Related Manuals for Daikin FXFA20A2VEB
Summary of Contents for Daikin FXFA20A2VEB
- Page 1 Installer and user reference guide VRV system air conditioner FXFA20A2VEB FXFA25A2VEB FXFA32A2VEB FXFA40A2VEB FXFA50A2VEB FXFA63A2VEB FXFA80A2VEB FXFA100A2VEB FXFA125A2VEB...
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Page 2: Table Of Contents
Table of contents Table of contents 1 About the documentation About this document ..............................2 General safety precautions About the documentation .............................. 2.1.1 Meaning of warnings and symbols ........................ For the installer ................................2.2.1 General ................................2.2.2 Installation site ............................... 2.2.3 Refrigerant —... - Page 3 Table of contents 13 Disposal For the installer 14 About the box 14.1 Overview: About the box ..............................47 14.2 Indoor unit ..................................47 14.2.1 To unpack and handle the unit ........................47 14.2.2 To remove the accessories from the indoor unit ..................48 15 About the units and options 15.1 Identification ...................................
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Page 4: About The Documentation
The original documentation is written in English. All other languages are translations. Technical engineering 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 5: General Safety Precautions
General safety precautions 2 General safety precautions 2.1 About the documentation ▪ The original documentation is written in English. All other languages are translations. ▪ The precautions described in this document cover very important topics, follow them carefully. ▪ The installation of the system, and all activities described in the installation manual and in the installer reference guide MUST be performed by an authorised installer. -
Page 6: For The Installer
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. WARNING Make sure installation, testing and applied materials comply with applicable legislation (on top of the instructions described in the Daikin documentation). -
Page 7: Installation Site
General safety precautions WARNING Provide adequate measures to prevent that the unit can be used as a shelter by small animals. Small animals that make contact with electrical parts can cause malfunctions, smoke or fire. CAUTION Do NOT touch the air inlet or aluminium fins of the unit. CAUTION ▪... - Page 8 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 If one or more rooms are connected to the unit using a duct system, make sure: ▪...
- Page 9 General safety precautions NOTICE ▪ Do NOT re-use joints which have been used already. ▪ Joints made in installation between parts of refrigerant system shall be accessible for maintenance purposes. Installation space requirements WARNING If appliances contain R32 refrigerant, the floor area of the room in which the appliances are installed, operated and stored MUST be larger than the minimum floor area defined in table below A (m ).
- Page 10 General safety precautions m (kg) 1.843 7.956 Ceiling-mounted Wall-mounted Floor-standing unit unit unit m (kg) m (kg) m (kg) ≤1.842 — ≤1.842 — ≤1.842 — 1.843 3.64 1.843 4.45 1.843 28.9 4.83 34.0 3.95 4.34 5.31 41.2 5.79 49.0 4.74 5.13 6.39 57.5...
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Page 11: Refrigerant - In Case Of R410A Or R32
General safety precautions (b) Wall-mounted unit (= Wall-mounted unit) (c) Floor-standing unit (= Floor-standing unit) 2.2.3 Refrigerant — in case of R410A or R32 If applicable. See the installation manual or installer reference guide of your application for more information. NOTICE Make sure refrigerant piping installation complies with applicable legislation. -
Page 12: Brine
General safety precautions WARNING Make sure there is no oxygen in the system. Refrigerant may only be charged after performing the leak test and the vacuum drying. Possible consequence: Self-combustion and explosion of the compressor because of oxygen going into the operating compressor. ▪... -
Page 13: Water
General safety precautions WARNING The ambient temperature inside the unit can get much higher than that of the room, e.g. 70°C. In case of a brine leak, hot parts inside the unit can create a hazardous situation. WARNING The use and installation of the application MUST comply with the safety and environmental precautions specified in the applicable legislation. - Page 14 General safety precautions WARNING ▪ ONLY use copper wires. ▪ Make sure the field wiring complies with the applicable legislation. ▪ All field wiring MUST be performed in accordance with the wiring diagram supplied with the product. ▪ NEVER squeeze bundled cables and make sure they do NOT come in contact with the piping and sharp edges.
- Page 15 General safety precautions WARNING ▪ After finishing the electrical work, confirm that each electrical component and terminal inside the electrical components box is connected securely. ▪ Make sure all covers are closed before starting up the unit. NOTICE Only applicable if the power supply is three‑phase, and the compressor has an ON/ OFF starting method.
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Page 16: Specific Installer Safety Instructions
WARNING Make sure installation, servicing, maintenance, repair and applied materials follow the instructions from Daikin 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 17 Specific installer safety instructions WARNING: MILDLY FLAMMABLE MATERIAL The refrigerant inside this unit is mildly flammable. Electrical installation (see "18 Electrical installation" [ 67]) WARNING ▪ If the power supply has a missing or wrong N-phase, equipment might break down. ▪ Establish proper earthing. Do NOT earth the unit to a utility pipe, surge absorber, or telephone earth.
- Page 18 Specific installer safety instructions "19 Commissioning" [ 72]) Commisioning (see WARNING If the panels on the indoor units are not installed yet, make sure to power OFF the system after finishing the test run. To do so, turn OFF operation via the user interface.
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Page 19: For The User
For the user For the user FXFA20~125A2VEB Installer and user reference guide VRV system air conditioner 4P599624-1A – 2020.06... -
Page 20: User Safety Instructions
User safety instructions 4 User safety instructions Always observe the following safety instructions and regulations. 4.1 General WARNING If you are NOT sure how to operate the unit, contact your installer. WARNING This appliance is not intended for use by persons, including children, with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning... -
Page 21: Instructions For Safe Operation
User safety instructions ▪ Units are marked with the following symbol: This means that electrical and electronic products may NOT be mixed with unsorted household waste. Do NOT try to dismantle the system yourself: the dismantling of the system, treatment of the refrigerant, of oil and of other parts must be done by an authorized installer and must comply with applicable legislation. - Page 22 User safety instructions CAUTION ▪ NEVER touch the internal parts of the controller. ▪ Do NOT remove the front panel. Some parts inside are dangerous to touch and appliance problems may happen. For checking and adjusting the internal parts, contact your dealer. WARNING This unit contains electrical and hot parts.
- Page 23 User safety instructions WARNING Do NOT place a flammable spray bottle near the air conditioner and do NOT use sprays near the unit. Doing so may result in a fire. "10 Maintenance and service" [ 34]) Maintenance and service (see CAUTION: Pay attention to the fan! It is dangerous to inspect the unit while the fan is running.
- Page 24 User safety instructions WARNING Do NOT let the indoor unit get wet. Possible consequence: Electric shock or fire. About the refrigerant (see "10.5 About the refrigerant" [ 38]) WARNING: MILDLY FLAMMABLE MATERIAL The refrigerant inside this unit is mildly flammable. WARNING ▪ Do NOT pierce or burn refrigerant cycle parts.
- Page 25 User safety instructions Troubleshooting (see "11 Troubleshooting" [ 41]) WARNING Stop operation and shut off the power if anything unusual occurs (burning smells etc.). Leaving the unit running under such circumstances may cause breakage, electric shock or fire. Contact your dealer. FXFA20~125A2VEB Installer and user reference guide VRV system air conditioner 4P599624-1A –...
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Page 26: About The System
About the system 5 About the system WARNING ▪ Do NOT modify, disassemble, remove, reinstall or repair the unit yourself as incorrect dismantling or installation may cause an electric shock or fire. Contact your dealer. ▪ In case of accidental refrigerant leaks, make sure there are no naked flames. The refrigerant itself is entirely safe, non-toxic and mildly flammable, but it will generate toxic gas when it accidentally leaks into a room where combustible air from fan heaters, gas cookers, etc. -
Page 27: Information Requirements For Fan Coil Units
Heating capacity rated,h Total electric power input elec Sound power level (per speed setting, if applicable) Contact details: DAIKIN INDUSTRIES CZECH REPUBLIC s.r.o. U Nové Hospody 1/1155, 301 00 Plzeň Skvrňany, Czech Republic FXFA20 0.038 FXFA25 0.038 FXFA32 0.038 FXFA40 0.038... -
Page 28: User Interface
User interface 6 User interface CAUTION ▪ NEVER touch the internal parts of the controller. ▪ Do NOT remove the front panel. Some parts inside are dangerous to touch and appliance problems may happen. For checking and adjusting the internal parts, contact your dealer. -
Page 29: Before Operation
Before operation 7 Before operation WARNING This unit contains electrical and hot parts. WARNING Before operating the unit, be sure the installation has been carried out correctly by an installer. CAUTION It is not good for your health to expose your body to the air flow for a long time. CAUTION To avoid oxygen deficiency, ventilate the room sufficiently if equipment with burner is used together with the system. -
Page 30: Operation
Operation 8 Operation 8.1 Operation range INFORMATION For the operation limits see the technical data of the connected outdoor unit. 8.2 About operation modes INFORMATION Depending on the installed system, some operation modes will not be available. ▪ The air flow rate may adjust itself depending on the room temperature or the fan may stop immediately. -
Page 31: Special Heating Operation Modes
Operation 8.2.2 Special heating operation modes Operation Description Defrost To prevent a loss of heating capacity due to frost accumulation in the outdoor unit, the system will automatically switch to defrost operation. During defrost operation, the indoor unit fan will stop operation, and the following icon will appear on the home screen: The system will resume normal... -
Page 32: Active Circulation Airflow
Operation Automatic airflow control In the following operating conditions, the airflow direction of the indoor units is controlled automatically: ▪ When the room temperature is higher than the controller's setpoint for heating operation (including auto operation). ▪ When the indoor units run in heating operation mode, and the Defrost function is active. -
Page 33: Energy Saving And Optimum Operation
Energy saving and optimum operation 9 Energy saving and optimum operation CAUTION NEVER expose little children, plants or animals directly to the airflow. WARNING Do NOT place objects below the indoor and/or outdoor unit that may get wet. Otherwise condensation on the unit or refrigerant pipes, air filter dirt or drain blockage may cause dripping, and objects under the unit may get dirty or damaged. -
Page 34: Maintenance And Service
Maintenance and service 10 Maintenance and service 10.1 Precautions for maintenance and service NOTICE Maintenance MUST be done by an authorized installer or service agent. We recommend performing maintenance at least once a year. However, applicable legislation might require shorter maintenance intervals. CAUTION: Pay attention to the fan! It is dangerous to inspect the unit while the fan is running. -
Page 35: Cleaning The Air Filter, Suction Grille, Air Outlet And Outside Panels
Maintenance and service Following symbols may occur on the indoor unit: Symbol Explanation Measure the voltage at the terminals of main circuit capacitors or electrical components before servicing. 10.2 Cleaning the air filter, suction grille, air outlet and outside panels CAUTION Turn off the unit before cleaning the air filter, suction grille, air outlet and outside panels. -
Page 36: To Clean The Suction Grille
Maintenance and service Standard panel: Design panel: 3 Clean the air filter. Use a vacuum cleaner or wash with water. If the air filter is very dirty, use a soft brush and neutral detergent. 4 Dry the air filter in the shadow. 5 Reattach the air filter and close the suction grille. -
Page 37: To Clean The Air Outlet And Outside Panels
Maintenance and service Design panel: 2 Remove the suction grille. Standard panel: 45° Design panel: 3 Remove the air filter. 4 Clean the suction grille. Wash with a soft bristle brush, and water or neutral detergent. If the suction grille is very dirty, use a typical kitchen cleaner, leave it on for 10 min, then wash it with water. -
Page 38: Maintenance Before A Long Stop Period
Maintenance and service Clean with a soft cloth. If it is difficult to remove stains, use water or neutral detergent. 10.3 Maintenance before a long stop period E.g., at the end of the season. ▪ Let the indoor units run in fan only operation for about half a day in order to dry the interior of the units. -
Page 39: About The Refrigerant Leakage Sensor
Maintenance and service WARNING ▪ Do NOT pierce or burn refrigerant cycle parts. ▪ Do NOT use cleaning materials or means to accelerate the defrosting process other than those recommended by the manufacturer. ▪ Be aware that the refrigerant inside the system is odourless. WARNING The refrigerant inside the unit is mildly flammable, but normally does NOT leak. - Page 40 Maintenance and service 1 User interface displays error "A0-11", emits alarm sound and status indicator is blinking. 2 Contact your dealer immediately. For more information, see the installation manual of the outdoor unit. In case of detection when the unit is turned on 1 User interface displays error "A0-11", emits alarm sound and status indicator is blinking.
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Page 41: Troubleshooting
Troubleshooting 11 Troubleshooting If one of the following malfunctions occur, take the measures shown below and contact your dealer. WARNING Stop operation and shut off the power if anything unusual occurs (burning smells etc.). Leaving the unit running under such circumstances may cause breakage, electric shock or fire. -
Page 42: Symptoms That Are Not System Malfunctions
Troubleshooting Malfunction Measure The system operates but ▪ Check if air inlet or outlet of outdoor or indoor cooling or heating is unit is not blocked by obstacles. Remove any insufficient. obstacles and make sure the air can flow freely. ▪... -
Page 43: Symptom: White Mist Comes Out Of A Unit (Indoor Unit)
Troubleshooting 11.1.4 Symptom: White mist comes out of a unit (Indoor unit) ▪ When humidity is high during cooling operation. If the interior of an indoor unit is extremely contaminated, the temperature distribution inside a room becomes uneven. It is necessary to clean the interior of the indoor unit. Ask your dealer for details on cleaning the unit. -
Page 44: Relocation
Relocation 12 Relocation Contact your dealer for removing and reinstalling the total unit. Moving units requires technical expertise. FXFA20~125A2VEB Installer and user reference guide VRV system air conditioner 4P599624-1A – 2020.06... - Page 45 Disposal 13 Disposal NOTICE 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. FXFA20~125A2VEB Installer and user reference guide VRV system air conditioner...
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Page 46: For The Installer
For the installer For the installer FXFA20~125A2VEB Installer and user reference guide VRV system air conditioner 4P599624-1A – 2020.06... -
Page 47: About The Box
About the box 14 About the box 14.1 Overview: About the box This chapter describes what you have to do after the box with the indoor unit is delivered on-site. It contains information about: ▪ Unpacking and handling the unit ▪... -
Page 48: To Remove The Accessories From The Indoor Unit
About the box 14.2.2 To remove the accessories from the indoor unit 1× 1× 1× 8× 4× 7× 1× 4× 1× 1× 1× 1× Paper pattern for installation (upper part of packing) General safety precautions Indoor unit installation and operation manual Installation guide Washers for hanger brackets Screws (to temporarily attach the paper pattern for installation to the indoor unit) -
Page 49: About The Units And Options
About the units and options 15 About the units and options In this chapter 15.1 Identification................................... 15.1.1 Identification label: Indoor unit ..........................15.2 About the indoor unit................................15.3 System layout..................................15.4 Combining units and options..............................15.4.1 Possible options for the indoor unit ........................15.1 Identification NOTICE When installing or servicing several units at the same time, make sure NOT to switch... -
Page 50: Combining Units And Options
About the units and options Indoor unit Outdoor unit User interface Suction air Discharge air Refrigerant piping + transmission cable Drain pipe Suction grille and air filter 15.4 Combining units and options INFORMATION Certain options might not be available in your country. 15.4.1 Possible options for the indoor unit Make sure you have the following mandatory options: ▪... - Page 51 About the units and options ▪ Optional output PCB (to provide output for external device): The PCB will trigger in case of leak detection, sensor fails or when sensor is disconnected. For exact model name see option list of the indoor unit. For more information about this option, refer to the installation manual of the optional output PCB.
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Page 52: Unit Installation
Unit installation 16 Unit installation In this chapter 16.1 Preparing the installation site ..............................16.1.1 Installation site requirements of the indoor unit ....................16.2 Mounting the indoor unit............................... 16.2.1 Guidelines when installing the indoor unit......................16.2.2 Guidelines when installing the drain piping ......................16.1 Preparing the installation site Do NOT install the unit in places often used as work place. - Page 53 Unit installation NOTICE The equipment described in this manual may cause electronic noise generated from radio-frequency energy. The equipment complies to specifications that are designed to provide reasonable protection against such interference. However, there is no guarantee that interference will not occur in a particular installation. It is therefore recommended to install the equipment and electric wires in such a way that they keep a proper distance from stereo equipment, personal computers, etc.
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Page 54: Mounting The Indoor Unit
Unit installation ≥350 mm: In case of installation with design decoration panel ≥388 mm: In case of installation with self-cleaning decoration panel ≥358 mm: In case of installation with fresh air intake kit Indoor unit Lighting (the figure shows ceiling-mounted lighting, but recessed lighting is also allowed) Air fan Static volume (example: table) ▪... - Page 55 Unit installation NOTICE After installing the decoration panel: ▪ Make sure there is no gap between the unit body and the decoration panel. Possible consequence: Air might leak and cause dew drop. ▪ Make sure no oil remains on the plastic parts of the decoration panel. Possible consequence: Degradation and damage of plastic parts.
- Page 56 Unit installation ▪ Ceiling opening and unit: Make sure the ceiling opening is within the following limits: Minimum: 860 mm to be able to fit the unit. Maximum: 910 mm to ensure enough overlap between the decoration panel and the suspended ceiling. If the ceiling opening is larger, add extra ceiling material.
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Page 57: Guidelines When Installing The Drain Piping
Unit installation Installation guide (accessory) Unit ▪ Level. Make sure the unit is level at all 4 corners using a level or a water-filled vinyl tube. Level Vinyl tube Water level NOTICE Do NOT install the unit tilted. Possible consequence: If the unit is tilted against the direction of the condensate flow (the drain piping side is raised), the float switch might malfunction and cause water to drip. - Page 58 Unit installation ≤300 1000~1500 (mm) Metal clamp (accessory) Drain hose (accessory) Rising drain piping (vinyl pipe of 25 mm nominal diameter and 32 mm outer diameter) (field supply) Hanging bars (field supply) ▪ Combining drain pipes. You can combine drain pipes. Make sure to use drain pipes and T-joints with a correct gauge for the operating capacity of the units.
- Page 59 Unit installation Large sealing pad (accessory) Insulation piece (drain pipe) (accessory) Drain piping (field supply) To check for water leaks The procedure differs depending on whether installation of the system is already completed. When installation of the system is not yet completed, temporarily connect the user interface and power supply to the unit.
- Page 60 Unit installation ▪ Remove the service cover. ▪ Disconnect the power supply. ▪ Disconnect the user interface. ▪ Reattach the service cover. When installation of the system is already completed 1 Start cooling operation (see the reference guide or the service manual of the user interface).
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Page 61: Piping Installation
Piping installation 17 Piping installation In this chapter 17.1 Preparing refrigerant piping ..............................17.1.1 Refrigerant piping requirements ........................... 17.1.2 Refrigerant piping insulation..........................17.2 Connecting the refrigerant piping............................17.2.1 About connecting the refrigerant piping....................... 17.2.2 Precautions when connecting the refrigerant piping.................... 17.2.3 Guidelines when connecting the refrigerant piping.................... -
Page 62: Refrigerant Piping Insulation
Piping installation Outer diameter (Ø) Temper grade Thickness (t) Ø 6.4 mm (1/4") Annealed (O) ≥0.8 mm 9.5 mm (3/8") 12.7 mm (1/2") 15.9 mm (5/8") Depending on the applicable legislation and the maximum working pressure of the unit (see "PS High" on the unit name plate), larger piping thickness might be required. 17.1.2 Refrigerant piping insulation ▪... -
Page 63: Precautions When Connecting The Refrigerant Piping
Piping installation 17.2.2 Precautions when connecting the refrigerant piping INFORMATION Also read the precautions and requirements in the following chapters: ▪ General safety precautions ▪ Preparation DANGER: RISK OF BURNING/SCALDING CAUTION ▪ Do NOT use mineral oil on flared part. ▪... -
Page 64: Pipe Bending Guidelines
Piping installation ▪ Coat the flare inner surface with ether oil or ester oil when connecting a flare nut. Tighten 3 or 4 turns by hand, before tightening firmly. ▪ ALWAYS use 2 wrenches together when loosening a flare nut. ▪... -
Page 65: To Connect The Refrigerant Piping To The Indoor Unit
Piping installation Flare tool for R32 Conventional flare tool (clutch type) Clutch type Wing nut type (Ridgid-type) (Imperial-type) 0~0.5 mm 1.0~1.5 mm 1.5~2.0 mm 5 Check that the flaring is properly made. Flare’s inner surface MUST be flawless. The pipe end MUST be evenly flared in a perfect circle. Make sure the flare nut is fitted. - Page 66 Piping installation NOTICE Make sure to insulate all refrigerant piping. Any exposed piping might cause condensation. FXFA20~125A2VEB Installer and user reference guide VRV system air conditioner 4P599624-1A – 2020.06...
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Page 67: Electrical Installation
Electrical installation 18 Electrical installation In this chapter 18.1 About connecting the electrical wiring ..........................18.1.1 Precautions when connecting the electrical wiring ....................18.1.2 Guidelines when connecting the electrical wiring ....................18.1.3 Specifications of standard wiring components ..................... 18.2 To connect the electrical wiring to the indoor unit ....................... 18.1 About connecting the electrical wiring Typical workflow Connecting the electrical wiring typically consists of the following stages:... -
Page 68: Guidelines When Connecting The Electrical Wiring
Electrical installation WARNING ▪ If the power supply has a missing or wrong N-phase, equipment might break down. ▪ Establish proper earthing. Do NOT earth the unit to a utility pipe, surge absorber, or telephone earth. Incomplete earthing may cause electrical shock. ▪... -
Page 69: Specifications Of Standard Wiring Components
Electrical installation Wire type Installation method Stranded conductor wire with round crimp-style terminal a Terminal b Screw c Flat washer O Allowed X NOT allowed Tightening torques Wiring Screw size Tightening torque (N•m) Power supply cable 1.2~1.4 Transmission cable M3.5 0.79~0.97 (indoor↔outdoor) User interface cable... -
Page 70: To Connect The Electrical Wiring To The Indoor Unit
Electrical installation 18.2 To connect the electrical wiring to the indoor unit NOTICE ▪ Follow the wiring diagram (delivered with the unit, located at the inside of the service cover). ▪ For instructions on how to connect the optional equipment, see the installation manual delivered with the optional equipment. - Page 71 Electrical installation Tie wrap Connection of user interface and transmission cable Complete system example 1 user interface controls 1 indoor unit. Control box IN/D OUT/D Outdoor unit Indoor unit User interface Most downstream indoor unit NOTICE Group control connection is NOT allowed. CAUTION ▪...
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Page 72: Commissioning
Commissioning 19 Commissioning In this chapter 19.1 Overview: Commissioning ..............................19.2 Precautions when commissioning............................19.3 Checklist before commissioning............................. 19.4 To perform a test run ................................19.1 Overview: Commissioning This chapter describes what you have to do and know to commission the system after it is installed. -
Page 73: Checklist Before Commissioning
Commissioning WARNING If the panels on the indoor units are not installed yet, make sure to power OFF the system after finishing the test run. To do so, turn OFF operation via the user interface. Do NOT stop operation by turning OFF the circuit breakers. 19.3 Checklist before commissioning After the installation of the unit, first check the items listed below. -
Page 74: Configuration
Configuration 20 Configuration 20.1 Field setting Make the following field settings so that they correspond with the actual installation setup and with the needs of the user: ▪ Ceiling height ▪ Decoration panel type ▪ Air flow direction range ▪ Air volume when thermostat control is OFF ▪... - Page 75 Configuration If the … decoration panel is used Then — Standard or self-cleaning 13 (23) Design Setting: Airflow direction range This setting must correspond with the needs of the user. If you want set the airflow direction range to… Then —...
- Page 76 Configuration Only use in combination with optional remote sensor or when setting M 10 (20), SW 2, — 3 is used. Setting: Time to clean air filter This setting must correspond with the air contamination in the room. It determines the interval at which "Time to clean filter"...
- Page 77 Configuration If you want to set… Then Example — 0°C 12 (22) cooling 24°C/heating 24°C 1°C cooling 24°C/heating 23°C 2°C cooling 24°C/heating 22°C 3°C cooling 24°C/heating 21°C 4°C cooling 24°C/heating 20°C 5°C cooling 24°C/heating 19°C 6°C cooling 24°C/heating 18°C 7°C cooling 24°C/heating 17°C Setting: Auto-restart after power failure Depending on the needs of the user, you may disable/enable the automatic restart...
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Page 78: Hand-Over To The User
Hand-over to the user 21 Hand-over to the user Once the test run is finished and the unit operates properly, please make sure the following is clear for the user: ▪ Make sure that the user has the printed documentation and ask him/her to keep it for future reference. -
Page 79: Troubleshooting
Troubleshooting 22 Troubleshooting 22.1 Solving problems based on error codes If the unit runs into a problem, the user interface displays an error code. It is important to understand the problem and to take measures before resetting an error code. This should be done by a licensed installer or by your local dealer. This chapter gives you an overview of most possible error codes and their descriptions as they appear on the user interface. - Page 80 Troubleshooting Code Description Room temperature thermistor in remote controller abnormality FXFA20~125A2VEB Installer and user reference guide VRV system air conditioner 4P599624-1A – 2020.06...
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Page 81: Disposal
Disposal 23 Disposal NOTICE 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. FXFA20~125A2VEB Installer and user reference guide VRV system air conditioner... -
Page 82: Technical Data
Technical data 24 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). 24.1 Wiring diagram 24.1.1 Unified wiring diagram legend... - Page 83 Technical data Symbol Meaning AC*, CN*, E*, HA*, HE*, HL*, HN*, HR*, Connection, connector MR*_A, MR*_B, S*, U, V, W, X*A, K*R_*, NE D*, V*D Diode Diode bridge DIP switch Heater FU*, F*U, (for characteristics, refer to Fuse PCB inside your unit) Connector (frame ground) Harness H*P, LED*, V*L...
- Page 84 Technical data Symbol Meaning Thermo switch Residual current device Resistor Thermistor Receiver Limit switch Float switch S*NG Refrigerant leak detector S*NPH Pressure sensor (high) S*NPL Pressure sensor (low) S*PH, HPS* Pressure switch (high) S*PL Pressure switch (low) Thermostat S*RH Humidity sensor S*W, SW* Operation switch SA*, F1S...
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Page 85: 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 88 4P599624-1A 2020.06 Verantwortung für Energie und Umwelt...