– 64 –
Switches and connectors on the circuit board
Remove the 4 screws to detach the cover.
* Refer to “Advanced system” for how to set the switch.
CN705(5P)
CN706(2P)
SW701
ON
OFF
Changeover switch for
pulse / static
SW701 (No.1)
Pulse: ON
Static: OFF
Connectors for the external input
Connect the remote ON/OFF adapter
(NRB-1HE: sold separately)
No voltage a-contact input
(Operation remote controller
valid / invalid, fan speed High
/ Low)
Voltage of DC12 V or 24 V
(ON/OFF)
(VNK type only)
Wiring connection
NOTE
• When performing transition wiring for the remote controllers, polarity is not needed to be considered when connecting
wires to the terminal A and B on the indoor unit terminal block.
• Leave an extra length of 100 mm for each wiring so that servicing can be performed more easily.
• Low voltage circuit is applied for the remote controller.
Perform wiring so that each wire corresponds with the proper terminal number; otherwise, an electrical fault may
occur.
Wiring in the electrical control box of the indoor unit
Fix the wires using a cord clamp. Do not stretch them tight for wiring.
Wiring the indoor unit
Connect the wire matching the terminal numbers.
Incorrect connection causes a trouble.
Earth screw
Humidistat terminal block (VNK type only)
External output terminal block
Communication wire terminal block
Wiring between indoor and outdoor unit (U1, U2)
Wiring for the remote controller (A, B)
Power supply terminal block (R (L), S (N))
Operation output
Common
External damper output (3-4)
Abnormal / Bypass mode output (3-5)
Cord clamp
40
60
10
10
R
(L)
S
(N)
Earth wire
Wiring for the
remote controller
Wiring between
indoor and outdoor
unit
Earth Screw
2 m
m
or l
e
ss
Power supply
wire
127-EN
128-EN
+00EH99887601-2_01EN.book Page 64 Thursday, September 15, 2016 5:23 PM
