Gree GMV-N140U/A-T Owner'S Manual Download Page 3

Page: 3 / 29

Contents

1 Safety Precautions ............................................................................................... 1

2 Product Introduction ............................................................................................. 3

2.1 Names of Key Components

.................................................................................................. 3

2.2 Overall System Connection Diagram

.................................................................................. 3

3 Preparations for Installation ................................................................................. 4

3.1 Before Installation

.................................................................................................................. 4

3.2 Standard Fittings

.................................................................................................................... 4

3.3 Selecting the Air Handling Unit

............................................................................................ 5

3.4 Selecting the AHU-KIT Unit

.................................................................................................. 5

3.5 Location for Installation

......................................................................................................... 6

3.6 Requirements for Communication Wire

.............................................................................. 7

3.7 Wiring Requirements

............................................................................................................. 8

4 Installation Instructions ......................................................................................... 9

4.1 Unit Dimensions and Maintenance Space

......................................................................... 9

4.2 Piping Installation

................................................................................................................. 11

4.3 EXV Installation

.................................................................................................................... 13

4.4 Installation of the Control Box

............................................................................................ 14

4.5 Installation of the Thermistors

............................................................................................ 16

4.6 Installation of the EXV Cable

.............................................................................................. 18

4.7 Installation of Wired Controller

........................................................................................... 18

5 Wire Connection .................................................................................................18

5.1 Connect Cables and Terminals of Wiring Board

.............................................................. 19

5.2 Power Cord Connection

...................................................................................................... 20

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

Unit)

...................................................................................................................................................... 20

5.4 Connect Communication Wire of Wired Controller

......................................................... 21

5.5 Illuminate for Connection of Wired Controller and Indoor Units (AHU-KIT) Network

6 Operation and Maintenance ................................................................................22

6.1 Before Operation

.................................................................................................................. 22

6.2 Test Operation

...................................................................................................................... 23

6.3 Routine Maintenance

........................................................................................................... 23

6.4 Disposal Requirements

....................................................................................................... 24

7 Table of Error Codes for Indoor Unit ....................................................................24

8 Troubleshooting ..................................................................................................25

Summary of Contents for GMV-N140U/A-T

Page 1: ...uture reference GREE reserves the right to interpret this manual which will be subject to any change due to product improvement without further notice GREE Electric Appliances Inc of Zhuhai reserves t...

Page 2: ...door unit and the air handling unit can both influence the overall performance of the unit please be sure to select appropriate outdoor unit air handling unit and AHU KIT unit according to actually ap...

Page 3: ...llation 13 4 4 Installation of the Control Box 14 4 5 Installation of the Thermistors 16 4 6 Installation of the EXV Cable 18 4 7 Installation of Wired Controller 18 5 Wire Connection 18 5 1 Connect C...

Page 4: ...ant leakage electric shock or fire hazard Please use specialized accessories or parts to carry out installation or water leakage electric shock fire hazard may resulted R410A refrigerant can produce p...

Page 5: ...is product or it will cause malfunction or electric shock Do not expose this product directly to water or place it in a damp or corrosive environment Do not repair this product by yourself Improper re...

Page 6: ...OPERATING INSTALLATION MANUAL FOR AHU KIT UNIT 3 2 Product Introduction 2 1 Names of Key Components Fig 2 1 No Name Control Box Expansion valve kit Box 2 2 Overall System Connection Diagram Fig 2 2...

Page 7: ...its composition changes and the system will not work properly c The connected air handling units must have heat exchangers designed exclusively for R410A Never use this appliance under inflammable and...

Page 8: ...tained at these test conditions evaporation temperature at air outlet of heat exchanger is 6 overheating degree of heat exchanger is 5 and the air return temperature is 27 DB 19 WB b The heat exchange...

Page 9: ...al 1 The EXV box can be installed inside and outside The control box should be installed inside 2 Do not install the EXV box in or on the outdoor unit 3 Do not put the option boxes in direct sunlight...

Page 10: ...power after all installation works are done 3 6 Requirements for Communication Wire Notes If the unit is installed in the place with strong electromagnetic interference shielded wire must be applied o...

Page 11: ...Air Switch Capacity A Ground Wire Power Cord Minimum Sectional Area mm 2 Minimum Sectional Area mm 2 GMV N140U A T 220 240V 1ph 50Hz 208 230V 1ph 60Hz 6 1 0 1 0 GMV N280U A T 6 1 0 1 0 GMV N560U A T...

Page 12: ...OR AHU KIT UNIT 9 4 Installation Instructions 4 1 Unit Dimensions and Maintenance Space 1 Size of control box for GMV N140U A T GMV N280U A T and GMV N560U A T Unit mm Fig 4 1 1 Maintenance space of c...

Page 13: ...INSTALLATION MANUAL FOR AHU KIT UNIT 10 2 Size of EXV box for GMV N140U A T and GMV N280U A T Unit mm Fig 4 1 3 Size of EXV box for GMV N560U A T Unit mm Fig 4 1 4 Maintenance space of EXV box Unit mm...

Page 14: ...r handling unit to EXV box is no more than 2 m L is to be considered as a part of the total maximum piping length See installation manual of the outdoor unit for piping installation 4 2 2 Piping Conne...

Page 15: ...2H 44 5 7 4 1 5 1 2H 51 4 7 4 1 5 1 2H 54 1 17 8 1 5 1 2H 4 2 4 Cautions for Brazing 1 Make sure there is nitrogen protection during welding Brazing without carrying out nitrogen replacement or relea...

Page 16: ...kit box securely with 4 screws through the provided holes 12 mm Notes Make sure that the EXV box is installed upwards Make sure there is enough free space in front and in the side of the box for futur...

Page 17: ...rol box with its hanger brackets to the mounting surface 2 Open the lid of the control box 3 For electrical wiring refer to the following contents 4 Install the screw nuts 5 Close the unnecessary open...

Page 18: ...Wired controller Notes The H M L of fan gear lines and the 1 2 of Lines of fault signal from external feedback are shorted by the factory default Neutral line of fan connects to the N It can be conne...

Page 19: ...of the heat exchanger contact your heat exchanger dealer 2 Gas RT2 Install the thermistor at the outlet of the heat exchanger as close as possible to the heat exchanger Fig 4 5 1 1 Liquid RT4 Gas RT2...

Page 20: ...xing the thermistor on the horizontal plane of copper tube within 30 and make them close together Fig 4 5 1 3 1 Fix the thermistor with insulating aluminum tape in order to ensure good heat transferen...

Page 21: ...lamp The connection of thermistor requires enough space 4 6 Installation of the EXV Cable Referring to the circuit diagram then connect the EXV cable to the circuit board of control box Be sure that t...

Page 22: ...to use twin twisted shield wire During wire connection please pay attention that the metal shield layer of the twin twisted wire must be grounded outer case in order to prevent the unit from electrom...

Page 23: ...ction of Communication Wire between Indoor Unit and Outdoor Unit or Indoor Unit 1 Detach the control box lid 2 Let the Communication cable pass through the wiring through holes 3 Connect the communica...

Page 24: ...Units AHU KIT Network 1 Communication wire of indoor unit and outdoor unit or indoor unit is connected to D1 D2 2 Wired controller is connected to H1 H2 3 One indoor unit can connect two wired contro...

Page 25: ...ON MANUAL FOR AHU KIT UNIT 22 Fig 5 5 6 Operation and Maintenance 6 1 Before Operation Notes Before initiating operation please read the operation manuals of outdoor unit AHU KIT unit and the air hand...

Page 26: ...sition 6 3 Routine Maintenance Warning 1 Only a qualified service person is allowed to perform maintenance 2 Before obtaining access to terminal devices all power supply circuits must be interrupted 3...

Page 27: ...mper Cap Error L2 E heater Protection LH Low Air Quality Warning dA Indoor Unit Hardware Address Error L3 Water Full Protection LC Outdoor Indoor Incompatibility Error dH Wired Controller PC Board Err...

Page 28: ...any heating sources or people in the room Doors or windows are open Obstacle at the air intake and outlet of the unit Setting temperature is too high or refrigerant is insufficient e g refrigerant lea...

Page 29: ...GREE ELECTRIC APPLIANCES INC OF ZHUHAI Add West Jinji Rd Qianshan Zhuhai Guangdong China 519070 Tel 86 756 8522218 Fax 86 756 8669426 E mail gree gree com cn www gree com...

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