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Owner's Manual

Original Instructions

Commercial Air Conditioners

AHU-KIT

Models

：

GMV-N12U/A-T(U)

GMV-N24U/A-T(U)

GMV-N48U/A-T(U)

GMV-N96U/A-T(U)

GMV-N192U/A-T(U)

Содержание GMV-N12U/A-T(U)

Страница 1: ...Owner s Manual Original Instructions Commercial Air Conditioners AHU KIT Models GMV N12U A T U GMV N24U A T U GMV N48U A T U GMV N96U A T U GMV N192U A T U...

Страница 2: ...ld well keep this manual 6 If this unit fails to operate normally please contact our service center as soon as possible and provide the following information 1 Content on the nameplate model number co...

Страница 3: ...allation of the EXV Cable 25 4 4 Piping Installation 25 4 5 Installation of the Control Box 27 4 6 Installation of the Temperature sensors 29 4 7 Installation of Wired Controller 32 5 Wire Connection...

Страница 4: ...the compressor 12 Do not allow children operate this unit 13 Do not operate this unit with wet hands 14 Turn off the unit or cut off the power supply before cleaning the unit otherwise electric shock...

Страница 5: ...nit appearance Only use soft cloth with a little neutral detergent to clean the outer casing of unit 27 If anything abnormal happens such as burning smell please power off the unit and cut off the mai...

Страница 6: ...Product Introduction 2 1 Names of Key Components Fig 2 1 No Name Control Box EXV Box 2 2 Overall System Connection Diagram When one AHU KIT is connected to one AHU the connection diagram is as follow...

Страница 7: ...AHU KIT 4 When several AHU KITs n 2 are in parallel connection with one AHU the connection diagram is as follows Fig 2 2 2...

Страница 8: ...92 type 2 2 4 Specifications Model GMV N12U A T U GMV N24U A T U GMV N48U A T U Defaulted capacity of ex factory Capacity 12 24 48 Cooling kW 3 52 7 03 14 07 Cooling kBtu h 12 0 24 0 48 0 Heating kW 3...

Страница 9: ...x factory Capacity 96 192 Cooling kW 28 14 56 27 Cooling kBtu h 96 0 192 Heating kW 31 65 63 31 Heating kBtu h 108 0 216 Adjustable capacity Capacity 72 96 120 144 168 192 288 Cooling kW 21 10 28 14 3...

Страница 10: ...ve box mm 203 326 85 246 500 120 in 8 12 7 8 3 3 8 9 5 8 19 5 8 4 3 4 Control box mm 334 284 111 2 in 13 1 8 11 1 8 4 3 8 2 Net weight kg 9 5 13 lbs 21 28 NOTICE The specifications of the unit is subj...

Страница 11: ...336 22 54 26 29 288 336 324 378 7450 10435 a The capacity is obtained at these test conditions superheat SH 5 41 and supercool SC 3 37 4 Cooling Saturated evaporating temperature 6 42 8 air return tem...

Страница 12: ...F outdoor unit Total capacity of AHU KIT should be 50 110 of that of outdoor unit Model Capacity in application kBtu h Capacity DIP GMV N12U A T U 9 28 12 36 GMV N24U A T U 15 45 18 56 24 71 GMV N48U...

Страница 13: ...18 56 24 71 GMV N48U A T U 30 90 36 112 48 140 GMV N96U A T U 72 224 96 280 NOTICE When connecting AHU KIT with general VRF indoor unit capacity requirement shall be followed strictly Otherwise it ma...

Страница 14: ...ore hybrid connection connection diagram 3 Preparations for Installation 3 1 Before Installation NOTICE Product graphics are only for reference Please refer to actual products Unspecified measure unit...

Страница 15: ...are during construction and check after installation is finished Tick when checked Are the temperature sensors fixed firmly Temperature sensor may come loose Is the capacity code set correctly System...

Страница 16: ...it in rooms mentioned below a Where mineral oil like cutting oil is present b Where the air contains high levels of salt such as air near the ocean c Where sulphurous gas is present such as that in ar...

Страница 17: ...r 3 If unit is installed in places with intense magnetic field or strong interference it is necessary to use shielded wire Connection between AHU KIT and wired controller is shown as follows 1 When on...

Страница 18: ...otal communication cable length can reach 1500m 4920 ft 2 The cord shall be Circular cord the cores shall be twisted together 3 If unit is installed in places with intense magnetic field or strong int...

Страница 19: ...t The minimum distance between each stage of cut off device should be 3 mm 1 8 in The same for both indoor unit and outdoor unit 3 5 Piping Requirements 3 5 1 Selection of Piping Requirements 1 Ensure...

Страница 20: ...h pipe c d between indoor units shall be selected according to the total capacity of downstream IDUs as follows Selection of branch pipe between indoor units Total rated capacity of downstream IDUs C...

Страница 21: ...ated capacity of IDU 5 Piping I1 I2 J H between branch pipe and AHU KIT shall be selected according to the capacity of AHU KIT Relationship between capacity and piping dimension is as below NOTICE As...

Страница 22: ...ialing capacity code of mainboard shown as S1 Capacity code setting is shown as follows S1 Capacity kBtu h 1 2 3 4 5 0 1 0 0 0 9 0 0 1 0 0 12 0 1 1 0 0 15 0 0 0 1 0 18 0 1 0 1 0 24 0 0 1 1 0 30 0 1 1...

Страница 23: ...prevented from getting mixed into the system 4 Installation Instructions 4 1 Unit Dimensions and Maintenance Space 1 Size of control box for GMV N12U A T U GMV N24U A T U GMV N48U A T U GMV N96U A T U...

Страница 24: ...AHU KIT 21 Fig 4 1 2 3 Size of EXV box for GMV N192U A T U Unit mm in Fig 4 1 3...

Страница 25: ...AHU KIT 22 Maintenance space of control space Unit mm in Fig 4 1 4 Maintenance space of EXV box Unit mm in Fig 4 1 5...

Страница 26: ...the provided holes 12mm 1 2 in Make sure that the EXV box is installed upwards Make sure there is enough free space in front and in the side of the box for future maintenance 4 2 2 Brazing Work 1 Prep...

Страница 27: ...otected from direct brazing flames during brazing 5 The EXV box is required to be installed in a vertical direction within the range of 90 15 not allowed for horizontal work Welding the connection tub...

Страница 28: ...s 1 Ensure that the cable in the control box is in a relaxed state and both the joint of terminal and the fixed place of magnetic ring are all not under a stress 2 Ensure that the cable sheath port is...

Страница 29: ...of the air handling unit to the EXV box is no more than 2 m if the air handling unit is installed under the EXV box vertical distance between the bottom of the air handling unit to the EXV box is no m...

Страница 30: ...ts 4 Install the screw nuts 5 Close the unnecessary openings 6 Close the lid securely after installation to ensure that the control box is watertight 4 5 1 Wire connection Inside the Control Box 4 5 1...

Страница 31: ...als Keep the wires in order and do not obstruct other devices Insecure connection may result in overheating or even cause electric shock or fire hazard Wiring connection Fig 4 5 3 Connecting cables ac...

Страница 32: ...rmation cable to either AHU KIT Put through the wires to the coil tighten the coil while maintaining loose condition of wires to ensure it is not closely tied up and is waterproof When power supply is...

Страница 33: ...ress Stress or looseness of temperature sensor wire will lead to poor contact and inaccuracy of temperature measuring Fixation of the temperature sensor Put the temperature sensor wire slightly down t...

Страница 34: ...sensor with rubber belt to prevent looseness of temperature sensor Use two wire ties to bind the temperature sensor securely Wrap the temperature sensor with insulating trip 4 6 2 Air Temperature sens...

Страница 35: ...kage AHU KIT inlet pipes and outlet pipes temperature sensor must be installed at the position of corresponding pipeline of air handling unit Install the ambient temperature sensor at the same positio...

Страница 36: ...uring wire connection please pay attention that the metal shield layer of the twin twisted wire must be grounded outer case in order to prevent the unit from electromagnetic interference The communica...

Страница 37: ...rotection In general this circuit breaker is under close status During operation process all indoor units and outdoor units in one system must be energized Otherwise the system can t operation normall...

Страница 38: ...d with wiring clamp 5 3 Connection of Communication Wire between Indoor Unit and Outdoor Unit or Indoor Unit Detach the control box lid 1 Let the Communication cable pass through the wiring through ho...

Страница 39: ...iring instructions of remote receiving light board and wired controller Fig 5 4 shows the installation of wired controller Fig 5 4 5 5 Illuminate for Connection of Wired Controller and Indoor Units AH...

Страница 40: ...ntroller 2 When the indoor unit is controlled by two wired controllers the addresses of the two wired controllers should be different through address setting Address 1 is for main controller Address 2...

Страница 41: ...ch means the number of AHU KIT under the control of wired controller is 1 short press Mode and revise actual controlled AHU KIT quantity through pressing and button If two AHU KITs are in parallel con...

Страница 42: ...ng unit is ON 7 3 Routine Maintenance Only a qualified service person is allowed to perform maintenance Before obtaining access to terminal devices all power supply circuits must be interrupted Water...

Страница 43: ...or Units Setting Error d8 Water Temperature Sensor Error L1 Error From External Feedback LA Indoor Units Incompatibility Error d9 Jumper Cap Error L2 E heater Protection LH Low Air Quality Warning dA...

Страница 44: ...or people in the room Doors or windows are open Obstacle at the air intake and outlet of the unit Setting temperature is too high or refrigerant is insufficient e g refrigerant leakage Poor performanc...

Страница 45: ......

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