background image

Water-cooled Heat Recovery DC Inverter VRF 

 

Fig.2.2 

Fig.2.2 is the combination graph of Water-cooled Multi VRF System ODU and Multi VRF System 

IDU. IDU can be cassette type, one-way cassette type, wall-mounted type, duct type, etc. When any 

one IDU receives operation signal, ODU will start to work according to the capacity; when all IDUs 

stop, ODU will also stop.   

2.3 The Range of Production Working Temperature 

 - 

Water 

Temperature 

Water Max. Pressure 

Cooling operation 

10

(50

)~50

(122

1.96MPa 

Heating operation 

10

(50

)~50

(122

1.96MPa 

Heat recovery operation 

10

(50

)~45

(113

1.96MPa 

 

Beyond  the working Temperature Range may damage this product and will 

invalidate the warranty.

 

Содержание GMV-WQ120WM/A-F

Страница 1: ...Owner s Manual Original Instructions Commercial Air Conditioners Water cooled Heat Recovery DC Inverter VRF Models Single unit GMV WQ72WM A F U GMV WQ96WM A F U GMV WQ120WM A F U...

Страница 2: ...is damaged it should be replaced by the manufacturer its service agent or similarly qualified persons in order to avoid a hazard User Notice This appliance can be used by children aged from 8 years an...

Страница 3: ...pe 7 4 3 Installation of the Connection Pipe 13 4 4 Vacuum and Refrigerant Charge 16 4 5 Electric Wiring 19 4 6 System Communication 22 4 7 Connection Method and Steps for System Communication 27 4 8...

Страница 4: ...se ventilate the room immediately 8 Diameter of power cord should be large enough The damaged power cord and connection wire must be replaced with special cables 9 When the power cord is connected ple...

Страница 5: ...r fire hazard 27 Do not repair the unit by yourself Wrong maintenance may cause electric shock or fire hazard Please contact Gree appointed service center for help 2 Product Introductions Gree Water c...

Страница 6: ...en any one IDU receives operation signal ODU will start to work according to the capacity when all IDUs stop ODU will also stop 2 3 The Range of Production Working Temperature Water Temperature Water...

Страница 7: ...ODU 3 2 Installation Site Forbidden item Improper operation might lead to personal injury or even death Item needs to be followed Improper operation might lead to personal injury or property damage Se...

Страница 8: ...aintenance person can access the rear part of the unit Unit mm in Fig 3 1 3 3 Piping Work Requirements Requirements R410A Refrigerant System Outer diameter mm in Wall thickness mm in Type 6 35 1 4 0 8...

Страница 9: ...y DC Inverter VRF 6 4 Installation Instructions 4 1 External Dimensions and Mounting Holes Dimension of ODU Outline and External Dimensions of GMV WQ72WM A F U GMV WQ96WM A F U and GMV WQ120WM A F U u...

Страница 10: ...Recovery DC Inverter VRF 7 4 2 Connection Pipe 4 2 1 Schematic Diagram of Piping Connection Fig 4 2 1 4 2 2 Schematic Diagram of Piping Sequence GMV WQ72WM A F U GMV WQ96WM A F U and GMV WQ120WM A F...

Страница 11: ...39 3 8in when using N branches the length is N meters R410A Refrigerant System Allowable Value m ft Fitting Pipe Total length actual length of fitting pipe 300 984 1 4 L1 L2 L3 L4 L10 A11 A12 D 21 D22...

Страница 12: ...t the pipe size of the gas pipe and liquid pipe of main pipe according to the following table Outdoor Model Size of connection between outdoor unit and the first indoor branch Low pressure gas pipe mm...

Страница 13: ...of outdoor module Low pressure gas pipe mm in Liquid pipe mm in High pressure gas pipe mm in Q 72000 19 05 3 4 9 52 3 8 15 9 5 8 72000 Q 96000 22 2 7 8 9 52 3 8 19 05 3 4 96000 Q 120000 28 6 1 1 8 12...

Страница 14: ...52 3 8 6 35 1 4 9500 C 17100 12 7 1 2 6 35 1 4 17100 C 48500 15 9 5 8 9 52 3 8 4 2 5 8 Branch selection of downstream indoor unit of mode exchanger B1 B2 B3 R410A refrigerant system Total rated capaci...

Страница 15: ...ting with only one branch of mode exchanger it should use two branches of the same mode exchanger controlled for parallel connection Parallel connection Indoor unit Communication connection for mode e...

Страница 16: ...damage or personal injury 4 3 1 Precautions when installing the connection pipe 1 Conform to the following principles during piping connection Connection pipeline should be as short as possible The h...

Страница 17: ...t be damaged and even lead to refrigerant leakage 4 3 2 Y type manifold 1 Y type manifold Fig 4 3 2 2 Y type manifold has several pipe sections with different pipe size which is convenient to match wi...

Страница 18: ...horizontal and vertical installation of the Y type manifold should be applied Show as Fig 4 3 5 Fixing point 1 100 mm 3 94in on the main inlet manifold from the welding point Fixing point 2 200 mm 7...

Страница 19: ...ction for pipeline 1 Support should be made for hanging connection pipe Distance between each support cannot be over 1m 39 3 8in 2 Protection towards accidental damage should be made for outdoor pipel...

Страница 20: ...Added refrigerant quantity A for piping Liquid pipe length Added refrigerant quantity for each meter in of liquid pipe Diameter of liquid pipe mm in 28 6 1 1 8 25 4 1 22 2 7 8 19 05 3 4 15 9 5 8 12 7...

Страница 21: ...refrigerant charging amount R 5 0 5kg 11 0 11pounds After confirmed there is no leakage from system when the compressor does not operates charge additional R410A with specified amount to the unit thro...

Страница 22: ...the refrigerant may remain for example the basement 4 5 Electric Wiring 4 5 1 Wiring precautions 1 Wiring should conform to national rules All the parts materials electric work should be in accordance...

Страница 23: ...ure is 90 194 e g power cable with YJV cross linked copper insulated PE and PVC sheath is lying on the surface of slot If working condition is different please adjust the specification according to na...

Страница 24: ...rth wire Do not use it for other purposes Do not cut it off or secured by tapping screws neither Otherwise it may cause electric shock 5 Power supply on user side should be reliable earth terminal Do...

Страница 25: ...and the earth screw nearby 2 Fasten the power cord with cable tie 3 Wiring of power cable and communication wire for the ODU should refer to the marker of circuit diagram on front cover of electrical...

Страница 26: ...tion among IDUs 4 6 3 Selection and connection mode of GMV WATER communication material 4 6 3 1 Select communication wiring material If air conditioners are installed at the place with strong electro...

Страница 27: ...xisting shielded wire should be used Connection between IDU and wired controller figure Fig 4 6 2 Select communication wire between ODU and IDU Material Type Total Length L m of Communication Cable be...

Страница 28: ...ould be connected in series rather than in star Fig 4 6 4 Wrong connection Mode exchanger 1 Li1 Indoor unit 1 1 Indoor unit 1 2 Indoor unit 1 n n 8 Mode exchanger 2 Indoor unit 2 1 Indoor unit 2 2 Ind...

Страница 29: ...chnology is adopted for GMV WATER IDU and ODU No need to set address codes manually Only the addresses of master unit and central control are necessary to be set address of central control is only nec...

Страница 30: ...nication connection between IDU and ODU Install the centralized controller only when it is necessary Connect IDU and ODU by terminal D1 D2 of wiring board XT2 Connection graphs of single unit are show...

Страница 31: ...ction is not allowed 3 IDUs should be connected in series The last IDU should be connected with the communication matched resistor supplied on the list of ODU spare parts 4 7 2 Communication connectio...

Страница 32: ...ct parameter code to be P13 Press mode button to switch to parameter setting Then the parameter blinks Press button or button to select code to be 02 And then press confirm cancel to finish setting Pr...

Страница 33: ...t board remote receiver is used please use remote controller at the same time 4 8 External Electrical Wiring Diagram 1 Each unit should be equipped with a circuit breaker for short circuit and overloa...

Страница 34: ...r VRF 31 4 8 1 External wiring diagram of a single unit Fig 4 8 1 The maximum connect quantity of indoor units is dependent on the capacity of outdoor units For details please refer to sections of com...

Страница 35: ...er ground source the second part refers to the VRF system from ODU to mode exchanger then to IDU Figure 4 8 2 4 9 1 Basic composition of the water system of Gree Water cooled Heat Recovery DC Inverter...

Страница 36: ...too low the heat exchanger for ODU may be crack due to freeze up Excessively large water flow will lead to high energy consumption and loud noise 4 9 3 1 Two types of water system control for Gree wat...

Страница 37: ...mg CaCO3 L 200 70 70 70 Calcium hardness mg CaCO3 L 150 50 50 50 Ionized silicon mg SiO2 L 50 30 30 30 Reference items Fe mg Fe L 1 0 0 3 1 0 0 3 Cu mg Cu L 0 3 0 1 1 0 0 1 Sulfate ion mg S2 L Not det...

Страница 38: ...thout prior notice The specific parameters depend on the product nameplate The ethylene glycol concentration in the table is mass concentration After anti freeze fluid is added the low pressure protec...

Страница 39: ...e the communication cables of the unit correctly connected The unit cannot run and communication fault occurs Are the unit pipe connection and the on off status of valves correct The unit cannot opera...

Страница 40: ...s stable and the change in difference between inlet and outlet pressure 12 Check whether the auto water replenishment device of the cooling tower expansion water tank can ensure smooth water replenish...

Страница 41: ...ED3 Code Display status Code Display status Code Display status 01_ Set master unit db On 01 On A0 On System is not debugged db On 01 On CC On Master unit hasn t been set db On 01 On CF On Master unit...

Страница 42: ...ED3 will display alternately as below 01 2s later 00 2s later d5 db On 07 On OC On System detects no error on indoor components Go to next step automatically 08_Confirm preheated compressor db On 08 O...

Страница 43: ...ng db On 16 On AH On Debugging for heating mode Debugging operation mode the system will select automatically with no need manually setting db On 16 On Related error code On Malfunction occurs at debu...

Страница 44: ...1 Set up master unit db ON 01 ON CC ON No master unit db ON 01 ON CF ON More than 2 master units are set db ON 01 ON OC ON Master unit setting success Go to next progress According to the above errors...

Страница 45: ...nication If no error is detected system displays as below and go to next progress Debugging code Progress code State code Meaning progress LED1 LED2 LED3 Code Display state Code Display state Code Dis...

Страница 46: ...to next progress Debugging code Progress code State code Meaning progress LED1 LED2 LED3 Code Display state Code Display state Code Display state 07_Detect indoor components db ON 07 ON OC ON No error...

Страница 47: ...ow and go to next progress Debugging code Progress code State code Meaning progress LED1 LED2 LED3 Code Display state Code Display state Code Display state 09_Refrigeran t judgments before startup db...

Страница 48: ...need to operate System goes to next progress Step 15 progress 12 is Confirm debugging startup In order to make sure all preparation work is finish before startup this step is to confirm the startup ag...

Страница 49: ...g is enabled in heating mode debugging mode auto selected by system db ON 16 ON Error code ON Error occurs during debugging in heating mode db ON 16 ON J0 ON Error of other modules occurs during debug...

Страница 50: ...temp difference is When water temp is 25 35 77 95 condensing temp value in cooling mode is 30 45 86 113 When water temp is 15 25 59 77 condensing temp value in heating mode is 40 52 104 125 6 6 Evapor...

Страница 51: ...t completely and smoothly Condensate pipe has no backward slope of water Water of ODU can be drained completely through drainage pipe No water drop from unit base 21 Others Compressor and indoor fan m...

Страница 52: ...d when unit is operating and after operating That s sound caused by expansion of panel and other parts due to temperature change The unit blows out dust When unit runs after no operation for a long pe...

Страница 53: ...FE Electric current sensor of compressor 4 is abnormal E4 High discharge temperature protection of compressor FF Electric current sensor of compressor 5 is abnormal J0 Protection for other modules FJ...

Страница 54: ...of driving board power of fan PH High voltage protection of compressor s drive DC bus bar H3 Reset protection of driving module of fan PC Malfunction of current detection circuit drive of compressor...

Страница 55: ...unction between IDU and the receiving lamp C1 Communication malfunction between main control and DC DC controller Cb Overflow distribution of IP address C2 Communication malfunction between main contr...

Страница 56: ...heat exchanger The scale formation of these minerals may affect the heat transfer performance and lead to higher air discharge pressure and more electrical energy consumption as well as chilled water...

Страница 57: ...er inside the water pipeline and heat exchanger 4 Clean the dust and sundries on the indoor and outdoor units 5 In the event of rusting use the anti rust paint to stop spreading of rust 8 5 Parts Repl...

Страница 58: ......

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