Gree GMV-Y36WL/A-T Bedienungsanleitung

Photovoltaic Multi VRF for North

America

Capacity: 36 kBtu/h~60 kBtu/h

Rated Frequency: 60 Hz

CONTENTS

PRODUCT..................................................................................................................................................... 2

1 PRODUCT LIST................................................................................................................................................ 2

2 PRODUCT FEATURES................................................................................................................................... 2

3 SPECIFICATIONS............................................................................................................................................ 8

4 PRODUCT CAPACITY CORRECTION....................................................................................................... 10

5 PRINCIPAL OF OPERATION........................................................................................................................11

CONTROL................................................................................................................................................... 14

1 UNITS’ CONTROL.......................................................................................................................................... 14

2 WIRED CONTROLLER................................................................................................................................. 16

3 REMOTE CONTROLLER ............................................................................................................................. 22

4 MONITORING SOFTWARE.......................................................................................................................... 24

INSTALLATION...................................................................................................................................... 69

1 ENGINEERING INSTALLATION PREPARATION AND NOTICE........................................................... 69

2 INSTALLATION MATERIALS SELECTION............................................................................................... 71

3 INSTALLATION OF OUTDOOR UNIT........................................................................................................ 72

4 INSTALLATION OF ELECTRONIC EXPANSION VALVE ASSY (UNIT WITH EXTERNAL EXV).... 75

5 INSTALLATION OF REFRIGERANT PIPELINE....................................................................................... 75

6 INSTALLATION OF CONNECTION PIPE.................................................................................................. 79

7 ELECTRIC WIRING....................................................................................................................................... 86

8 DEBUGGING OF UNIT.................................................................................................................................. 88

MAINTENANCE..................................................................................................................................... 92

1 MALFUNCTION LIST.................................................................................................................................. 101

2 TROUBLESHOOTING................................................................................................................................. 107

3 POWER DISTRIBUTION OF UNIT.............................................................................................................117

4 REMOVAL OF PARTS..................................................................................................................................119

5 COMMON MAINTENANCE........................................................................................................................ 138

6 EXPLODED VIEW OF UNIT AND PARTS’ LIST..................................................................................... 142

GREE Photovoltaic Multi VRF for North America

PRODUCT

GREE Photovoltaic Multi VRF for North America

PRODUCT

1 Product List

Model

Product

Code

Cooling

Capacity

Heating

Capacity

Power

Supply

Refrigerant

Appearance

Kw(Btu/h)

c))

GMV-Y36WL/A-T(U)

CN870W

0210

(37500)

12.3

(42000)

208/240V

60Hz

R410A

GMV-Y48WL/A-T(U)

CN870W

0200

14.1

(48000)

15.8

(54000)

GMV-Y60WL/A-T(U)

CN870W

0190

15.8

(54000)

17.6

(60000))

2 Product Features

2.1 General introduction

Gree DC Inverter Multi VRF System II is the latest generation of DC inverter units.

One set of air-cooled outdoor unit can be connected with multiple direct evaporation

indoor units that are of the same or different forms and capacity. This refrigerating system

can directly provide air conditioning for one or more areas, and is applicable for residential

and light commercial uses. It features high energy efficiency, strong anti-interference

capability, long connectable pipe, wide operation range, good sound quality, intelligent

capacity regulation, complete protection, etc.

2.1.1 Features

（1）

Super high energy efficiency

The 2nd generation of DC Inverter Multi VRF System adopts DC motor to realize

complete direct current and upgrade the energy efficiency. SEER is up to 16; HSPF is up

to 9.

（2）

New generation CAN bus communication

Due to the latest communication method—CAN Bus Communication, system’s

anti-interference capability is stronger and the control on indoor units is more accurate,

with higher reliability. Specialized shield wire is no more needed and ordinary

communication wire can be applied in the construction, which has increased the

installation flexibility.

（3）

Long connection pipe

The maximum length of connection pipe is 300m (984ft) (in total) and the farthest

GREE Photovoltaic Multi VRF for North America

connection pipe between indoor and outdoor units can be 120 (394ft) m’s long, which has

extended the installation condition and reduced the limit of installation distance.

（4）

Wide operation range

Units can operate reliably in a wide temperature range (cooling: -5~48℃(23~118°F) ,

heating: -20~27℃(-4~81°F) )

（5）

Fine sound quality

Through a series of optimized measures, system has reduced the throttle noise and

oil return noise of indoor units, gas bypass noise, etc. so that units are more comfortable

regarding sound quality.

（6）

Intelligent PID capacity regulation

With the independently developed PID capacity regulation technology, units are able

to control the indoor ambient temperature more quickly and reduce the fluctuation of room

temperature.

（7）

Complete protection

Units are equipped with a series of protection to accurately identify errors and protect

the units, which has ensured reliable and safe operation.

2.2 PV Direct-driven Inverter Multi VRF System

2.2.1 Working principle of PV Direct-driven Inverter Multi VRF System

PV power generation system is a power generation unit for PV direct-driven inverter

multi VRF system and provides clean and renewable energies for PV direct-driven

inverter multi VRF system. The left picture is the working principle chart of PV

direct-driven inverter multi VRF system combined with one single multi VRF system and

PV power generation system. As you can see, the sunlight irritates to the surface of the

PV sub-assy, according to the photovoltaic effect, solar energy will be converted to DC

electric power, then DC electric power shall be input to the DC bus of PV direct-driven

inverter multi VRF system. When there’s residual electric power or the compressor of

multi VRF unit is not operating, DC will be converted to AC electric through current

converter, meanwhile, conduct quality treatment to the electric energy, then combine the

qualified AC to the power grid. In case several multi VRF systems are operating, an AC

power distribution cabinet is needed to converge the AC, then combine them to the

power grid, as is shown in the right picture. When PV power generation capacity is

insufficient for the compressor of multi VRF system or PV is not generating power, the

GREE Photovoltaic Multi VRF for North America

public power grid will supply electricity for the compressor of multi VRF system. The five

working modes can be switched seamlessly according to actual operation situation of

PV power generation system and multi VRF unit.

2.2.2 Five working modes of PV Direct-driven Inverter Multi VRF System

Take a PV direct-driven inverter ODU as an example to introduce the 5 working

modes of PV direct-driven inverter multi VRF unit.

2.2.2.1 Pure air conditioner working mode

Pure air conditioner working mode means that, when PV power generation system

is not generating power, national power grid will supply electricity to the main unit, as is

shown in the following picture, at this time, the system equals to a regular high-efficiency

permanent magnet synchronous inverter multi VRF unit.

GREE Photovoltaic Multi VRF for North America

2.2.2.2 Pure PV power generation working mode

Pure PV power generation working mode means that, when the multi VRF system is

not working, the electric power distributed by the PV power generation system will be

supplied to the national power grid, as is shown in the following picture, at this time, the

multi VRF will provide the PV inverter function and the system equals to a regular PV

power station.

GREE Photovoltaic Multi VRF for North America

2.2.2.3 PV air conditioner working mode

PV air conditioner working mode means that, when the power of PV power

generation equals to power consumption of multi VRF system, the distributed electric

energy of PV system will be applied to the operating working mode of multi VRF unit, as

is shown in the following picture, at this time, the PV power generation system can

realize self-sufficiency of electric power and “zero electricity consumption”.

2.2.2.4 PV air conditioner and system power generation working mode

PV air conditioner and system power generation working mode means that, when

the power of PV power generation is higher than the power consumption of multi VRF

system, the distributed electric energy of PV system will satisfy the operation of multi

VRF system preferentially, the surplus electric charge will be supplied to national power

grid, as is shown in the following picture:

GREE Photovoltaic Multi VRF for North America

2.2.2.5 PV air conditioner and system power consumption working mode

PV air conditioner and system power consumption working mode means that, when

the power of PV power generation is lower than the power consumption of multi VRF

system, the distributed electric energy of PV system is insufficient to drive the normal

operation of multi VRF system, the national power grid shall supplement the electric

charge, as is shown in the following picture.

GREE Photovoltaic Multi VRF for North America

2.2.3 PV system components

In PV direct-driven inverter multi VRF system, major PV system components

include PV sub-assy and more. Through cable connection, distribution and

transportation of electric energy is completed.

2.2.3.1 PV sub-assy

PV sub-assy is the core part of PV power generation system. By utilizing the

photovoltaic effect, the radiation of sunlight is converted to electric energy. These

electric energies can be used directly, combined to national power grid, or stored in

storage battery. In current market, the major PV sub-assy include monocrystaline silicon

sub-assy, polycrystalline silicon sub-assy and Thin film sub-assy. The following picture

is the appearance of these three sub-assys.

monocrystaline silicon sub-assy polycrystalline silicon sub-assy Thin film sub-assy

3 Specifications

3.1Outdoor Unit

Model

GMV-Y36WL/A-T(U)

GMV-Y48WL/A-T(U)

GMV-Y60WL/A-T(U)

Cooling capacity

14.1

15.8

Btu/h

37500

48000

54000

Heating capacity

12.3

15.8

17.6

Btu/h

42000

54000

60000

Circulating air volume

m3/h

6000

6300

6600

CFM

3531

3708

3884

Noise

dB(A)

Refrigerant charge

volume

3.3

116

Power supply

208/240V～60Hz

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