maximum total length listed above, additionally
charge with 20 g of refrigerant (R32) for each
additional meter of piping.
A
min
= (M / (2.5 × (LFL)
(5/4)
× h
0
))
2
A
min
= Required minimum room area, in m
2
M
= Required charge amount in appliance, in kg
LFL
= Lower flammable limit (0.306 kg/m
3
)
h
0
= Installation height of the appliance (1.8 m for Wall
Mounted, 2.2 m for Mini Cassette & Ducted).
•
This illustration is for explanation purposes only.
3/8" Gas side piping (
)
1/4" Liquid side piping (
)
Additional drain hose (
)
Connection cable (
)
Power supply cord (
)
Outdoor Unit Installation Diagram
Installation parts you
should purchase (
)
*
Note:
Respective indoor unit installation procedure shall
refer to instruction manual provided in the indoor unit
packaging.
It is advisable to avoid
more than 2 blockage
directions. For better
ventilation & multiple-
outdoor installation,
please consult
authorized dealer/
specialist.
Allowable piping length
Outdoor Unit
CU-4Z80***
CU-5Z90***
Allowable piping length of each indoor unit (min. ~ max.)
3 m ~ 25 m
3 m ~ 25 m
Allowable total piping length of all indoor unit
70 m or less
80 m or less
Outdoor unit located on upper side
15 m or less
15 m or less
Height difference between indoor and outdoor unit
Outdoor unit located otherwise
7.5 m or less
7.5 m or less
Outdoor unit located on upper side
7.5 m or less
7.5 m or less
Height difference between indoor unit
Outdoor unit located otherwise
15 m or less
15 m or less
AMP Air Conditioning
www.ampair.co.uk | [email protected]
