Gree H2M Bedienungsanleitung

Owner's Manual

Original Instructions

H2M Gateway

Models:

ME31-33/EH1(M)

To Users

Thank you for selecting Gree’s product. Please read this instruction manual

carefully before installing and using the product, so as to master and correctly use the

product. In order to guide you to correctly install and use our product and achieve

expected operating effect, we hereby instruct as below:

(1) This appliance is not intended for use by persons (including children) with

reduced physical, sensory or mental capabilities, or lack of experience and

knowledge, unless they have been given supervision or instruction

concerning use of the appliance by a person responsibility for their safety.

Children should be supervised to ensure that they do not play with the

appliance.

(2) This instruction manual is a universal manual, some functions are only

applicable to particular product. All the illustrations and information in the

instruction manual are only for reference, and control interface should be

subject to actual operation.

(3) In order to make the product better, we will continuously conduct

improvement and innovation. We have the right to make necessary revision

to the product from time to time due to the reason of sales or production,

and reserve the right to revise the contents without further notice.

(4) For personal injury or property loss and damage caused by improper

operation such as improper installation and debugging, unnecessary

maintenance, violation of related national laws and rules and industrial

standard, and violation of this instruction manual, etc., we will bear no

liability.

(5) The final right to interpret for this instruction manual belongs to Gree

Electric Appliances Inc. of Zhuhai.

III

Contents

1 SAFETY NOTICES (PLEASE BE SURE TO ABIDE)................................1

2 OPERATION NOTICES..............................................................................2

3 FUNCTIONS INTRODUCTION..................................................................3

4 PARTS........................................................................................................3

5 DETAILED INTRODUCTION......................................................................4

5.1 PORTS..............................................................................................................................4

5.2 LED DISPLAY....................................................................................................................5

5.3 DIP SWITCH .....................................................................................................................6

6 INSTALLATION........................................................................................12

6.1 DIMENSIONS AND INSTALLATION METHOD...............................................................12

6.2 COMMUNICATION CONNECTION ................................................................................14

APPENDIX A: ADDRESS TABLE OF DIP SWITCH ..................................21

H2M Gateway

1 Safety Notices (Please be sure to abide)

Warning: If not abide strictly, it may cause severe damage to the unit or

the people.

Note: If not abide strictly, it may cause slight or medium damage to the unit

or the people.

This sign indicates that the operation must be prohibited. Improper

operation may cause severe damage or death to people.

This sign indicates that the items must be observed. Improper operation

may cause damage to people or property.

WARNING!

This product can’t be installed at corrosive, inflammable or explosive

environment or the place with special requirements, such as kitchen. Otherwise,

it will affect the normal operation or shorten the service life of the unit, or even

cause fire hazard or serious injury. As for above special places, please adopt

special air conditioner with anti-corrosive or anti-explosion function .

H2M Gateway

2 Operation Notices

Notice!

(1) This appliance is powered by the indoor unit of air conditioner. Do not connect

other power source to this appliance, otherwise it may cause fire hazard and

damage the appliance.

(2) Before touching the electric components, please be sure the appliance is

disconnected to power.

(3) Never install the appliance in a damp place or allow it to be exposed to direct

sunlight.

(4) Never install the appliance near heat source or a place that may easily get

splashes of water.

(5) Please install the appliance in a place without electromagnetic interference or

dusty particles.

(6) Make sure that the communication wires are connected to the correct ports,

otherwise communication failure will occut and may damage the appliance.

(7) Once wires are connected, use insulative tape to protect the wires from

oxidation and short circuit.

(8) Working conditions for the appliance:

①Temperature: -20～+60℃;

②Relative humidity: ≤85%;

③Install it indoors (better to install it in an electric control cabinet), avoid direct

sunlight, rain and snow.

(9) All the graphics in the instruction manual are for reference only.

H2M Gateway

3 Functions Introduction

Gree H2M Gateway can exchange data with air conditioners and the upper units

of Modbus. It provides standard Modbus RTU protocol.

This gateway is applicable for Gree Multi VRF Units (CAN Communication). The

upper units of Modbus can control the VRF indoor units (CAN Communication)

through H2M Gateway. One upper unit of Modbus can directly control one (or more)

indoor units.

Fig.3.1 Exterior Sketch of H2M Gateway

4 Parts

Please check whether the following items are all included before installation.

H2M Gateway

1 set

Instruction Manual

1 copy

Installation screw ST4.2X13MB

2 pieces

H2M Gateway

5 Detailed Introduction

5.1 Ports

5.1.1 Diagram of Ports

Fig.5.1 Diagram of Ports

H2M Gateway

5.1.2 Description of Communication Ports

HBS communication port: It is connected to the indoor unit of air conditioner

through a 2-core communication wire. It is used for the indoor unit to supply power to

H2M Gateway and communicate with H2M Gateway;

RS485 communication port: It is connected to Modbus through a 2-core

communication wire. It is used for the communication between H2M Gateway and the

upper unit of Modbus.

IO port: Reserved function port.

5.2 LED Display

The following table is a detailed description about the LEDs indicated in Fig.5.1.

POWER

It lights up if the power supply of H2M Gateway is normal.

HBS

It will be blinking if H2M Gateway sends data to the indoor unit.

It will be blinking if H2M Gateway receives data from the indoor

unit.

RS485

It will be blinking if H2M Gateway sends data to Modbus.

It will be blinking if H2M Gateway receives data from Modbus.

Note: If the gateway receives no data from Modbus for a long time, RX

indicator of RS485 will be blinking once every 6 seconds.

H2M Gateway

5.3 DIP Switch

Attention! Before using this device, please set its DIP switch first; otherwise the

device will not work!

Gateway’s DIP switch is built within. Before setting, screw off the locating screws

on the sides of the gateway and then open the cover. The allocation of DIP switch is

shown below. It is combined with address DIP switch (S1&S2) and function DIP

switch (S3).

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