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36
10.2 CU-4E24RBU
10.2.1 Select The Best Location
If an awning is built over the unit to prevent direct
sunli
ght or rain, be careful that heat radiat
ion from
the con
denser is not obstructed.
There should not be any animal or plant which
coul
d 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
sho
rt circuit of the discharged air.
Refrigerant piping size
Outdoor Unit CU-4E24***
Liquid - side ø1/4" (ø6.35 mm) thickness 1/32" (t0.8 mm)
Gas - side
ø3/8" (ø9.52 mm) thickness 1/32" (t0.8 mm)
(ø1/2" (ø12.7 mm) thickness 1/32" (t0.8 mm))
* In the case of indoor unit is CS-E24***, a gas-
pipe of ø1/2" (ø12.7 mm) thickness 1/32
"
(t0.8 mm) mu
st be used together
with CZ-MA2P
(pipe size
expand
er)
Outdoor Unit CU-4E24***
Min. total piping length for additional gas 147.6 ft (45 m)
If total piping length of all indoor units exceeds the
minimum len
gth listed above, charge ad
ditionally
with 0.2 oz
(20g) of refrigerant (R410A) for ea
ch
addition
al foot (meter) of piping.
10.2.1.1 Outdoor Unit Installation
Diagram
Allowable piping length
Outdoor Unit CU-4E24***
Allowable piping length of each indoor unit (min. ~ max.) 9.8 ft ~ 82.0 ft (3 m ~ 25 m)
Allowable total piping length of all indoor unit 229.6 ft (70 m) or less
Height difference between indoor and outdoor unit
Outdoor unit located on upper side
g
49.2 ft (15 m) or less
Outdoor unit located otherwise
h
24.6 ft (7.5 m) or less
Outdoor unit located otherwise
k
49.2 ft (15 m) or less
Height difference between indoor unit
Outdoor unit located on upper side
i
24.6 ft (7.5 m) or less
Outdoor unit located otherwise
j
49.2 ft (15 m) or less
•
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 (
)
Installation parts you
should purchase (
)
* Note:
Respective indoor unit installation procedure shall refer to
i
n
s
t
r
u
ctio
n
m
a
n
u
a
l
p
r
ovi
d
e
d
i
n
t
h
e
i
n
d
oo
r
u
n
it
p
a
c
k
a
g
i
n
g
.
It is advisable to avoid
more than 2 blockage
directions. For better
ventilation & multiple-
outdoor installation,
please consult authorized
dealer/specialist.
j
k
j
h
g
i
Outdoor unit
Outdoor unit
Outdoor unittinuroodnItinuroodnI
Indoor unit
Outdoor unit located
on upper side
Outdoor unit located
otherwise
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