maximum power (maximum amps) of the unit.
3. Improperly installed and grounded field wiring poses fire & electrocution hazards. For high
voltage connections, flexible electrical conduit is recommended whenever vibration
transmission may create a noise problem within the structure. To avoid these hazards, you
MUST follow requirements for field wiring installation and grounding as described in the
National Electrical Codes (NEC) and your local/state electrical codes. All field wiring MUST be
performed by qualified personnel. Failure to follow these requirements could result in death or
serious injury.
4. The communication wiring between the indoor and outdoor units should be 18 AWG stranded,
twisted and shielded wire with an absolute maximum length of 230.0 ft. (70m). Shorter line
lengths between the indoor and outdoor units allow for more reliable communication and
reduce the risk of electrical interference. Please select the appropriate line length as per the
actual installation conditions. The communication lines cannot be spliced together
5. For the two-wire wired controller: The communication distance between the main board and
the wired controller can be up to 65 ft. (the standard distance is 26 ft.) To splice in the
additional length required, use 18 AWG two conductor twisted, stranded shielded wire.
6. The w ire size of the com m unication line should be no less than 18 AW G . Its recom m ended to
use 18 AWG stranded, twisted and shielded wire as the communication line.
4 Installation of the Unit
4.1 Installation of the Indoor Unit
4.1.1 Indoor unit dimensions
WARNING!
(1) Install the indoor unit in a location which can withstand a load of at least five times the weight
of the main unit and which will not amplify sound or vibration.
(2) If the installation location is not strong enough, the indoor unit may fall and cause injuries.
(3) If the job is done with the ceiling panel frame only, there is a risk that the unit will come loose.
The unit must be adequately supported.
MS-SVN043-EN
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