Construction
E - 16
Terminal board
for remote control
cabling
Terminal board
for remote control
cabling
Remote
control
cable
Remote
control
(parent)
Remote
control
(child)
Remote
control
(parent)
Remote
control
(child)
Separately
sold item
Separately
sold item
Separately
sold item
Separately
sold item
Bus system cable for
group control
Indoor/outdoor
operation cable
Grounding Grounding
Grounding
Grounding
Indoor
unit 1
Indoor
unit 2
Indoor
unit 3
Indoor
unit
Grounding Grounding
Grounding
Grounding
(Maximum 8 units can be connected)
Bus system cable for group control
Remote
control
Remote
control
wiring
Indoor/outdoor
operation cable
Separately
sold item
Indoor
unit(UH)
Indoor
unit 2
Indoor
unit 3
Indoor
unit 8
<Cable diagram of group control including multi-type indoor units>
Caution:Make sure there is no mistakes in the cabling. (Mistaken cabling will cause a breakdown.)
● Cabling procedure
Carry out the cabling according to the following procedure.
1)Connect the remote control to the remote control terminal board (1, 2) of the group indoor unit 1.
2)Connect (1, 2) of the remote control terminal of group indoor unit 1 to (1, 2) of the remote control
terminal of group indoor unit 2, using a 2-wire bus system. Next, from indoor unit 2 connect to the
remote control terminal board of the next unit(indoor unit 3) in a bus system. In this way, connect all
the indoor units in a bus system.
3)Connect the indoor/outdoor operation cable.
4)The remote control cable has no polarity.
■ Control with 2 remote controls
❋ Control with 2 remote controls allows one or several indoor units to be operated with two remote controls.
(A maximum of 2 can be connected)
●One indoor unit connected
to and operated by two
remote controls
●Two remote controls connected and operating
3. Points regarding electrical construction (indoor unit)
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