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Summary of Contents for Daikin RXTJ30A2V1B
- Page 1 Installer reference guide R32 split series RXTJ30A2V1B RXTA30C2V1B RXTM30A2V1B RXTM40A2V1B RXTP25A2V1B RXTP35A2V1B...
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Page 2: Table Of Contents
Table of contents Table of contents 1 About the documentation About this document ..............................1.1.1 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......................11 2.1.4 Electrical ................................. - Page 3 Table of contents About connecting the electrical wiring .......................... 45 9.1.1 Precautions when connecting the electrical wiring..................45 9.1.2 Guidelines when connecting the electrical wiring..................46 9.1.3 Specifications of standard wiring components....................48 To connect the electrical wiring to the outdoor unit..................... 48 10 Finishing the outdoor unit installation 10.1 To finish the outdoor unit installation..........................
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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
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). ▪ The full set of latest technical data is available on the Daikin Business Portal (authentication required). - Page 6 About the documentation Symbols used on the unit: Symbol Explanation Before installation, read the installation and operation manual, and the wiring instruction sheet. Before performing maintenance and service tasks, read the service manual. For more information, see the installer and user reference guide.
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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. RXTJ-A_RXTA-C_RXTM-A_RXTP-A Installer reference guide R32 split series 4P728168-1 –... - Page 9 General safety precautions WARNING If one or more rooms are connected to the unit using a duct system, make sure: ▪ there are no operating ignition sources (example: open flames, an operating gas appliance or an operating electric heater) in case the floor area is less than the minimum floor area A (m²).
- Page 10 General safety precautions Contains fluorinated greenhouse gases GWP: xxx GWP × kg 1000 2 Determine which graph or table to use. ▪ For indoor units: Is the unit ceiling-mounted, wall-mounted or floor- standing? ▪ For outdoor units installed or stored indoors, this depends on the installation height: If the installation height is…...
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Page 11: Refrigerant - In Case Of R410A Or R32
General safety precautions 2.1.3 Refrigerant — in case of R410A or R32 If applicable. See the installation manual or installer reference guide of your application for more information. 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: ▪... -
Page 12: Electrical
General safety precautions NOTICE After all the piping has been connected, make sure there is no gas leak. Use nitrogen to perform a gas leak detection. ▪ In case recharge is required, see the nameplate or the refrigerant charge label of the unit. - Page 13 General safety precautions WARNING 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. WARNING ▪ ONLY use copper wires. ▪...
- Page 14 General safety precautions NOTICE Precautions when laying power wiring: ▪ Do NOT connect wiring of different thicknesses to the power terminal block (slack in the power wiring may cause abnormal heat). ▪ When connecting wiring which is the same thickness, do as shown in the figure above.
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Page 15: Specific Installer Safety Instructions
Specific installer safety instructions 3 Specific installer safety instructions Always observe the following safety instructions and regulations. To handle the outdoor unit (see "4.1.2 To handle the outdoor unit" [ 21]) CAUTION To avoid injury, do NOT touch the air inlet or aluminium fins of the unit. WARNING: MILDLY FLAMMABLE MATERIAL The refrigerant inside this unit is mildly flammable. - Page 16 Specific installer safety instructions CAUTION ▪ No brazing or welding on site for units with R32 refrigerant charge during shipment. ▪ During installation of the refrigeration system, joining of parts with at least one part charged shall be performed taking into account the following requirements: inside occupied spaces non-permanent joints are NOT allowed for R32 refrigerant except for site made joints directly connecting the indoor unit to piping.
- Page 17 Specific installer safety instructions "9 Electrical installation" [ 45]) Electrical installation (see WARNING ▪ All wiring MUST be performed by an authorised electrician and MUST comply with the applicable 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 18 Specific installer safety instructions "10 Finishing the outdoor unit Finishing indoor unit installation (see installation" [ 50]) DANGER: RISK OF ELECTROCUTION ▪ Make sure that the system is earthed properly. ▪ Turn OFF the power supply before servicing. ▪ Install the switch box cover before turning ON the power supply. Commissioning (see "11 Commissioning" [ 51])
- Page 19 Specific installer safety instructions WARNING ▪ Before carrying out any maintenance or repair activity, ALWAYS switch off the circuit breaker on the supply panel, remove the fuses or open the protection devices of the unit. ▪ Do NOT touch live parts for 10 minutes after the power supply is turned off because of high voltage risk.
- Page 20 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. DANGER: RISK OF ELECTROCUTION ▪...
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Page 21: About The Box
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 22: To Remove The Accessories From The Outdoor Unit
About the box a Drain socket b Accessory bag Make sure the unit is placed on a flat surface to avoid damage. 4.1.3 To remove the accessories from the outdoor unit 1 Lift the outdoor unit. 2 Remove the accessories at the bottom of the package. 1×... -
Page 23: About The Unit
About the unit 5 About the unit WARNING: MILDLY FLAMMABLE MATERIAL The refrigerant inside this unit is mildly flammable. 5.1 Identification NOTICE When installing or servicing several units at the same time, make sure NOT to switch the service panels between different models. 5.1.1 Identification label: Outdoor unit Location RXTJ-A_RXTA-C_RXTM-A_RXTP-A... -
Page 24: Unit Installation
Unit installation 6 Unit installation 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. In this chapter Preparing the installation site ..............................6.1.1 Installation site requirements of the outdoor unit .................... -
Page 25: Installation Site Requirements Of The Outdoor Unit
Unit installation WARNING The appliance shall be stored so as to prevent mechanical damage and in a well- ventilated room without continuously operating ignition sources (e.g. open flames, an operating gas appliance, or an operating electric heater). The room size shall be as specified in the General safety precaution. - Page 26 Unit installation a Baffle plate b Prevailing wind direction c Air outlet Do NOT install the unit in the following places: ▪ Sound sensitive areas (e.g. near a bedroom), so that the operation noise will cause no trouble. Note: If the sound is measured under actual installation conditions, the measured value might be higher than the sound pressure level mentioned in Sound spectrum in the data book due to environmental noise and sound reflections.
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Page 27: Additional Installation Site Requirements Of The Outdoor Unit In Cold Climates
Unit installation a Sea wind b Building c Outdoor unit d Windbreaker The outdoor unit is designed for outdoor installation only, and for ambient temperatures within the following ranges: Cooling mode Heating mode –10~46°C DB –30~24°C DB 6.1.2 Additional installation site requirements of the outdoor unit in cold climates Protect the outdoor unit against direct snowfall and take care that the outdoor unit is NEVER snowed up. -
Page 28: Opening The Unit
Unit installation 6.2 Opening the unit 6.2.1 About opening the unit At certain times, you have to open the unit. Example: ▪ When connecting the refrigerant piping ▪ When connecting the electrical wiring ▪ When maintaining or servicing the unit DANGER: RISK OF ELECTROCUTION Do NOT leave the unit unattended when the service cover is removed. -
Page 29: Precautions When Mounting The Outdoor Unit
Unit installation 6.3.2 Precautions when mounting the outdoor unit INFORMATION Also read the precautions and requirements in the following chapters: ▪ "2 General safety precautions" [ 7] ▪ "6.1 Preparing the installation site" [ 24] 6.3.3 To provide the installation structure Check the strength and level of the installation wall so that the unit will not cause any operating vibration or noise. -
Page 30: To Provide Drainage
Unit installation 6.3.5 To provide drainage Without drain socket ▪ Make sure that condensation water can be evacuated properly. ▪ Install the unit on a wall mounted installation legs to make sure, that there is proper drainage in order to avoid ice accumulation. ▪... -
Page 31: Piping Installation
Piping installation 7 Piping installation In this chapter Preparing refrigerant piping ..............................7.1.1 Refrigerant piping requirements ........................... 7.1.2 Refrigerant piping insulation..........................7.1.3 Refrigerant piping length and height difference ....................Connecting the refrigerant piping............................7.2.1 About connecting the refrigerant piping....................... 7.2.2 Precautions when connecting the refrigerant piping.................... -
Page 32: 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") Annealed (O) 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. 7.1.2 Refrigerant piping insulation ▪... -
Page 33: About Connecting The Refrigerant Piping
Piping installation 7.2.1 About connecting the refrigerant piping Before connecting the refrigerant piping Make sure the outdoor and indoor unit are mounted. Typical workflow Connecting the refrigerant piping involves: ▪ Connecting the refrigerant piping to the indoor unit ▪ Connecting the refrigerant piping to the outdoor unit ▪... -
Page 34: Guidelines When Connecting The Refrigerant Piping
Piping installation NOTICE Take the following precautions on refrigerant piping into account: ▪ Avoid anything but the designated refrigerant to get mixed into the refrigerant cycle (e.g. air). ▪ Only use R32 when adding refrigerant. ▪ Only use installation tools (e.g. manifold gauge set) that are exclusively used for R32 installations to withstand the pressure and to prevent foreign materials (e.g. -
Page 35: Pipe Bending Guidelines
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 36: Using The Stop Valve And Service Port
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 Using the stop valve and service port CAUTION Do NOT open the valves before flaring is complete. This would cause refrigerant gas leakage. -
Page 37: To Connect The Refrigerant Piping To The Outdoor Unit
Piping installation To open/close the stop valve 1 Remove the stop valve cover. 2 Insert a hexagon wrench (liquid side: 4 mm, gas side: 6 mm) into the valve stem and turn the valve stem: Counterclockwise to open Clockwise to close 3 When the stop valve CANNOT be turned any further, stop turning. -
Page 38: Checking The Refrigerant Piping
Piping installation a Liquid stop valve b Gas stop valve c Service port 2 Connect the gas refrigerant connection from the indoor unit to the gas stop valve of the outdoor unit. NOTICE It is recommended that the refrigerant piping between indoor and outdoor unit is installed in a ducting or the refrigerant piping is wrapped with finishing tape. -
Page 39: To Check For Leaks
Piping installation NOTICE ▪ Connect the vacuum pump to the service port of the gas stop valve. ▪ Make sure that the gas stop valve and liquid stop valve are firmly closed before performing the leak test or vacuum drying. 7.3.3 To check for leaks NOTICE Do NOT exceed the unit's maximum working pressure (see "PS High"... - Page 40 Piping installation g Vacuum pump h Valve caps i Service port j Gas stop valve k Liquid stop valve 1 Vacuum the system until the pressure on the manifold indicates −0.1 MPa (−1 bar). 2 Leave as is for 4-5 minutes and check the pressure: If the pressure…...
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Page 41: Charging Refrigerant
Charging refrigerant 8 Charging refrigerant In this chapter About charging refrigerant..............................About the refrigerant ................................Precautions when charging refrigerant ..........................To determine the additional refrigerant amount ........................To determine the complete recharge amount ........................To charge additional refrigerant ............................To check refrigerant piping joints for leaks after charging refrigerant ................. To fix the fluorinated greenhouse gases label ........................ -
Page 42: About The Refrigerant
Charging refrigerant NOTICE Before completely recharging, perform vacuum drying on the outdoor unit's internal refrigerant piping as well. Typical workflow – Completely recharging refrigerant typically consists of the following stages: 1 Determining how much refrigerant to charge. 2 Charging refrigerant. 3 Filling in the fluorinated greenhouse gases label, and fixing it to the inside of the outdoor unit. -
Page 43: Precautions When Charging Refrigerant
Charging refrigerant 8.3 Precautions when charging refrigerant INFORMATION Also read the precautions and requirements in the following chapters: ▪ "2 General safety precautions" [ 7] ▪ "7.1 Preparing refrigerant piping" [ 31] 8.4 To determine the additional refrigerant amount If the total liquid piping Then…... -
Page 44: To Check Refrigerant Piping Joints For Leaks After Charging Refrigerant
Charging refrigerant If pump down is needed in case of dismantling or relocating the system, see "15.2 To pump down" [ 60] for more details. 8.7 To check refrigerant piping joints for leaks after charging refrigerant 1 Perform the leak tests see "7.3 Checking the refrigerant piping" [ 38]. -
Page 45: Electrical Installation
Electrical installation 9 Electrical installation In this chapter About connecting the electrical wiring ..........................9.1.1 Precautions when connecting the electrical wiring ....................9.1.2 Guidelines when connecting the electrical wiring ....................9.1.3 Specifications of standard wiring components ..................... To connect the electrical wiring to the outdoor unit ......................9.1 About connecting the electrical wiring Before connecting the electrical wiring Make sure:... -
Page 46: 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 shock. ▪... - Page 47 Electrical installation 2 Slightly twist the end of the conductor to create a "solid-like" connection. Method 2: Using round crimp-style terminal 1 Strip insulation from wires and slightly twist the end of each wire. 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.
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Page 48: Specifications Of Standard Wiring Components
Electrical installation ▪ The earth wire between the wire retainer and the terminal must be longer than the other wires. 9.1.3 Specifications of standard wiring components Component Power supply cable Voltage 220~240 V Current RXTM30: 14.72 A RXTM40: 15.05 A RXTJ: 14.66 A RXTA: 14.83 A RXTP: 14.88 A Phase Frequency... - Page 49 Electrical installation 50 Hz 220-240 V a Interconnection cable b Power supply cable c Circuit breaker (field provided fuse with 16 A rating) d Residual current device e Power supply f Earth 4× 50 Hz 1 2 3 220~240 V 5 Tighten the terminal screws securely. We recommend using a Phillips screwdriver.
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Page 50: Finishing The Outdoor Unit Installation
Finishing the outdoor unit installation 10 Finishing the outdoor unit installation 10.1 To finish the outdoor unit installation DANGER: RISK OF ELECTROCUTION ▪ Make sure that the system is earthed properly. ▪ Turn OFF the power supply before servicing. ▪ Install the switch box cover before turning ON the power supply. -
Page 51: 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 52: Checklist Before Commissioning
Commissioning During test operation, the outdoor unit and the indoor units will start up. Make sure that the preparations of all indoor units are finished (field piping, electrical wiring, air purge, ...). See installation manual of the indoor units for details. 11.3 Checklist before commissioning 1 After the installation of the unit, check the items listed below. -
Page 53: Starting Up The Outdoor Unit
Commissioning Prerequisite: Test run may be performed in cooling or heating mode. Prerequisite: Test run should be performed in accordance with the operation manual of the indoor unit to make sure that all functions and parts are working properly. 1 In cooling mode, select the lowest programmable temperature. In heating mode, select the highest programmable temperature. -
Page 54: Hand-Over To The User
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 55: Maintenance And Service
General maintenance/inspection checklist. Next to the maintenance instructions in this chapter, a general maintenance/inspection checklist is also available on the Daikin Business Portal (authentication required). The general maintenance/inspection checklist is complementary to the instructions in this chapter and can be used as a guideline and reporting template during maintenance. -
Page 56: Overview: Maintenance And Service
Maintenance and service 13.1 Overview: Maintenance and service This chapter contains information about: ▪ Maintenance safety precautions ▪ The yearly maintenance of the outdoor unit 13.2 Maintenance safety precautions DANGER: RISK OF ELECTROCUTION DANGER: RISK OF BURNING/SCALDING WARNING ▪ Before carrying out any maintenance or repair activity, ALWAYS switch off the circuit breaker on the supply panel, remove the fuses or open the protection devices of the unit. - Page 57 Maintenance and service DANGER: RISK OF ELECTROCUTION ▪ Use this compressor on a grounded system only. ▪ Turn the power off before servicing the compressor. ▪ Reattach the switch box cover and service lid after servicing. CAUTION ALWAYS wear safety glasses and protective gloves. DANGER: RISK OF EXPLOSION ▪...
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Page 58: Troubleshooting
Troubleshooting 14 Troubleshooting 14.1 Overview: Troubleshooting This chapter describes what you have to do in case of problems. It contains information about solving problems based on symptoms. Before troubleshooting Carry out a thorough visual inspection of the unit and look for obvious defects such as loose connections or defective wiring. -
Page 59: Symptom: The Unit Is Not Heating Or Cooling As Expected
Troubleshooting 14.3.2 Symptom: The unit is NOT heating or cooling as expected Possible causes Corrective action Wrong connection of the electrical Connect the electrical wires correctly. wires Gas leakage Check for gas leakage. 14.3.3 Symptom: Water leakage Possible causes Corrective action Incomplete thermal insulation (gas and Make sure the thermal insulation of the liquid piping, indoor portions of the... -
Page 60: Disposal
Disposal 15 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. 15.1 Overview: Disposal Typical workflow Disposing of the system typically consists of the following stages:... -
Page 61: To Start And Stop Forced Cooling
Disposal a Gas stop valve b Closing direction c Hexagonal wrench d Valve cap e Liquid stop valve 15.3 To start and stop forced cooling There are 2 methods to perform forced cooling. ▪ Method 1. Using the indoor unit ON/OFF switch (if present on the indoor unit). ▪... -
Page 62: Technical Data
Technical data 16 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). 16.1 Wiring diagram The wiring diagram is delivered with the unit, located inside of the outdoor unit (bottom side of the top plate). - Page 63 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 64 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...
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Page 65: Piping Diagram
Technical data 16.2 Piping diagram 16.2.1 Piping diagram: Outdoor unit PED categories of equipment – High pressure switch: category IV; Compressor: category II; Other equipment: art. 4§3. 7CuT 7CuT 7CuT 7CuT 7CuT 7CuT 7CuT 12.7CuT 7CuT 7CuT 7CuT 7CuT 9.5CuT 7CuT 6.4CuT 7CuT... -
Page 66: 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 68 4P728168-1 2023.03 Verantwortung für Energie und Umwelt...
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