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Summary of Contents for Daikin RXYSQ4TAY1B
- Page 1 Installation and operation manual VRV IV-S system air conditioner RXYSQ4TAY1B Installation and operation manual RXYSQ5TAY1B English VRV IV-S system air conditioner RXYSQ6TAY1B...
- Page 2 (mm) — ≥100 A, B, C — ≥100 ≥100 ≥100 B, E — ≥100 ≥1000 ≤500 A, B, C, E — ≥150 ≥150 ≥150 ≥1000 ≤500 — ≥500 D, E — ≥1000 ≥1000 ≤500 B, D — ≥100 ≥1000 B, D, E <H ≤½H ≥250...
- Page 3 2PW51591-4C...
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Page 5: Table Of Contents
Table of Contents 6.1.5 To use mode 1 ............. 19 Table of Contents 6.1.6 To use mode 2 ............. 19 6.1.7 Mode 1 (and default situation): Monitoring settings ..20 6.1.8 Mode 2: Field settings..........20 1 About the documentation 7 Commissioning About this document.............. -
Page 6: About The Documentation
Daikin website (publicly accessible). This appliance is intended to be used by expert or trained ▪ The full set of latest technical data is available on the Daikin users in shops, in light industry and on farms, or for extranet (authentication required). -
Page 7: System Layout
If the unit is selected to operate at ambient temperatures Preparing installation site lower than –5°C for 5 days or longer, with relative humidity levels exceeding 95%, we recommend to apply a Daikin range specifically designed for such application and/or to 4.1.1 Installation site requirements of the contact your dealer for further advice. -
Page 8: To Select The Piping Size
4 Preparation A: Piping between outdoor unit and (first) Outer diameter Temper grade Thickness (t) (Ø) refrigerant branch kit Ø 6.4 mm (1/4") Annealed (O) ≥0.80 mm When the equivalent pipe length between outdoor and indoor units is 9.5 mm (3/8") 90 m or more, the size of the main gas pipe must be increased (size- up). -
Page 9: To Select Refrigerant Branch Kits
5 Installation E: Piping between BP unit and RA DX indoor unit Maximum wiring length 300 m (= distance between outdoor Indoor unit capacity Piping outer diameter size (mm) and furthest indoor unit) index Gas pipe Liquid pipe Total wiring length 600 m 15~42 (= distance between outdoor... -
Page 10: To Install The Outdoor Unit
5 Installation INFORMATION NOTICE The recommended height of the upper protruding part of If drain holes of the outdoor unit are covered by a mounting the bolts is 20 mm. base or by floor surface, raise the unit to provide a free space of more than 150 mm under the outdoor unit. -
Page 11: To Remove The Pinched Pipes
5 Installation To fully open the Ø19.1 mm stop valve, turn the hexagonal wrench Tightening torques until a torque between 27 and 33 N•m is achieved. Stop valve Tightening torque N•m (turn clockwise to close) Inadequate torque may cause leakage of refrigerant and breakage of size (mm) the stop valve cap. -
Page 12: To Connect The Refrigerant Piping To The Outdoor Unit
5 Installation 4 Do the following: ▪ Connect the liquid pipe (a) to the liquid stop valve. (brazing) ▪ Connect the gas pipe (b) to the gas stop valve. (brazing) NOTICE When brazing: First braze the liquid side piping, then the gas side piping. -
Page 13: Checking The Refrigerant Piping
5 Installation Leak test and vacuum drying 6 Seal all gaps (example: a) to prevent snow and small animals from entering the system. Checking the refrigerant piping involves: ▪ Checking for any leakages in the refrigerant piping. ▪ Performing vacuum drying to remove all moisture, air or nitrogen in the refrigerant piping. -
Page 14: To Perform A Leak Test
5 Installation ▪ Use heat resistant polyethylene foam which can withstand a NOTICE temperature of 70°C for liquid piping and polyethylene foam which The connections to the indoor units and all indoor units can withstand a temperature of 120°C for gas piping. should also be leak and vacuum tested. -
Page 15: To Determine The Additional Refrigerant Amount
5 Installation 2 Open valves C and B. NOTICE 3 Pre‑charge refrigerant until the determined additional refrigerant Make sure all connected indoor units are recognised amount is reached or pre‑charging is not possible anymore, and (setting [1‑5]). then close valves C and B. NOTICE 4 Do one of the following: Close the front panel before any refrigerant charge... -
Page 16: Error Codes When Charging Refrigerant
5 Installation INFORMATION NOTICE The manual refrigerant charge operation will automatically In Europe, the greenhouse gas emissions of the total stop within 30 minutes. If charging is not completed after refrigerant charge in the system (expressed as tonnes 30 minutes, perform the additional refrigerant charging -equivalent) is used to determine the maintenance operation again. -
Page 17: Guidelines When Connecting The Electrical Wiring
5 Installation 5.7.3 Guidelines when connecting the electrical wiring Tightening torques Wiring Screw size Tightening torque (N•m) (A1P) Power supply wiring 2.2~2.7 (power supply + shielded ground) Transmission wiring M3.5 0.8~0.97 5.7.4 To connect the electrical wiring on the outdoor unit NOTICE ▪... -
Page 18: Finishing The Outdoor Unit Installation
6 Configuration 6.1.2 To access the field setting components Finishing the outdoor unit installation "5.1.1 To open the outdoor unit" on page 9. 6.1.3 Field setting components 5.8.1 To finish the transmission wiring After installing the transmission wires inside the unit, wrap them NOTICE along with the on-site refrigerant pipes using finishing tape, as The DIP switches (DS1 and/or DS2 on A1P) are not used. -
Page 19: To Access Mode 1 Or 2
6 Configuration 6.1.5 To use mode 1 Description H1P H2P H3P H4P H5P H6P H7P In mode 1 (and in default situation) you can read out some Mode 2 information. (H1P ON) Example: 7‑LEDs display – Default situation Setting 8 You can read out the status of low noise operation as follows: (in mode 2) (H2P~H7P = binary 8) -
Page 20: Mode 1 (And Default Situation): Monitoring Settings
6 Configuration Action Button/display Value / Description BS3 [1×] Select value 4 (= 8°C). Shows the status of power consumption limitation operation. a: Display the current value. BS2 [X×] Unit is currently not operating under power b: Change to 4. ("X×" consumption limitations. - Page 21 6 Configuration Setting Value Setting Value Description Description binary) binary) [2‑8] Auto [2‑20] Deactivated. (= binary 3) (= binary 1) target temperature during (default) Manual additional refrigerant (default) cooling operation. charge. 6°C Activated. In order to add the additional 8°C (= binary 2) To stop the manual refrigerant charge amount in...
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Page 22: Commissioning
7 Commissioning Setting Value Setting Value Description Description binary) binary) [2‑25] Level 1 Level [2‑31] 3<Level Level 2 (= binary 1) 2<Level 1 Low noise operation level via Power consumption limitation (default) the external control adaptor. level (step 2) via the external Level 3 (= binary 2) control adaptor... -
Page 23: Precautions When Commissioning
7 Commissioning Precautions when commissioning Stop valves Be sure that the stop valves are open on both liquid and CAUTION gas side. Do not perform the test operation while working on the Damaged equipment indoor units. Check the inside of the unit on damaged components or When performing the test operation, not only the outdoor squeezed pipes. -
Page 24: Correcting After Abnormal Completion Of The Test Run
8 Troubleshooting 2 Turn ON the power to the outdoor unit and the connected 7.3.3 Correcting after abnormal completion of indoor units. the test run NOTICE The test operation is only completed if there is no malfunction code displayed. In case of a displayed malfunction code, perform Be sure to turn on the power 6 hours before operation in correcting actions as explained in the malfunction code table. -
Page 25: Technical Data
Technical data A subset of the latest technical data is available on the regional Daikin website (publicly accessible). The full set of latest technical data is available on the Daikin extranet (authentication required). -
Page 26: Piping Diagram: Outdoor Unit
9 Technical data Single unit ( ) | Single row of units ( See figure 1 on the inside of the front cover. A,B,C,D Obstacles (walls/baffle plates) Obstacle (roof) a,b,c,d,e Minimum service space between the unit and obstacles A, B, C, D and E Maximum distance between the unit and the edge of obstacle E, in the direction of obstacle B Maximum distance between the unit and the edge of obstacle E, in the direction of obstacle D Height of the unit... -
Page 27: Wiring Diagram: Outdoor Unit
9 Technical data S1PH High pressure switch Solenoid valve (4‑way valve) Electronic expansion valve (main) Heating Electronic expansion valve (subcool heat exchanger) Cooling Solenoid valve Wiring diagram: Outdoor unit The wiring diagram is delivered with the unit, located at the inside of F101U Fuse (5 A, DC650 V) (A4P) (A5P) the service cover. -
Page 28: For The User
10 About the system For the user About the system Operation The indoor unit part of VRV IV-S heat pump system can be used for 12.1 Operation range heating/cooling applications. The type of indoor unit which can be used depends on the outdoor units series. Use the system in the following temperature and humidity ranges for NOTICE safe and effective operation. -
Page 29: To Operate The System
12 Operation Defrost operation 12.4.1 About the air flow flap In heating operation, freezing of the outdoor unit's air cooled coil Double flow+multi-flow units increases over time, restricting the energy transfer to the outdoor unit's coil. Heating capability decreases and the system needs to go into defrost operation to be able to deliver enough heat to the indoor Corner units units. -
Page 30: To Designate The Master User Interface (Vrv Dx)
13 Maintenance and service When the system is installed as shown in the figure above, it is NOTICE necessary to designate one of the user interfaces as the master user Do not wipe the controller operation panel with benzine, interface. thinner, chemical dust cloth, etc. -
Page 31: Troubleshooting
14 Troubleshooting WARNING Malfunction Measure The system operates ▪ Check if air inlet or outlet of outdoor or ▪ Do not modify, disassemble, remove, reinstall or repair but cooling or heating indoor unit is not blocked by obstacles. the unit yourself as incorrect dismantling or installation is insufficient. -
Page 32: Symptoms That Are Not System Malfunctions
14 Troubleshooting 14.2.1 Symptom: The system does not operate Main code Contents Electronic expansion valve malfunction (outdoor) ▪ The air conditioner does not start immediately after the ON/OFF Discharge temperature malfunction (outdoor) button on the user interface is pressed. If the operation lamp lights, the system is in normal condition. -
Page 33: Symptom: The User Interface Display Reads "U4" Or "U5" And Stops, But Then Restarts After A Few Minutes
15 Relocation 14.2.7 Symptom: The user interface display 14.2.15 Symptom: The compressor in the outdoor reads "U4" or "U5" and stops, but then unit does not stop after a short heating restarts after a few minutes operation This is because the user interface is intercepting noise from electric This is to prevent refrigerant from remaining in the compressor. - Page 36 4P482256-1 0000000P 4P482256-1 2017.03...
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