Gree GWHD(18)ND3CO Manual de instalação - Página 12

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INSTALLATION OF POWER AND WIRING

Step 9 (Cont'd)

Multiple Port Wiring Diagram

6. Tightly connect main power wires to outdoor unit terminal block per wiring diagram above.

7. Secure all wires inside wire clamp/strain reliefs.Verify wires are secure, not loose and no

external force on wires affects the connections at the terminals.

8. Replace service panel on right side of the outdoor unit.

9. Connect main power wires and conduit to unit. Disconnect switch box per manufacturer's

instructions, National Electrical Code (NEC) and local electrical codes.

C UTION

• Electrical disconnecting means must be provided and shall be located

within sight and readily accessible from the unit.

• Failure to follow this caution may result in equipment damage or

improper operation.

• All wires running from the indoor to outdoor unit must comply with

National Electrical Code (NEC) and local codes.

• No wire should be allowed to touch refrigerant tubing, compressor or

any moving parts.

• All wires must be connected firmly to terminal block to avoid unit

malfunction, overheating and possible fire hazard.

(Reference Only)

INSTALLATION OF POWER AND WIRING

Local codes may require a disconnect switch within sight of the indoor unit. Use a DFS Disconnect

Switch Accessory Kit (Part No: DFS-SWITCH-A) to break wires going to the N(1), 2, 3, terminals on

the indoor unit, as shown in the wiring diagram below:

C UTION

Never break or interrupt the ground wire with a switch or disconnect device.

Setting Master-Slave Indoor Units

Typically, the outdoor unit will respond to the indoor units on a first-come-first-served basis.A single

indoor unit may be programmed at the master zone.The master zone will always have priority over the

other indoor units. Setting an indoor unit as the master zone is not required for system operation.

To set an indoor unit as a master zone, locate master/slave configuration switches on the outdoor main

control board.The switch locations 1, 2, 3, 4, 5 correspond to Indoor units (or Ports) 1, 2, 3, 4, 5. Select the

master zone by setting the desired switch to the "On" position.The other switches need to be set in the

"Off" for slaves. By turning the switch from number to ON, the IDU with ON is set to be the master unit.

NOTE: This function is not valid on the 18,000 BtuH 2-Zone model.