Gree U-match Series Owner's Manual
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Gree U-match Series Owner's Manual

Dc inverter cassette type unit
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Owner's Manual
Original Instructions
Air Conditioners
DC Inverter U-match Series Cassette Type Unit
Models:
Indoor Unit
GUD35T/A-T
GUD50T/A-T
GUD71T/A-T
GUD85T/A-T
GUD100T/A-T
GUD125T/A-T
GUD140T/A-T
GUD160T/A-T
Outdoor Unit
GUD35W/NhA-T
GUD50W/NhA-T
GUD71W/NhA-T
GUD85W/NhA-T
GUD100W/NhA-T GUD100W/NhA-X
GUD125W/NhA-T GUD125W/NhA-X
GUD140W/NhA-T GUD140W/NhA-X
GUD160W/NhA-X

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  • Page 1 Owner's Manual Original Instructions Air Conditioners DC Inverter U-match Series Cassette Type Unit Models: Indoor Unit Outdoor Unit GUD35T/A-T GUD35W/NhA-T GUD50T/A-T GUD50W/NhA-T GUD71T/A-T GUD71W/NhA-T GUD85T/A-T GUD85W/NhA-T GUD100T/A-T GUD100W/NhA-T GUD100W/NhA-X GUD125T/A-T GUD125W/NhA-T GUD125W/NhA-X GUD140T/A-T GUD140W/NhA-T GUD140W/NhA-X GUD160T/A-T GUD160W/NhA-X...
  • 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...

  • Page 4: Table Of Contents

    Contents 1 Safety Notices (Please be sure to abide) ......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..............

  • Page 5: Safety Notices (Please Be Sure To Abide)

    DC Inverter U-match Series Cassette Type Unit 1 Safety Notices (Please be sure to abide) SPECIAL WARNING: Be sure to comply with national gas regulations. Do not pierce or burn. 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.
  • Page 7 DC Inverter U-match Series Cassette Type Unit WARNING (6) Air conditioner should be stored with protective measures against mechanical damage caused by accident. (7) If the installation space for air conditioner pipe is too small, adopt a protective measure to prevent the pipe from physical damage.
  • 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.

  • Page 9: Product Introduction

    DC Inverter U-match Series Cassette Type Unit 2 Product Introduction 2.1 Overall Layout...

  • Page 10: Product Operating Range

    DC Inverter U-match Series Cassette Type Unit 2.2 Product Operating Range Cooling Heating -20~48 -20~24 Outdoor temperature DB(°C) 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 Drain Hose...

  • Page 11: Installation

    DC Inverter U-match Series Cassette Type Unit Indoor Unit Accessories Name Appearance Q'ty Usage To prevent the communication wire from reaching out the Flannelette electric raceway（only 35/50） Connect the panel and Bolt Assembly body（only 35/50） Outdoor Unit Accessories Name Appearance...
  • Page 12 DC Inverter U-match Series Cassette Type Unit 3) Refer to the following table to check out the minimum construction area. Ceiling type Wall mounted type Floor standing type Area Area Area Weight(kg) Weight(kg) Weight (kg) — — — ＜1.224 ＜1.224 ＜1.224...

  • Page 13: Selection Of Installation Location

    DC Inverter U-match Series Cassette Type Unit shape, so please hold the base of the unit as well. During installation, be sure to use the components specified in the instruction manual. (3) Please use the charging machine specialized for R32 refrigerant; Before charging, keep the refrigerant tank in an upright position.

  • Page 14: Unit Dimension

    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 Drain Pipe D (Suspension bolt pitch) Liquid Pipe C (Indoor unit) Gas Pipe B (Ceiling) A(Decoration panel) NOTICE Drilling of ceiling opening and installation of air conditioner must be performed by...
  • Page 16 DC Inverter U-match Series Cassette Type Unit (2) Outdoor unit GUD35W/NhA-T, GUD50W/NhA-T, GUD71W/NhA-T, GUD85W/NhA-T. GUD100W/NhA-T, GUD125W/NhA-T, GUD140W/NhA-T, GUD100W/NhA-X, GUD125W/NhA-X, GUD140W/NhA-X.
  • Page 17 DC Inverter U-match Series Cassette Type Unit GUD160W/NhA-X. Unit: mm Dimensions Model GUD35W/NhA-T GUD50W/NhA-T GUD71W/NhA-T GUD85W/NhA-T 1002 GUD100W/NhA-T GUD100W/NhA-X GUD125W/NhA-T GUD125W/NhA-X GUD140W/NhA-T GUD140W/NhA-X GUD160W/NhA-X 1345...
  • Page 18 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 19 DC Inverter U-match Series Cassette Type Unit 2) When two or more outdoor units are to be installed side by side. (mm) — ≥300 ≥300 ≥1000 A,B,C — ≥300 ≥300 ≥1000 ≥1000 A,B,C,E — ≥2000 — ≥2000 ≥1000 ＜H ＞H ≥300...
  • Page 20 DC Inverter U-match Series Cassette Type Unit 3) When outdoor units are installed in rows. ≥ 200 ≥ 200 ≥ 2000 ≥400 ≥400 (mm) ≤1/2H b≥250 ≤H 1/2H＜H b≥300 ＞H Prohibited...
  • Page 21 DC Inverter U-match Series Cassette Type Unit 4) When outdoor units are installed one above another. Unit: mm 2000 (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).

  • Page 22: Unit Installation

    DC Inverter U-match Series Cassette Type Unit Model H(mm) GUD35T/A-T GUD50T/A-T GUD71T/A-T GUD85T/A-T GUD100T/A-T GUD125T/A-T GUD140T/A-T GUD160T/A-T 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 23 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 24: Outdoor Unit Installation

    DC Inverter U-match Series Cassette Type Unit 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 25 DC Inverter U-match Series Cassette Type Unit Installation method: Connect the connection pipes first to the indoor unit and then to the outdoor unit. When bending a connection pipe, be careful not to damage the pipe. Do not over-tighten the screw nut, otherwise leakage will occur. Besides,...
  • Page 26 DC Inverter U-match Series Cassette Type Unit 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: Non-return bend...
  • Page 28 DC Inverter U-match Series Cassette Type Unit cut surface so that the chips do not enter the pipe. (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.
  • 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. Gas pipe Liquid pipe...
  • Page 31 DC Inverter U-match Series Cassette Type Unit Notice: Only for the GUD100W/NhA-T, GUD125W/NhA-T, GUD140W/NhA-T, GUD100W/NhA-X, GUD125W/NhA-X, GUD140W/NhA-X, GUD160W/NhA-X units. 3.2.4 Connection Pipe Vacuum Pumping and Leak Detection 3.2.4.1 Vacuum Pumping NOTICE Make sure the outlet of vacuum pump is away from fire source and is well- ventilated.
  • Page 32 DC Inverter U-match Series Cassette Type Unit (7) Slightly open the liquid valve and let some refrigerant go to the connection pipe to balance the pressure inside and outside of the connection pipe, so that air will not come into the connection pipe when removing the hose. Note that the gas and liquid valve can be opened fully only after the manifold valve assembly is removed.

  • Page 33: Installation Of Drain Pipe

    DC Inverter U-match Series Cassette Type Unit refrigerant and corrode the copper pipe-work. If a leak is suspected, all naked flames shall be removed/extinguished. If a leakage of refrigerant is found which requires brazing, all of the refrigerant shall be recovered from the system, or isolated (by means of shut off valves) in a part of the system remote from the leak.
  • Page 34 DC Inverter U-match Series Cassette Type Unit 3.2.6.1 Indoor Side Drainage Pipe (1) Keep pipe size equal to or greater than that of the connecting pipe (2) Install the drain piping as shown and take measures against condensation. Indoor unit...
  • Page 35 DC Inverter U-match Series Cassette Type Unit Indoor Unit A mm ≤12 GUD35T/A-T ≤12 GUD50T/A-T ≤15 GUD71T/A-T ≤15 GUD85T/A-T ≤15 GUD100T/A-T ≤15 GUD125T/A-T ≤15 GUD140T/A-T ≤15 GUD160T/A-T 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.
  • Page 36 DC Inverter U-match Series Cassette Type Unit 3) Use saddles to fix the whole pipeline onto the wall. 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.
  • Page 37 DC Inverter U-match Series Cassette Type Unit Notice: Specifications of the converging drain pipes should be applicable to the operating capacity of the units. (1) Drain branch should be connected to the vertical or horizontal part of the main drain pipe.

  • Page 38: Installing The Front Panel

    DC Inverter U-match Series Cassette Type Unit (2) See the following diagram for the method of water filling. Drain hose Above 100mm (3-7/8inch) 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.
  • Page 39 DC Inverter U-match Series Cassette Type Unit (1) Temporarily hang the 4 fasteners on the corresponding hooks of the main body of the indoor unit (Do not let the conducting wires get involved into the sealing material). (2) Screw in the hexagon screws beneath the 4 fasteners by about 15mm (front panel will rise).
  • Page 40 DC Inverter U-match Series Cassette Type Unit decorative front panel, adjust the height of the unit again (as shown below). After installing the front panel, make sure there’s no gap between the unit and the front panel. Circuit of the decorative front panel.

  • Page 41: Electrical Installation

    DC Inverter U-match Series Cassette Type Unit Warning After installing the panel, the insulated protective cover with the thickness of 1mm shall be used to wrap the wiring terminal, Tighten the insulated glue cover on both sides with bonding tie to fix it.
  • Page 42 DC Inverter U-match Series Cassette Type Unit ④. The external power cord, connection wire of indoor and outdoor units and the communication cords must be effectively fixed. ⑤. The external power cord, connection wire of indoor and outdoor units and the communication cords can’t directly contact any hot objects.
  • Page 43 DC Inverter U-match Series Cassette Type Unit Min. Circuit sectional Power supply breaker area of power Model capacity cord V/Ph/Hz GUD35W/NhA-T GUD50W/NhA-T GUD71W/NhA-T 220V-240V ~50Hz GUD85W/NhA-T 208V-230V ~60Hz GUD100W/NhA-T GUD125W/NhA-T GUD140W/NhA-T GUD100W/NhA-X GUD125W/NhA-X 380V-415V 3N~50Hz/60Hz GUD140W/NhA-X GUD160W/NhA-X NOTICE: ①. Fuse is located on the main board.
  • Page 44 DC Inverter U-match Series Cassette Type Unit Please select a proper length according to local conditions. Communication cords must not be twisted together. To be in compliance EN 55014, it is necessary to use 7.5 meters long wire. ⑧. The wire gauge of communication cord should not be less than 0.75mm² .
  • Page 45 DC Inverter U-match Series Cassette Type Unit 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).
  • Page 46 DC Inverter U-match Series Cassette Type Unit Wire between indoor and outdoor units. Single-phase unit: GUD35W/NhA-T, GUD50W/NhA-T, GUD71W/NhA-T, GUD85W/NhA-T. Outdoor Unit Indoor Unit Wired Controller Breaker Breaker Power:220V-240V~50Hz/208V-230V~60Hz Power:220V-240V~50Hz/208V-230V~60Hz Outdoor Unit Indoor Unit Wired Controller Breaker Power:220V-240V~50Hz/208V-230V~60Hz Power:220V-240V~50Hz/208V-230V~60Hz GUD35T/A-T+GUD35W/NhA-T GUD50T/A-T+GUD50W/NhA-T ①.
  • Page 47 DC Inverter U-match Series Cassette Type Unit Single-phase unit: GUD100W/NhA-T, GUD125W/NhA-T, GUD140W/NhA-T. Outdoor Unit Indoor Unit Wired Controller Breaker Breaker Power:220V-240V~50Hz/208V-230V~60Hz Power:220V-240V~50Hz/208V-230V~60Hz Outdoor Unit Indoor Unit Wired Controller Breaker Power:220V-240V~50Hz/208V-230V~60Hz Power:220V-240V~50Hz/208V-230V~60Hz GUD100T/A-T+GUD100W/NhA-T GUD125T/A-T+GUD125W/NhA-T ①. Power cord 3×4.0mm² ②. Power cord 3×1.0mm²...
  • Page 48 DC Inverter U-match Series Cassette Type Unit Three-phase unit: GUD100W/NhA-X, GUD125W/NhA-X, GUD140W/NhA-X, GUD160W/NhA-X. Outdoor Unit Indoor Unit Wired Controller Breaker Breaker Power:220V-240V~50Hz/208V-230V~60Hz Power:380V-415V 3N ~ 50Hz/60Hz Outdoor Unit Indoor Unit Wired Controller Breaker Power:220V-240V~ 50Hz/208V-230V~60Hz Power:380V-415V 3N ~ 50Hz/60Hz GUD100T/A-T +GUD100W/NhA-X...
  • Page 49 DC Inverter U-match Series Cassette Type Unit 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. ②. Do not bundle up the connection wire and communication wire of wired control or lay them side by side, otherwise errors will occur.
  • Page 50 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. Single-phase unit: GUD35W/NhA-T, GUD50W/NhA-T, GUD71W/NhA-T, GUD85W/NhA-T.
  • Page 51 DC Inverter U-match Series Cassette Type Unit The communication wire gets in from the upper hole The power cords of outdoor unit and indoor unit get in from the lower hole. Wire routing of unified power supply for single phase.
  • Page 52 DC Inverter U-match Series Cassette Type Unit Three-phase unit: GUD100W/NhA-X, GUD125W/NhA-X, GUD140W/NhA-X, GUD160W/NhA-X. Wire routing of separated power supply for three phase. Only for GUD160W/NhA-X. The communication wire gets in from the upper hole The power cords of outdoor unit and...
  • Page 53 DC Inverter U-match Series Cassette Type Unit Wire routing of unified power supply for three-phase. Only for GUD160W/NhA-X. The communication wire gets in from the upper hole The power cords of outdoor unit and indoor unit get in from the lower hole.

  • Page 54: Check After Installation

    DC Inverter U-match Series Cassette Type Unit 3.4 Check after Installation Check Items after Installation Possible events due to improper Check items installation The unit may fall down, vibrate or Is the main body installed securely? produce noise. Cooling capacity may become Did you do water leakage test? unsatisfactory.

  • Page 55: Operation Specification

    DC Inverter U-match Series Cassette Type Unit air conditioner immediately. Wait until the electric heating belt is heated enough, and then restart the air conditioner. (5) Feel the air flow of the indoor unit to see if it is normal.

  • Page 56: 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...
  • Page 57 DC Inverter U-match Series Cassette Type Unit (2) 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.

  • Page 58: Error Code

    Notice: 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 59 DC Inverter U-match Series Cassette Type Unit Error Number Error code 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...

  • Page 60: Unit Maintenance

    DC Inverter U-match Series Cassette Type Unit 5.3 Unit Maintenance Warning ①. Only professionals are allowed to carry on daily maintenance. ②. Before contacting any wire, make sure power is cut off. ③. Do not let any inflammable objects near the unit.

  • Page 61: Clean Air Filter

    DC Inverter U-match Series Cassette Type Unit 5.3.1 Clean Air Filter If the air conditioner is used at a dusty place, clean the air filter regularly. (Once every half a year) How to clean the air filter 1) Open the air intake grill.
  • Page 62 DC Inverter U-match Series Cassette Type Unit 5.3.2 Clean Air Intake Grill How to clean the air intake grill Same with step 1 in “Clean Air Filter”. 1) Open the air intake grill. Same with step 2 in “Clean Air Filter”.

  • Page 63: Notice On Maintenance

    “ON” status before 8h of operation, to preheat the crankcase of outdoor compressor. (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.
  • Page 64 DC Inverter U-match Series Cassette Type Unit 5.4.1.2 Work Procedure Work shall be undertaken under a controlled procedure so as to minimize the risk of a flammable gas or vapour being present while the work is being performed. 5.4.1.3 General Work Area All maintenance staff and others working in the local area shall be instructed on the nature of work being carried out.
  • Page 65 DC Inverter U-match Series Cassette Type Unit 5.4.1.7 Ventilated area Ensure that the area is in the open or that it is adequately ventilated before breaking into the system or conducting any hot work. A degree of ventilation shall continue during the period that the work is carried out. The ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere.
  • Page 66 DC Inverter U-match Series Cassette Type Unit used. This shall be reported to the owner of the equipment so all parties are advised. Initial safety checks shall include: (1) That capacitors are discharged: this shall be done in a safe manner to avoid possibility of sparking.
  • Page 67 DC Inverter U-match Series Cassette Type Unit 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 68: Charging Procedures

    DC Inverter U-match Series Cassette Type Unit and continuing to fill until the working pressure is achieved, then venting to atmosphere, and finally pulling down to a vacuum. This process shall be repeated until no refrigerant is within the system. When the final OFN charge is used, the system shall be vented down to atmospheric pressure to enable work to take place.
  • Page 69 DC Inverter U-match Series Cassette Type Unit (3) Before attempting the procedure ensure that: 1) Mechanical handling equipment is available, if required, for handling refrigerant cylinders; 2) All personal protective equipment is available and being used correctly 3) The recovery process is supervised at all times by a competent person 4) Recovery equipment and cylinders conform to the appropriate standards.

  • Page 70: After-Sales Services

    DC Inverter U-match Series Cassette Type Unit Cylinders shall be complete with pressure relief valve and associated shut-off valves in good working order. Empty recovery cylinders are evacuated and, if possible, cooled before recovery occurs. The recovery equipment shall be in good working order with a set of instructions concerning the equipment that is at hand and shall be suitable for the recovery of flammable refrigerants.

This manual is also suitable for:

Gud35t/a-tGud35w/nha-tGud50w/nha-tGud50t/a-tGud71t/a-tGud85t/a-t ... Show all

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