Daikin FTXA20C2V1BW Installer's Reference Manual
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- User reference manual (60 pages) ,
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Summary of Contents for Daikin FTXA20C2V1BW
- Page 1 Installer reference guide Daikin room air conditioner CTXA15C2V1BW CTXA15C2V1BS CTXA15C2V1BB FTXA20C2V1BW FTXA20C2V1BS FTXA20C2V1BB FTXA25C2V1BW FTXA25C2V1BS FTXA25C2V1BB FTXA35C2V1BW FTXA35C2V1BS FTXA35C2V1BB FTXA42C2V1BW FTXA42C2V1BS FTXA42C2V1BB FTXA50C2V1BW FTXA50C2V1BS FTXA50C2V1BB...
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Page 2: Table Of Contents
To connect the electrical wiring to the indoor unit ....................... 42 To connect optional accessories (wired user interface, central user interface, etc.) ........... 43 9 Finishing the indoor unit installation Installer reference guide CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Daikin room air conditioner 4P518023-15P – 2023.05... - Page 3 To perform a test run using the wireless remote control ................50 12 Hand-over to the user 13 Disposal 14 Technical data 14.1 Wiring diagram................................53 14.1.1 Unified wiring diagram legend ........................53 15 Glossary CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05...
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Page 4: About The Documentation
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 5: Meaning Of Warnings And Symbols
About the documentation Technical engineering data ▪ A subset of the latest technical data is available on the regional Daikin website (publicly accessible). ▪ The full set of latest technical data is available on the Daikin Business Portal (authentication required). - Page 6 Example: " 1–3 Figure title" means "Figure 3 in chapter 1". Indicates a table title or a reference to it. Example: " 1–3 Table title" means "Table 3 in chapter 1". CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05...
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Page 7: General Safety Precautions
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
WARNING Make sure installation, servicing, maintenance and repair comply with instructions from Daikin and with applicable legislation and are executed ONLY by authorised persons. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P –... - Page 9 Keep the pipework installation to a minimum. To determine the minimum floor area 1 Determine the total refrigerant charge in the system (= factory refrigerant charge additional refrigerant amount charged). CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05...
- Page 10 Total refrigerant charge in the system Minimum floor area (a) Ceiling-mounted unit (= Ceiling-mounted unit) (b) Wall-mounted unit (= Wall-mounted unit) (c) Floor-standing unit (= Floor-standing unit) CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05...
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Page 11: Refrigerant - In Case Of R410A Or R32
Make sure refrigerant piping installation complies with applicable legislation. In Europe, EN378 is the applicable standard. NOTICE Make sure the field piping and connections are NOT subjected to stress. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 12: Electrical
For the location of the terminals, see the wiring diagram. ▪ Do NOT touch electrical components with wet hands. ▪ Do NOT leave the unit unattended when the service cover is removed. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... - Page 13 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. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05...
- Page 14 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. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05...
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Page 15: Specific Installer Safety Instructions
Use flare nuts that are included with the unit. Using different flare nuts may cause refrigerant gas leakage. "8 Electrical installation" [ 39]) Electrical installation (see DANGER: RISK OF ELECTROCUTION WARNING ALWAYS use multicore cable for power supply cables. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... - Page 16 This could result in electrical shock or fire. WARNING Keep the interconnection wiring away from copper pipes without thermal insulation as such pipes will be very hot. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05...
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Page 17: About The Box
"9.3 To fix the unit on the mounting plate" [ 45]. f Dry battery AAA.LR03 (alkaline) for the wireless remote control g Wireless remote control (user interface) holder h Wireless remote control (user interface) CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... - Page 18 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). CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05...
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Page 19: About The Unit
Condensation and water dripping might occur if the unit runs outside its operation range. 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. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 20: Precautions When Using The Wireless Lan
About the unit INFORMATION: Declaration of conformity ▪ Daikin Industries Czech Republic s.r.o. declares that the radio equipment type inside of this unit is in compliance with Directive 2014/53/EU and S.I. 2017/1206: Radio Equipment Regulations 2017. ▪ This unit is considered as combined equipment according to the definition of Directive 2014/53/EU and S.I. 2017/1206: Radio Equipment Regulations 2017. - Page 21 About the unit INFORMATION Scan the QR code to download and install the ONECTA app on your mobile phone or tablet: CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05...
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Page 22: Unit Installation
The sound pressure level is less than 70 dBA. ▪ Air flow. Make sure nothing blocks the air flow. ▪ Drainage. Make sure condensation water can be evacuated properly. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... - Page 23 (mm) Note: Make sure that there are no obstacles within 500 mm under the infrared signal receiver. They may influence reception performance of the wireless remote control. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05...
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Page 24: Opening The Unit
2 Open the panel locks located on the back side of the panel (1 on each side). a Panel lock 3 Push the right arm lightly to the right to disconnect the shaft from the shaft slot on the right side. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 25: To Open The Service Cover
4 Remove the flap by pushing it to the left side and towards you. 5 Remove the 2 screw covers using a long flat plate such as a ruler wrapped in a cloth and remove 2 screws. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 26: To Remove The Electrical Wiring Box Cover
1 Remove 1 screw from the electrical wiring box. 2 Open the electrical wiring box cover by pulling it to the front. 3 Remove the electrical wiring box cover from the 2 rear hooks. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 27: Mounting The Indoor Unit
4 Finish the installation by securing the mounting plate on the wall using M4×25L screws (field supply). INFORMATION The removed pipe port cover can be kept in the mounting plate pocket. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 28: To Drill A Wall Hole
Wall embedded pipe b Putty c Wall hole cover 4 After completing wiring, refrigerant piping and drain piping, do NOT forget to seal the gap with putty. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 29: To Remove The Pipe Port Cover
NOTICE ▪ Install the drain hose with a downward slope. ▪ Traps are NOT permitted. ▪ Do NOT put the end of the hose in water. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 30: To Connect The Piping On Right Side, Right-Back, Or Right-Bottom
1 Attach the drain hose with adhesive vinyl tape to the bottom of the refrigerant pipes. 2 Wrap the drain hose and the refrigerant pipes together using insulation tape. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 31: To Connect The Piping On Left Side, Left-Back, Or Left-Bottom
Insulation fixing screw b Drain hose 4 Attach the drain hose to the refrigerant piping bottom side using adhesive vinyl tape. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 32: To Check For Water Leaks
6.4.4 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. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 33: Piping Installation
Ø9.5 Ø6.4 Ø12.7 Refrigerant piping material ▪ Piping material: phosphoric acid deoxidised seamless copper ▪ Flare connections: Only use annealed material. ▪ Piping temper grade and thickness: CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 34: Refrigerant Piping Insulation
Connecting the refrigerant piping to the outdoor unit ▪ Insulating the refrigerant piping ▪ Keeping in mind the guidelines for: Pipe bending Flaring pipe ends Using the stop valves CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 35: Precautions When Connecting The Refrigerant Piping
Use caution when passing copper tubes through walls (see figure below). Unit Installation period Protection method Outdoor unit >1 month Pinch the pipe <1 month Pinch or tape the pipe Indoor unit Regardless of the period CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 36: Guidelines When Connecting The Refrigerant Piping
1 Cut the pipe end with a pipe cutter. 2 Remove burrs with the cut surface facing down so that the chips do NOT enter the pipe. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 37: To Connect The Refrigerant Piping To The Indoor Unit
Liquid pipe (with insulation) (field supply) d Gas pipe (with insulation) (field supply) e Slit on heat insulation pipe cover facing up f Vinyl tape (field supply) CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 38: To Check Refrigerant Piping Joints For Leaks After Charging Refrigerant
Test leaks using a pressure of at least 0.25 times the maximum working pressure (see "PS High" on the unit nameplate). If a leak is detected 1 Recover the refrigerant, repair the joint, and repeat the test. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 39: Electrical Installation
ALWAYS use multicore cable for power supply cables. INFORMATION Also read the precautions and requirements in the "2 General safety precautions" [ 7]. INFORMATION Also read "8.1.3 Specifications of standard wiring components" [ 41]. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 40: Guidelines When Connecting The Electrical Wiring
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. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 41: Specifications Of Standard Wiring Components
8.1.3 Specifications of standard wiring components Component Interconnection cable Voltage 220~240 V (indoor↔outdoor) Wire size Only use harmonized wire providing double insulation and suitable for applicable voltage 4-core cable Minimum 1.5 mm² CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 42: To Connect The Electrical Wiring To The Indoor Unit
Note: In case the interconnection cable was stripped in advance, cover the ends with insulating tape. 4 Bend the end of the cable up. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 43: To Connect Optional Accessories (Wired User Interface, Central User Interface, Etc.)
S21 connector 3 Put the electrical wiring box cover back and pull the wire harness around it as shown in the figure above. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 44: Finishing The Indoor Unit Installation
1 Shape the refrigerant pipes along the pipe path marking on the mounting plate. a Drain hose b Caulk this hole with putty or caulking material c Adhesive vinyl tape d Insulation tape e Mounting plate (accessory) CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 45: To Fix The Unit On The Mounting Plate
4 Insert the wire harness back into the connector and secure it with the wire clamp. 5 Close the front panel. Refer to "9.4.4 To close the front panel" [ 46]. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 46: To Close The Service Cover
1 Open the front panel and turn the flap up. 2 Install both screw covers (1 on each side). 3 Return flap to its original position and close the front panel. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 47: Configuration
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. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... - Page 48 Configuration 7 When the setting is complete, keep pressed for at least 5 seconds. Result: The user interface will return to the previous screen. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05...
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Page 49: Commissioning
11 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 50: To Perform A Test Run
2 Press simultaneously. 3 Press , select and press Result: Test run operation will stop automatically after about 30 minutes. 4 To stop operation sooner, press CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 51: Hand-Over To The User
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. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 52: Disposal
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. CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05... -
Page 53: Technical Data
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 on the inner right side of the indoor unit front grille. - Page 54 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) Circuit breaker CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05...
- Page 55 (IGBT) power module Wireless remote controller Terminal Terminal strip (block) Electronic expansion valve coil Y*R, Y*S Reversing solenoid valve coil Ferrite core ZF, Z*F Noise filter CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S) Installer reference guide Daikin room air conditioner 4P518023-15P – 2023.05...
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Page 56: 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 60 4P518023-15P 2023.05 Verantwortung für Energie und Umwelt...
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