23-EN
Installation Manual
– 23 –
<In the case of combining with outdoor units of Super Modular Multi System u series (SMMS-u)>
Uv
line and
Uc
line
(L2, L3, L4)
(2-core shield wire, non-polarity)
Wire size :
0.5 mm²
0.75 to 1.25 mm²
(Up to 500 m)
(Up to 1000 m)
Uh
line
(L1)
(2-core shield wire, non-polarity)
Wire size :
0.75 to 1.25 mm²
2.0 mm²
(Up to 1000 m)
(Up to 2000 m)
•
U (v, h, c)
line means of control wiring.
Uv
line : Between indoor and outdoor units.
Uh
line : Central control line.
Uc
line : Between outdoor and outdoor units.
•
Uv
line and
Uc
line are independent from another refrigerant line. Total length of
Uv
and
Uc
lines
(L3+L4)
in each refrigerant line is up to 1000 m.
* Even if the indoor unit and the remote controller are “other than U series”, the wiring
speci
fi
cation are the same.
[Uh line]
L1
= Up to 2000 m
[Uv and Uc line]
L2
= Up to 1000 m
(L3+L4)
= Up to 1000 m
Central control device
<U series>
Outdoor unit
(SMMS-u)
<U series>*
Indoor unit
<U series>*
Remote controller
