Related Manuals for Daikin FXKQ20AMVEB
Summary of Contents for Daikin FXKQ20AMVEB
- Page 1 Installer and user reference guide VRV system air conditioner FXKQ20AMVEB FXKQ25AMVEB FXKQ32AMVEB FXKQ40AMVEB FXKQ50AMVEB FXKQ63AMVEB...
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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 — in case of R410A or R32......................2.2.4 Electrical................................. - Page 3 Table of contents For the installer 14 About the box 14.1 Indoor unit..................................14.1.1 To unpack and handle the unit........................14.1.2 To remove the accessories from the indoor unit..................15 About the units and options 15.1 Identification .................................. 15.1.1 Identification label: Indoor unit........................15.2 About the indoor unit..............................
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Page 4: About The Documentation
The original instructions are written in English. All other languages are translations of the original instructions. Technical engineering data ▪ A subset of the latest technical data is available on the regional Daikin website (publicly accessible). FXKQ-A Installer and user reference guide VRV system air conditioner 4P747548-1 –... - Page 5 About the documentation ▪ The full set of the latest technical data is available on the Daikin Business Portal (authentication required). FXKQ-A Installer and user reference guide VRV system air conditioner 4P747548-1 – 2023.11...
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Page 6: General Safety Precautions
General safety precautions 2 General safety precautions 2.1 About the documentation ▪ The original instructions are written in English. All other languages are translations of the original instructions. ▪ The precautions described in this document cover very important topics, follow them carefully. -
Page 7: For The Installer
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 8: Installation Site
General safety precautions CAUTION Wear adequate personal protective equipment (protective gloves, safety glasses,…) when installing, maintaining or servicing the system. CAUTION Do NOT touch the air inlet or aluminium fins of the unit. CAUTION ▪ Do NOT place any objects or equipment on top of the unit. ▪... - Page 9 General safety precautions DANGER: RISK OF EXPLOSION Pump down – Refrigerant leakage. If you want to pump down the system, and there is a leak in the refrigerant circuit: ▪ Do NOT use the unit's automatic pump down function, with which you can collect all refrigerant from the system into the outdoor unit.
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Page 10: Electrical
General safety precautions ▪ Whether the unit is factory charged with refrigerant or non-charged, in both cases you might need to charge additional refrigerant, depending on the pipe sizes and pipe lengths of the system. ▪ ONLY use tools exclusively for the refrigerant type used in the system, this to ensure pressure resistance and prevent foreign materials from entering into the system. - Page 11 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 12 General safety precautions Install power cables at least 1 meter away from televisions or radios to prevent interference. Depending on the radio waves, a distance of 1 meter may NOT be sufficient. NOTICE ONLY applicable if the power supply is three‑phase, and the compressor has an ON/ OFF starting method.
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Page 13: Specific Installer Safety Instructions
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 14 Specific installer safety instructions 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 shocks. ▪...
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Page 15: For The User
For the user FXKQ-A Installer and user reference guide VRV system air conditioner 4P747548-1 – 2023.11... -
Page 16: 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 can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning... -
Page 17: 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: dismantling the system, treatment of the refrigerant, of oil and of other parts MUST be done by an authorised installer and MUST comply with applicable legislation. - Page 18 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 19 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. WARNING 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.
- Page 20 User safety instructions WARNING Be careful with ladders when working in high places. DANGER: RISK OF ELECTROCUTION Disconnect the power supply for more than 10 minutes, and measure the voltage at the terminals of main circuit capacitors or electrical components before servicing. The voltage MUST be less than 50 V DC before you can touch electrical components.
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Page 21: 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 electrical 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 non-combustible, but it will generate toxic gas when it accidentally leaks into a room where combustion air from fan heaters, gas cookers, etc. -
Page 22: Information Requirements For Fan Coil Units
Sound power level (heating, per speed setting dB(A) if applicable) H: High, M: Medium, L: Low Contact details: DAIKIN INDUSTRIES CZECH REPUBLIC s.r.o. U Nové Hospody 1155/1, 301 00 Plzeň Skvrňany, Czech Republic FXKQ20AMVEB 0.034 H: 46.0, M: 43.5, H: 50.0, M: 46.0, L: 41.0 L: 41.5... -
Page 23: 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 24: Before Operation
Before operation 7 Before operation CAUTION "4 User safety instructions" [ 16] to acknowledge all related safety instructions. This operation manual is for the following systems with standard control. Before initiating operation, contact your dealer for the operation that corresponds to your system type and mark. -
Page 25: 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 26: 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 operation after approximately 6... - Page 27 Operation a Cooling operation b Heating operation 2 Horizontal airflow The following horizontal airflow directions can be set by the user interface: Direction Display Fixed position. The indoor unit blows air in 1 of 5 fixed positions. Swing. The indoor unit alternates between the 5 positions.
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Page 28: To Operate The System
Operation 8.3 To operate the system INFORMATION For setting of the operation mode, airflow direction or other settings, see the reference guide or operation manual of the user interface. FXKQ-A Installer and user reference guide VRV system air conditioner 4P747548-1 – 2023.11... -
Page 29: 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. NOTICE 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 30: Maintenance And Service
Maintenance and service 10 Maintenance and service 10.1 Precautions for maintenance and service CAUTION "4 User safety instructions" [ 16] to acknowledge all related safety instructions. NOTICE NEVER inspect or service the unit by yourself. Ask a qualified service person to perform this work. However, as end user, you may clean the air filter and the unit exterior. -
Page 31: Cleaning The Unit Exterior And Air Filter
Maintenance and service 10.2 Cleaning the unit exterior and air filter CAUTION Turn off the unit before cleaning the unit exterior and air filter. NOTICE ▪ Do NOT use gasoline, benzene, thinner polishing powder or liquid insecticide. Possible consequence: Discoloration and deformation. ▪... -
Page 32: Maintenance Before A Long Stop Period
Maintenance and service 3 Clean the air filters. 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 filters in the shadow. 5 Reattach the air filters and close panel. 6 Turn ON the power. - Page 33 Maintenance and service NOTICE Applicable legislation on fluorinated greenhouse gases requires that the refrigerant charge of the unit is indicated both in weight and CO equivalent. 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.
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Page 34: Troubleshooting
Troubleshooting 11 Troubleshooting If one of the following malfunctions occurs, 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, electrical shock or fire. -
Page 35: 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 36: 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 37: Symptom: The Fan Runs After The Unit Is Turned Off Via The User Interface
Troubleshooting 11.1.11 Symptom: The fan runs after the unit is turned off via the user interface ▪ Cooling mode: After stopping the unit in cooling, the suction grill and flaps close. The indoor fan runs for 30 minutes to dry out inside of the unit, preventing mould and odours. -
Page 38: Relocation
Relocation 12 Relocation Contact your dealer to remove and reinstall the entire unit. Moving units requires technical expertise. FXKQ-A Installer and user reference guide VRV system air conditioner 4P747548-1 – 2023.11... -
Page 39: Disposal
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. FXKQ-A Installer and user reference guide VRV system air conditioner... -
Page 40: For The Installer
For the installer FXKQ-A Installer and user reference guide VRV system air conditioner 4P747548-1 – 2023.11... -
Page 41: About The Box
About the box 14 About the box Keep the following in mind: ▪ At delivery, the unit MUST be checked for damage and completeness. Any damage or missing parts MUST be reported immediately to the claims agent of the carrier. ▪... - Page 42 About the box 1× 1× 1× 8× 6× 4× 4× 3× 2× 2× 1× 1× A Located under the unit a Installation and operation manual b General safety precautions B Located under the unit c Paper pattern for installation C Located on the side of the unit d Drain hose e Metal clamp f Clamp washer for hanger bracket...
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Page 43: 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 Components ................................... 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 44: Combining Units And Options
About the units and options e f g h °C a Indoor unit b Discharge air c Suction air d Air filter e Drain pipe f Refrigerant piping g Power supply cable h Interconnection cable i User interface cable j User interface 15.4 Combining units and options INFORMATION Certain options may NOT be available in your country. -
Page 45: 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 Choose an installation location with sufficient space to transport the unit in and out of the site. -
Page 46: Mounting The Indoor Unit
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. - Page 47 Unit installation ▪ Ceiling strength. Check whether the ceiling is strong enough to support the weight of the unit. If there is a risk, reinforce the ceiling before installing the unit. For existing ceilings, use anchors. For new ceilings, use sunken inserts, sunken anchors or other field supplied parts.
- Page 48 Unit installation Side view (mm) a Suspension bolt b Ceiling NOTICE Make sure the decoration panel overlaps the ceiling opening by at least 20 mm. The distance between the indoor unit and the ceiling opening must be ≤35 mm; if it is more, install additional ceiling material or repair the ceiling.
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Page 49: Guidelines When Installing The Drain Piping
Unit installation 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. 16.2.2 Guidelines when installing the drain piping Make sure condensation water can be evacuated properly. - Page 50 Unit installation (mm) a T-joint To connect the drain piping to the indoor unit NOTICE Incorrect connection of the drain hose might cause leaks, and damage the installation space and surroundings. a Drain outlet for maintenance b Drain pipe connection c Refrigerant pipes Drain piping connection 1 Push the drain hose as far as possible over the drain pipe connection.
- Page 51 Unit installation c Drain hose (accessory) d Metal clamp (accessory) e Large sealing pad (accessory) f Drain piping (field supply) Drain outlet for maintenance Pull out the plug. ▪ Do NOT wiggle the plug up and down. Push in the plug. ▪...
- Page 52 Unit installation a Plastic water container with tube length ≥100 mm b Drain pump and float switch location c Service drain outlet (with rubber plug). Use this outlet to drain water from the drain pan. 5 Turn OFF the power. 6 Disconnect the electrical wiring. ▪...
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Page 53: 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 54: 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 55: 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: ▪ "2 General safety precautions" [ 6] ▪ "17.1 Preparing refrigerant piping" [ 53] DANGER: RISK OF BURNING/SCALDING NOTICE ▪ Do NOT use mineral oil on flared part. ▪... -
Page 56: 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 57: To Connect The Refrigerant Piping To The Indoor Unit
Piping installation Flare tool for R410A 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. a Flare’s inner surface MUST be flawless. b The pipe end MUST be evenly flared in a perfect circle. c Make sure the flare nut is fitted. - Page 58 Piping installation NOTICE Make sure to insulate all refrigerant piping. Any exposed piping might cause condensation. FXKQ-A Installer and user reference guide VRV system air conditioner 4P747548-1 – 2023.11...
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Page 59: 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 60: 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 shocks. ▪... -
Page 61: Specifications Of Standard Wiring Components
Electrical installation Use the following methods for installing wires: Wire type Installation method Single-core wire AA´ A´ Stranded conductor wire twisted to "solid-like" connection a Curled wire (single-core or twisted stranded conductor wire) b Screw c Flat washer Stranded conductor wire with round crimp-style terminal a Terminal... -
Page 62: To Connect The Electrical Wiring To The Indoor Unit
Electrical installation Power supply of the product FXKQ 20, 25, 32: 0.4 A FXKQ40: 0.6 A FXKQ50: 0.9 A FXKQ63: 1.4 A MCA=Minimum circuit ampacity. Stated values are maximum values (see electrical data of indoor unit for exact values). Wiring / circuit breaker (field supplied) Power supply cable MUST comply with national wiring regulation. - Page 63 Electrical installation 2× a Service cover b Service cover handle c Sliding direction of service cover 2 User interface cable: Route the cable through the frame and connect it to the terminal block (P1, P2). 3 Transmission cable: Route the cable through the frame and connect it to the terminal block (make sure the symbols F1 and F2 match with the symbols on the outdoor unit).
- Page 64 Electrical installation TO IN/D TO OUT/D a Outdoor unit b Indoor unit c User interface d Most downstream indoor unit Group control or 2 user interfaces control 1 indoor unit TO IN/D TO OUT/D a Outdoor unit b Indoor unit c User interface d Most downstream indoor unit With BS unit...
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Page 65: Commissioning
19 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 66: Checklist Before Commissioning
Commissioning INFORMATION During the first running period of the unit, the required power may be higher than stated on the nameplate of the unit. This phenomenon is caused by the compressor, that needs a continuous run time of 50 hours before reaching smooth operation and stable power consumption. -
Page 67: 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 ▪ Air volume when thermostat control is OFF ▪ Time to clean air filter ▪... - Page 68 Configuration If you want… Then — During thermostat 12 (22) OFF at cooling Setup volume operation Monitoring 1 Monitoring 2 During thermostat 12 (22) OFF at heating Setup volume operation Monitoring 1 Monitoring 2 Only use in combination with optional remote sensor or when setting M 10 (20), SW 2, — 03 is used.
- Page 69 Configuration Setting: Thermostat differential changeover (if remote sensor is used) If the system contains a remote sensor, set the increase/decrease increments. If you want to change increments to… Then — 1°C 12 (22) 0.5°C Setting: Automatic changeover differential Set temperature difference between cooling setpoint and heating setpoint in automatic mode (availability depends on the system type).
- Page 70 Configuration Wiring requirements Wiring size 0.75~1.25 mm Wiring length Maximum 100 m External contact specification Contact that can make and break the min. load of DC15 V · 1 mA This setting must correspond with the needs of the user. If you want to set…...
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Page 71: 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, 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 72: 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 73: 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. FXKQ-A Installer and user reference guide VRV system air conditioner... -
Page 74: 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). 24.1 Wiring diagram 24.1.1 Unified wiring diagram legend For applied parts and numbering, refer to the wiring diagram on the unit. - Page 75 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 76 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 77: 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 80 4P747548-1 2023.11...
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