Gree GUD50P/B-S Owner's Manual
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Gree GUD50P/B-S Owner's Manual

Gree GUD50P/B-S Owner's Manual

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Owner's Manual
Original Instructions
Air Conditioners
DC Inverter U-match Series Duct Type Unit
Models:
Indoor Unit
GUD50P/B-S
GUD71PH/B-S
GUD100PH/B-S
GUD125PH/B-S
GUD140PH/B-S
GUD160PH/B-S
GUD50PS/B-S
GUD71PHS/B-S
GUD100PHS/B-S
GUD125PHS/B-S
GUD140PHS/B-S
GUD160PHS/B-S
Outdoor Unit
GUD50W/NhB-S
GUD71W/NhB-S
GUD100W/NhB-S
GUD125W/NhB-S
GUD140W/NhB-S
GUD160W/NhB-S

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  • Page 1 Owner's Manual Original Instructions Air Conditioners DC Inverter U-match Series Duct Type Unit Models: Indoor Unit Outdoor Unit GUD50P/B-S GUD50PS/B-S GUD50W/NhB-S GUD71PH/B-S GUD71PHS/B-S GUD71W/NhB-S GUD100PH/B-S GUD100PHS/B-S GUD100W/NhB-S GUD125PH/B-S GUD125PHS/B-S GUD125W/NhB-S GUD140PH/B-S GUD140PHS/B-S GUD140W/NhB-S GUD160PH/B-S GUD160PHS/B-S GUD160W/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...

  • Page 4: Table Of Contents

    Contents 1 Safety Notice (Please be sure to abide them) ....1 2 Product Introduction ............5 2.1 Overall Layout ................5 2.2 Operating Range ..............6 2.3 Standard Accessories .............6 3 Installation ................7 3.1 Installation Preparation ............7 3.2 Unit Installation ..............18 3.3 Electrical Installation ............

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

    DC Inverter U-match Series Duct Type Unit 1 Safety Notice (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 Duct 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 Duct 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 Duct 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.

  • Page 9: Product Introduction

    DC Inverter U-match Series Duct Type Unit 2 Product Introduction 2.1 Overall Layout NOTICE: ①. The connection pipe, drain pipe, power cord, and duct for this unit should be prepared by the user. ②. The unit is standard equipped with rectangular duct.

  • Page 10: Operating Range

    DC Inverter U-match Series Duct Type Unit 2.2 Operating Range Cooling Heating Outdoor temperature DB(°C) -15~52 -15~24 Indoor temperature DB/WB(°C)(Maximum) 32/23 27/- 2.3 Standard Accessories Indoor Unit Accessories Name Appearance Q'ty Usage Wired Controller To control the indoor unit. To fix the hook on the Nut with Washer cabinet of the unit.

  • Page 11: Installation

    DC Inverter U-match Series Duct Type Unit Outdoor Unit Accessories Name Appearance Q'ty Usage To plug the unused drain Drain Plug 1 or 3 hole. Drainage To connect with the hard Connector PVC drain pipe. Rubber Used for threading power 0 or 2 Ring cord or communication wire.
  • Page 12 DC Inverter U-match Series Duct 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 Duct Type Unit (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 Duct 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 Duct Type Unit (1) Indoor unit GUD50P/B-S, GUD50PS/B-S, GUD100PH/B-S, GUD100PHS/B-S, GUD125PH/B-S, GUD125PHS/B-S, GUD140PH/B-S, GUD140PHS/B-S. GUD71PH/B-S, GUD71PHS/B-S.
  • Page 16 DC Inverter U-match Series Duct Type Unit GUD160PH/B-S, GUD160PHS/B-S NOTICE! Drilling of ceiling opening and installation of air conditioner must be performed by professionals! Unit: mm Dimensions Model GUD50P/B-S 1060 1000 1068 GUD50PS/B-S GUD71PH/B-S — GUD71PHS/B-S GUD100PH/B-S 1040 1000 1092...
  • Page 17 DC Inverter U-match Series Duct Type Unit (2) Outdoor unit GUD50W/NhB-S, GUD71W/NhB-S. GUD100W/NhB-S, GUD125W/NhB-S.
  • Page 18 DC Inverter U-match Series Duct Type Unit GUD140W/NhB-S, GUD160W/NhB-S. Unit: mm Dimensions Model GUD50W/NhB-S GUD71W/NhB-S GUD100W/NhB-S — GUD125W/NhB-S — GUD140W/NhB-S 1350 GUD160W/NhB-S 1430 —...
  • Page 19 DC Inverter U-match Series Duct 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). 1) When one outdoor unit is to be installed.
  • Page 20 DC Inverter U-match Series Duct 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 21 DC Inverter U-match Series Duct 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 22: Unit Installation

    DC Inverter U-match Series Duct Type Unit 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).
  • Page 23 DC Inverter U-match Series Duct Type Unit (1) Install the bolts to the ceiling at a place strong enough to hang the unit. Mark the bolt positions from the installation template. With a concrete drill for 12.7mm diameter holes. See the following figure. Unit:mm (2) Insert the anchor bolts into the drilled holes, and drive the pins completely into the anchor bolts with a hammer.
  • Page 24 DC Inverter U-match Series Duct Type Unit 3.2.1.2 Leveling After installing the indoor unit, level detection of the unit shall be conducted. Place the unit horizontally and leave the left and right side with a downward slope of 1/100~1/50 in drainage direction, 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...
  • Page 25 DC Inverter U-match Series Duct 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 26 Size of Fitting Maximum Biggest drop between Item Pipe(inch) pipe indoor and outdoor Model Liquid pipe Gas pipe length(m) units(m) GUD50P/B-S Ф1/2 Ф1/4 GUD50PS/B-S GUD71PH/B-S GUD71PHS/B-S GUD100PH/B-S GUD100PHS/B-S GUD125PH/B-S Ф3/8 Ф5/8 GUD125PHS/B-S GUD140PH/B-S...
  • Page 27 DC Inverter U-match Series Duct 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. When the drop between indoor and outdoor units is larger than 10m, an oil return bend should be added every 6m.
  • Page 28 DC Inverter U-match Series Duct 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 29 DC Inverter U-match Series Duct Type Unit 3.2.3.2 Pipe Flaring (1) Cut the connection pipe with a pipe cutter. (2) The mouth of connection pipe should face downward. Remove burrs with the 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.
  • Page 30 DC Inverter U-match Series Duct 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 31 DC Inverter U-match Series Duct Type Unit Pipe diameter (inch) Tightening torque (N·m) Ф1/4 15~30 Ф3/8 35~40 Ф1/2 45~50 Ф5/8 60~65 Ф3/4 70~75 Ф7/8 80~85 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.
  • Page 32 Meanwhile, the switch at the high pressure side of the manifold valve assembly should be kept closed, otherwise evacuation would fail. (5) The evacuation duration depends on the unit’s capacity, generally. Model Time(min) GUD50P/B-S GUD50PS/B-S...
  • Page 33 DC Inverter U-match Series Duct Type Unit Model Time(min) GUD71PH/B-S GUD71PHS/B-S GUD100PH/B-S GUD100PHS/B-S GUD125PH/B-S GUD125PHS/B-S GUD140PH/B-S GUD140PHS/B-S GUD160PH/B-S GUD160PHS/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. Then, close the switch fully and then stop the vacuum pump.
  • Page 34 DC Inverter U-match Series Duct Type Unit 3.2.4.2 Leak Detection Methods The following leak detection methods are deemed acceptable for systems containing flammable refrigerants. Electronic leak detectors shall be used to detect flammable refrigerants, but the sensitivity may not be adequate, or may need re-calibration (Detection equipment shall be calibrated in a refrigerant-free area).
  • Page 35 DC Inverter U-match Series Duct Type Unit 3.2.6 Installation of Drain Pipe (1) It is not allowed to connect the condensate drain pipe into waste pipe or other pipelines which are likely to produce corrosive or peculiar smell to prevent the smell from entering indoors or corrupt the unit. (2) It is not allowed to connect the condensate drain pipe into rain pipe to prevent rain water from pouring in and cause property loss or personal injury.
  • Page 36 DC Inverter U-match Series Duct Type Unit (5) Use a suitable drain hose. (6) There is a drain port on both the left and right sides. Select the drain port to match the local conditions. See the following figure. (7) When the unit is shipped from the factory, the drain port is defaulted to be the one on the left side (electric box side).
  • Page 37 DC Inverter U-match Series Duct Type Unit 3.2.6.2 Outdoor Side Drain Pipe 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 38 (1) For the unit with the condensate pump, only one drain port at the side close to the electric box is prepared and only through it the drain hose can be connected. Item Drain pipe Model (outer dimension)(mm) GUD50P/B-S GUD50PS/B-S GUD71PH/B-S GUD71PHS/B-S GUD100PH/B-S GUD100PHS/B-S Ф25...
  • Page 39 DC Inverter U-match Series Duct Type Unit with the same way aforementioned. (3) The lifted installation height of drainage pipe is less than 1,000mm, as is shown in the following figure. Unit:mm The vertical height of the drain hose should be 75mm or less so that it is unnecessary for the drain port to withstand additional force.
  • Page 40 DC Inverter U-match Series Duct Type Unit NOTICE: The specification of the selected merged drainage pipe shall be appropriate for the operation capacity of the unit. (4) Drain branch should be connected to the vertical or horizontal part of the main drain pipe.
  • Page 41 3.2.7 Installation of the Duct 3.2.7.1 Dimensions of the Supply Air Outlet/Return Air Inlet Supply Air Outlet Return Air Inlet Unit: mm Supply Air Outlet Return Air Inlet Item Model GUD50P/B-S 1000 GUD50PS/B-S GUD71PH/B-S GUD71PHS/B-S GUD100PH/B-S GUD100PHS/B-S GUD125PH/B-S GUD125PHS/B-S 1150...
  • Page 42 DC Inverter U-match Series Duct Type Unit 3.2.7.2 Return Air Method (1) The default ex-factory return air method is from the back. The return air cover shall be installed at the bottom of the unit, as is shown in the following figure.
  • Page 43 DC Inverter U-match Series Duct Type Unit 3.2.7.4 Installation of Fresh Air Duct (1) While connecting the fresh air duct, cut off the fresh air baffle plate as is shown in the following figure. If the fresh air duct is not used, block the gap of fresh air baffle plate with sponge.

  • Page 44: Electrical Installation

    DC Inverter U-match Series Duct Type Unit ⑤. Noise reduction and shock absorption shall be considered in air duct design and construction. Moreover, the noise source shall avoid the crowd, e.g. the return air inlet shall never be designed at the top of the user (office and rest area).
  • Page 45 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 46 DC Inverter U-match Series Duct Type Unit NOTICE: ①. Fuse is located on the main board. ②. Install a circuit breaker at every power terminal near the units (indoor and outdoor units) with at least 3mm contact gap. The units must be able to be plugged or unplugged.
  • Page 47 DC Inverter U-match Series Duct Type Unit 4) Form a proper ring and then put it on the terminal board. Use a screwdriver to tighten up the terminal screw. (2) For strand wires (as shown below): 1) Use wire cutters to cut off the wire end and then peel away about 10mm of the insulation layer.
  • Page 48 (Insulators must be clamped securely; otherwise, electric leakage may occur.) (6) Ground wire should be connected. (4) Wire between indoor and outdoor units. Single-phase unit: GUD50W/NhB-S, GUD71W/NhB-S. GUD50P/B-S+GUD50W/NhB-S, GUD50PS/B-S+GUD50W/NhB-S ①. Power cords 3×1.5mm² ②. Power cords 3×1.0mm² ③. Communication cords 2×0.75mm²...
  • Page 49 DC Inverter U-match Series Duct Type Unit GUD71PH/B-S+GUD71W/NhB-S, GUD71PHS/B-S+GUD71W/NhB-S ①. Power cords 3×2.5mm² ②. Power cords 3×1.0mm² ③. Communication cords 2×0.75mm² ④. Communication cords 2×0.75mm² ⑤. Connection wires of DRED module Single-phase Unit: GUD100W/NhB-S. GUD100PH/B-S+GUD100W/NhB-S, GUD100PHS/B-S+GUD100W/NhB-S ①. Power cords 3×4.0mm² ②.
  • Page 50 DC Inverter U-match Series Duct Type Unit Single-phase Unit: GUD125W/NhB-S, GUD140W/NhB-S, GUD160W/NhB-S. GUD125PH/B-S+GUD125W/NhB-S, GUD125PHS/B-S+GUD125W/NhB-S ①. Power cords 3×4.0mm² ②. Power cords 3×1.0mm² ③. Communication cords 2×0.75mm² ④. Communication cords 2×0.75mm² ⑤. Connection wires of DRED module GUD140PH/B-S+GUD140W/NhB-S, GUD140PHS/B-S+GUD140W/NhB-S GUD160PH/B-S+GUD160W/NhB-S, GUD160PHS/B-S+GUD160W/NhB-S ①.
  • Page 51 DC Inverter U-match Series Duct Type Unit (5) Electrical wiring of indoor unit and 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 52 DC Inverter U-match Series Duct Type Unit Only for GUD125PH/B-S, GUD125PHS/B-S, GUD140PH/B-S, GUD140PHS/B-S, GUD160PH/B-S, GUD160PHS/B-S. 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.
  • Page 53 DC Inverter U-match Series Duct Type Unit B. Wire routing of unified power supply. Single-phase: GUD100W/NhB-S, GUD125W/NhB-S. A. Wire routing of separated power supply for single phase.
  • Page 54 DC Inverter U-match Series Duct Type Unit B. Wire routing of unified power supply for single phase. Single-phase: GUD140W/NhB-S. A. Wire routing of separated power supply for single phase.
  • Page 55 DC Inverter U-match Series Duct Type Unit B. Wire routing of unified power supply for single phase.
  • Page 56 DC Inverter U-match Series Duct Type Unit Single-phase: GUD160W/NhB-S. A. Wire routing of separated power supply for single phase. B. Wire routing of unified power supply for single phase.

  • Page 57: Check After Installation

    DC Inverter U-match Series Duct 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 58: Test Running

    DC Inverter U-match Series Duct 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 59: Maintenance

    DC Inverter U-match Series Duct 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 the compressor and Please wait for a while.
  • Page 60 DC Inverter U-match Series Duct Type Unit (2) The following situations are not operation failures. Problem Time of occurrence Cause If the unit is running under Mist comes from high humidity, the wet air in During operation. the air conditioner. the room will be quickly cooled down.

  • Page 61: 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 62 DC Inverter U-match Series Duct Type Unit Number Error code Error 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 Over-current protection Master control and driver communication error Driver module sensor error...

  • Page 63: Unit Maintenance

    DC Inverter U-match Series Duct Type Unit 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. (2) Do not wash the air conditioner with water, otherwise fire hazard or electric shock may occur.

  • Page 64: Notice On Maintenance

    (4) If the outdoor unit is rusty, coat the rusty location with paint to prevent it from expanding. 5.3.6 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 65 DC Inverter U-match Series Duct 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 66 DC Inverter U-match Series Duct Type Unit disperse any released refrigerant and preferably expel it externally into the atmosphere. 5.4.1.8 Checks to the Refrigeration Equipment Where electrical components are being changed, they shall be fit for the purpose and to the correct specification. At all times the manufacturer’s maintenance and service guidelines shall be followed.
  • Page 67 DC Inverter U-match Series Duct Type Unit (2) That no live electrical components and wiring are exposed while charging, recovering or purging the system. (3) That there is continuity of earth bonding. 5.4.2 Repairs to Sealed Components (1) During repairs to sealed components, all electrical supplies shall be disconnected from the equipment being worked upon prior to any removal of sealed covers, etc.
  • Page 68 DC Inverter U-match Series Duct Type Unit 5.4.4 Cabling Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse environmental effects. The check shall also take into account the effects of ageing or continual vibration from sources such as compressors or fans.
  • Page 69 DC Inverter U-match Series Duct Type Unit 5.4.7 Charging Procedures In addition to conventional charging procedures, the following requirements shall be followed. (1) Ensure that contamination of different refrigerants does not occur when using charging equipment. Hoses or lines shall be as short as possible to minimize the amount of refrigerant contained in them.
  • Page 70 DC Inverter U-match Series Duct Type Unit (4) Pump down refrigerant system, if possible. (5) If a vacuum is not possible, make a manifold so that refrigerant can be removed from various parts of the system. (6) Make sure that cylinder is situated on the scales before recovery takes place.

  • Page 71: 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.

This manual is also suitable for:

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