Daikin CTXF20F5V1B Installer's Reference Manual

Split system air conditioners

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CTXF20F5V1B

CTXF25F5V1B

CTXF35F5V1B

Installer reference guide

Split system air conditioners

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Page 1 Installer reference guide Split system air conditioners CTXF20F5V1B CTXF25F5V1B CTXF35F5V1B...
Page 2 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 Brine ................................
Page 3 Table of contents 8.2.5 To connect the electrical wiring to the indoor unit ..................8.2.6 To connect to an HA system (Wired remote controller, Central remote controller, wireles adaptor, etc.) ................................9 Finishing the indoor unit installation To insulate the drain piping, refrigerant piping and interconnection cable..............To pass the pipes through the wall hole........................
Page 4 ▪ 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). CTXF20~35F5V1B Installer reference guide Split system air conditioners...
Page 5 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 6 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 7 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 Wear adequate personal protective equipment (protective gloves, safety glasses,…) when installing, maintaining or servicing the system.
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 ▪...
Page 9 General safety precautions 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 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.
Page 11 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 12 General safety precautions 2.2.5 Water If applicable. See the installation manual or installer reference guide of your application for more information. NOTICE Make sure water quality complies with EU directive 2020/2184. 2.2.6 Electrical DANGER: RISK OF ELECTROCUTION ▪ Turn OFF all power supply before removing the switch box cover, connecting electrical wiring or touching electrical parts.
Page 13 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.
Page 14 Specific installer safety instructions 3 Specific installer safety instructions Always observe the following safety instructions and regulations. Unit installation (see "6 Unit installation" [ 25]) WARNING Installation shall be done by an installer, the choice of materials and installation shall comply with the applicable legislation. In Europe, EN378 is the applicable standard. "6.1 Preparing the installation site" [ 25])
Page 15 Specific installer safety instructions WARNING Connect the refrigerant piping securely before running the compressor. If the refrigerant piping is NOT connected and the stop valve is open when the compressor is run, air will be sucked in. This will cause abnormal pressure in the refrigeration cycle, which may result in equipment damage and even injury.
Page 16 Specific installer safety instructions WARNING ▪ All wiring MUST be performed by an authorised electrician and MUST comply with the national wiring regulation. ▪ Make electrical connections to the fixed wiring. ▪ All components procured on-site and all electrical construction MUST comply with the applicable legislation.
Page 17 Specific installer safety instructions 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. For the location of the terminals, see the wiring diagram.
Page 18 Specific installer safety instructions WARNING Prevent hazards due to inadvertent resetting of the thermal cut-out: power to this appliance MUST NOT be supplied through an external switching device, such as a timer, or connected to a circuit that is regularly turned ON and OFF by the utility. WARNING: MILDLY FLAMMABLE MATERIAL The refrigerant inside this unit is mildly flammable.
Page 19 About the box 4 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 20 About the box 4.2.1 To unpack the indoor unit 4.2.2 To remove the accessories from the indoor unit 1 Remove: ▪ the accessory bag located at the bottom of the package, ▪ the mounting plate attached to the back of the indoor unit. ▪...
Page 21 About the box 2 Spare SSID sticker. Do NOT throw away the spare sticker. Keep it in a safe place in case it is needed in future (e.g. in case the front grille was replaced attach it to the new front grille). CTXF20~35F5V1B Installer reference guide Split system air conditioners...
Page 22 About the unit 5 About the unit WARNING: MILDLY FLAMMABLE MATERIAL The refrigerant inside this unit is mildly flammable. 5.1 System layout INFORMATION The following figures are examples and may NOT completely match your system layout. a Indoor unit b Service lid c Air filter d Titanium apatite deodorizing and silver particle filter e Refrigerant piping, drain hose and interconnection cable...
Page 23 About the unit 5.3 About the wireless LAN For detailed specifications, installation instructions, setting methods, FAQ, declaration of conformity and the latest version of this manual, visit app.daikineurope.com. 5.3.1 Precautions when using the wireless LAN Do NOT use near: ▪ Medical equipment.
Page 24 About the unit INFORMATION Scan the QR code to download and install the ONECTA app on your mobile phone or tablet: CTXF20~35F5V1B Installer reference guide Split system air conditioners 4P769827-10D – 2024.09...
Page 25 Unit installation 6 Unit installation In this chapter Preparing the installation site ..............................6.1.1 Installation site requirements of the indoor unit....................Opening the indoor unit ................................. 6.2.1 To remove the front panel............................. 6.2.2 To re-install the front panel ........................... 6.2.3 To remove the front grille............................
Page 26 Unit installation ▪ Wall strength. Check whether the wall or the floor is strong enough to support the weight of the unit. If there is a risk, reinforce the wall or the floor before installing the unit. Install power cables at least 1 metre away from televisions or radios to prevent interference.
Page 27 Unit installation 6.2 Opening the indoor unit 6.2.1 To remove the front panel 1 Hold the front panel by the panel tabs on both sides and open it. a Panel tabs 2 Remove the front panel by sliding it to the left or the right and pulling it toward you.
Page 28 Unit installation b Symbol with 3 circles 4 We recommend opening the flap before removing the front grille. 5 Place both hands under the centre of the front grille, push it up and then toward you. 6.2.4 To re-install the front grille 1 Install the front grille and firmly engage the 3 upper hooks.
Page 29 Unit installation a Service cover screw b Service cover 6.3 Installing the indoor unit 6.3.1 Precautions when installing the indoor unit INFORMATION Also read the precautions and requirements in the following chapters: ▪ General safety precautions ▪ Preparation 6.3.2 To install the mounting plate 1 Install the mounting plate temporarily.
Page 30 Unit installation o: 770 LIQUID PIPE END GAS PIPE END FOR FTXTP LONGER PIPING USE MARKING L, G UNIT CENTER PIPING HOLE CENTER: PIPING HOLE CENTER: 160mm TO THE LEFT 170mm TO THE RIGHT l: ±515 m: ±565 (mm) n: ±605 a Recommended mounting plate fixing spots i1 Piping hole center: 160 mm to the left b Pocket for the pipe port cover...
Page 31 Unit installation 4 After completing wiring, refrigerant piping and drain piping, do NOT forget to seal the gap with putty. 6.3.4 To remove the pipe port cover INFORMATION To connect the piping on right-side, right-bottom, left-side or left-bottom, the pipe port cover MUST be removed.
Page 32 Unit installation NOTICE ▪ Install the drain hose with a downward slope. ▪ Traps are NOT permitted. ▪ Do NOT put the end of the hose in water. ▪ Drain hose extension. To extend the drain hose, use a field supplied hose with inner Ø16 mm.
Page 33 Unit installation A Right-side piping B Right-bottom piping C Right-back piping a Remove the pipe port cover here for right side piping b Remove the pipe port cover here for right-bottom piping To connect the piping on left side, left-back, or left-bottom INFORMATION The factory default is right-side piping.
Page 34 Unit installation A Left-side piping B Left-back piping C Left-bottom piping a Remove the pipe port cover here for left-side piping b Remove the pipe port cover here for left-bottom piping To check for water leaks 1 Remove the air filters. 2 Gradually pour approximately 1 ...
Page 35 Piping installation 7 Piping installation In this chapter Preparing refrigerant piping ..............................7.1.1 Refrigerant piping requirements ........................... 7.1.2 Refrigerant piping insulation ..........................Connecting the refrigerant piping............................7.2.1 About connecting the refrigerant piping....................... 7.2.2 Precautions when connecting the refrigerant piping ................... 7.2.3 Guidelines when connecting the refrigerant piping .....................
Page 36 Piping installation 7.1.2 Refrigerant piping insulation ▪ Use polyethylene foam as insulation material: with a heat transfer rate between 0.041 and 0.052 W/mK (0.035 and 0.045 kcal/mh°C) with a heat resistance of at least 120°C ▪ Insulation thickness: Pipe outer diameter (Ø ) Insulation inner diameter Insulation thickness (t) (Ø...
Page 37 Piping installation NOTICE ▪ Do NOT use mineral oil on flared part. ▪ NEVER install a drier to this R32 unit to guarantee its lifetime. The drying material may dissolve and damage the system. NOTICE Take the following precautions on refrigerant piping into account: ▪...
Page 38 Piping installation a Torque wrench b Spanner c Piping union d Flare nut Piping size (mm) Tightening torque Flare dimensions Flare shape (mm) (N•m) (A) (mm) 90° ±2 Ø6.4 15~17 8.7~9.1 ØA Ø9.5 33~39 12.8~13.2 0.4~0.8 7.2.4 Pipe bending guidelines Use a pipe bender for bending.
Page 39 Piping installation 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. 7.2.6 To connect the refrigerant piping to the indoor unit WARNING: MILDLY FLAMMABLE MATERIAL The refrigerant inside this unit is mildly flammable.
Page 40 Electrical installation 8 Electrical installation 8.1 Preparing electrical wiring 8.1.1 About preparing electrical wiring INFORMATION Also read the precautions and requirements in the "2 General safety precautions" [ 5]. WARNING ▪ If the power supply has a missing or wrong N-phase, equipment might break down.
Page 41 Electrical installation 8.2.2 Precautions when connecting the electrical wiring DANGER: RISK OF ELECTROCUTION WARNING ▪ All wiring MUST be performed by an authorised electrician and MUST comply with the national wiring regulation. ▪ Make electrical connections to the fixed wiring. ▪...
Page 42 Electrical installation To prepare stranded conductor wire for installation Method 1: Twisting conductor 1 Strip insulation (20 mm) from the wires. 2 Slightly twist the end of the conductor to create a "solid-like" connection. Method 2: Using round crimp-style terminal (recommended) 1 Strip insulation from wires and slightly twist the end of each wire.
Page 43 Electrical installation 8.2.4 Specifications of standard wiring components Specifications Voltage 220~240 V Phase Frequency 50 Hz Interconnection cable Only use harmonised wire providing double insulation and suitable for the applicable voltage. 4-core cable Minimum 1.5 mm 8.2.5 To connect the electrical wiring to the indoor unit WARNING Provide adequate measures to prevent that the unit can be used as a shelter by small animals.
Page 44 Electrical installation Note: In case the interconnection cable was stripped in advance, cover the ends with insulating tape. 4 Bend the end of the cable up. a Terminal block b Electrical component block c Cable clamp 5 Strip the wire ends approximately 15 mm. 6 Match wire colours with terminal numbers on the indoor unit terminal blocks and firmly screw the wires to the corresponding terminals.
Page 45 Electrical installation a HA connector(S21 ) CTXF20~35F5V1B Installer reference guide Split system air conditioners 4P769827-10D – 2024.09...
Page 46 Finishing the indoor unit installation 9 Finishing the indoor unit installation 9.1 To insulate the drain piping, refrigerant piping and interconnection cable 1 After the drain piping, refrigerant piping and the electrical wiring are finished, wrap refrigerant piping, interconnection cable and drain hose together using insulation tape.
Page 47 Finishing the indoor unit installation 2 Pass the drain hose and refrigerant piping through the wall hole and seal the gap with a putty. 9.3 To fix the unit on the mounting plate 1 Set the indoor unit on the mounting plate hooks. Use the " " marks as a guide.
Page 48 Configuration 10 Configuration 10.1 To set a different channel of the indoor unit infrared signal receiver In case 2 indoor units are installed in 1 room, you can change the channel for the infrared signal receiver on the indoor unit to avoid the wireless remote control signal confusion.
Page 49 Configuration ON/OFF a Operation lamp b Indoor unit ON/OFF switch 8 Press the indoor unit ON/OFF switch while the operation lamp is blinking. Jumper Address Factory setting After cutting with nippers INFORMATION If the setting could NOT be completed while the operation lamp was blinking, repeat the setting process from the beginning.
Page 50 Commissioning 11 Commissioning 11.1 Overview: Commissioning This chapter describes what you have to do and know to commission the system after it is installed. Typical workflow Commissioning typically consists of the following stages: Checking the "Checklist before commissioning". Performing a test run for the system. 11.2 Checklist before commissioning 1 After the installation of the unit, check the items listed below.
Page 51 Commissioning The correct pipe size is installed and the pipes are properly insulated. The stop valves (gas and liquid) on the outdoor unit are fully open. 11.3 To perform a test run Prerequisite: The power supply MUST be in the specified range. Prerequisite: Test run may be performed in cooling or heating mode.
Page 52 Hand-over to the user 12 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 53 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. CTXF20~35F5V1B Installer reference guide Split system air conditioners...
Page 54 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). 14.1 Wiring diagram The wiring diagram is delivered with the unit, located inside of the outdoor unit (bottom side of the top plate).
Page 55 Technical data Symbol Meaning BZ, H*O Buzzer Capacitor 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)
Page 56 Technical data Symbol Meaning Q*DI, KLM Earth leak circuit breaker Overload protector 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...
Page 57 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 60 DAIKIN ISITMA VE SOĞUTMA SİSTEMLERİ SAN.TİC. A.Ş. Gülsuyu Mahallesi, Fevzi Çakmak Caddesi, Burçak Sokak, No:20, 34848 Maltepe İSTANBUL / TÜRKİYE Tel: 0216 453 27 00 Faks: 0216 671 06 00 Çağrı Merkezi: 444 999 0 Web: www.daikin.com.tr 4P769827-10D 2024.09...

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