Gree GMV-ND22T/C-T User Manual

Multi Variable Air Conditioners Cassette Type Indoor Unit
17
Fig.5.2
(1) Detach the electric box lid.
(2) Let the power cord pass through the wiring through-holes.
(3) Connect wires according to Fig.5.2.
(4) Fix the power cord with wiring clamp.
5.3 Connection of Communication Wire between Indoor Unit and Outdoor
Unit (or Indoor Unit)
(1) Detach the electric box lid.
(2) Let the Communication cable pass through the wiring through-holes.
(3) Connect the communication wire to terminal D1 and D2 of indoor 4-bit wiring board, as
shown in Fig.5.3.1.
Fig.5.3.1
(4) Fix the communication cable with clamp of electric box.
(5) For more reliable communication, make sure connect the terminal resistor to the most
downstream IDU of the communication bus (terminal D1 and D2), as shown in Fig. 5.3.2,
terminal resistor is provided with each ODU.

Gree GMV-ND22T/C-T Specifications

General

Brand	Gree
Model	GMV-ND22T/C-T
Category	Air Conditioner
Language	English

Summary

Safety Notices (Please be Sure to Abide)

General Operational and Environmental Safety

Covers prohibited operations, environmental restrictions, and general safety guidance.

Installation and Electrical Safety

Focuses on safe installation, grounding, and electrical connection procedures.

Refrigerant Handling Safety

Safety measures for handling R410A refrigerant leaks.

Preparations for Installation

Installation Instructions

Indoor Unit Installation

Step-by-step guide for mounting the indoor unit and ensuring proper suspension.

Refrigerant Pipe Connection

Instructions on how to properly connect the refrigerant piping.

Drainage Pipe Installation and Drainage System Testing

Guidance on installing the drain pipe and testing the drainage system.

Wired Controller Installation

Wiring Work

Connection of Communication Wire between Indoor Unit and Outdoor Unit (or Indoor Unit)

Connection of Communication Wire for Wired Controller

Instructions on Connecting Wired Controller and Indoor Units Network

Routine Maintenance

Table of Error Codes for Indoor Unit

Troubleshooting