Related Manuals for Daikin VRV 5-S
Summary of Contents for Daikin VRV 5-S
- Page 1 Installer and user reference guide VRV 5-S system air conditioner RXYSA8AMY1B RXYSA10AMY1B RXYSA12AMY1B...
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Page 2: Table Of Contents
Symptom: The fan direction does not correspond to the setting ..............10.2.6 Symptom: White mist comes out of a unit (Indoor unit)................10.2.7 Symptom: White mist comes out of a unit (Indoor unit, outdoor unit)............Installer and user reference guide RXYSA8~12AMY1B VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 3 Refrigerant piping requirements ........................18.1.2 Refrigerant piping material..........................18.1.3 Refrigerant piping insulation ......................... 18.1.4 To select the piping size..........................18.1.5 To select refrigerant branch kits ........................RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 4 22.6.2 Correcting after abnormal completion of the test run................. 150 22.7 To perform a SV/indoor unit connection check ......................151 22.8 Operating the unit ................................153 Installer and user reference guide RXYSA8~12AMY1B VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 5 26 Disposal 27 Technical data 27.1 Service space: Outdoor unit............................169 27.2 Piping diagram: Outdoor unit ............................171 27.3 Wiring diagram: Outdoor unit............................172 28 Glossary RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 6: About This Document
Preparation of the installation, reference data,… Detailed step-by-step instructions and background information for basic and advanced usage Format: Digital files on https://www.daikin.eu. Use the search function find your model. The latest revision of the supplied documentation is published on the regional Daikin website and is available via your dealer. - Page 7 Example: " 1–3 Figure title" means "Figure 3 in chapter 1". Indicates a table title or a reference to it. Example: " 1–3 Table title" means "Table 3 in chapter 1". RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 8: General Safety Precautions
WARNING Improper installation or attachment of equipment or accessories could result in electrical shock, short-circuit, leaks, fire or other damage to the equipment. ONLY use accessories, optional equipment and spare parts made or approved by Daikin unless otherwise specified. WARNING Make sure installation, testing and applied materials comply with applicable legislation (on top of the instructions described in the Daikin documentation). -
Page 9: Installation Site
Use a separate recovery system so that the unit's compressor does NOT have to operate. WARNING During tests, NEVER pressurise the product with a pressure higher than the maximum allowable pressure (as indicated on the nameplate of the unit). RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 10 Charge the liquid refrigerant as follows: Then A siphon tube is present Charge with the cylinder upright. (i.e., the cylinder is marked with "Liquid filling siphon attached") RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 11: Electrical
If NOT factory installed, a main switch or other means for disconnection, having a contact separation in all poles providing full disconnection under overvoltage category III condition, MUST be installed in the fixed wiring. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 12 Use an appropriate screwdriver for tightening the terminal screws. A screwdriver with a small head will damage the head and make proper tightening impossible. ▪ Over-tightening the terminal screws may break them. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 13 ON and OFF while the product is operating, attach a reversed phase protection circuit locally. Running the product in reversed phase can break the compressor and other parts. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 14: Specific Installer Safety Instructions
"17.3 Mounting the outdoor unit" [ 84]) WARNING Fixing method of the outdoor unit MUST be in accordance with the instructions from this manual. See "17.3 Mounting the outdoor unit" [ 84]. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 15 Any gas or oil remaining inside the stop valve may blow off the pinched piping. Failure to observe the instructions in procedure below properly may result in property damage or personal injury, which may be serious depending on the circumstances. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 16 172]. WARNING The appliance MUST be installed in accordance with national wiring regulations. CAUTION Do NOT push or place redundant cable length into the unit. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 17 "22 Commissioning" [ 146]) Commissioning (see WARNING Commissioning MUST be in accordance with the instructions from this manual. See "22 Commissioning" [ 146]. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 18: Instructions For Equipment Using R32 Refrigerant
(example: open flames, an operating gas appliance or an operating electric heater). ▪ in a room with dimensions as specified in "16 Special requirements for R32 units" [ 61]. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 19 Specific installer safety instructions WARNING Make sure installation, servicing, maintenance and repair comply with instructions from Daikin and with applicable legislation (for example national gas regulation) and are executed ONLY by authorised persons. WARNING ▪ Take precautions to avoid excessive vibration or pulsation to refrigeration piping.
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Page 20: For The User
For the user RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 21: User Safety Instructions
Do NOT place any objects containing water on the unit. CAUTION ▪ Do NOT place any objects or equipment on top of the unit. ▪ Do NOT sit, climb or stand on the unit. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 22: Instructions For Safe Operation
4.2 Instructions for safe operation WARNING Make sure installation, servicing, maintenance, repair and applied materials follow the instructions from Daikin (including all documents listed in “Documentation set”) and, in addition, comply with applicable legislation and are performed by qualified persons only. In Europe and areas where IEC standards apply, EN/IEC 60335-2-40 is the applicable standard. - Page 23 If the supply cord is damaged, it MUST be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 24 WARNING The appliance shall be stored in a room without continuously operating ignition sources (example: open flames, an operating gas appliance or an operating electric heater). RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 25 To be effective, the unit MUST be electrically powered at all times after installation, except for maintenance. CAUTION NEVER expose little children, plants or animals directly to the airflow. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 26 User safety instructions CAUTION Do NOT touch the heat exchanger fins. These fins are sharp and could result in cutting injuries. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 27: About The System
About the system 5 About the system The VRV 5-S uses R32 refrigerant which is rated as A2L and is mildly flammable. For compliance with the requirements for enhanced tightness refrigerating systems and IEC60335-2-40 the installer must take extra measures. For more information, "3.1 Instructions for equipment using R32... -
Page 28: System Layout
Option PCB (optional) j Cool/heat changeover remote control switch (optional) Refrigerant piping Interconnection and user interface wiring Direct connection of indoor units to the outdoor unit RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 29: User Interface
Detailed information on required actions to achieve certain functions can be found in the dedicated installation and operation manual of the indoor unit. Refer to the operation manual of the installed user interface. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 30: Operation
Dedicated functions exist depending on the type of indoor unit, refer to dedicated installation/operation manual for more information. 7.2 Operation range Use the system in the following temperature and humidity ranges for safe and effective operation. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 31: Operating The System
Above operation range is only valid in case direct expansion indoor units are connected to the VRV 5-S system. Special operation ranges are valid in case of using AHU. They can be found in the installation/operation manual of the dedicated unit. Latest information can be found in the technical engineering data. -
Page 32: To Operate The System (Without Cool/Heat Changeover Remote Control Switch)
Note: In case a cool/heat changeover remote control switch is used, the position of DIP switch 1 (DS1-1) on the main PCB needs to be switched to the ON position. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 33: Using The Dry Program
3 Press the air flow direction adjust button (only for double-flow, multi-flow, corner, ceiling-suspended and wall-mounted). Refer to "7.5 Adjusting the air flow direction" [ 34] for details. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 34: To Use The Dry Program (With Cool/Heat Changeover Remote Control Switch)
Refer to the operation manual of the user interface. 7.5.1 About the air flow flap Air flow flap types: ▪ Double flow + multi-flow units ▪ Corner units RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 35: Setting The Master User Interface
7.6.1 About setting the master user interface a Outdoor unit b SV unit c VRV DX indoor unit d User interface e Direct connection to VRV DX indoor unit RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 36: To Designate The Master User Interface
The unit is individually operated. NOTICE Contact your dealer in case of changing the combination or setting of group control and two user interface control systems. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 37: Energy Saving And Optimum Operation
Detailed information is given for the installer in the installation manual. He can help you to realize the best balance between energy consumption and comfort. In this chapter Available main operation methods ............................Available comfort settings..............................RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 38: Available Main Operation Methods
▪ Powerful ▪ Quick ▪ Mild ▪ RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 39: Maintenance And Service
Formula to calculate the quantity in CO equivalent tonnes: GWP value of the refrigerant × total refrigerant charge [in kg]/1000 Contact your installer for more information. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 40: After-Sales Service
Normal use without frequent starting and stopping of the unit. Depending on the model, we recommend not starting and stopping the machine more than 6 times/hour. ▪ Operation of the unit is assumed to be 10 hours/day and 2,500 hours/year. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 41: Shortened Maintenance And Replacement Cycles
Contact your dealer for details. INFORMATION Damage due to taking apart or cleaning interiors of units by anyone other than our authorised dealers may not be included in the warranty. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 42: Troubleshooting
▪ Check if the user interface display shows on the system stops. home screen. Refer to the installation and operation manual delivered with the indoor unit. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 43: Error Codes: Overview
For your reference, a list with malfunction codes is provided. You can, depending on the level of the malfunction code, reset the code by pushing the ON/OFF button. If not, ask your installer for advice. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 44 Current leakage detector was activated (outdoor) High pressure switch was activated Low pressure malfunction (outdoor) Compressor lock detection (outdoor) Fan motor malfunction (outdoor) Electronic expansion valve malfunction (outdoor) RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 45 Warning because there is an error on another unit (indoor/SV unit) Connection malfunction over indoor units or type mismatch System lock External ventilation input error Centralised address duplication RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 46: Symptoms That Are Not System Malfunctions
This is to prevent cold air blowing directly on occupants of the room. The fan speed will not change even when another indoor unit is in heating operation, if the button is pressed. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 47: Symptom: The Fan Direction Does Not Correspond To The Setting
A hissing sound which is heard at the start or immediately after stopping operation or defrost operation. This is the noise of refrigerant caused by flow stop or flow change. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 48: Symptom: Noise Of Air Conditioners (Outdoor Unit)
10.2.18 Symptom: Hot air can be felt when the indoor unit is stopped Several different indoor units are being run on the same system. When another unit is running, some refrigerant will still flow through the unit. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 49: Relocation
Relocation 11 Relocation Contact your dealer to remove and reinstall the entire unit. Moving units requires technical expertise. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 50: Disposal
Do NOT try to dismantle the system yourself: dismantling of the system, treatment of the refrigerant, oil and other parts MUST comply with applicable legislation. Units MUST be treated at a specialised treatment facility for reuse, recycling and recovery. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 51: Technical Data
Result: When the selection is done, the LOT 21 datasheet can be viewed as a PDF or a HTML webpage. INFORMATION Other documents (e.g. manuals, ...) can also be consulted from the resulting webpage. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 52: For The Installer
For the installer RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 53: About The Box
Note: This product is not designed for repacking. In case of repacking, contact your dealer. 8 HP 1× RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 54: To Handle The Outdoor Unit
Carry the unit slowly as shown: RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 55: To Remove The Accessories From The Outdoor Unit
Cable tie (8 HP: 2×; 10+12 HP: 3×) 14.4 To remove the transportation stay NOTICE If the unit is operated with the transportation stay attached, abnormal vibration or noise may be generated. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 56 Proceed as shown in the figure and procedure below. 1 Remove the bolt (a) and washers. 2 Remove the transportation stay (b) as shown in the figure below. a Bolt b Transportation stay RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 57: About The Units And Options
European market Minor model change indication 15.2 About the outdoor unit This installation manual concerns the VRV 5-S, full inverter driven, heat pump system. These units are intended for outdoor installation and aimed for air to air heat pump applications. -
Page 58: System Layout
Interconnection and user interface wiring Direct connection of indoor units to the outdoor unit 15.4 Combining units and options INFORMATION Certain options may NOT be available in your country. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 59: About Combining Units And Options
15.4.2 Possible combinations of indoor units In general following type of indoor units can be connected to a VRV 5-S heat pump system. The list is non-exhaustive and is depending on both outdoor unit model and indoor unit model combinations. - Page 60 Instructions (group or individual) can be instructed for low noise operation and power consumption limitation operation. The external control adapter has to be installed in the indoor unit. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 61: Special Requirements For R32 Units
Keep the pipework installation to a minimum. 16.2 System layout requirements The VRV 5-S uses R32 refrigerant which is rated as A2L and is mildly flammable. To comply with the requirements of enhanced tightness refrigerating systems of the IEC 60335-2-40, this system is equipped with an alarm in the remote controller and shut-off valves in the SV unit. - Page 62 2 Each indoor unit must be connected to a separate remote controller. In case indoor units are operating under group control, it is possible to only use one remote controller per room. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 63: To Determine The Required Safety Measures
Step 3 – Use the graphs or tables below to determine the required safety measures for the indoor unit. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 64 (e) NOT allowed (=NOT allowed) (f) Alarm + shut-off valve [SV unit] OR Alarm + natural ventilation (=Alarm + shut-off valve [SV unit] OR Alarm + natural ventilation) RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 65 40 m² for No safety measure" (No safety measures). ▪ This means that the following safety measures are required: SV unit Room area Required safety measure A=50 m²≥40 m² No safety measures RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 66 (e) NOT allowed (=NOT allowed) (f) Alarm + shut-off valve [SV unit] OR Alarm + natural ventilation (=Alarm + shut-off valve [SV unit] OR Alarm + natural ventilation) RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 67: Overview: Flowchart
(active by default) by changing the setting in the user interface as shown below: Field settings No safety measure Setting code Function code Description 15/25 R32 leak safety Disabled system setting RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 68: Alarm
15 dB difference. Please refer to the installation manual of the centralised controller for the correct procedure to install the external alarm. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 69 MUST be directly ducted to that room. The room area and remote controller rules MUST be followed for both installed and served room. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 70: Natural Ventilation
Step 1 – Determine total room area, which is the total area of the space that has natural ventilation and the space in which the indoor unit is installed: RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 71 The openings must consist out of two parts to allow air circulation for natural ventilation. ≥ 20 mm ≥ 20 mm nvmin ≥ 50% A nvmin ≤ 100 mm Minimal natural ventilation area nvmin RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 72: Shut-Off Valves
The maximum amount of charge limit and so the maximum capacity class of indoor unit which is allowed to install in the room is determined as below. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 73 90 m after 1 branch <5 — — — — — — — — — — — — — — — — — — — — ≥45 RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 74 Use the table under Step 2 to find the maximum capacity class limit of the indoor unit: 250. The selected indoor unit is 200 → OK. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 75 20 m² 40 m² A~D Branch pipe port A~D a Outdoor unit b SV unit c Indoor branch kit (refnet) Room Room 32/50/200 Indoor unit capacity RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 76: Overview: Flowchart
24-hour monitoring. Start installation Note: The flowchart is an overview. Always refer to the full text mentioned in this manual for clear understanding and detailed explanation. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 77: Combinations Of Safety Measures
Indoor unit with alarm + shut-off valves safety measure Refrigerant piping Interconnection and user interface wiring Direct connection of indoor units to the outdoor unit RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 78: Unit Installation
(example: open flames, an operating gas appliance or an operating electric heater). ▪ in a room with dimensions as specified in "16 Special requirements for R32 units" [ 61]. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 79: Installation Site Requirements Of The Outdoor Unit
Make sure the area is well ventilated. Do NOT block any ventilation openings. ▪ Make sure the unit is level. ▪ Select a place where rain can be avoided as much as possible. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 80 This is to prevent corrosion caused by high levels of salt in the air, which might shorten the life of the unit. Install the outdoor unit away from direct sea winds. Example: Behind the building. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 81 It is recommended to install the outdoor unit with the air inlet facing the wall and NOT directly exposed to the wind. a Baffle plate b Prevailing wind direction c Air outlet RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 82: Additional Installation Site Requirements Of The Outdoor Unit In Cold Climates
Snow might build up and freeze between the heat exchanger and the casing of the unit. This might decrease the operating efficiency. For instructions on how to prevent this (after mounting of the unit), see "17.3.3 To provide drainage" [ 85]. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 83: Opening And Closing The Unit
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 84: To Close The Outdoor Unit
Fix the unit securely by means of foundation bolts in accordance with the foundation drawing. Prepare four sets of anchor bolts, nuts, and washers (field supply) as follows: 4× M12 [mm] RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 85: To Install The Outdoor Unit
If you install the unit on a frame, install a waterproof plate within 150 mm of the bottom side of the unit in order to prevent water from getting into the unit and to avoid drain water dripping (see the following figure). RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 86: To Prevent The Outdoor Unit From Falling Over
3 Insert a rubber sheet between the cables and the outdoor unit to prevent the cables from scratching the paint (field supply). 4 Attach the ends of the cables. 5 Tighten the cables. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 87: Piping Installation
10 m. 18.1.2 Refrigerant piping material ▪ Piping material: phosphoric acid deoxidised seamless copper ▪ Flare connections: Only use annealed material. ▪ Piping temper grade and thickness: RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 88: Refrigerant Piping Insulation
SV units c First branch kit (header) d Indoor branch kit (refnet) e VRV 5-S outdoor unit A~C Piping A: Piping between outdoor unit and (first) refrigerant branch kit Choose from the following table in accordance with the outdoor unit capacity type. - Page 89 SV unit g Piping between first and last refrigerant branch kit (size-up may be required) h Piping between last refrigerant branch kit and indoor unit RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 90: To Select Refrigerant Branch Kits
Concerning refnet headers, choose from the following table in accordance with the total capacity of all the indoor units connected below the refnet header. Indoor unit capacity index Refrigerant branch kit <290 KHRQ22M29H (inch) KHRQM22M29H9 (mm) RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 91: Installation Limitations
SV unit Description Model SV1 SV4 SV6 SV8 Maximum number of connectable indoor units per SV unit (a) Maximum number of connectable indoor units per SV unit branch (b) RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 92: Refrigerant Piping Length And Height Difference
Equivalent length of SV unit [m] indoor unit capacity SV1A SV4A SV6A SV8A <150 0.49 0.49 0.53 0.53 150≤x<290 0.49 0.49 0.58 0.58 290≤x<390 1.71 1.71 1.86 1.86 RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 93 Multiple air handling units (AHU)(EKEXVA+EKEA kits) Mix of air handling units Maximum height difference Indoor to outdoor Indoor to indoor VRV DX 8 HP 50 m/40 m 15 m 10-12 HP RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 94: Connecting The Refrigerant Piping
20+15+10+(1.71)+(6.7+0.49)=53.9 m 18.2 Connecting the refrigerant piping 18.2.1 About connecting the refrigerant piping Before connecting the refrigerant piping Make sure the outdoor and indoor units are mounted. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 95: Precautions When Connecting The Refrigerant Piping
Use caution when passing copper tubes through walls. Unit Installation period Protection method Outdoor unit >1 month Pinch the pipe <1 month Pinch or tape the pipe Indoor unit Regardless of the period RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 96: Pipe Bending Guidelines
2 Insert a hexagon wrench into the stop valve. 3 FULLY turn the stop valve counterclockwise and tighten until the correct tightening torque value is achieved (see "Tightening torques" [ 97]). RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 97 Tightening torques Stop valve size Tightening torque [N•m] [mm] Valve body Hexagonal wrench Service port Ø9.5 4 mm 10.7~14.7 Ø12.7 8~10 Ø15.9 14~16 6 mm Ø19.1 19~21 8 mm Ø25.4 RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 98: To Remove The Pinched Pipes
Use an appropriate tool (e.g. a pipe cutter). WARNING NEVER remove the pinched piping by brazing. Any gas or oil remaining inside the stop valve may blow off the pinched piping. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 99: To Braze The Pipe End
▪ Remove the service cover. See "17.2.2 To open the outdoor unit" [ 83]. ▪ Remove the piping intake plate (a) with screw (b). 2 Choose a piping route (a, b or c). RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 100 ▪ Connect the liquid pipe (a) to the liquid stop valve. (brazing) ▪ Connect the gas pipe (b) to the gas stop valve. (brazing) 8 HP 10-12 HP RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 101 Especially for the bottom and side connection, be sure to protect the piping with suitable insulation, to prevent it from coming into contact with the casing. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 102: To Connect The Refrigerant Branching Kit
This means that the valves will close. NOTICE Leak test and vacuum drying of field piping, SV units and indoor units is impossible when field expansion valves are closed. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 103: Checking Refrigerant Piping: General Guidelines
Use a 2-stage vacuum pump with a non-return valve or a solenoid valve that can evacuate to a gauge pressure of – 1 00.7 kPa (− 1 .007 bar). RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 104: Checking Refrigerant Piping: Setup
2 Once reached, turn off the vacuum pump and check that the pressure does not rise for at least 1 minute. 3 Should the pressure rise, the system may either contain moisture (see vacuum drying below) or have leaks. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 105: To Perform Vacuum Drying
NOT increase. This might be caused by e.g. the closed state of the expansion valve in the outdoor unit circuit, but does NOT present any problem for correct operation of the unit. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 106: To Insulate The Refrigerant Piping
6 If the outdoor unit is installed above the indoor unit, cover the stop valves with sealing material to prevent condensed water on the stop valves from moving to the indoor unit. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 107: To Check For Leaks After Charging Refrigerant
After charging refrigerant in the system an additional leak test must be performed. Refer to "19.8 To check refrigerant piping joints for leaks after charging refrigerant" [ 115]. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 108: Charging Refrigerant
"25.3 Solving problems based on error codes" [ 159]. NOTICE Make sure all connected indoor units are recognised (see setting [1‑10] in "21.1.6 Mode 1: monitoring settings" [ 133]). RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 109: About Charging Refrigerant
"3 Specific installer safety instructions" [ 14] to acknowledge all related safety instructions. This product contains fluorinated greenhouse gases. Do NOT vent gases into the atmosphere. Refrigerant type: R32 RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 110: To Determine The Additional Refrigerant Amount
When using more than one SV unit, add the sum of the individual SV unit charge factors. ▪ Parameter A: Individual SV unit charge factors Model Parameter A SV1A 0.4 kg RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 111 CR per type = Allowable capacity connection ratio per indoor unit type Additional restrictions might apply for connection ratio lower than 75% (65~110%). Please refer to the EKEA+EKEXVA manual. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 112: To Charge Refrigerant
Too much refrigerant is charged Recover refrigerant. Disconnect the manifold from the liquid line. You do not have to perform the "Charging refrigerant (in manual additional refrigerant charge mode)" instructions. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 113 The manual refrigerant charge operation will automatically stop within 30 minutes. If charging is not completed after 30 minutes, perform the additional refrigerant charging operation again. 10 Open valve A. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 114: Error Codes When Charging Refrigerant
Use the GWP value mentioned on the refrigerant charge label. 2 Fix the label on the inside of the outdoor unit. There is a dedicated place for it on the wiring diagram label. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 115: To Check Refrigerant Piping Joints For Leaks After Charging Refrigerant
1 Recover the refrigerant, repair the joint, and repeat the test. 2 Perform the leak tests see "18.3.4 To perform a leak test" [ 104]. 3 Charge refrigerant. 4 Check for refrigerant leaks after charging (see above). RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 116: Electrical Installation
Make electrical connections to the fixed wiring. ▪ All components procured on-site and all electrical construction MUST comply with the applicable legislation. WARNING ALWAYS use multicore cable for power supply cables. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 117 NOTICE NEVER remove a thermistor, sensor, etc., when connecting power wiring and transmission wiring. (If operated without thermistor, sensor, etc., the compressor may break down.) RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 118: About The Electrical Wiring
SV unit AND between outdoor unit and indoor units that are directly connected to the outdoor unit. Wiring between SV unit and indoor units does not require shielded cables. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 119: Guidelines For Making Knockout Holes
Cool/heat selector 20.1.3 Guidelines for making knockout holes Punch out the knockout by tapping on the attachment points with a flat head screwdriver and a hammer. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 120: Guidelines When Connecting The Electrical Wiring
2 Install a round crimp-style terminal on the end of the wire. Place the round crimp-style terminal on the wire up to the covered part and fasten the terminal with the appropriate tool. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 121 Coupling washer f Sheet metal Tightening torques Wiring Screw size Tightening torque Transmission wiring M3.5 0.8~0.97 N•m Power supply wiring 8 HP: M5 2.2~2.7 N•m 10+12 HP: M8 5.5~7.3 N•m RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 122: About Electrical Compliance
ONLY to a supply with a short-circuit power S greater than or equal to the minimum S value. Model Minimum S value RXYSA8 2684 kVA RXYSA10 3101 kVA RXYSA12 3383 kVA RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 123: Specifications Of Standard Wiring Components
Please use the table above to specify the requirements for the power supply wiring. NOTICE When using residual current operated circuit breakers, be sure to use a high-speed type 300 mA rated residual operating current. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 124: To Connect The Electrical Wiring To The Outdoor Unit
10+12 HP: the shielding is earthed (only at outdoor unit side of the cable) via a metal P-clamp. Strip the insulation up to the shielding mesh, to provide full contact of the earth with the shielding. See illustration below: RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 125 Do NOT strip the outer cable jacket lower than the fixation point on the stop valve attachment plate. 6 For RXYSA8: Choose one of the two possibilities to route the cables through the frame: RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 126: To Connect The External Outputs
220~240 V Maximum current 0.5 A Wire size Only use harmonised wiring providing double insulation and suitable for the applicable voltage. 2-core cable Minimum cable section of 0.75 mm² RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 127: To Connect The Cool/Heat Selector Switch Option
1 Connect the cool/heat selector switch to terminal X1M of the cool/heat selector PCB. KRC19-26A X1M Terminal on the PCB KRC19-26A Cool/heat selector switch 2 Route the wires in the switchbox as shown: RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 128: To Check The Insulation Resistance Of The Compressor
2 Turn ON the power and leave it on for 6 hours. Result: The compressor will heat up and evaporate any refrigerant in the compressor. 3 Measure the insulation resistance again. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 129: Configuration
21.1 Making field settings 21.1.1 About making field settings To continue the configuration of the VRV 5-S heat pump system, it is required to give some input to the PCB of the unit. This chapter will describe how manual input is possible by operating the push buttons on the PCB and reading the feedback from the 7‑segment displays. -
Page 130: Field Setting Components
BS1 MODE: for changing the set mode BS2 SET: for field setting BS3 RETURN: for field setting DS1, DS2 DIP switches a 7-segment displays b Push buttons RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 131 If you get confused in the middle of the process, push BS1 to return to the default situation (no indication on 7‑segment displays: blank, see "21.1.3 To access mode 1 2" [ 131]. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 132: To Use Mode 1
Push BS2 to select the required setting. ▪ Push BS3 one time to access the selected setting's value. To quit and return to the initial Push BS1. status RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 133: Mode 1: Monitoring Settings
Low noise operation reduces the sound generated by the unit compared to nominal operating conditions. [1‑1] Description Unit is currently not operating under low noise restrictions. Unit is currently operating under low noise restrictions. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 134 The 3rd last malfunction code When the latest malfunction codes were reset by accident on an indoor unit user interface, they can be checked again through this monitoring settings. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 135: Mode 2: Field Settings
For more information and advice about the impact of these settings, see "21.2 Energy saving and optimum operation" [ 140]. [2‑12] Enable the low noise function and/or power consumption limitation via external control adaptor (DTA104A61/62). RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 136 Description 0 (default) Deactivated. Activated. To stop the refrigerant recovery/vacuuming mode, push BS3. If BS3 is not pushed, the system will remain in refrigerant recovery/vacuuming mode. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 137 24h00 [2‑27] Low noise operation stop time. This setting is used in conjunction with setting [2‑22]. [2‑27] Stop time automatic low noise operation (approximately) 6h00 7h00 RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 138 The level is according to the table. [2‑32] Restriction reference 0 (default) Function not active. Follows [2‑30] setting. Follows [2‑31] setting. [2‑35] Height difference setting. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 139 For more information and advice about the impact of these settings, see "21.2 Energy saving and optimum operation" [ 140]. [2‑82] Heating comfort setting. This setting is used in conjunction with setting [2‑9]. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 140: Indoor Unit Field Setting
21.2.1 Available main operation methods Basic The refrigerant temperature is fixed independent from the situation. To activate this in… Change… Cooling operation [2‑8]=2 Heating operation [2‑9]=6 RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 141 Heating operation [2‑9] to the appropriate value, matching the requirements of the pre-designed system containing a high sensible solution. [2‑8] target (°C) [2‑9] target (°C) RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 142: Available Comfort Settings
Note: The start up condition is different from the powerful and quick comfort setting. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 143: Example: Automatic Mode During Cooling
C Virtual target value (initial evaporation temperature value automatic mode) D Required evaporation temperature value E Load factor F Outside air temperature Evaporating temperature Quick Powerful Mild RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 144: Example: Automatic Mode During Heating
B Load curve C Virtual target value (initial condensation temperature value automatic mode) D Design temperature E Load factor F Outside air temperature Condensing temperature Quick Powerful Mild RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 145 Configuration Room temperature evolution: A Indoor unit set temperature B Operation start C Operating time D Mild E Quick F Powerful RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 146: Commissioning
NOTICE General commissioning checklist. Next to the commissioning instructions in this chapter, a general commissioning checklist is also available on the Daikin Business Portal (authentication required). The general commissioning checklist is complementary to the instructions in this chapter and can be used as a guideline and reporting template during commissioning and hand-over to the user. -
Page 147: Checklist Before Commissioning
Earth wiring Be sure that the earth wires have been connected properly and that the earth terminals are tightened. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 148: Checklist During Commissioning
EN60335‑2‑40 and keep record of the contents of the field setting(s). 22.4 Checklist during commissioning To perform a SV unit test run. See the SV unit installation manual for more information. To perform a test run. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 149: About The Sv Unit Test Run
22.6.1 To perform a test run 1 Close all front panels to prevent misjudgement. 2 Make sure all field settings you want are set; see "21.1 Making field settings" [ 129]. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 150: Correcting After Abnormal Completion Of The Test Run
Carry out the test operation again and confirm that the abnormality is properly corrected. INFORMATION Refer to the installation manual of the indoor unit for detailed malfunction codes related to indoor units. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 151: To Perform A Sv/Indoor Unit Connection Check
Outdoor unit is out of temperature range 0~43°C for SV connection check. Too low pressure was noticed during SV connection check. Restart SV/indoor unit connection check. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 152 In case of miswiring between two different SV units, it is not possible to detect a misconnection during the check. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 153: Operating The Unit
For operating the indoor unit, the user interface of the indoor unit should be switched ON. Refer to the indoor unit operation manual for more details. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 154: Hand-Over To The User
Explain the user how to properly operate the system and what to do in case of problems. ▪ Show the user what to do for the maintenance of the unit. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 155: Maintenance And Service
24.1.1 To prevent electrical hazards When performing service to inverter equipment: 1 Do NOT perform electrical work for 10 minutes after turning off the power supply. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 156: Checklist For Yearly Maintenance Of The Outdoor Unit
When vacuuming/recovery mode is used, check very carefully what should be vacuumed/recovered before starting. See installation manual of the indoor unit for more information about vacuuming and recovery. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 157: To Use Vacuum Mode
The system power supply must be turned off for maintenance. 24.4 SV unit maintenance and service label WARNING Never power off the unit for maintenance and service before the shut-off valves are closed. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 158 Wait for two minutes to allow the system to close the valves e Turn off the system power f Perform maintenance and servicing on the SV unit RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 159: Troubleshooting
ON and OFF by the utility. 25.3 Solving problems based on error codes In case of a displayed malfunction code, perform correcting actions as explained in the malfunction code table. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 160: Error Codes: Overview
Safety system error (leak detection) An error related to the safety system occurred. Refer to the service manual for more information. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 161 Earth leakage detector activated Restart the unit. If the problem reoccurs, contact your dealer. Earth leakage detector malfunction Check connection on PCB or actuator. (open circuit) - A1P (X101A) RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 162 Check refrigerant amount+recharge ▪ Stop valve closed unit. ▪ Refrigerant shortage Ambient temperature sensor Check connection on PCB or actuator. malfunction (R1T) – main PCB (X18A) RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 163 Check connection. FAN1 transmission trouble - main PCB (X20A, X28A, X40A) Transmission outdoor unit - inverter: Check connection. FAN2 transmission trouble - main PCB (X20A, X28A, X40A) RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 164 '1'. SV unit refrigerant type abnormality Check SV unit refrigerant type SV unit DIP switch abnormality Check the DIP switches of the SV unit. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 165: Refrigerant Leak Detection System
Remote controller in supervisor mode (mandatory in some situations) h Centralised controller (optional) Note: During start-up of the system, the mode of the remote control can be verified from the screen. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 166 Error code 'A0–11' and audible alarm and red warning signal is generated from this supervisor remote controller. The unit address is displayed on this remote controller. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 167 (e.g. organic solvents, hair spray, paint) in high concentrations, in the close proximity of the indoor unit because this may cause misdetection by the R32 refrigerant leakage sensor. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 168: Disposal
Do NOT try to dismantle the system yourself: dismantling of the system, treatment of the refrigerant, oil and other parts MUST comply with applicable legislation. Units MUST be treated at a specialised treatment facility for reuse, recycling and recovery. RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 169: Technical Data
A subset of the latest technical data is available on the regional Daikin website (publicly accessible). ▪ The full set of the latest technical data is available on the Daikin Business Portal (authentication required). 27.1 Service space: Outdoor unit When mounting units side by side, the piping route must be to the front or downwards. - Page 170 Note: For better serviceability, use a side by side distance ≥250 mm (instead of ≥100 mm as shown on the figures above). RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 171: Piping Diagram: Outdoor Unit
R21T INV M1C Piping diagram: 10+12 HP S1NPL S1NPH S1PH R21T INV M1C Legend: a Stop valve (gas) b Stop valve (liquid) c Filter (6×) d Accumulator RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... -
Page 172: Wiring Diagram: Outdoor Unit
The capacity of the contact is 220~240 VAC – 0.5 A. (Rush current needs 3 A or less) Use dry contact for micro-current (1 mA or less 12VDC). Symbols: Main terminal Earth wiring Wire number 15 Field wire Field cable RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02... - Page 173 Reactor Motor (compressor) M1F, M2F Motor (upper and lower fan) Q1DI Earth leakage circuit breaker (field supply) Thermistor (air) Thermistor (suction accumulator) Thermistor (heat exchanger liquid) RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
- Page 174 Electronic expansion valve (liquid injection) Solenoid valve (4‑way valve) Solenoid valve (accumulator oil return) Error operation output (SVEO)(field supply) Leak sensor output (SVS)(field supply) Noise filter (ferrite core) RXYSA8~12AMY1B Installer and user reference guide VRV 5-S system air conditioner 4P752782-1A – 2024.02...
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Page 175: Glossary
Optional equipment Equipment made or approved by Daikin that can be combined with the product according to the instructions in the accompanying documentation. Field supply Equipment NOT made by Daikin that can be combined with the product according to the instructions in the accompanying documentation. - Page 176 4P752782-1A 2024.02...