Gree A Series Installation, Start-Up And Maintenance Manual
Inverter modular air-cooled chiller heat pump
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Summary of Contents for Gree A Series
- Page 1 A Series Inverter Modular Air-cooled Chiller (Heat Pump) LSQWRF35VM/NaA-M、LSQWRF60VM/NaA-M LSQWRF65VM/NaA-M、LSQWRF70VM/NaA-M...
- Page 2 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...
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Page 3: Table Of Contents
Contents 1 Safety Notices......................1 2 General Introduction ....................6 2.1 Product Features ....................7 2.2 Principle Diagrams ....................8 3 Operation Range ....................... 8 4 Outline Dimensions ....................9 5 Installation Instructions.................... 10 5.1 Pre-check......................10 5.2 Acceptance Check..................... 10 5.3 Handling and Lifting ....................11 5.4 Installation Foundation and Service Space............ - Page 4 8.12 Rountine Maintenance..................28 8.13 Precautions...................... 29 9 Troubleshooting and After-sales Service ..............30 9.1 Troubleshooting Measures ................30 9.2 After-sales Service .................... 32...
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Page 5: Safety Notices
A Series Inverter Modular Air-cooled Chiller (Heat Pump) Safety Notices 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. - Page 6 A Series Inverter Modular Air-cooled Chiller (Heat Pump) NOTE (1)Do not install the unit where there is high-intensity magnetic field or it is highly basic or acid or the voltage is quietly unstable. (2)Do not install the unit where there would be leaked inflammable gas, as it would lead to fire hazards.
- Page 7 (3)Do not use or place inflammable or explosive substances near the unit. (4)Do not do troubleshooting personally, as incorrect troubleshooting would lead to electrocution or fire hazards. Instead, please contact GREE after-sales service center. (5)When the unit is charged with refrigerant, do not solder or cut any pipeline, fined...
- Page 8 A Series Inverter Modular Air-cooled Chiller (Heat Pump) NOTE (1)Do not let the unit out of the designed application range; otherwise it would cause the heat exchanging tube cracking, refrigerant leakage or even explosion. (2)Do not let the cold/heat source directly act on the stored foods, plants, animals, precision instruments, and curiosities, otherwise their quality would be degraded.
- Page 9 A Series Inverter Modular Air-cooled Chiller (Heat Pump) CAUTION (1)Do operate the unit in accordance with this manual and read it carefully before startup or troubleshooting. (2)Do turn on or off the unit with the controller.
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Page 10: General Introduction
A Series Inverter Modular Air-cooled Chiller (Heat Pump) ◆Safety Precaution for Handling of the Unit Safety Precaution for Handling of the Unit WARNING (1)Please contact the contractor for handling and installation. Improper installation would lead to electrocution or fire hazard. -
Page 11: Product Features
A Series Inverter Modular Air-cooled Chiller (Heat Pump) noise level and surrounding environment and boils and cooling towers are not allowed or hard to be installed. Product Features The all-inverter modular air-cooled chillers work outstandingly by virtue of their major features stated below.. -
Page 12: Principle Diagrams
A Series Inverter Modular Air-cooled Chiller (Heat Pump) Principle Diagrams Operation Range Please run the unit under the specified operation range as shown in the table below: ■ R410A Series Water Side Air Side Item Leaving Water Ambient DB Water Temperature Temperature（℃）... -
Page 13: Outline Dimensions
A Series Inverter Modular Air-cooled Chiller (Heat Pump) Outline Dimensions (1)LSQWRF35VM/NaA-M(unit:mm）... -
Page 14: Installation Instructions
A Series Inverter Modular Air-cooled Chiller (Heat Pump) (2)LSQWRF60VM/NaA-M, LSQWRF65VM/NaA-M，LSQWRF70VM/NaA-M (unit:mm) Installation Instructions Pre-check Installation should be performed by the skilled technician to guarantee the normal operation and prevent malfunctions and please read this manual carefully prior to installation. The chiller is manufactured, inspected and tested strictly in accordance with the quality control program and it will work properly within the expected service life as long as its installation, operation and service. -
Page 15: Handling And Lifting
Handling and Lifting Each unit will undergo a series of strict factory inspections and tests to guarantee the expected performance and quality. However, special attention should be paid during handling and shipping to prevent the control system and the piping system from being damaged. -
Page 16: Installation Foundation And Service Space
A Series Inverter Modular Air-cooled Chiller (Heat Pump) Installation Foundation and Service Space (1)Installation foundation shall be designed by the qualified designer in accordance with the actual condition. (2)A rubber pad shall be placed under the base of each single unit and then secured on the ground or the roof. -
Page 17: Vibration Reduction
A Series Inverter Modular Air-cooled Chiller (Heat Pump) Note: diagrams above are just for reference and not in real proportion. Vibration Reduction The unit shall be securely attached to the foundation through the mounting hole by following the steps below. -
Page 18: Installation Of The Water System
A Series Inverter Modular Air-cooled Chiller (Heat Pump) (1)Be sure the planeness of the concrete foundation is within ±3mm and the foundation shall be covered by a rubber pad. (2)Lift the unit until to the height where it is available to install the spring shock absorber. - Page 19 A Series Inverter Modular Air-cooled Chiller (Heat Pump) NOTE Never use salt mixture to prevent the unit from being corroded. ■ How to install the water system ■ How to drain the water system： (1)Loosen screws around the panel and then take down it.
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Page 20: Introduction To The Display Panel
A Series Inverter Modular Air-cooled Chiller (Heat Pump) (2)Remove anticlockwise the blind plug located at the bottom of the heat exchanger to let the chilled water flow out, after that, tighten the blind plug and reinstall the panel. (- Note: place the drainage equipment beneath the drain pipe to prevent pollution caused by the drain water. -
Page 21: Specification Of Power Cord And Air Switch
A Series Inverter Modular Air-cooled Chiller (Heat Pump) corresponding wiring board of any one unit, while those for the error indicator and extemal passive contact switch should be wired to the corresponding wiring board of all units as shown in the figure below. -
Page 22: Wiring Of The Electric Control Cabinet
A Series Inverter Modular Air-cooled Chiller (Heat Pump) LSQWRF65VM/ 380V～415VAC 3Ph NaA-M 50Hz LSQWRF70VM/ 380V～415VAC 3Ph NaA-M 50Hz Notes: (1)The specifications of the breaker and power cable listed in the table above are determined based on the maximum power (maximum amps) of the unit. - Page 23 A Series Inverter Modular Air-cooled Chiller (Heat Pump) (4)Any damage caused by the improper external wiring shall be at the installer’s expense. WARNING Only copper conductor is allowed. ■ How to wire the power lines to the electric box (1)The power cord must be routed inside the conduit.
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Page 24: Networking And Wiring Between Units
A Series Inverter Modular Air-cooled Chiller (Heat Pump) Networking and Wiring between Units Notes (1)CN25 and C47 of each unit should be connected through the three-core grounded communication line with the shielding layer. The ground wire of the communication lien should be grounded reliably as shown in the figure above. -
Page 25: Setup Of Toggle Switches On The Motherboard
(4)There are two solutions for remote monitoring. 1) Install the remote monitoring software at the PC. 2) Based on GREE provided Modbus protocol, the user can do second development to this protocol. Note: those enclosed by the dotted lines indicate the remote monitoring equipment. -
Page 26: Jumpers
A Series Inverter Modular Air-cooled Chiller (Heat Pump) Note: the black block represents where the projecting lever of the toggle switch is. Jumpers When it is required to replace the main board, be sure the main board can match with the applicable jumpers. -
Page 27: Commissioning And Maintenance
A Series Inverter Modular Air-cooled Chiller (Heat Pump) Commissioning and Maintenance The unit shall be maintained periodically by the skilled servicemen from Gree or a designed person under our professional guide to guarantee the unit operates reliably in a long term. - Page 28 A Series Inverter Modular Air-cooled Chiller (Heat Pump) mg(Fe)/L <1.0 <0.3 Undetecta- Undet- Total mg(S ectable hardn- mg(NH <1.0 <0.3 mg(SiO <30 <30 NOTE:“○”indicates possible corrosion or scaling. Even if the water qualify is under the strict control, calcium dioxide or other minerals will still form on the surface of the heat exchanger which will affect the heat exchange efficiency and be eliminated by formic acid, lemon acid, acetic acid or other organic acid.
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Page 29: Trial Run
A Series Inverter Modular Air-cooled Chiller (Heat Pump) ■ Precautions (1)Although the cleaning agent is innocuous,care also should be taken not to let it spill into eyes. (2)The serviceman with injuries on the hand is not allowed to take this task. -
Page 30: Maintenance To The Main Parts
(6)Regulate the water flow through the balance valve and check the water pressure. (7)Check if the fan rotates properly. (8)Check if the system vibration and noise are acceptable. Parts Replacement Only parts supplied by Gree can be replaced instead of similar parts supplied by others. -
Page 31: Refrigerant Charging
A Series Inverter Modular Air-cooled Chiller (Heat Pump) Refrigerant Charging Refrigerant charging should be done based on the discharge and suction pressure. An air tight test must be taken on the condition refrigerant leaks or some part is required to be replaced. -
Page 32: Freeze Protection
A Series Inverter Modular Air-cooled Chiller (Heat Pump) (7)Clean up the pipeline. 8.11 Freeze Protection When the flow passage of the shell-and-tube heat exchanger is frozen up, it would cause serious damage to the heat exchanger, such as cracking and leakage which are out of warranty, therefore, the user should take measures stated below for freeze protection：... -
Page 33: Precautions
A Series Inverter Modular Air-cooled Chiller (Heat Pump) ■ Weekly Maintenance (1)Check the main unit, like if the compressor runs with abnormal noise, if the distribution box is attached securely and if the pipeline generates abnormal vibration or leakage. (2)Record key parameters, like pressure, pressure etc. -
Page 34: Troubleshooting And After-Sales Service
A Series Inverter Modular Air-cooled Chiller (Heat Pump) Troubleshooting and After-sales Service Troubleshooting Measures Troubleshooting Measures Error Possible Causes 1.Uncomplete vacuuming. 1.Revacuum the system and 2.Too high envivornment recharge refrigerant. temperature. 2.Improve ventilation. 3.Condenser fins are dirty 3.Clean condenser fins. - Page 35 A Series Inverter Modular Air-cooled Chiller (Heat Pump) 1.The overcurrent relay tripped off and the fuse was burnt out. 2.The control circuit was 1.Replace it. open. 2.Check wiring of the control 3.There is no current. system. 3.Check the power supply.
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Page 36: After-Sales Service
A Series Inverter Modular Air-cooled Chiller (Heat Pump) 1.Check if the entering and 1.The entering and leaving leaving water temperature water temperature sensor sensors were installed Protection against the failed fell off or installed incorreclty. correctly and if silica gel at 4–way valve... - Page 37 A Series Inverter Modular Air-cooled Chiller (Heat Pump) Appendix A: Inspection Records Prior to Commissioning...
- Page 38 A Series Inverter Modular Air-cooled Chiller (Heat Pump) Appendix B: Trial Run and Commissioning Records...
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