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Panasonic CZ-CFUNC1U Manual de instalación Pagina 3

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Basic wiring diagram
(Example using an Intelligent Controller)
Wiring procedure
Wire up the Communication Adaptor control wire and Inter-unit control wiring as shown in the
fi gure below.
●
Inter-unit control wiring
Connect terminals 0 and 1 (LINK1)
on the Communication Adaptor signal
terminal strip CN2 to the inter-unit
control wiring terminals of the indoor
or outdoor unit. There is no polarity.
If connecting two inter-unit control
wiring systems, connect terminals 3
and 4 (LINK2) on CN2 in the same
manner.
●
Communication Adaptor control wire
Connect terminals 11 and 12 (ADAPT
+ and -) on the Communication
Adaptor signal line terminal strip
CN2 with the same terminals on the
other Communication Adaptor. The
terminals have polarity. Connect so
the positive and negative elements
are correct.
When connecting, be sure to use
crossover wiring, not a branching
confi guration.
Precautions for the Communication Adaptor control wire
(Some items are duplicated in other sections.)
(1) The overall length should be 3280 ft. or less.
(2) The communication wire has polarity. Connect so the positive and negative elements are
correct.
(3) Use only shielded wire. Be sure to ground only one end of the shielding.
(4) Be sure to use crossover wiring, not a branching confi guration.
* Connect the Intelligent Controller to the end of the crossover confi guration.
(5) Change the terminating resistance plug CN32 to the “B” side (with terminal resistance) on the
board for the Communication Adaptors (2 of them) at both ends of the confi guration.
(6) Do not hook more than 16 units up
to the Communication Adaptor. The
system you are using (such as an
Intelligent Controller) may have
further restrictions. Consult the
Installation Instructions for your
system.
* The Intelligent Controller has a
maximum restriction of seven
units.
(7) Make sure that high voltage AC
lines are not connected to the
Communication Adaptor control
wire or the inter-unit control wiring
terminals.
* If high voltage AC is accidentally
applied to the inter-unit control
wiring terminals, a fuse will blow to
protect the controller board.
If this happens, disconnect the AC
line, and connect the U2 terminal
wire of the inter-unit control wiring
to the spare terminal. (Do not
change the U1 terminal wire.)
Spare terminals are located right
next to U2.
Change terminal number 1 LINK1-
U2
→
to terminal number 2 (LINK1-
U2)
Change terminal number 4 LINK2-
U2
→
to terminal number 5 (LINK2-
U2)
3
G
W
Intelligent controller
Inter-unit control wiring
Inter-unit control wiring
Outdoor unit
Indoor unit
Indoor unit
Outdoor unit
Outdoor unit
Communication
Adaptor
Communication
Adaptor
Communication
Adaptor control
wire
G: Gas fl ow meter
W: Power fl ow meter
10 11 12
ADAPT
(RS485)
10 11 12
ADAPT
(RS485)
10 11 12
ADAPT
(RS485)
10 11 12
ADAPT
(RS485)
Communication
Adaptor 1
Communication
Adaptor 2
Communication
Adaptor 3
Communication
Adaptor 4
Intelligent
Controller
Communication
Adaptor
Intelligent
Controller
Communication
Adaptor
CN32
B
0
1
2
3
10
11
12
13
A
S1
CN1
BA BA
Terminating resistance
plug for Communication
Adaptor control wire
Terminating resistance
“off” (factory setting)
Terminating
resistance “on”
Panasonic_CZ-CFUNC1U_Eng.indd 3Panasonic_CZ-CFUNC1U_Eng.indd 3 2011/11/11 12:03:532011/11/11 12:03:53
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