Gree Ultra Heat GMV Multi VRF Series Owner's Manual page 34

Ultra Heat GMV Multi VRF_Heat Recovery Serial
(7) An all-pole disconnection switch having a contact separation of at least 3mm (1/8inch) in all poles should be
connected in fixed wiring.
4.6.3 Connection of power cord
(1) Before obtaining access to terminals, all supply circuits must be disconnected.
(2) If units are type I electrical appliances, they must be reliably grounded.
(3 Ground resistance must be in accord with requirements of local standard.
(4) The green-yellow wire within units are ground wire. Do not use it for other purposes. Nor should it be cut off or
secured by tapping screws. Otherwise, it may cause electric shock.
(5) Power supply at user side must have reliable ground terminal. Do not connect ground wire to the following places:
1) Water pipe.
2) Gas pipe.
3) Drainage pipe.
4) Other places that are considered by professionals as unreliable.
(6) Power cord and communication wire should be separated, with a distance of more than 20cm (7-7/8inch).
Otherwise, system's communication may not work well.
Steps and graphic of power cord and communication cord connection:
(1) Knock off the cross-through opening that's used for leading the external power cord, with the
cross-through rubber ring on the opening. Then lead the cable through the opening. Connect L1,
L2, L3 of power cord and ground wire separately to the positions on wiring board (for power
supply) that are marked with L1, L2, L3 and the ground screw nearby.
Knock off the cross-through opening that's used for leading the external communication cord,
with the cross-through rubber ring on the opening. Then lead the cable through the opening.
Connect D1, D2, G1, G2 of communication cord separately to the positions on wiring board that
are marked with D1, D2, G1, G2.
(2) Use cable ties to tie the cable securely.
(3) Use cable ties to tie the rubber rings securely.
(4) Lead the power cord as instructed in the graphic below:
WARNING
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