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TM MINI C VRF 8 12KW

ManualsBrandsSystemair ManualsAir ConditionersSYSVRF 120 AIR EVO C HP Q - VRF Mini outdoor inverter heat pump 12,2kW 1Ph/50hz
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8.3
- r communication wiring. Using other types of cable can lead to
interference and malfunction.
Indoor communication wiring:
The P Q E communication wires should be connected one unit after another in a daisy chain from the outdoor
unit to the final indoor unit. At the final indoor unit, a 120 resistor should be connected between the P and Q
terminals. After the final indoor unit, the communication wiring should NOT be continued back to the outdoor
unit that is, do not attempt to form a closed loop.
The P and Q communication wires should NOT be grounded.
The shielding nets of the communication wires should be connected together and grounded. Grounding can be
achieved by connecting to the metal casing adjacent to the P Q E terminals of the outdoor unit electrical control
box.
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