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0# electric
control box
“ON/OFF” port
ON
Power (DC 12V)
Main control board is provided
0# electric
control box
“ON/OFF” port
OFF
Power (DC 12V)
Main control board is provided
Fig. 8-14 Wiring of “ON/OFF ” weak electric port
8.5.12 Control system and installation precautions
The remote function of “HEAT/COOL” must be set by DIP switch.
The remote function “HEAT/COOL” is effective when S5-3 is
chosen ON, at the same time, the wire controller is out of control.
Corresponding parallel connect the “HEAT/COOL” port of the
main unit’s electric control box,then, connect the “ON/OFF” signal
(provide by user) to the “HEAT/COOL” port of main unit as
follows.
Wiring method: Shorting the terminal block XT2 at 14 and 23
inside the electric control box to enable the remote function of
“HEAT/COOL”.
0# electric
control box
“HEAT/COOL” port
COOL
Power (DC 12V)
Main control board is provided
8.5.10 Wiring of “HEAT/COOL” weak electric port
0# electric
control box
“HEAT/COOL” port
HEA
T
Power (DC 12V)
Main control board is provided
8.5.11 Wiring of “ALARM” port CN85
electric control box
“ALARM” port CN85
Device provided
by user
Connect the device provided by user to the “ALARM” port CN85
of the module units as follows.
If the unit is operating unnormally, the ALARM port CN85 is closed,
otherwise, the ALARM port CN85 is open.
The ALARM ports CN85 are on the main control board. See the
wiring diagram for details.
a. Use only shielded wires as control wires. Any other type of wires
may produce a signal interference that will cause the units to
malfunction.
b. The shielding nets at both ends of the shielded wire must be
grounded. Alternatively, the shielding nets of all shielded wires
are interconnected and then connected to earth through or one
metal plate.
c. Do not bind the control wire, refrigerant piping and power cord
together. When the power cord and control wire are laid parallel,
they should be kept at a distance of more than 300 mm to prevent
signal source interference.
d. Pay attention to the polarity of the control wire when conducting wiring
operations.
Fig. 8-15 Wiring of “HEAT/ COOL” weak electric port
Fig. 8-16 Wiring of “ALARM” port CN85
Unit
Uint
Fig. 8-17-1 Control system and installation precaution (a)
Fig. 8-17-2 Control system and installation precaution (b)
Fig. 8-17-3 Control system and installation precaution (c)
Fig. 8-17-4 Control system and installation precaution (d)
XT2 (14)
XT2 (23)
XT2 (14)
XT2 (23)
XT2 (15)
XT2 (24)
XT2 (15)
XT2 (24)
80
Содержание MUENR-30-H9T
Страница 2: ...ES EN 3 57 Manual de instalaci n y usuario Installation and owner s manual 2...
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