AlpicAir AOU Series Owner's Manual
  1. Manuals
  2. Brands
  3. AlpicAir Manuals
  4. Air Conditioner
  5. AOU Series
  6. Owner's manual

AlpicAir AOU Series Owner's Manual

Dc inverter vrf
Hide thumbs

Advertisement

Table of Contents

Owner's Manual
Original Instructions
Commercial Air Conditioners
AOU DC Inverter VRF
Model:
AOU-224VRDC3B AOU-282VRDC3B
AOU-280VRDC3B AOU-335VRDC3B
AOU-400VRDC3B AOU-450VRDC3B
AOU-451VRDC3B AOU-504VRDC3B
AOU-560VRDC3B AOU-615VRDC3B

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the AOU Series and is the answer not in the manual?

Questions and answers

Related Manuals for AlpicAir AOU Series

Summary of Contents for AlpicAir AOU Series

  • Page 1 Owner's Manual Original Instructions Commercial Air Conditioners AOU DC Inverter VRF Model: AOU-224VRDC3B AOU-282VRDC3B AOU-280VRDC3B AOU-335VRDC3B AOU-400VRDC3B AOU-450VRDC3B AOU-451VRDC3B AOU-504VRDC3B AOU-560VRDC3B AOU-615VRDC3B...
  • Page 2 We have the right to make necessary revision to the product from time to time due to the reason of sales or production, and reserve the right to revise the contents without further notice. (8) The final right to interpret for this instruction manual belongs to AlpicAir.

  • Page 3: Combinations Of Indoor And Outdoor Units

    Contents 1 SAFETY NOTICES (PLEASE BE SURE TO ABIDE) ..............1 2 PRODUCT INTRODUCTION ......................4 2.1 N ....................... 4 AMES OF ARTS 2.2 C ................. 5 OMBINATIONS OF NDOOR AND UTDOOR NITS 2.3 T ..............7 ANGE OF RODUCTION ORKING EMPERATURE 3 PREPARATION BEFORE INSTALLATION ..................
  • Page 4 AOU DC Inverter VRF 1 Safety Notices (Please be sure to abide) 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 5 AOU DC Inverter VRF Never fail to comply with the Never short-circiut or cancel nitrigen charge the pressure switch to prevent requirements.Charge nitrogen unit damage. when welding pipes. Before using the unit, please Please firstly connect the wired check if the piping and wiring controller before energization, are correct to avoid water otherwise wired controller can...
  • Page 6 ALPICAIR will not assume responsibility of personal injury or equipment damage caused by improper installation and commission, unnecessary service and incapable of following the rules and instructions listed in this manual.
  • Page 7 10%-100% can be realized. Various product lineup is provided with capacity range from 22.4kW to 246kW, which can be widely used in working area and especially applicable to the place with variable load change.ALPICAIR air conditioner is absolutely your best choice. 2.1 Names of Main Parts Fig.

  • Page 8: Table Of Contents

    AOU DC Inverter VRF 2.2 Combinations of Indoor and Outdoor Units (1) The following table indicates the number of IDU for ODU ODU model Max number of connectable IDU (unit) AOU-224VRDC3B AOU-280VRDC3B AOU-282VRDC3B AOU-335VRDC3B AOU-400VRDC3B AOU-451VRDC3B AOU-450VRDC3B AOU-504VRDC3B AOU-560VRDC3B AOU-615VRDC3B AOU-680~2460VRDC3B 39~80...
  • Page 9 AOU DC Inverter VRF The total capacity of indoor units should be within 50%~135% of that of outdoor units. Fig. 2.3.1 Fig. 2.3.1 is the combination view of the ODU of Modular DC Inverter Multi VRF System and the IDU of Multi VRF System. IDU can be cassette type, one-way cassette type, wall-mounted type, duct type, etc.
  • Page 10 3 Preparation before Installation Note: The picture is only used for reference and the actual product prevails. Unit: mm. 3.1 Standard Parts Please use the following standard parts supplied by ALPICAIR. Parts for Outdoor Unit Number Name Picture...
  • Page 11 AOU DC Inverter VRF Leave some space for heat Try to keep the unit away from exchanging and servicing so combustible, inflammable and as to guarantee unit normal corrosive gas or exhaust gas. operation. Keep the indoor and outdoor Never allow children to units close to each other as approach to the unit and take much as possible so as to...
  • Page 12 AOU DC Inverter VRF 3.2.1.3 Space dimension for three-module unit Fig. 3.2.3 3.2.1.4 Space dimension for four-module unit Fig. 3.2.4 3.2.2 When there is wall (or similar obstruction) above the unit, keep the distance between the unit top and the wall at least 3000mm or above. When the unit is located in a totally open space with no obstructions in four directions, keep the distance between the unit top and wall at least 1500mm or above (See Fig.
  • Page 13 AOU DC Inverter VRF Fig. 3.2.5 Fig. 3.2.6 3.2.3 Space dimension for multiple-module unit For keeping good ventilation, make sure there is no obstructions above the unit. When the unit is located at a half-open space (front and left/right side is open), install the unit as per the same or opposite direction.
  • Page 14 AOU DC Inverter VRF 3.2.4 Take seasonal wind into consideration when installing the outdoor unit （1）Anti-monsoon installation requirements for unit not connecting exhaust duct: Fig. 3.2.9 （2）Anti-monsoon installation requirements for unit connecting exhaust duct: Fig. 3.2.10...
  • Page 15 AOU DC Inverter VRF 3.2.5 Take snow into consideration when installing the outdoor unit Fig. 3.2.11 3.3 Piping Work Requirements Refer to the table below for piping work requirements. R410A Refrigerant System Outer Diameter (mm) Wall Thickness (mm) Type Φ6.35 ≥0.8 ≥0.8 Φ9.52...
  • Page 16 AOU DC Inverter VRF 4 Installation Instruction 4.1 Physical Dimension of the Outdoor Unit and Mounting Hole Outline Physical Dimention of AOU-224VRDC3B, AOU-280VRDC3B and AOU-282VRDC3B unit Unit: mm Fig. 4.1.1...
  • Page 17 AOU DC Inverter VRF Outline and Physical Dimention of AOU-335VRDC3B, AOU-400VRDC3B and AOU-451VRDC3B unit Unit: mm Fig. 4.1.2...
  • Page 18 AOU DC Inverter VRF Outline and Physical Dimention of AOU-450VRDC3B, AOU-504VRDC3B, AOU-560VRDC3B and AOU-615VRDC3B unit Unit: mm Fig. 4.1.3...
  • Page 19 AOU DC Inverter VRF 4.2 Connection Pipe 4.2.1 Schematic Diagram of Piping Connection Fig. 4.2.1...

  • Page 20: Aou-224Vrdc3B

    AOU DC Inverter VRF 4.2.2 Schematic Diagram of Piping Sequence AOU-280VRDC3B and AOU-282VRDC3B AOU-224VRDC3B Fig. 4.2.2 AOU-400VRDC3B and AOU-451VRDC3B AOU-335VRDC3B Fig. 4.2.3...
  • Page 21 AOU DC Inverter VRF AOU-450VRDC3B, AOU-504VRDC3B, AOU-560VRDC3B and AOU-615VRDC3B Fig. 4.2.4 4.2.3 Allowable pipe length and drop height among indoor and outdoor units Y type branch joint is adopted to connect indoor and outdoor units. Connecting method is shown in the figure below. Remark: Equivalent length of one Y-type manifold is about 0.5m.

  • Page 22: Aou-400Vrdc3B

    AOU DC Inverter VRF L10: Length from the first branch to the farthest IDU; L11: Length from the first branch to the nearest IDU; Equivalent length of branch of IDU is 0.5m Allowable R410A Refrigerant System Fitting Pipe Value Total length (actual length) of fitting pipe ≤1000 L1+L2+L3+L4+…+L9+a+b+…+i+j Actual length...
  • Page 23 AOU DC Inverter VRF (3) If the length between an IDU and its nearest branch is above 10m, then increase the size of the liquid pipe of IDU (only for the pipe size that is≤6.35mm).
  • Page 24 AOU DC Inverter VRF 4.2.4 Connection Pipe among Outdoor Modules Fig. 4.2.6 Fig. 4.2.7 Note: When the distance between outdoor units exceeds 2m, U-type oil trap should be added at low-pressure gas pipe. A+B 10m. ≤ 4.2.5 Fitting pipe between Outdoor Unit and the First Manifold 4.2.5.1 For single module system, pipe size (between outdoor unit and the first manifold) is determined by that of outdoor unit.
  • Page 25 AOU DC Inverter VRF Pipe size of basic outdoor module is shown as follows: Pipe between ODU and the first branch of IDU Basic Module Gas Pipe(mm) Liquid Pipe(mm) AOU-224VRDC3B Φ19.05 Φ9.52 AOU-280VRDC3B Φ22.2 Φ9.52 AOU-282VRDC3B Φ22.2 Φ9.52 AOU-335VRDC3B Φ25.4 Φ12.7 AOU-400VRDC3B Φ25.4...
  • Page 26 AOU DC Inverter VRF Select the branch of outdoor module Model Select the branch of outdoor module ML01/A 4.2.5.3 Fitting pipe between two manifolds from basic modules Pipe size (between two manifolds from basic modules) is based on the total capacity of upstream modules.
  • Page 27 AOU DC Inverter VRF Pipe between ODU and the first branch of IDU Basic Module(single module) Gas Pipe(mm) Liquid Pipe(mm) AOU-224VRDC3B Φ19.05 Φ9.52 AOU-280VRDC3B Φ22.2 Φ9.52 AOU-282VRDC3B Φ22.2 Φ9.52 AOU-335VRDC3B Φ25.4 Φ12.7 AOU-400VRDC3B Φ25.4 Φ12.7 AOU-451VRDC3B Φ28.6 Φ12.7 AOU-450VRDC3B Φ28.6 Φ12.7 AOU-504VRDC3B Φ28.6...
  • Page 28 AOU DC Inverter VRF 4.2.5.5 Manifold at indoor unit side Manifold at indoor unit side can be selected as per total capacity of downstream indoor unit(s). Refer to the following table. Fig. 4.2.13(a) Fig. 4.2.13(b)
  • Page 29 AOU DC Inverter VRF Total capacity of downstream R410A Refrigerant System Model indoor unit(s) C (kW) C＜20.0 FQ01A/A 20.0≤C≤30.0 FQ01B/A 30.0＜C≤70.0 Y-type Manifold FQ02/A 70.0＜C≤135.0 FQ03/A 135.0＜C FQ04/A C≤40.0 FQ014/H1 T- type Manifold 40.0＜C≤68.0 FQ018/H1 68.0＜C FQ018/H2 4.2.5.6 Fitting pipe between manifolds Pipe size (between two manifolds at indoor unit side) is based on the total capacity of upstream indoor unit(s).
  • Page 30 AOU DC Inverter VRF 4.2.5.7 Fitting pipe between indoor unit and manifold Manifold should be matched with fitting pipe of indoor unit. Fig. 4.2.15 Pipe between indoor branch and IDU Rated capacity of indoor unit C(kW) Gas Pipe(mm) Liquid Pipe(mm) C≤2.8 Φ9.52 Φ6.35...
  • Page 31 AOU DC Inverter VRF (4) Please use a torque wrench to connect union nut on the indoor unit.See Fig. 4.3.1. Fig. 4.3.1 1) Align the expansion end of copper pipe with the center of threaded joint. Tighten the flare nuts with your hands. 2) Tighten the flare nuts with torque wrench until you hear "click"...
  • Page 32 AOU DC Inverter VRF (2) Manifold has serveral pipe sections with different pipe size, which facilitates to match with various copper pipe. Use pipe cutter to cut in the middle of the pipe section with different pipe size and deburr as well. See Fig. 4.3.3. Cut from the center Fig.
  • Page 33 AOU DC Inverter VRF The length of a straight pipe between two manifolds cannot be less than 500 mm. The length of a straight pipe before the main pipe port of the manifold cannot be less than 500 mm. The length of a straight pipe between the branch of the manifold and the IDU cannot be less than 500 mm.
  • Page 34 AOU DC Inverter VRF (4) Suspend the header to the ceiling ,and be sure to install the T-type manifold so that the outlet pipes are horizontal at the lower side. See Fig. 4.3.7. Fig. 4.3.7 (5) Thermal insulation for pipeline 1) To avoid condensate or water leakage on connecting pipe, the gas pipe and liquid pipe must be wrapped with thermal insulating material and adhesive pipe for insulation from the air.
  • Page 35 AOU DC Inverter VRF 4) Manifold attached foam can not be taken as insulating material. 5) When wrapping the tape, the later circle should cover half of the former one. Don’t wrap the tape so tightly, otherwise the insulation effect will be weakened. 6) After wrapping the pipe, adopt sealing material to completely fill the hole so as to prevent wind and rain from entering the room.
  • Page 36 AOU DC Inverter VRF (1) Pipeline charging amount Pipeline charging amount A= ∑Liquid pipe length×refrigerant charging amount of every 1m liquid pipe Diameter of liquid Φ28.6 Φ25.4 Φ22.2 Φ19.05 Φ15.9 Φ12.7 Φ9.52 Φ6.35 pipe (mm) kg/m 0.680 0.520 0.350 0.250 0.170 0.110 0.054...
  • Page 37 AOU DC Inverter VRF R (Quantity of added refrigerant in total) = 5+0=5kg Modular combination of outdoor unit subjects to combinations that is currently available. After confirming that there is no leakage from the system, when the compressor is not in operation, charge additional R410A with specified amount to the unit through the filling opening of the liquid pipe valve of the outdoor unit.
  • Page 38 AOU DC Inverter VRF air, pay attention to the spaces where the refrigerant may residue, for example, the basement. 4.5 Electric Wiring 4.5.1 Wiring precautions  Wiring should conform to national rules. All the parts, materials, electric work should be in accordance with local codes.
  • Page 39 AOU DC Inverter VRF Circuit Circuit breaker Wire size of breaker capacity for Wire size of combined Model Basic models power supply capacity combined units uni (mm AOU-450VRDC3B 6.0×5 10×5 AOU-504VRDC3B 10×5 AOU-560VRDC3B 10×5 AOU-615VRDC3B AOU-680~2460VRDC3B 280+400~615+615+615+615 25+40~63+63+63+63 2.5+6.0~10+10+10+10 2.5*5+6.0*5~10*5+10*5+10*5+10*5 63~225...
  • Page 40 AOU DC Inverter VRF Note: ① “280+400”: indicates the combination of AOU-282VRDC3B and AOU-400VRDC3B unit. ② Due to the same capacity, AOU-280VRDC3B model and AOU-282VRDC3B model can replace each other for operation, AOU-451VRDC3B model and AOU-450VRDC3B model can replace each other for operation. ③...
  • Page 41 AOU DC Inverter VRF Power cord and communication wire should be separated, with a distance of more than 20cm. Otherwise, system’s communication may not work well. (5) Steps of power cord connection: 1) Knock off the cross-through opening that’s used for leading the external power cord, with the cross-through rubber ring on the opening.
  • Page 42 AOU DC Inverter VRF Fig. 4.6.1 4.6.2 Communication mode 8 CAN bus mode is taken for communication between IDU and ODU and communication among IDUs. 4.6.3 Selection and connection mode of communication material 4.6.3.1 Select communication material Note: if air conditioners are installed at places where there’s strong electromagnetic interference, the communication wire of IDU and wired controller must use shielded wire and the communication wire between IDU and IDU/ODU must use shielded twisted pair.
  • Page 43 AOU DC Inverter VRF Graphic of connection between IDU and wired controller Fig. 4.6.2 (2) Select communication wire between ODU and IDU Total Length L(m) of Communication Cable Wire size Material Material Type Remarks between IDU Unit and Standard IDU (ODU ) Unit 1.
  • Page 44 AOU DC Inverter VRF Fig. 4.6.5 Fig. 4.6.6 (2) All communication wires are connected by screws. Fig. 4.6.7 (3) If a single communication wire is not long enough and needs to be connected, the connected joint must be welded or pressure-welded. Do not simply twist the wires together.
  • Page 45 AOU DC Inverter VRF manually. Only the addresses of master unit and central control are needed to be set (address of central control is only needed when there are multiple refrigeration systems). Note: When installing remote monitor or central controller, displacement on indoor units’ project codes must be made.
  • Page 46 AOU DC Inverter VRF Fig. 4.7.2 Connection of modular units Note: ①For modular outdoor units, if there are multiple outdoor modules, then the master unit must be the first outdoor module on the communication wire and should not connect with IDU (master unit is set by SA8 of the outdoor main board). ②For modular outdoor units, if there are multiple outdoor modules, then indoor units must be connected with the last slave module of ODU (slave module is set by SA8 of the outdoor main board).
  • Page 47 AOU DC Inverter VRF 4.7.2 Communication connection between IDU and wired controller There are four kinds of connection between IDU and wired controller, as shown below: Fig. 4.7.3 One wired controller controls one IDU Fig. 4.7.4 Two wired controllers control one IDU Fig.
  • Page 48 AOU DC Inverter VRF When two wired controllers control multiple IDUs, the wired controller can be connected to any one IDU, provided that the connected IDU is of the same series. Meanwhile, one and only one of the wired controllers must be set as a slave controller. At most 16 IDUs can be controlled by wired controllers and the connected IDUs shall be within a same IDU network.
  • Page 49 AOU DC Inverter VRF Note: ①Wired controller and light board remote receiver can be used at the same time. ②When light board remote receiver is used, please use remote controller at the same time. 4.7.4 Communication connection of central controlling units Note:The centralized controller can be installed when it is necessary.
  • Page 50 AOU DC Inverter VRF 4.8 External Electrical Wiring Diagram Every unit should be equipped with a circuit breaker for short-circuit and overload protection. In general, circuit breaker is at OFF status. During operation, all indoor units and outdoor units belonging to the same system must be kept energized status. Otherwise, the unit can’t operate normally.
  • Page 51 AOU DC Inverter VRF 4.8.2 External wiring diagram of modular connection Fig. 4.8.2 Note: maximum number of ODU (N) and maximum number of IDU (n) are based upon the combination type of ODU. For details, please refer to the introduction of units’ combination. 5 Check Items after Installation and Trial Run 5.1 Check Items after Installation Check Items...
  • Page 52 AOU DC Inverter VRF Check Items Conditions Might Happen Check Has the pipe length and refrigerant charging The refrigerant charging amount is not amount been recorded? accurate. The unit can not run normally. Communication Is the address code of outdoor modules correct? malfunction might happen.
  • Page 53 AOU DC Inverter VRF Fig. 5.2.1 (2) When debugging starts, system will operate according to the ambient temperature. When outdoor temperature is above 20℃, debugging shall be in cooling mode. When outdoor temperature is below 20℃, debugging shall be in heating mode. (3) Before debugging, confirm again whether the cut-off valve of each basic module is fully turned on.
  • Page 54 AOU DC Inverter VRF Description of each stage of debugging progress Debugging Progress code Status code —— code LED1 LED2 LED3 Meaning progress Display Display Display Code code Code status status status light light blink System is allocating addresses. Master IDU is not set. Please set master IDU.
  • Page 55 AOU DC Inverter VRF Description of each stage of debugging progress Debugging Progress code Status code —— code LED1 LED2 LED3 Meaning progress Display Display Display Code code Code status status status light light light Outdoor valves are being turned on. 10_Status judgments of light...
  • Page 56 AOU DC Inverter VRF 5.2.2.2 Debugging operation mode AOU5E multi VRF system has two debugging modes: one is direct operation on main board of outdoor units while the other is PC operation via special software. In PC software debugging, indoor/outdoor parameters can be displayed and historical data can be recorded and inquired.
  • Page 57 AOU DC Inverter VRF board of each module will display: Debugging code Progress code Status code LED1 LED2 LED3 Progress Display Display Display Code Code Code status status status 03_Quantity of Quantity of light light blink modules modules If the quantity displayed is the same with actual quantity, then press SW7 confirmation button on the master unit to confirm it.
  • Page 58 AOU DC Inverter VRF If error is detected, system will stay at current progress. Error has to be solved manually. Below are relevant errors: Debugging code Progress code Status code —— LED1 LED2 LED3 Meaning progress Display Display Display Code code Code status...
  • Page 59 AOU DC Inverter VRF Below is relevant error: Debugging Progress code Status code —— code LED1 LED2 LED3 Meaning progress Display Display Display Code code Code status status status XXXXor 07_Detect indoor System detects error in indoor Light Light Error Light components components.
  • Page 60 AOU DC Inverter VRF If there’s no or not enough refrigerant in the system to meet the requirement of operation startup, system will display U4 “refrigerant shortage protection” and fails to start next progress. Then check if there’s any leakage or add refrigerant inside until error eliminated. Debugging code Progress code Status code ——...
  • Page 61 AOU DC Inverter VRF If master unit displays as below, system is waiting for confirmation signal. Debugging code Progress code Status code —— LED1 LED2 LED3 Meaning progress Display Display Display Code code Code status status status 12_Status judgments of Light Light Blink...
  • Page 62 AOU DC Inverter VRF B If heating mode is selected, relevant display is as below: Debugging Progress code Status code —— code LED1 LED2 LED3 Meaning progress Display Display Display Code code Code status status status Debugging is enabled in heating mode Light Light Light...
  • Page 63 AOU DC Inverter VRF 5.2.3 Appendix: judgment reference of normal operational parameters Reference of Debug Parameters of AOU5E DC Inverter Multi VRF System Debug item Parameter name Unit Reference Outdoor ambient temp ℃ —— Discharge tube temp of ●When system compressor starts up, temp of discharge ℃...
  • Page 64 AOU DC Inverter VRF Reference of Debug Parameters of AOU5E DC Inverter Multi VRF System Debug item Parameter name Unit Reference Operating freq of fan Hz Adjusts in 0~65Hz according to system pressure. motor 1 Current of fan motor 1 Operating freq of fan Hz ●Adjusts in 0~65Hz according to system pressure.
  • Page 65 For detail operation methods, please refer to the AOU5E Installation and Maintenance Manual. ②If problem can not be solved after checking the above items, please contact ALPICAIR service center and show phenomena and models. Following circumstance are not malfunction.
  • Page 66 AOU DC Inverter VRF 7 Error Indication Inquiry method of malfunction display: combine division number and content number to check the corresponding malfunction. Indoor: Error Code Content Error Code Content Malfunction of lower water Malfunction of IDU temperature sensor of water tank Malfunction of ambient temperature Protection of indoor fan sensor...
  • Page 67 AOU DC Inverter VRF Outdoor: Error Code Content Error Code Content Current sensor of compressor 2 is Malfunction of ODU abnormal Current sensor of compressor 3 is High-pressure protection abnormal Discharge low-temperature Current sensor of compressor 4 is protection abnormal Current sensor of compressor 5 is Low-pressure protection abnormal...
  • Page 68 AOU DC Inverter VRF Error Code Content Error Code Content Desynchronizing protection of Voltage protection of driving board inverter compressor power of fan Malfunction of drive storage chip of Reset protection of driving module of compressor High-voltage protection of Drive PFC protection of fan compressor’s drive DC bus bar Malfunction of current detection Over-current protection of inverter...
  • Page 69 AOU DC Inverter VRF Debugging: Error Code Content Error Code Content Preheat time of compressor is Alarm because ODU quantity is insufficient inconsistent Abnormal communication of Wrong setting of ODU’s capacity code/jumper cap converter Power supply phase sequence Emergency status of compressor protection Refrigerant-lacking protection Emergency status of fan...
  • Page 70 AOU DC Inverter VRF Status: Error Code Content Error Code Content Unit waiting for debugging Shielding status Refrigerant recovery operation of SE operation setting of system after-sales Defrosting Compulsory defrosting Limit setting for max. capacity/output Oil-return capacity Compulsory excursion of Heat pump function setting engineering code of IDU Quiet mode setting...
  • Page 71 ALPICAIR. Warranty should meet the folowing requirements: (1) First run of the unit should be operated by professional personnel from ALPICAIR appointed service center. (2) Only ALPICAIR manufactured accessories can be used on the machine.

This manual is also suitable for:

Aou-224vrdc3bAou-282vrdc3bAou-280vrdc3bAou-335vrdc3bAou-400vrdc3bAou-450vrdc3b ... Show all

Table of Contents