Daikin VRV IV-S RXYSQ4T8VB Series Installation And Operation Manual
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- Installer and user reference manual (136 pages) ,
- Installation and operation manual (36 pages) ,
- Installer and user manual (56 pages)
Table of Contents
Troubleshooting
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Summary of Contents for Daikin VRV IV-S RXYSQ4T8VB Series
- Page 1 Installation and operation manual VRV IV-S system air conditioner RXYSQ4T8VB(*) RXYSQ5T8VB(*) RXYSQ6T8VB(*) RXYSQ4T8YB(*) Installation and operation manual RXYSQ5T8YB(*) English VRV IV-S system air conditioner RXYSQ6T8YB(*)
- 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 ≥500 B, D, E <H ≤½H ≥250...
- Page 3 3P397286-4E...
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Page 4: Table Of Contents
Table of contents 8.2.13 Symptom: The units can give off odours...... 14 Table of contents 8.2.14 Symptom: The outdoor unit fan does not spin ..... 14 8.2.15 Symptom: The display shows "88"....... 14 8.2.16 Symptom: The compressor in the outdoor unit does 1 About the documentation not stop after a short heating operation ....... - Page 5 To access mode 1 or 2 ..........29 Daikin website (publicly accessible). 16.1.5 To use mode 1 ............29 ▪ The full set of latest technical data is available on the Daikin 16.1.6 To use mode 2 ............29 Business Portal (authentication required).
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Page 6: For The User
3 User safety instructions WARNING WARNING During tests, NEVER pressurize the product with a ▪ All wiring MUST be performed by an authorised pressure higher than the maximum allowable pressure (as electrician and MUST comply with the applicable indicated on the nameplate of the unit). legislation. -
Page 7: General
3 User safety instructions ▪ Batteries are marked with the following symbol: General WARNING If you are NOT sure how to operate the This means that the batteries may NOT be mixed with unsorted unit, contact your installer. household waste. If a chemical symbol is printed beneath the symbol, this chemical symbol means that the battery contains a WARNING heavy metal above a certain concentration. -
Page 8: About The System
4 About the system WARNING WARNING Never touch the air outlet or the Stop operation and shut off the horizontal blades while the swing flap power if anything unusual occurs is in operation. Fingers may become (burning smells etc.). caught or the unit may break down. Leaving the unit running under such circumstances may cause breakage, CAUTION... -
Page 9: System Layout
5 User interface System layout Operating the system 6.2.1 About operating the system ▪ Operation procedure varies according to the combination of outdoor unit and user interface. ▪ To protect the unit, turn on the main power switch 6 hours before operation. -
Page 10: To Operate The System (With Cool/Heat Changeover Remote Control Switch)
6 Operation 6.2.5 To operate the system (WITH cool/heat 6.3.2 To use the dry program (WITHOUT cool/ changeover remote control switch) heat changeover remote control switch) Overview of the changeover remote control switch To start FAN ONLY/AIR CONDITIONING 1 Press the operation mode selector button on the user interface SELECTOR SWITCH several times and select (program dry operation). -
Page 11: Setting The Master User Interface
7 Maintenance and service The displays of slave user interfaces show (change-over Corner units under centralised control) and slave user interfaces automatically follow the operation mode directed by the master user interface. Ceiling suspended units Only the master user interface can select heating or cooling mode. Wall-mounted units 6.5.2 To designate the master user interface... -
Page 12: About The Refrigerant
8 Troubleshooting NOTICE WARNING Do NOT wipe the controller operation panel with benzine, ▪ Do NOT modify, disassemble, remove, reinstall or thinner, chemical dust cloth, etc. The panel may get repair the unit yourself as incorrect dismantling or discoloured or the coating peeled off. If it is heavily dirty, installation may cause an electric shock or fire. - Page 13 8 Troubleshooting Malfunction Measure Main code Contents The system operates ▪ Check if air inlet or outlet of outdoor or Discharge temperature malfunction (outdoor) but cooling or heating indoor unit is not blocked by obstacles. Abnormal suction temperature (outdoor) is insufficient. Remove any obstacles and make sure Refrigerant overcharge detection the air can flow freely.
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Page 14: Symptom: Cool/Heat Cannot Be Changed Over
8 Troubleshooting the compressor motor, the air conditioner starts 5 minutes after it 8.2.8 Symptom: The user interface reads "U4" is turned ON again in case it was turned OFF just before. The or "U5" and stops, but then restarts after a same starting delay occurs after the operation mode selector few minutes button was used. -
Page 15: Symptom: The Compressor In The Outdoor Unit Does Not Stop After A Short Heating Operation
About the units and options 11.1 About 12.1 About the outdoor unit is part of Daikin's wider commitment to reduce our This installation manual concerns the VRV, full inverter driven, heat environmental footprint. With we want to create a circular pump system. -
Page 16: 13 Unit Installation
If the unit is selected to operate at ambient temperatures 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 contact your dealer for further advice. -
Page 17: Precautions When Mounting The Outdoor Unit
13 Unit installation 13.3.2 Precautions when mounting the outdoor 13.3.4 To install the outdoor unit unit INFORMATION Also read the precautions and requirements in the following chapters: ▪ General safety precautions ▪ Preparation 4× M12 13.3.3 To provide the installation structure Prepare 4 sets of anchor bolts, nuts and washers (field supply) as follows: 13.3.5... -
Page 18: 14 Piping Installation
14 Piping installation INFORMATION If you install RA DX indoor units, you have to configure field setting [2‑38] (= type of installed indoor units). See settings" [ 4 30]. "Mode 2: Field VRV DX RA DX Piping installation 14.1 Preparing refrigerant piping Outdoor unit 14.1.1 Refrigerant piping requirements... -
Page 19: To Select Refrigerant Branch Kits
14 Piping installation Refnet headers B: Piping between refrigerant branch kits Concerning refnet headers, choose from the following table in Choose from the following table in accordance with the indoor unit accordance with the total capacity of all the indoor units connected total capacity type, connected downstream. -
Page 20: Pipe Bending Guidelines
14 Piping installation Piping union 14.2.6 To braze the pipe end Flare nut Piping size Tightening Flare Flare shape NOTICE (mm) torque (N•m) dimensions (A) (mm) Precautions when connecting field piping. Add brazing (mm) material as shown in the figure. 90°... -
Page 21: To Connect The Refrigerant Piping To The Outdoor Unit
14 Piping installation To handle the stop valve cover INFORMATION ▪ The stop valve cover is sealed where indicated by the arrow. Do NOT damage it. ▪ After handling the stop valve, tighten the stop valve cover securely, and check for refrigerant leaks. For the tightening torque, refer to the table below. -
Page 22: To Connect The Refrigerant Branching Kit
14 Piping installation Possibility 3: To the side Possibility 4: Downwards d e1 e f Horizontal surface Refnet joint mounted vertically Refnet joint mounted horizontally 14.3 Checking the refrigerant piping 14.3.1 About checking the refrigerant piping Refrigerant piping works are Finish piping work. -
Page 23: Checking Refrigerant Piping: General Guidelines
14 Piping installation Leak test and vacuum drying NOTICE Checking the refrigerant piping involves: The connections to the indoor units and all indoor units should also be leak and vacuum tested. Keep any possible ▪ Checking for any leakages in the refrigerant piping. (field supplied) field piping valves open as well. -
Page 24: To Insulate The Refrigerant Piping
14 Piping installation 14.3.6 To insulate the refrigerant piping NOTICE Make sure all connected indoor units are recognised After finishing the leak test and vacuum drying, the piping must be (setting [1‑5]). insulated. Take into account the following points: ▪ Make sure to insulate the connection piping and refrigerant branch NOTICE kits entirely. -
Page 25: Error Codes When Charging Refrigerant
14 Piping installation Refrigerant R410A tank (siphon system) 7 Take all the precautions mentioned in "16 Configuration" [ 4 28] Vacuum pump and "17 Commissioning" [ 4 33] into account. Liquid line stop valve Gas line stop valve 8 Turn on the power of the indoor units and outdoor unit. Valve A 9 Activate setting [2‑20] to start the manual additional refrigerant Valve B... -
Page 26: 15 Electrical Installation
15 Electrical installation Additional refrigerant amount charged If the total transmission wiring exceeds these limits, Total refrigerant charge communication errors might occur. Quantity of fluorinated greenhouse gases of the total refrigerant charge expressed as tonnes CO equivalent. GWP = Global warming potential 15.3 Field wiring: Overview NOTICE... -
Page 27: To Finish The Transmission Wiring
15 Electrical installation NOTICE Routing through the frame You must use shielded wire and connect the earth to the transmission terminal (X2M). F1 F2 F1 F2 A B C F1 F2 F1 F2 TO IND TO OUTD TO IN/D TO OUT/D C/H SELECTOR UNIT UNIT... -
Page 28: To Check The Insulation Resistance Of The Compressor
16 Configuration Finishing tape Mode Description Mode 2 Mode 2 is used to change the field settings of 15.6 To check the insulation resistance the system. Consulting the current field setting (field settings) value and changing the current field setting of the compressor value is possible. -
Page 29: To Access Mode 1 Or 2
16 Configuration TEST: For test operation RESET: For resetting the address when the wiring is changed or when an additional indoor unit is installed 7‑LEDs display The display gives feedback about the field settings, which are defined as [Mode-Setting]=Value. Shows the mode Default situation (H1P OFF) H2P~H7P Shows the settings and values, represented in binary code... -
Page 30: Mode 1 (And Default Situation): Monitoring Settings
16 Configuration Action Button/display Value / Description BS1 [5 s] Select mode 2. Shows the status of power consumption limitation operation. Unit is currently not operating under power BS2 [X×] Select setting 8. consumption limitations. ("X×" depends on the setting that you want to select.) (= binary 8) Unit is currently operating under power consumption... - Page 31 16 Configuration Setting Value Description (= binary) [2‑8] 6°C Auto target temperature during cooling operation. (default) 8°C 9°C 10°C 11°C [2‑9] Auto target temperature during heating operation. (default) 46°C 43°C [2‑12] Deactivated. Enable the low noise function and/or power consumption limitation (default) via external control adaptor (DTA104A61/62).
- Page 32 16 Configuration Setting Value Description (= binary) [2‑26] 20h00 22h00 Low noise operation start time. (default) This setting is used in conjunction with setting [2‑22]. 24h00 [2‑27] 6h00 7h00 Low noise operation stop time. 8h00 This setting is used in conjunction with setting [2‑22]. (default) [2‑30] Power consumption limitation level (step 1) via the external control...
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Page 33: To Connect The Pc Configurator To The Outdoor Unit
17 Commissioning 16.1.9 To connect the PC configurator to the Field wiring outdoor unit Be sure that the field wiring has been carried out according to the instructions described in the chapter Connecting the electrical wiring, according to the wiring diagrams and according to the applicable legislation. -
Page 34: Checklist During Commissioning
18 Hand-over to the user 17.3 Checklist during commissioning INFORMATION During the test operation, it is not possible to stop the unit To perform a test run. operation from a user interface. To abort the operation, press BS3. The unit will stop after ±30 seconds. 4 Check the test operation results on the outdoor unit 7‑LEDs 17.3.1 About the test run... -
Page 35: Error Codes: Overview
19 Troubleshooting INFORMATION INFORMATION If a malfunction occurs, the error code is displayed on the If a malfunction occurs, the error code is displayed on the user interface of the indoor unit. outdoor unit's 7‑segments display and on the user interface of the indoor unit. -
Page 36: 20 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 Business Portal (authentication required). -
Page 37: Piping Diagram: Outdoor Unit
20 Technical data Stop valve (gas) 20.2 Piping diagram: Outdoor unit Stop valve (liquid) Filter (3×) Subcool heat exchanger Pressure regulating valve Heat exchanger Service port (high pressure) Check valve Compressor accumulator Capillary tube Service port (refrigerant charge) Accumulator Heat sink PCB (only for RXYSQ4~6_V) Compressor M1F-M2F Fan motor... -
Page 38: 21 Disposal
21 Disposal Thermistor (liquid pipe) Cool/heat selector switch (option) FINTH Thermistor (fin) IGBT power module (A2P) S1NPH High pressure sensor V2R, V3R Diode module (A2P) S1NPL Low pressure sensor PCB connector S1PH High pressure switch Terminal strip Air control switch (option) Connector Cool/heat selector switch (option) X37A... - Page 40 4P482275-1 B 0000000% 4P482275-1B 2020.10 Verantwortung für Energie und Umwelt...
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