Airwell VVWO Series Installation Manual
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Airwell VVWO Series Installation Manual

Airwell VVWO Series Installation Manual

R410a
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Installation Manual
ODU VRF (VVWO Series)
R410A
English Manual
VVWO-220R-01T32
VVWO-280R-01T32
VVWO-335R-01T32
IMPORTANT NOTE:
22.AW.VVWO.220-335.R410A.IM.EN.03.30.Rev01

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  • Page 1 Installation Manual ODU VRF (VVWO Series) R410A English Manual VVWO-220R-01T32 VVWO-280R-01T32 VVWO-335R-01T32 IMPORTANT NOTE: 22.AW.VVWO.220-335.R410A.IM.EN.03.30.Rev01...

  • Page 2: Table Of Contents

    User Manual This VRF series adopts “mode consistence” Contents control method, which means all the indoor units can only operate cooling or heating at Safety ............1 one time. Installation instruction ........4 To protect compressor, before startup, the Product introduction........7 unit should be powered on over 12 hours or oil superheat should be over 20°C.

  • Page 3: Safety

    Safety • his manual should always be accessible and close to this air condition equipment. • here are two types of indications, " WARNING" and " CAUTION". The indication preventing from death or heavy injury is listed as " WARNING". Even the indication listed as "...
  • Page 4 Safety • rounding wire should be connected with the grounding bar. The grounding wire cannot be connected to the gas pipe, water pipe, lightening rod or the telephone grounding wire. Improper grounding may cause electric shock. • se the wrench to fasten the nut and flare at proper torque. Excessive torque may cause flared section to break, leading to refrigerant leakage.
  • Page 5 Safety • hen charging refrigerant, the refrigerant must be in liquid state from the tank. • o prevent EMC from interfering other appliances, please keep indoor unit, outdoor unit, power cable and connecting wire at least 1m away from those appliances . •...

  • Page 6: Installation Instruction

    Installation instruction Installation & Startup Quick Guides 1. Installation Procedure 1.1 Drafting of diagram, select the installing place including the wiring and piping 1.2 Pre-installation, including pipe protective sleeves, hooks, supports, etc. 1.3 Indoor installation 1.3.1 Indoor DIP switch settings 1.3.2 Indoor unit installation 1.3.3 Refrigerant piping installation 1.3.4 Drain piping installation...
  • Page 7 Installation instruction For installation, please review the items below: • Are the connected units quantity and the total capacity in the allowable range? • Is the refrigerant pipe length in the limited range? • Is the pipe size proper? And if the pipe is installed horizontally? •...
  • Page 8 Installation instruction (3) Installation place selection Air-conditioner can't be The outdoor unit should not The unit should be installed at installed in the place with be installed at the place the strong enough place. Or it will flammable gas. Or it will where much water can drop cause vibration and noise.

  • Page 9: Product Introduction

    Product introduction Product introduction • Water Cooled VRF is a water-air heat pump air condition equipment which can deliver cooling and heating by taking water as its heat source. Water acts as the heat-extraction source when heating, while heat-absorption source when cooling. Thus there is no risk of frost formation on condenser’s surface.
  • Page 10 Product introduction Operation chart a. Cooling circulation Expansion tank Closed-type cooling tower Circulating Circulating Circulating pump pump pump Water inlet 30°C Water inlet 30°C Water inlet 30°C The outdoor units Water outlet 35°C b. Heating circulation Expansion tank Boiler Circulating Circulating Circulating pump...
  • Page 11 Product introduction Water system Cooling water system guarantees Water Cooled VRF reliable operation. Water volume and water temperature should reach the design index (see the technical parameter) during the designing of VRF water system in order to not cause cooling volume dropping or tripping protection because of inadequate water or lack water or water temperature too high.
  • Page 12 Product introduction ② Cooling towers and pumps a) Select the cooling tower capacity based on the system’s water circulation volume. b) The unit water system must select the closed cooling tower. c) Circulating Pump is generally vertical pipeline pump. It is according to the length of the pipe and drag to select a pump head.
  • Page 13 Product introduction ④ Cooling water pipe system 1. Inlet of water 2. Outlet of water 3. Y-shape filter 4. Flow swich 5. Connection port to draining piping 6. Drain valve 7. Air purge 8. Water piping socket 9. Refrigerant gas side 10.
  • Page 14 Product introduction 2. Insulation should be installed on the water inlet/outlet to prevent condensate water or icing; 3. Water in heat exchanger should all be drained out during long shutdown in the winter to avoid icing; 4. The diameter of water pipe should be the same as the diameter of unit connection (1-1/4 inch) or larger.
  • Page 15 Product introduction System water return pipe Gate valve Pressure gauge Flexible connection Drainage valve Motorized valve Y-shape filter Thermometer System water supply pipe To the drainage tank Flow swich water pan ⑤ Auxiliary Thermal Source: In winter, circulating water temperature is maintained from 15 to 25°C. When in heating mode, the water temperature will drop down gradually, so there should have auxiliary heating source to maintain the water temperature in rating range.
  • Page 16 Product introduction ⑥ Use guide and maintenance of tube-in-tube heat exchanger Cautions in the process of using tube-in-tube: 1. The thread specification for inlet and outlet water pipe is G1-1/4. 2. To avoid foreign body into the system impacting performance and even leading to the corrosion of the double-pipe heat exchanger, must connect water filter unit in the feed line attachment, recommend mesh is 40 mesh per inch.
  • Page 17 Product introduction 7.The configuration of the cleaning solution Recommended acid lotion: oxalic acid 5%, relievers 1.2%, surfactant 0.8%, acid pickling temperature 60°C, in this condition the cleaning effect is better. When use hydrochloric acid to clean the system, in order to avoid corrosion and shorten the life of the heat exchanger, the concentration of hydrochloric acid should be limited to 3% -5%, and added at a concentration of 0.2% -0.3% of the release agent.
  • Page 18 Product introduction ⑦ Refrigerant piping system Adaptor Specifications Pipe diameter:19.05mm Flared inner diameter:22.4mm Total lenght:200mm 1. Gas pipe valve 2.Liquid pipe valve 3. Service valve 4 oil pipe valve 5.Water outlet connection 6.water inletconnection 7.SV11 8.SV1 9. SV10 10. SV9 11.

  • Page 19: Exterior And Installation Dimensions

    Exterior and installation dimensions 1. 8~12HP exterior and installation dimensions Ø13 through-hole Foundation Ø13 through-hole Foundation Over 300 Over 300 Ø10 Expansion bolt Concrete Rubber cushion foundation Solid ground or roof Note: Rubber cushion's cross sectional area should be greater than 3cm or may lead to sheet metal deformation.
  • Page 20 Exterior and installation dimensions A. Sites for one outdoor unit Over Over 300mm 300mm Front Over 1375mm B. Sites for two outdoor units Over 300mm Over 1850mm...
  • Page 21 Exterior and installation dimensions Over Over Over 300mm 300mm 300mm Front Over 2450mm C. Sites for three outdoor units Over Over 300mm 300mm Over 2925mm...
  • Page 22 Exterior and installation dimensions Over Over Over Front Over 300mm 300mm 300mm 300mm Over 3525mm 2. Combination installation dimensions When there are walls around the outdoor units: A. Sites for one-row layout Front Over Over Over 300mm 300mm 300mm...
  • Page 23 Exterior and installation dimensions B. Sites for two-row layout Front Front Over Over Over 300mm 300mm 300mm C. Sites for three-row layout Front Front Over Over Over 300mm 300mm 300mm Front Over Over Over 300mm 300mm 300mm...

  • Page 24: Installation Procedure

    Therefore, 1/2H type with its thickness over min. regulation should be chosen. 3. The manifold pipe and branch pipe must be from AIRWELL. 4. When installing the check valve, refer to the relative operation instruction. 5. The pipe installation should be in the allowable range.
  • Page 25 Installation procedure Antifouling measures First, clean the pipe. Position Installation period Measures More than 1 month Flat the pipe end Outdoor Less than 1 month Flat the pipe end or seal with adhesive tape Indoor Nothing to do with period Pipe specification: Outdoor branch pipe Manifold pipe...
  • Page 26 Installation procedure 2. Pipe “b” diameter (between manifold pipes) Total indoor capacity after the manifold pipe (kW) Gas pipe (mm) Liquid pipe (mm) <16.8kW 15.88 9.52 16.8KW≤X<22.4kW 19.05 9.52 22.22 9.52 22.4KW≤X<33.0kW 12.7 33.0KW≤X<47.0kW 28.58 28.58 15.88 47.0KW≤X<71.0kW 31.8 19.05 71.0KW≤X<101.0kW ≥101.0kW 38.1...
  • Page 27 Installation procedure 4. Pipe “d” diameter (between outdoor branch pipe) Total outdoor capacity before the branch pipe Liquid pipe(a,c) (mm) Gas pipe(b,d) (mm) ~68.0kW Ø15.88 Ø28.58 69.0~90.0kW Ø19.05 Ø31.8 5. Pipe “e” diameter (between outdoor and the outdoor branch pipe) Gas pipe Liquid pipe Oil pipe...
  • Page 28 Installation procedure Pipe length and height difference 1. Pipe length between outdoors Oil pipe h1≥200mm 1nd outdoor branch pipe Outdoor 1 2nd outdoor branch pipe Gas pipe 比例 1.000 Outdoor 3 Outdoor 2 比例 1.000 Gas/liquid pipe: L1+L3 <10m, L2+L3<10m Oil equalization pipe: L5+L6<10m Height difference between outdoors: h<5m...
  • Page 29 Installation procedure Note: a. TAS30 includes TAS20; b. The gas pipe should be installed horizontal or with slope toward the interior units (less than 15degree). c. Oil trap should be installed on gas pipe upright higher more than 200mm when gas pipe is higher than the outdoor units.
  • Page 30 Installation procedure Oil trap (upright projecting pipe, 200mm high) Gas pipe Outdoor 2 Outdoor 3 Outdoor 1 e. Incorrect method of installation 1) No oil trap Gas pipe Outdoor 1 Outdoor 2 Outdoor 3 2) Installation below is not allowed (compressor oil will flow into the lowest outdoor). Gas pipe Outdoor 1 Outdoor 2...
  • Page 31 Installation procedure 2. Allowable piping length and height difference between indoor and outdoor There is no need to install oil traps on liquid pipe. Outdoor 1 Outdoor 2 Outdoor 3 Outdoor 1 Max. length Pipe in above figure L1+L2+ L3+ L4+ L5+ L6+ L7+L8+ Single way total pipe length L9+ L10+ L11+ L12+ L13+ L14+ L15 Single way max.
  • Page 32 Installation procedure Manifold pipe Manifold pipe selection: Total indoor capacity(100W) Model(optional) Less than 335 TAU335HR More than 335, less than 506 TAU506HR More than 506, less than 730 TAU730HR More than 730 TAU1350HR Outdoor unit type The closest outdoor unit to the 1st manifold pipe will be the master unit. Note: 1.
  • Page 33 Installation procedure • When doing the flare connection, please do the following: When connecting the expanding pipes, fasten the pipes with double spanners. The torque refers to the former info. Expanding pipe:A(mm) Projecting length of pipe to be expanded:B(mm) Pipe outer When it is hard pipe Pipe outer diameter...
  • Page 34 Installation procedure B. Leakage test 1. The outdoor unit has been executed the leakage test in the factory. The pipe should be executed leakage test individually and forbidden to test after connecting with check valve. 2. Refer to the below figure to charge the nitrogen into the unit to take a test. Never use the chlorine, oxygen and flammable gas in the leakage test.
  • Page 35 Installation procedure Because the unit is charged with refrigerant R-410A, the below issues should be paid attention: • To prevent the different oil going into the pipe, please use the special tool for R-410A, especially for gauge manifold and charging hose. •...
  • Page 36 Installation procedure L1: Liquid pipe with the total length of 22.22; L2: Liquid pipe with the total length of 19.05; L3: Liquid pipe with the total length of 15.88; L4: Liquid pipe with the total length of 12.7; L5: Liquid pipe with the total length of 9.52; L6: Liquid pipe with the total length of 6.35; Total refrigerant charging volume on site during installation=W2+W3 W: Total refrigerant charging volume on site for maintenance.

  • Page 37: Electric Wiring And The Application

    Electric wiring and the application Communication wiring figure Connection water pump terminals Communication wire with polarity Wired controller Connection flow switch terminals Outdoor units are in parallel through 3 polar wires. The outdoor and all indoor units are in parallel through 2 non-polar wires. Three wiring methods between wired controller and indoor unit: A.1 to multi (group control): one wired controller controls 2~16 indoors, as shown in above figure, indoor 1~indoor 5: indoor 5 is wired control master unit, the others are wired control slave units.
  • Page 38 Electric wiring and the application D. Every outdoor unit must install the flow switch. E. Water pump for water system must connect with starter, the unit offer start signal from pump terminal. If the water system matches with only one set of units, the pump control signal of physical master unit can be connected to the pump starter.
  • Page 39 Electric wiring and the application Power wiring figure Please make sure that when the unit is running, the input voltage is no less than 380V; if it is lower than 380V, the unit may run abnormal. Outdoor 1 Outdoor 2 Outdoor 3 Leakage breaker Leakage breaker...
  • Page 40 Electric wiring and the application Requirements for pulse ammeter 1. Three-phase four-line active pulse ammeter A. The ammeter shall be suitable for metering three-phase AC active electric energy at a rated frequency of 50 Hz. B. The number of pulses outputted by the ammeter for one kWh of electricity shall be constant. C.
  • Page 41 Electric wiring and the application Indoor power source and communication wiring Rated Rated current of residual Communication wire section Item Power Wire current of circuit breaker (A) cable Indoor length overcurrent Ground fault interrupter section Outdoor/indoor Indoor/indoor breaker total (mA) current (A) response time (S) <10...
  • Page 42 Electric wiring and the application Identification: • Master unit: by setting DIP switch, the unit number is 0. It is used to communicate with indoor unit, and it is the organizer of outdoor communications as communication master unit. • Slave unit: by setting DIP switch, the unit number is not 0. •...
  • Page 43 Electric wiring and the application BM2 introduction System functions normally without quiet function Quiet running BM2-1 function Quiet running functions BM2-2 NO definition Default is 0, 1 is forbidden BM2_3 BM2_4 Maximum allowable output capacity Power 100% BM2-3 suppression BM2-4 operation setting Water...
  • Page 44 Electric wiring and the application ③ BM3 introduction BM3-1 BM3-2 BM3-3 Outdoor model Reserved Reserved Water Cooled VRF model BM3-1 (applied to 084C PCB) Outdoor model BM3-2 setting Reserved Single class BM3-3 Reserved Reserved Reserved Reserved 3Ph, 50Hz BM3-4 50Hz/60Hz Single class 60Hz selection...
  • Page 45 Electric wiring and the application ④ BM4 introduction Group class Without drop among indoors Drop selection BM4-1 (valid for among indoors With drop among indoors physical host) BM4-2 NO definition Default is 0, 1 is forbidden Single class BM4-3 NO definition Default is 0, 1 is forbidden Single class BM4-4...
  • Page 46 Electric wiring and the application Monitor tools The following switches are included in the master PCB board of the outdoor unit. Press button: SW2, SW1 are the button switches. Rotary switch: SW9, SW10, SW11, 0~15 can be set. Display section: LD1, LD2, LD3, LD4, digital tube. During startup and commissioning, you can identify failures in the system by selecting the indoor unit to review with switch SW9 and SW10, and selecting the function to review with SW11.
  • Page 47 Electric wiring and the application ② Outdoor parameter SW9 is used to select outdoor unit number, SW10 and SW11 working together to show outdoor parameter. For example, SW9 is set as 0, that shows No.0 outdoor parameter; set as 1, that shows No.1 outdoor parameter...
  • Page 48 Electric wiring and the application SW9 SW10 SW11 Function Digital tube LD1- 4 display 0---470 steps Outdoor LEVa1 valve Press SW2(UP) for 2 secs continuously, open angle displaying 1111 then come into the setting state with blinking display: press SW2(UP)and the Outdoor LEVa2 valve valve is fully opened;...
  • Page 49 Electric wiring and the application SW9 SW10 SW11 Function Digital tube LD1- 4 display Unit Pd pressure Unit:kg, 2 decimals Ps Pressure Tdi discharging temp. Twi water inlet temp. of the water heat exchanger Two2 water outlet temp. of the water heat exchanger Toil temp.
  • Page 50 Electric wiring and the application ③ Master unit information center: display parameters of the whole system SW9 SW10 SW11 Function Operation Refrigerant type 410A: R-410A refrigerant LD1: qty of outdoor Total qty and capacity LD2：displays“-” of outdoor units in the LD3/ LD4：total capacity of outdoor（unit: Hp）...
  • Page 51 Electric wiring and the application SW9 SW10 SW11 Function Operation Press SW2(UP) for 2 secs continuously, display 1111 and start up; digital tube counts down Wrong wiring judging time by second; after time arrives, inspection in cooling display the result: "00.00" shows the result is in conformity with the actual connection;...
  • Page 52 Electric wiring and the application SW9 SW10 SW11 Function Operation When master unit is operating in heating 0: not running mode, the fan speed 1: running setting of Thermo OFF slave units Drop selection 0: no drop between outdoor and 1: with drop indoor LD1: outdoor mode 0- normal, C- cooling only, H-...
  • Page 53 Electric wiring and the application ④ Outdoor valves’ spare parts control SW9 SW10 SW11 Function Operation Manual control 4WV switch Display current state of spare parts, 1: Manual control SV1 switch On, 0: Off Manual control SV3i switch Press SW2(UP) for 2 secs continuously, Manual control SV31switch displaying 1111 then come into the Manual control SV6 switch...
  • Page 54 Electric wiring and the application ⑥ EE data inquiry SW9 SW10 SW11 Function Digital tube LD1-4 display 000H address’s EE data (E2 version) 001H address’s EE data EE’s previous 256 byte data display (system … … … parameter info) 00FH address’s EE data Address calculating method: addr.

  • Page 55: Failure Code

    Failure code Failure code Failure code description: (failure code of the whole system is showed as 8 bits, so totally 256 codes. Indoor failure code should be judged by the table and the unit number) • Outdoor failure code exists in EEPROM, in which 5 failure codes can be kept. •...
  • Page 56 Failure code Indication indication on wired Failure code Failure description Remarks on master controller definition unit (hex) Two1 water heat exchanger outlet 22-1 water temperature AD value is detected below 11(open 1 failure circuit) or above 1012 (short circuit) Resumable The trachea for 60 secs.
  • Page 57 Failure code Indication indication on wired Failure code Failure description Remarks on master controller definition unit (hex) Toil≥120degree(E) at interval of 25msec for twice continuously, Once Oil temp. and over the set value, then stop confirmation, too high protection and alarm; 3 minutes later, resume (Toil) automatically.
  • Page 58 Failure code Indication indication on wired Failure code Failure description Remarks on master controller definition unit (hex) Tdi / Td1≥130°C (E). Stop and alarm if it is Discharging over the set value for 2 secs continuously Once temp. at interval of 25msec. confirmation, 34-0 over heat...
  • Page 59 Failure code Indication indication on wired Failure code Failure description Remarks on master controller definition unit (hex) After compressor starts up, ε>8.0 is Compression detected for 5 mins continuously, stop Once ratio ε and alarm; ε>9.0 is detected for 1min confirmation, 39-1 protection...
  • Page 60 Failure code Indication indication on wired Failure code Failure description Remarks on master controller definition unit (hex) In normal operation, if Td<CT+10°C for continuous 5 minutes, the unit stops and alarms. 2 minutes and 50 seconds later, Discharging Once resume automatically. If it occurs 3 times temp.
  • Page 61 Failure code Indication indication on wired Failure code Failure description Remarks on master controller definition unit (hex) ToilpB-ToilpA≤10°C, unit alarms and Oil equalization stops. No detection in and 10 mins after Once protection the startup, defrosting and oil return confirmation, among control.
  • Page 62 Failure code Indication indication on wired Failure code Failure description Remarks on master controller definition unit (hex) If failed to detect the communication Abnormal signal for 30 secs, error alarms. INV communication control board will promptly resume when with module detecting that.
  • Page 63 Failure code When there is no failure, if the starting condition cannot be met, digital tube on master unit will display stand-by code: Standby state of capacity When capacity is over 135% or lower than 50%, the 555.0 overmatch system is standby. Inlet water temperature When inlet water temperature is less than 5°C or over 555.1...

  • Page 64: Commissioning And The Performance

    Commissioning and the performance 5-minute delay function • If starting up the unit after being powered off, the compressor will run about 5 minutes later against being damaged. Cooling/heating operation • Indoor units in same refrigeration system can be controlled individually, but cannot run in cooling and heating mode simultaneously.
  • Page 65 Commissioning and the performance When power failure When power is failure in running, all the operations will stop. After being electrified again, if with re-start up function, the unit can resume to the state before power off automatically; if without re-start up function, the unit needs to be switched on again. When abnormal occurs in running because of the thunder, the lightning, the interference of car or radio, etc, please cut off the power source, after eliminating the failure, press "ON/ OFF"...

  • Page 66: Move And Scrap The Air Conditioning

    Move and scrap the air conditioning • When moving, to disassemble and re-install the air conditioning, please contact your dealer for technical support. • In the composition material of air conditioning, the content of lead, mercury, hexavalent chromium, polybrominated biphenyls and polybrominated diphenyl ethers are not more than 0.1% (mass fraction) and cadmium is not more than 0.01% (mass fraction).

  • Page 69: Warning

    Consult with the sales agency or manufacturer for details. ATTENTION : Le design et les données techniques sont donnés à titre indicatif et peuvent être modifiés sans préavis. AIRWELL RESIDENTIAL SAS 10,Rue du Fort de Saint Cyr, 78180 Montigny le Bretonneux - France www.airwell.com...

This manual is also suitable for:

Vrf seriesVvwo-220r-01t32Vvwo-280r-01t32Vvwo-335r-01t32

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