MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF
Installation 67
Indoor/Outdoor Unit Signal Wire
Connect the wire according to their numbers.
Wrong connection may cause malfunction.
Wiring Connection
Seal the wiring connection with the insulation material, or the condensing dew will be caused.
NOTE
The air-conditioners can connect with Central Control Monitor (CCM). Before operation, please wiring correctly and set system
the air-conditioners can connect with Central Control Monitor (CCM). Before operation, please wiring correctly and set system
Fig.6-3
6.2 Indoor Unit Wiring
Power Supply
Table 6-2
Indoor unit/Outdoor unit Signal wire (Weak electric signal) (mm
2
)
3-core shielded wire 3X0.75
1. Signal wire is 3-core, polarized wire. Use 3-core shield wire to prevent interference. The grounding method
now is grounding the closed end of the shield wire and opening (insulating) at the end. Shield is to be
grounded.
2. The control between outdoor unit and indoor unit is BUS type. An address is set on field during the
installation.
CAUTION
The wire diameter and continuous length are under the condition that the voltage vibration is within 2%. If the continuous length is
exceed showing value, choose the wire diameter follow relevant regulation.
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