Gree 2000 Manual de usuario

Gree 2000 Technical Service Manual

Introduction

This technical manual describes large amount of information regarding Gree 2000 type air conditioner,

including pictures, technical parameters, explosive views, parts and components list and circuit diagrams etc.

Engineers, service staff and dealers of Gree hold that this is the most convenient way to know more about

the information of our product technology.

Technical Service Department, Gree Electric Appliances, Inc. Of Zhuhai

March, 2004

Table of Contents

1 Summary and features...........................................................................................................................1

2 Specifications and technical parameters...............................................................................................3

3 Part name ................................................................................................................................................4

4 Outline and installation dimension.....................................................................................................5-6

5 System schematic diagram.....................................................................................................................7

6 Electrical circuit diagram ......................................................................................................................7

7 Function manual and operation method of remote controller.......................................................8-21

9 Explosive view and parts and components list..............................................................................22-30

8 Disassembly procedures..................................................................................................................31-34

10 Care and maintenance.....................................................................................................................35-36

11 Installation guide..............................................................................................................................37-42

12 Malfunction analysis........................................................................................................................43-45

1. Summary and features

Models Remark

2. Specifications and technical parameters

3. Part name

Indoor unit

Air in

Air out

Signal receiver

* When air conditioner is turned on by the wireless remote controller, the run indicator is on

(green). This light blinks while defrosting.

Air in

Outdoor unit

Air out

Front panel

Filter

Purifier filter

Operation switch

Electric box cover

LCD

Guide louver

Power plug

Drainage hose

Big handle

Air outlet vent grill

Wireless remote

controller

4. Outline and installation dimension

4.1. Outline and installation dimension of indoor unit

Air inlet hole

Right piping hole flag

Piping hole flag

Liquid crystal display and reception window

Air inlet hole

Rear view

Left

Ceiling

Right

Wall mounting plate

4.2. Outline and installation dimension of outdoor unit

Unit: mm

Above 60cm

Bolt

Nut

Spanner

5. System schematic diagram

Evaporator Cross flow fan

Refrigerant flowing direction

when heating

Refrigerant flowing direction

when cooling

One-way valve Filter

Main capillary

Auxiliary capillary

Axial flow fan

Condenser

Electromagnetic

four-way valve

Gas liquid separator Compressor

When powered on, indoor and outdoor unit will start to run. When the system operates in cool mode, the compressor sucks low-temperature,

low-pressure refrigerant gas from indoor evaporator, compresses it into high-temperature, high-pressure refrigerant gas and discharges it into outdoor

heat exchanger. With the help of axial flow fan, the gas transfers its latent heat into outdoor air and becomes refrigerant liquid. The liquid is throttled

by throttling device and changes into low-temperature and low-pressure liquid and then flows into indoor heat exchanger. With the help of indoor unit

cross flow fan, the liquid becomes low-pressure refrigerant gas after it exchanges heat with indoor air. Such cycles are repeated continuously to

achieve cooling effect. When the system operates in heat mode, the four-way valve changes its way and the refrigerant flows into the reversed cycle

of the cool mode. The refrigerant discharges its latent heat indoor through the heat exchanger, and sucks heat from outdoor heat exchanger and forms

the heat pump cycle to achieve heating effect.

6. Electrical circuit diagram

These circuit diagrams are subject to change without notice. Please refer to the one supplied with the unit.

7. Function manual and operation method of remote controller

7.1 Temperature parameters

◆Room set temperature（Tset）

◆Room ambient temperature（Tamb）

◆Outdoor ambient temperature（Toamb）

◆Evaporator temperature（Teva）

◆ Surface temperature of heat exchanger copper pipe of outdoor unit Ttub1

◆ Surface temperature of heat exchanger copper pipe of indoor unit Ttub2

7.2 Fundamental functions

7.2.1 Cool mode

1. The condition and process of cooling

◆If Tamb≥Tset, COOL mode will act, the compressor, outdoor fan and indoor fan will run, and the indoor fan will run at the set

speed.

◆If Tamb≤Tset－2℃,the compressor will stop , the outdoor fan will delay 30sec to stop and the indoor fan will run at the set speed.

◆If Tset-2℃＜Tamb＜Tset, the unit will keep running in the previous mode.

Ambient temperature Tamb

Set temperature Tset

Tset -2℃

3 min

Compressor

Outdoor fan

COOL mode will act

Keep running in original state

COOL mode will stop

Indoor fan Run at the set speed

Run Stop

◆In this mode, the reversal valve will not be powered on and the temperature setting range is 16℃~30℃

2. Antifreezing protection

In COOL mode, when the antifreezing protection is detected, the compressor will stop and the outdoor fan will stop after 30sec. The

indoor fan and swing fan will keep running in the original mode. When antifreezing protection is eliminated, the unit will restart

automatically and enter into original running state.

7.2.2 DRY mode

1. The condition and process of dehumidifying:

◆If Tamb>Tset, DRY mode will act, the indoor fan, outdoor fan and compressor will run, and the indoor fan will run at low speed

◆If Tset-2℃≤Tamb≤Tset, the unit will keep running in the original mode.

◆If Tamb＜Tset－2℃,the compressor will stop, the outdoor fan will delay 30sec to stop and indoor fan will run at low speed.

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