Table of contents Table of contents 1 About the documentation About this document ..............................Meaning of warnings and symbols..........................2 General safety precautions For the installer ................................2.1.1 General ................................2.1.2 Installation site ............................... 2.1.3 Refrigerant — in case of R410A or R32......................2.1.4 Electrical .................................
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Table of contents 14 About the box 14.1 Indoor unit ..................................39 14.1.1 To unpack and handle the unit ........................39 14.1.2 To remove the accessories from the indoor unit ..................40 15 About the units and options 15.1 Identification ................................... 42 15.1.1 Identification label: Indoor unit ........................
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).
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About the documentation DANGER: RISK OF BURNING/SCALDING Indicates a situation that could result in burning/scalding because of extreme hot or cold temperatures. DANGER: RISK OF EXPLOSION Indicates a situation that could result in explosion. WARNING Indicates a situation that could result in death or serious injury. WARNING: FLAMMABLE MATERIAL CAUTION Indicates a situation that could result in minor or moderate injury.
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).
General safety precautions Also, at least, following information MUST be provided at an accessible place at the product: ▪ Instructions for shutting down the system in case of an emergency ▪ Name and address of fire department, police and hospital ▪...
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General safety precautions WARNING ALWAYS recover the refrigerant. Do NOT release them directly into the environment. Use a vacuum pump to evacuate the installation. WARNING Make sure there is no oxygen in the system. Refrigerant may ONLY be charged after performing the leak test and the vacuum drying.
General safety precautions ▪ Charge the refrigerant in liquid form. Adding it in gas form may prevent normal operation. CAUTION When the refrigerant charging procedure is done or when pausing, close the valve of the refrigerant tank immediately. If the valve is NOT closed immediately, remaining pressure might charge additional refrigerant.
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General safety precautions CAUTION ▪ When connecting the power supply: connect the earth cable first, before making the current-carrying connections. ▪ When disconnecting the power supply: disconnect the current-carrying cables first, before separating the earth connection. ▪ The length of the conductors between the power supply stress relief and the terminal block itself MUST be as such that the current-carrying wires are tautened before the earth wire is in case the power supply is pulled loose from the stress relief.
Specific installer safety instructions 3 Specific installer safety instructions Always observe the following safety instructions and regulations. Unit installation (see "16 Unit installation" [ 44]) CAUTION Appliance NOT accessible to the general public, install it in a secured area, protected from easy access. This unit, both indoor and outdoor, is suitable for installation in a commercial and light industrial environment.
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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 shock. ▪...
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...
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.
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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.
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User safety instructions "10 Maintenance and service" [ 27]) Maintenance and service (see CAUTION: Pay attention to the fan! It is dangerous to inspect the unit while the fan is running. Make sure to turn OFF the main switch before executing any maintenance task. CAUTION Do NOT insert fingers, rods or other objects into the air inlet or outlet.
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User safety instructions CAUTION Turn off the unit before cleaning the unit exterior, air filter and suction grille. WARNING Do NOT let the indoor unit get wet. Possible consequence: Electrical shock or fire. About the refrigerant (see "10.5 About the refrigerant" [ 31]) WARNING ▪...
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.
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.
Before operation 7 Before operation CAUTION "4 User safety instructions" [ 14] 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.
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.
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...
Operation Direction Display Swing. The indoor unit alternates between the 5 positions. Note: The recommended position of the horizontal blades (flaps) varies according to the operation mode. a Cooling operation b Heating operation WARNING NEVER touch the air outlet or the horizontal blades while the swing flap is in 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.
Maintenance and service 10 Maintenance and service 10.1 Precautions for maintenance and service CAUTION "4 User safety instructions" [ 14] 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, suction grille and the unit exterior.
Maintenance and service 10.2 Cleaning the unit exterior, air filter and suction grille CAUTION Turn off the unit before cleaning the unit exterior, air filter and suction grille. NOTICE ▪ Do NOT use gasoline, benzene, thinner polishing powder or liquid insecticide. Possible consequence: Discoloration and deformation.
Maintenance and service a Filter knob 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.
Maintenance and service a Clip 3 Remove the air filter. Refer to "10.2.2 To clean the air filter" [ 28]. 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.
Maintenance and service 10.5 About the refrigerant This product contains fluorinated greenhouse gases. Do NOT vent gases into the atmosphere. Refrigerant type: R410A Global warming potential (GWP) value: 2087.5 NOTICE Applicable legislation on fluorinated greenhouse gases requires that the refrigerant charge of the unit is indicated both in weight and CO equivalent.
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, electrical shock or fire.
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. ▪...
Troubleshooting 11.1.2 Symptom: The fan speed does not correspond to the setting The fan speed does not change even if the fan speed adjustment button in pressed. During heating operation, when the room temperature reaches the set temperature, the outdoor unit goes off and the indoor unit changes to whisper fan speed.
Troubleshooting ▪ 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. 11.1.9 Symptom: Dust comes out of the unit When the unit is used for the first time in a long time.
Relocation 12 Relocation Contact your dealer to remove and reinstall the entire unit. Moving units requires technical expertise. FXHQ-A Installer and user reference guide VRV system air conditioner 4P715928-1 – 2022.11...
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. FXHQ-A Installer and user reference guide VRV system air conditioner...
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For the installer FXHQ-A Installer and user reference guide VRV system air conditioner 4P715928-1 – 2022.11...
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. ▪...
About the box FXHQ63+100 2 Lift the unit; make sure not to damage the resin side panel, the discharge horizontal blade and the air outlet. ▪ Do NOT lift the unit by the reinforcing plates; if the reinforcing plates are bent, this may cause noise during operation.
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About the box 1× 1× 1× 1× 1× 8× 7× 1× 4× 1× 1× 2× 2× 1× 1× a General safety precautions b Indoor unit installation and operation manual c Paper pattern for installation (part of the packing) d Drain hose e Metal clamp f Washer for hanger bracket g Tie wraps...
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...
About the units and options a Indoor unit b Outdoor unit c User interface d Suction air e Discharge air f Refrigerant piping + transmission cable g Drain pipe h Suction grille and air filter 15.4 Combining units and options INFORMATION Certain options may NOT be available in your country.
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.
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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.
Unit installation INFORMATION Some options may require additional service space. Sees the installation manual of the used option before installation. 16.2 Mounting the indoor unit 16.2.1 Guidelines when installing the indoor unit INFORMATION Optional equipment. When installing optional equipment, also read the installation manual of the optional equipment.
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Unit installation Front view (mm) Top (ceiling) view 4× (mm) FXHQ32 960 FXHQ63 1270 1230 FXHQ100 1590 1550 A Unit dimension B Suspension bolt pitch a Rear left drain piping outlet hole b Rear wiring outlet location c Wall hole for rear piping outlet (⌀100 mm) d Top panel wiring outlet position e Discharge f1 Nut (field supply)
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Unit installation NOTICE Do NOT install the unit tilted in other ways than specified. 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. To open the indoor unit ▪...
Unit installation 2 Remove the hanger bracket. Loosen the 2 hanger bracket installation bolts (M8) on both sides (total 4 places) within 10 mm. Remove the fixing screw (M5) from the rear hanger bracket and pull the hanger bracket backward in the direction of the arrow in order to remove it.
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Unit installation ▪ Connecting the drain piping to the indoor unit ▪ Checking for water leaks General guidelines ▪ Pipe length. Keep drain piping as short as possible. ▪ Pipe size. Keep the pipe size equal to or greater than that of the connecting pipe (vinyl pipe of 20 mm nominal diameter and 26 mm outer diameter).
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Unit installation a Fixing screw for protective grille b Protective grille 2 Remove the cap from the drain socket and remove the insulation material from the left side and apply it to the right side. Make sure the drain socket is fully pushed in to avoid water leakage.
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Unit installation b Rectangular part of the decoration side panel c Decoration side panel d Screw e Reinforcing plate f Right drain piping Drain piping connection A-A' A-A' d c b d c b a Drain pipe connection (attached to the unit) b Drain hose (accessory) c Metal clamp (accessory) d Large sealing pad (accessory)
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....................
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 ▪...
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. ▪...
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. ▪...
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. 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.
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Piping installation a b c a Clamp of the pipe port cover b Cables (except cable of expansion valve) Upward piping INFORMATION L-shaped connection piping kit (optional accessory) is required. 1 Remove the top pipe port cover and cut out the holes for piping. When cutting out the holes, make sure to avoid the knob part of the cover.
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Piping installation a Screw b Reinforcing plate c Decoration side panel ▪ Pipe length. Keep refrigerant piping as short as possible. ▪ Flare connections. Connect refrigerant piping to the unit using flare connections. ▪ Insulation. Insulate the refrigerant piping on the indoor unit as follows: A Gas piping B Liquid piping a Insulation material (field supply)
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:...
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. ▪...
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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...
Electrical installation 18.1.3 Specifications of standard wiring components Power supply Voltage 220~240 V/220 V Frequency 50/60 Hz Phase Current FXHQ32+63: 0.8 A FXHQ100: 1.6 A Components Power supply cable MUST comply with national wiring regulation. 3-core cable Wire size based on the current, but not less than 1.5 mm Transmission wiring Only use harmonised wire providing double...
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Electrical installation 2 Open the knockout hole and install the resin bushing (accessory). Refer to: "To mount the indoor unit" [ 48]. The location depends on the power supply wiring route. For transmission and user interface cable, choosing the same route as the refrigerant piping is recommended.
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Electrical installation m Wiring fixture fixed with a screw (accessory) n Tie wrap (accessory) 7 Seal all gaps with sealing material (accessory) to prevent small animals from entering the system. 8 Reattach the service cover. Complete system examples ▪ 1 user interface controls 1 indoor unit. ▪...
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Electrical installation TO IN/D TO OUT/D OUTDOOR UNIT INDOOR UNIT a Outdoor unit b BS unit c Indoor unit d User interface FXHQ-A Installer and user reference guide VRV system air conditioner 4P715928-1 – 2022.11...
Finishing the indoor unit installation 19 Finishing the indoor unit installation NOTICE Block any gaps around pipes and cables with sealing material (accessory) to avoid dust from entering the indoor unit. 19.1 To mount the suction grille and decoration side panel 1 Install securely in the reverse order.
20 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.
Commissioning NOTICE Cooling operation mode. Perform the test run in cooling operation mode so that stop valves failing to open can be detected. Even if the user interface was set to heating operation mode, the unit will run in cooling operation mode during 2‑3 minutes (although the user interface will display the heating icon), and then automatically switch to heating operation mode.
Configuration 21 Configuration 21.1 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 ▪...
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Configuration If you want… Then — During thermostat 12 (22) OFF at cooling Setup volume operation During thermostat 12 (22) OFF at heating Setup volume operation Only use in combination with optional remote sensor or when setting M 10 (20), SW 2, — 03 is used.
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Configuration If you want to use… Then — Unit sensor only (or remote sensor (if installed)) 10 (20) Unit sensor (or remote sensor (if installed)) AND (b)(c) remote controller sensor If setting 10(20)-6-01 + 10(20)-2-01 or 10(20)-2-02 or 10(20)-2-03 are set at the same time, then setting for group connection: 10(20)-6-01 has priority.
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Configuration Setting: T1/T2 input setting Remote control is available by transmission the external input to the terminals T1 and T2 on the terminal block for the user interface and the transmission wiring. FORCED Input A a Forced OFF b Input A Wiring requirements Wiring specification Only use harmonized wire providing...
Hand-over to the user 22 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.
Troubleshooting 23 Troubleshooting 23.1 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.
Disposal 24 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. FXHQ-A Installer and user reference guide VRV system air conditioner...
Technical data 25 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). 25.1 Wiring diagram 25.1.1 Unified wiring diagram legend...
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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...
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.
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4P715928-1 2022.11 Verantwortung für Energie und Umwelt...
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