To insulate the drain piping, refrigerant piping and interconnection cable..............43 To pass the pipes through the wall hole ........................43 To fix the unit on the mounting plate ..........................44 Installer reference guide FTXF20~42E5V1B + ATXF20~42E5V1B Daikin room air conditioner 4P519439-19U – 2022.09...
Page 3
To perform a test run in winter season ......................48 12 Hand-over to the user 13 Disposal 14 Technical data 14.1 Wiring diagram................................51 14.1.1 Unified wiring diagram legend ........................51 15 Glossary FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
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).
Hand‑over to the user What to give and explain to the user Disposal How to dispose of the system Technical data Specifications of the system Glossary Definition of terms FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Indicates a situation that could result in minor or moderate injury. NOTICE Indicates a situation that could result in equipment or property damage. INFORMATION Indicates useful tips or additional information. Symbols used on the unit: FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
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).
Corrosion of copper pipes or soldered parts may cause the refrigerant to leak. ▪ In bathrooms. Instructions for equipment using R32 refrigerant WARNING: MILDLY FLAMMABLE MATERIAL The refrigerant inside this unit is mildly flammable. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Page 9
WARNING Make sure installation, servicing, maintenance and repair comply with instructions from Daikin and with applicable legislation 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 10
Then use the graph or table for… <1.8 m Floor-standing units 1.8≤x<2.2 m Wall-mounted units ≥2.2 m Ceiling-mounted units 3 Use the graph or table to determine the minimum floor area. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Use a separate recovery system so that the unit's compressor does NOT have to operate. WARNING During tests, NEVER pressurise the product with a pressure higher than the maximum allowable pressure (as indicated on the nameplate of the unit). FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Page 12
Charge the liquid refrigerant as follows: Then A siphon tube is present Charge with the cylinder upright. (i.e., the cylinder is marked with "Liquid filling siphon attached") FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
If NOT factory installed, a main switch or other means for disconnection, having a contact separation in all poles providing full disconnection under overvoltage category III condition, MUST be installed in the fixed wiring. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Page 14
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. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Page 15
ON and OFF while the product is operating, attach a reversed phase protection circuit locally. Running the product in reversed phase can break the compressor and other parts. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Do NOT reuse piping from previous installations. ▪ NEVER install a drier to this R32 unit to guarantee its lifetime. The drying material may dissolve and damage the system. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Page 17
NEVER directly touch any accidental leaking refrigerant. This could result in severe wounds caused by frostbite. Electrical installation (see "8 Electrical installation" [ 38]) WARNING The appliance MUST be installed in accordance with national wiring regulations. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Page 18
DANGER: RISK OF ELECTROCUTION All electrical parts (including thermistors) are powered by the power supply. Do NOT touch them with bare hands. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Page 19
Please note that some sections of the electric component box are hot. ▪ Make sure you do NOT touch a conductive section. ▪ Do NOT rinse the unit. This may cause electric shocks or fire. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Page 20
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. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Prepare in advance the path along which you want to bring the unit to its final installation position. 4.2 Indoor unit INFORMATION The following figures are just examples and may NOT completely match your system layout. 4.2.1 To unpack the indoor unit FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
"9.3 To fix the unit on the mounting plate" [ 44]. e Dry battery AAA.LR03 (alkaline) for user interface f User interface holder g User interface h Mounting plate FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
A safety device might stop the operation of the system if the unit runs outside its operation range. Condensation and water dripping might occur if the unit runs outside its operation range. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
The room size shall be as specified in the General safety precaution. WARNING Make sure installation, servicing, maintenance and repair comply with instructions from Daikin and with applicable legislation and are executed ONLY by authorised persons. 6.1.1 Installation site requirements of the indoor unit...
Page 25
Spacing. Install the unit at least 1.8 m from the floor and keep the following requirements in mind for distances from the walls and the ceiling: ≥50 ≥50 (mm) FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
1 Remove the front panel to remove the air filter. 2 Remove 2 screws from the front grille. 3 Push down the 3 upper hooks marked with a symbol with 3 circles. a Upper hook FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Screw 6.2.6 To open the service cover 1 Remove 1 screw from the service cover. 2 Pull out the service cover horizontally away from the unit. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Through-the-wall hole Ø65 mm e Drain hose position f Position for the tape measure at symbol " " g Gas pipe end h Liquid pipe end FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
1 Cut off the pipe port cover from inside the front grille using a coping saw. 2 Remove any burrs along the cut section using a half round needle file. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
(nominal Ø13 mm). a Drain hose supplied with the indoor unit b Drain socket with nominal Ø13 mm (field supply) c Ridgid polyvinyl chloride pipe (field supply) FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Page 31
Do NOT apply lubricating oil (refrigerant oil) to the drain plug when inserting it. The drain plug may deteriorate and cause drain leakage from the plug. a 4 mm hexagonal wrench FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Page 32
To check for water leaks 1 Remove the air filters. 2 Gradually pour approximately 1 l of water in the drain pan, and check for water leaks. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
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. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
7.2.2 Precautions when connecting the refrigerant piping INFORMATION Also read the precautions and requirements in the following chapters: ▪ "2 General safety precautions" [ 6] ▪ "7.1 Preparing refrigerant piping" [ 33] DANGER: RISK OF BURNING/SCALDING FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
▪ 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. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
4 Flare the pipe. Set exactly at the position as shown in the following figure. 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 FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Liquid pipe e Liquid pipe insulation f Finishing tape g Drain hose NOTICE Make sure to insulate all refrigerant piping. Any exposed piping might cause condensation. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
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. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
2 Install a round crimp-style terminal on the end of the wire. Place the round crimp-style terminal on the wire up to the covered part and fasten the terminal with the appropriate tool. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Must comply with applicable legislation Interconnection cable Minimum cable section of 2.5 mm² and applicable for 220~240 V Recommended field fuse 20 A Earth leakage circuit breaker Must comply with applicable legislation FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
8 Firmly fix the wires with the terminal screws. 9 Pull the wires to make sure that they are securely attached, then retain the wires with the wire retainer. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
4 Replace the electrical wiring cover as it was, and pull the harness around, as shown in the figure. a HA connector(S21 ) FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Insulation tape e Mounting plate (accessory) NOTICE ▪ Do NOT bend refrigerant pipes. ▪ Do NOT push the refrigerant pipes onto the bottom frame or the front grille. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
3 Press the bottom edge of the indoor unit with both hands until it is firmly caught by the mounting plate hooks. 4 Secure the indoor unit to the mounting plate using 2 indoor unit fixing screws M4×12L (accessory). FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
1 minute before turning the power supply back on. 4 Press simultaneously: Model Buttons FTXF, ATXF 5 Press: Model Button FTXF, ATXF 6 Select: Model Symbol FTXF, ATXF 7 Press: Model Button FTXF, ATXF FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Page 46
9 When the setting is complete, press: Model Button FTXF, ATXF Result: The user interface will return to the previous screen. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
The insulation resistance of the compressor is OK. There are NO damaged components or squeezed pipes on the inside of the indoor and outdoor units. There are NO refrigerant leaks. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Some of the functions CANNOT be used in the test run operation mode. If a power failure occurs during operation, the system automatically restarts immediately after power is restored. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Explain the user how to properly operate the system and what to do in case of problems. ▪ Show the user what to do for the maintenance of the unit. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
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. FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
Technical data 14 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). 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 52
N=* Number of passes through ferrite core Pulse-amplitude modulation PCB* Printed circuit board Power module Switching power supply PTC* PTC thermistor Insulated gate bipolar transistor (IGBT) FTXF20~42E5V1B + ATXF20~42E5V1B Installer reference guide Daikin room air conditioner 4P519439-19U – 2022.09...
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 56
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 4P519439-19U 2022.09 Verantwortung für Energie und Umwelt...
Need help?
Do you have a question about the FTXF20E5V1B and is the answer not in the manual?
Questions and answers