MUND CLIMA MUCH-20-H4, Operation Manual, Page: 9 / 43

Ducted Split Type Air-Conditioning
5
4 Installation of Wired Controller and Project Debugging
4.1 Installation of Wired Controller
1 3 4 5 2
Fig.4.1: Sketch for Installation of Wired Controller
No. 1 2 3 4 5
Description
Socket’s base box
installed in the
wall
Soleplate of
controller
Screw M4X25
Front panel of
controller
Screw ST2.2X6.5
Fig.4.1: Sketch for Installation of Wired Controller. Pay attention to the following items during installation
of wired controller:
1) Cut off power supply of heavy-current wire embedded in mounting hole in the wall before installation. It
is prohibited to perform the whole procedure with electricity.
2) Pull out 4-core twisted pair line in mounting hole and then make it through the rectangle hole at the back
of controller’s soleplate.
3) Joint the controller’s soleplate on wall face and then fix it in mounting hole with screws M4X25.
4) Insert the 4-core twisted pair through rectangle hole into controller’s slot and buckle the front panel and
soleplate of controller together.
5) At last, fix the controller’s front panel and soleplate with screws ST2.2X6.5.
Caution:
During connection of wirings, pay special attention to the following items to avoid interference of
electromagnetism to unit and even failure of it.
1) To ensure normal communication of the unit, signal line and wiring (communication) of wired controller
should separate from power cord and indoor/outdoor connection lines. The distance between them should be
kept 20cm in min.
2) If the unit is installed at the place where there is interference of electromagnetism, signal line and wiring
(communication) of wired controller must be shielding twisted pair lines.