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Related Manuals for Gree GUD50T/B-S
Summary of Contents for Gree GUD50T/B-S
- Page 1 Owner's Manual Original Instructions Air Conditioners DC Inverter U-Match Series Cassette Type Unit Models: Indoor Unit Outdoor Unit GUD50T/B-S GUD50W/NhB-S GUD71T/B-S GUD71W/NhB-S GUD100T/B-S GUD100W/NhB-S GUD125T/B-S GUD125W/NhB-S...
- 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...
- Page 3 (10) The final right to interpret for this instruction manual belongs to Gree Electric Appliances Inc. of Zhuhai. Exception Clauses Manufacturer will bear no responsibilities when personal injury or property loss is caused by the following reasons: (1) Damage the product due to improper use or misuse of the product.
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Page 4: Table Of Contents
Contents 1 Safety Notices (Please be sure to abide them) ....1 2 Product Introduction ............5 2.1 Overall Layout ................5 2.2 Product Operating Range ............6 2.3 Standard Accessories .............6 3 Installation ................7 3.1 Installation Preparation ............7 3.2 Unit Installation ..............17 3.3 Electrical Installation ............ -
Page 5: Safety Notices (Please Be Sure To Abide Them)
DC Inverter U-Match Series Cassette Type Unit 1 Safety Notices (Please be sure to abide them) SPECIAL WARNING: (1) Be sure to comply with national gas regulations. (2) Do not pierce or burn. (3) Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer. - Page 6 DC Inverter U-Match Series Cassette Type Unit Before installing the air conditioner, please read the instruction manual. Before repairing the air conditioner, please read the instruction manual. The figures in this manual may be different with the material objects, please refer to the material objects for reference. PROHIBITED! (1) The air conditioner should be grounded to avoid electric shock.
- Page 7 DC Inverter U-Match Series Cassette Type Unit WARNING! (9) Please install the air conditioner in a secure place that can withstand the weight of air conditioner. Insecure installation may cause the air conditioner falling down and lead to injury. (10) Be sure to adopt independent power circuit. If the power cord is damaged, it must be repaired by the manufacturer, service agent or other professional agents.
- Page 8 DC Inverter U-Match Series Cassette Type Unit NOTICE! (1) Do not put a finger or other objects into the air inlet or air return grill. (2) Please adopt safety protection measures before touching the refrigerant pipe, otherwise your hands may be hurt. (3) Please arrange the drain pipe according to the instruction manual.
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Page 9: Product Introduction
DC Inverter U-Match Series Cassette Type Unit 2 Product Introduction 2.1 Overall Layout NOTICE: The connection pipe, drain pipe, power cord, for this unit should be prepared by the user. -
Page 10: Product Operating Range
DC Inverter U-Match Series Cassette Type Unit 2.2 Product Operating Range — Cooling Heating Outdoor temperature DB(°C) -15~52 -15~24 Indoor temperature DB/WB(°C) 32/23 27/- (Maximum) 2.3 Standard Accessories Indoor Unit Accessories Name Appearance Q'ty Usage To connect with the hard Drain Hose PVC drain pipe To fix the installation... -
Page 11: Installation
DC Inverter U-Match Series Cassette Type Unit Outdoor Unit Accessories Name Appearance Q'ty Usage Drain Plug 1 or 3 To plug the unused drain hole Drainage To connect with the hard PVC Connector drain pipe Used for threading power cord Rubber Ring 0 or 2 or communication wire... - Page 12 DC Inverter U-Match Series Cassette Type Unit Ceiling type Wall mounted type Floor standing type Weight(kg) Area (m Weight(kg) Area (m Weight (kg) Area (m 1.63 2.44 22.0 2.07 3.09 27.8 2.55 3.81 34.3 3.09 4.61 41.5 3.68 5.49 49.4 4.31 6.44 58.0...
- Page 13 DC Inverter U-Match Series Cassette Type Unit manual. (3) Please use the charging machine specialized for R32 refrigerant before charging, keep the refrigerant tank in an upright position. After charging, stick a label on the air conditioner saying no excessive charging. (4) The following tools will be used: 1) Liquid-level gauge;...
- Page 14 DC Inverter U-Match Series Cassette Type Unit (8) Indoor unit, power cord, connecting wires and communication cords should be at least 1m from television and radio. This is to prevent image interference or noise (Even at a distance of 1m, a very strong electric wave may still generate noise).
- Page 15 DC Inverter U-Match Series Cassette Type Unit (1) Indoor unit Unit: mm Dimensions Model GUD50T/B-S GUD71T/B-S GUD100T/B-S GUD125T/B-S NOTICE! (1) Drilling of ceiling opening and installation of air conditioner must be performed by professionals! (2) Please refer to the installation cardboard for the dimension of drilling hole of...
- Page 16 DC Inverter U-Match Series Cassette Type Unit (2) Outdoor unit GUD50W/NhB-S, GUD71W/NhB-S GUD100W/NhB-S, GUD125W/NhB-S Unit: mm Dimensions Model GUD50W/NhB-S GUD71W/NhB-S GUD100W/NhB-S — GUD125W/NhB-S —...
- Page 17 DC Inverter U-Match Series Cassette Type Unit 3.1.4 Diagram of Unit Installation Space and Location (1) Diagram of installation space and location for outdoor unit (Notice: for best performance of the outdoor unit, make sure its installation space conforms to the following installation dimensions).
- Page 18 DC Inverter U-Match Series Cassette Type Unit 2) When two or more outdoor units are to be installed side by side. Unit:mm (mm) — A,B,C — ≥300 ≥300 ≥1000 — — A,B,C,E — ≥300 ≥300 ≥1000 ≥1000 — — — —...
- Page 19 DC Inverter U-Match Series Cassette Type Unit 3) When outdoor units are installed in rows. Unit:mm (mm) ≤1/2H b≥250 1/2H<H ≤H b≥300 >H Prohibited...
- Page 20 4) When outdoor units are installed one above another. Unit:mm (2) Diagram of installation location and space for indoor unit (Notice: for the best performance of indoor unit, make sure its installation space conforms to the following installation dimensions). Unit:mm Model H(mm) GUD50T/B-S GUD71T/B-S GUD100T/B-S GUD125T/B-S...
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Page 21: Unit Installation
DC Inverter U-Match Series Cassette Type Unit 3.2 Unit Installation 3.2.1 Indoor Unit Installation In order to make the front panel cover 20mm of the ceiling, the distance between the ceiling and the unit should be 35mm or less. If the distance between the ceiling and the unit is above 35mm, add some ceiling material to shorten the distance. - Page 22 DC Inverter U-Match Series Cassette Type Unit (2) Installing the Main Body Unit. 1) Install the hoisting stand on the hoisting screw by using nuts and gaskets at both the upper and lower sides of the hoisting stand. To prevent the gasket from breaking off, a gasket anchor board can be helpful.
- Page 23 DC Inverter U-Match Series Cassette Type Unit 3.2.1.2 Leveling The water level test must be done after installing the indoor unit to make the unit is horizontal, as shown below. 3.2.2 Outdoor Unit Installation (1) If the outdoor unit is installed on a solid ground such as concrete, use M10 screw bolts and nuts to secure the unit and make sure the unit stands erect and level.
- Page 24 DC Inverter U-Match Series Cassette Type Unit 3.2.3 Connection Pipe Installation 3.2.3.1 Installation Notice and Requirement on Connection Pipe Due to product improvement, there are currently two installation methods for the pipe connecting nut of indoor unit using R32 refrigerant. Product performance will not be affected.
- Page 25 DC Inverter U-Match Series Cassette Type Unit (2) Installation of Ordinary Nut and Tamperproof box Unfold the connecting pipe and bend the connecting pipe according to the required length. Open the nut cover on the indoor unit’s pipe and align the conical mouth of the connecting pipe with the center of the indoor unit’s pipe.
- Page 26 (outer pipe length indoor and dimension) Liquid outdoor units Model pipe pipe (mm) GUD50T/B-S Ф1/4 Ф1/2 GUD71T/B-S Ф25 GUD100T/B-S Ф3/8 Ф5/8 GUD125T/B-S Connection pipe should adopt water-proof insulating material. Its wall thickness should be 0.5-1.0mm and the pipe wall should be able to withstand 6.0MPa. The longer the connection pipe is, the worse cooling and heating performance it has.
- Page 27 DC Inverter U-Match Series Cassette Type Unit (2) Outdoor unit is above the indoor unit. It’s necessary to add oil return bend and non-return bend at the lowest and highest position of the vertical pipe, as shown below: Dimensions for the making of oil return bend are as follows: A(inch) B(mm) C(mm)
- Page 28 DC Inverter U-Match Series Cassette Type Unit (3) Remove the cut-off valve of outdoor unit and take out the flare nut from the bag of indoor unit accessories. Then fit the flare nut on the pipe and use a flaring tool to flare the mouth of connection pipe. (4) Check whether the flaring part has cracked.
- Page 29 DC Inverter U-Match Series Cassette Type Unit 3.2.3.4 Connection Pipe of Indoor and Outdoor Units NOTICE! (1) Connect the pipe to the unit. Please follow the instructions stated in the figures below. Use both spanner and torque wrench. (2) When connecting the tapered screw nut, first apply chilled machine oil on its inner and outer surface and then screw it up for 3~4 circles.
- Page 30 DC Inverter U-Match Series Cassette Type Unit Screw on the flare nut of the flaring connecting pipe on the outdoor unit valve. The method of screwing the flare nut is the same with that for indoor unit. 3.2.3.5 Thermal Insulation of Pipe Joint (Only for Indoor Unit) Stick coupler heat insulation (large and small) to the place where connecting pipes.
- Page 31 (5) The evacuation duration depends on the unit’s capacity, generally. Model Time(min) GUD50T/B-S GUD71T/B-S GUD100T/B-S GUD125T/B-S And verify if the pressure gauge at the low pressure side of the manifold valve assembly reads -0.1MPa (-750mmHg), if not, it indicates there is leak somewhere.
- Page 32 DC Inverter U-Match Series Cassette Type Unit NOTICE: For large-size units, there are maintenance ports for liquid valve and gas valve. During evacuation, you may connect the two hoses of the branch valve assembly to the maintenance ports to speed up the evacuation. 3.2.4.2 Leak Detection Methods The following leak detection methods are deemed acceptable for systems containing flammable refrigerants.
- Page 33 DC Inverter U-Match Series Cassette Type Unit 3.2.5 Refrigerant Adding NOTICE! Before and during operation, use an appropriate refrigerant leak detector to monitor the operation area and make sure the technicians can be well aware of any potential or actual leakage of inflammable gas. Make sure the leak detecting device is applicable to inflammable refrigerant.
- Page 34 ② Drain hose allowed to apply PVC or other related ③ Grey tape glue in the joints of two ends of drain pipe. ① Metal clamp ② Insulation sponge Indoor Unit A mm GUD50T/B-S ≤15 GUD71T/B-S ≤15 GUD100T/B-S ≤15 GUD125T/B-S ≤15...
- Page 35 DC Inverter U-Match Series Cassette Type Unit 3.2.6.2 Outdoor Side Drainage Pipe (1) If the outdoor unit is underneath the indoor unit, arrange the pipeline according to the following diagram. 1) Drain hose should be placed on the ground and its end should not be immersed into water.
- Page 36 DC Inverter U-Match Series Cassette Type Unit 3.2.6.3 Notice on Drain Lift Pipe (1) The drain lift pipe should be 1000mm or less away from ground, as shown below. Unit:mm (2) If multiple drain pipes are to be converged, please install according to the following process.
- Page 37 After the pipeline work is finished, check whether the drainage can go smoothly. (1) Add slowly about 1L of water into the water tray. After the electric circuit is completed, check the drainage condition during refrigerating operation. GUD50T/B-S, GUD71T/B-S, GUD100T/B-S, GUD125T/B-S.
- Page 38 DC Inverter U-Match Series Cassette Type Unit (2) See the following diagram for the method of water filling. 3.2.7 Installing the Front Panel As shown below, take off the 4 corner covers from the front panel and loose the hexagon screw bolts on the 4 fasteners to the maximum. The position marked with “PIPING SIDE”...
- Page 39 DC Inverter U-Match Series Cassette Type Unit NOTICE: (1) Improper screw looseness will lead to the following problem. (2) After the screws are tightened, if there is still a gap between the ceiling and the decorative front panel, adjust the height of the unit again (as shown below).
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Page 40: Electrical Installation
DC Inverter U-Match Series Cassette Type Unit (3) After installing the front panel, make sure there’s no gap between the unit and the front panel. (4) Circuit of the decorative front panel. (5) Connect the front panel to the main body through the corresponding slots. Match the slots according to their different size. - Page 41 Do not change the power cables arbitrarily. Do not change the length and terminals of the power cables. If you want to change the power cables, please contact Gree’s local service center. ⑩ Wiring terminals should be connected firmly to the terminal board. Loose connection is forbidden.
- Page 42 DC Inverter U-Match Series Cassette Type Unit cord or other wires must be replaced by specialized wires. Wiring work must be done according to national wiring rules and regulations. 3.3.2 Electrical Parameters Circuit Min. sectional Fuse Power supply breaker area of power capacity Model capacity...
- Page 43 DC Inverter U-Match Series Cassette Type Unit ⑦ Adopt 2pc of 0.75mm² power cords to be the communication cords between wired control and indoor unit. The maximum length is 30m. Please select a proper length according to local conditions. Communication cords must not be twisted together.
- Page 44 DC Inverter U-Match Series Cassette Type Unit (3) How to connect the connection wire and power cord. Lead the connection wire and power cord through the insulation tube. Then fix the wires with wire clamps (as shown in the following figure). WARNING! (1) Before working, please check whether the indoor and outdoor units are powered on.
- Page 45 DC Inverter U-Match Series Cassette Type Unit (4) Wire between indoor and outdoor units. Single-phase unit: GUD50W/NhB-S, GUD71W/NhB-S. GUD50T/B-S+GUD50W/NhB-S ① Power cords 3×1.5mm ② Power cords 3×1.0mm ③ Communication cords 2×0.75mm ④ Communication cords 2×0.75mm ⑤ Connection wires of DRED module GUD71T/B-S +GUD71W/NhB-S ①...
- Page 46 DC Inverter U-Match Series Cassette Type Unit Single-phase unit: GUD100W/NhB-S, GUD125W/NhB-S. GUD100T/B-S+GUD100W/NhB-S GUD125T/B-S+GUD125W/NhB-S ① Power cords 3×4.0mm ② Power cords 3×1.0mm ③ Communication cords 2×0.75mm ④ Communication cords 2×0.75mm ⑤ Connection wires of DRED module (5) Electrical wiring of indoor unit and Electrical wiring of outdoor unit. WARNING! (1) High and low voltage wires should be led through different rubber rings of the electric box cover.
- Page 47 1) Indoor side. Take off the electric box cover from the sub-assembly of electric box. Then connect the wires. Connect the connection wires of indoor unit according to the corresponding marks. GUD50T/B-S, GUD71T/B-S, GUD100T/B-S, GUD125T/B-S.
- Page 48 DC Inverter U-Match Series Cassette Type Unit 2) Outdoor side. Remove the big handle/front panel of the outdoor unit and insert one end of the communication cord and the power cord to the terminal board. For the connection wires of DRED module, it’s suggested to use rubber cord that is pursuant to 57 in IEC 60245 lines.
- Page 49 DC Inverter U-Match Series Cassette Type Unit Single-phase unit: GUD100W/NhB-S, GUD125W/NhB-S. A. Wire routing of separated power supply for single phase. B. Wire routing of unified power supply for single phase.
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Page 50: Check After Installation
DC Inverter U-Match Series Cassette Type Unit 3.4 Check after Installation Check Items after Installation Check items Possible events due to improper installation main body installed The unit may fall down, vibrate or produce securely? noise. Did you do water leakage test? Cooling capacity may become unsatisfactory. -
Page 51: Test Running
DC Inverter U-Match Series Cassette Type Unit 3.5 Test Running Preparation before connecting the power. (1) Power must not be connected if the installation work is not completed. (2) Control circuit is correct and all the wires are firmly connected. (3) Cut-off valves of the gas pipe and liquid pipe are open. -
Page 52: Maintenance
DC Inverter U-Match Series Cassette Type Unit 5 Maintenance 5.1 Failures Not Caused by Faults of the AC (1) If your air conditioner fails to function normally, please first check the following items before maintenance: Problem Cause Corrective measure If you turn off the unit and then immediately turn it on, in order to protect compressor... - Page 53 DC Inverter U-Match Series Cassette Type Unit The following situations are not operation failures. Problem Time of occurrence Cause Mist comes If the unit is running under high from the air During operation. humidity, the wet air in the room conditioner.
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Page 54: Error Code
Check the above items and adopt the corresponding corrective measures. If the air conditioner continues to function poorly, please stop the air conditioner immediately and contact Gree’s authorized local service center. Ask our professional service staff to check and repair the unit. - Page 55 DC Inverter U-Match Series Cassette Type Unit Number Error code Error ODU memory chip error Electric box sensor error Compressor overload protection Overload IPM protection DC fan error Driver out-of-step protection Pfc protection Startup failure Compressor phase-sequence protection Power protection IDU and ODU unmatched 4–way valve switch-over error Driver reset protection...
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Page 56: Unit Maintenance
DC Inverter U-Match Series Cassette Type Unit NOTICE: When the unit is connected with the wired controller, the error code will be simultaneously shown on it. 5.3 Unit Maintenance NOTICE! (1) Before cleaning, please make sure the unit is stopped. Cut the circuit breaker and remove the power socket, otherwise, electric shock may occur. - Page 57 DC Inverter U-Match Series Cassette Type Unit How to clean the air filter (3) Disassemble the air purifier Remove the air purifier after removing the fixed screws on it. (4) Cleaning the filer screen Use vacuum cleaner to remove dust or rinse the filter. If the filter is very dirty (greasy), use warm water (below 45°C) with neutral detergent to clean it.
- Page 58 (6) Check if the installation of outdoor unit is firm, if not, please contact with Gree appointed maintenance center. 5.3.6 Maintenance at the End of the Using Season (1) Cut off the main power of air conditioner.
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Page 59: Notice On Maintenance
(4) If the outdoor unit is rusty, coat the rusty location with paint to prevent it from expanding. 5.3.7 Components Replacement Components are available in Gree agency or Gree distributors nearby. 5.4 Notice on Maintenance 5.4.1 Information on Servicing The manual shall contain specific information for service personnel who shall be instructed to undertake the following when servicing an appliance that employs a flammable refrigerant. - Page 60 DC Inverter U-Match Series Cassette Type Unit hand. Have a dry powder or CO fire extinguisher adjacent to the charging area. 5.4.1.6 No Ignition Sources No person carrying out work in relation to a refrigeration system which involves exposing any pipe work that contains or has contained flammable refrigerant shall use any sources of ignition in such a manner that it may lead to the risk of fire or explosion.
- Page 61 DC Inverter U-Match Series Cassette Type Unit unlikely to be exposed to any substance which may corrode refrigerant containing components, unless the components are constructed of materials which are inherently resistant to being corroded or are suitably protected against being so corroded. 5.4.1.9 Checks to Electrical Devices Repair and maintenance to electrical components shall include initial safety checks and component inspection procedures.
- Page 62 DC Inverter U-Match Series Cassette Type Unit NOTICE： The use of silicon sealant may inhibit the effectiveness of some types of leak detection equipment. Intrinsically safe components do not have to be isolated prior to working on them. 5.4.3 Repair to Intrinsically Safe Components Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that this will not exceed the permissible voltage and current permitted for the equipment in use.
- Page 63 DC Inverter U-Match Series Cassette Type Unit (4) Purge again with inert gas. (5) Open the circuit by cutting or brazing. The refrigerant charge shall be recovered into the correct recovery cylinders. The system shall be “flushed” with OFN to render the unit safe. This process may need to be repeated several times.
- Page 64 DC Inverter U-Match Series Cassette Type Unit practice that all refrigerants are recovered safely. Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of reclaimed refrigerant. It is essential that electrical power is available before the task is commenced: (1) Become familiar with the equipment and its operation.
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Page 65: After-Sales Services
When oil is drained from a system, it shall be carried out safely. 5.5 After-Sales Services Any quality or other issues encountered in the purchased air conditioner, please contact the local Gree after-sales service department.