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Related Manuals for Daikin 5MWXM90A2V1B9
Summary of Contents for Daikin 5MWXM90A2V1B9
- Page 1 Installer reference guide R32 Split series 5MWXM68A2V1B9 5MWXM90A2V1B9...
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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......................2.1.4 Electrical................................. - Page 3 Table of contents To check refrigerant piping joints for leaks after charging refrigerant................. 9 Electrical installation 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 ....................
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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
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). 1.1.1 Meaning of warnings and symbols DANGER Indicates a situation that results in death or serious injury. - Page 6 About the documentation Symbol Explanation For more information, see the installer and user reference guide. The unit contains rotating parts. Be careful when servicing or inspecting the unit. Symbols used in the documentation: Symbol Explanation Indicates a figure title or a reference to it. Example: "...
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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 (for example national gas regulation) and are executed ONLY by authorised persons. 5MWXM-A9 Installer reference guide R32 Split series 4P766272-3B –... -
Page 9: Installation Space Requirements
General safety precautions WARNING ▪ Take precautions to avoid excessive vibration or pulsation to refrigeration piping. ▪ Protect the protection devices, piping and fittings as much as possible against adverse environmental effects. ▪ Provide space for expansion and contraction of long runs of piping. ▪... - 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 ▪ In case recharge is required, see the nameplate or the refrigerant charge label of the unit. It states the type of refrigerant and necessary amount. ▪ 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. - Page 13 General safety precautions WARNING ▪ ONLY use copper wires. ▪ Make sure the field wiring complies with the national wiring regulations. ▪ All field wiring MUST be performed in accordance with the wiring diagram supplied with the product. ▪ NEVER squeeze bundled cables and make sure they do NOT come in contact with the piping and sharp edges.
- Page 14 General safety precautions NOTICE ONLY applicable if the power supply is three‑phase, and the compressor has an ON/ OFF starting method. If there exists the possibility of reversed phase after a momentary black out and the power goes ON and OFF while the product is operating, attach a reversed phase protection circuit locally.
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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" [ 20]) CAUTION To avoid injury, do NOT touch the air inlet or aluminium fins of the unit. CAUTION ONLY handle the outdoor unit as follows: Unit installation (see... - Page 16 Specific installer safety instructions DANGER: RISK OF BURNING/SCALDING DANGER: RISK OF ELECTROCUTION Piping installation (see "7 Piping installation" [ 31]) CAUTION Piping and joints of a split system shall be made with permanent joints when inside an occupied space except joints directly connecting the piping to the indoor units. CAUTION ▪...
- Page 17 Specific installer safety instructions WARNING ▪ The refrigerant inside the unit is mildly flammable, but normally does NOT leak. If the refrigerant leaks in the room and comes in contact with fire from a burner, a heater, or a cooker, this may result in fire, or the formation of a harmful gas. ▪...
- Page 18 Specific installer safety instructions 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. WARNING Do NOT connect the power supply to the indoor unit. This could result in electrical shock or fire.
- 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.
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Page 20: 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 21: To Remove The Accessories From The Outdoor Unit
About the box CAUTION ONLY handle the outdoor unit as follows: NOTICE ▪ Place the unit on a flat surface. ▪ Make sure the aluminium fins on the unit are straight before installation. If not, straighten them with a fin comb (field supply). 4.1.3 To remove the accessories from the outdoor unit 1 Lift the outdoor unit. -
Page 22: About The Unit
WARNING: MILDLY FLAMMABLE MATERIAL The refrigerant inside this unit is mildly flammable. INFORMATION For the operation limits see the latest technical data of the outdoor unit on the regional Daikin website (publicly accessible). 5.1 Identification 5.1.1 Identification label: Outdoor unit Location... -
Page 23: 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 24: Installation Site Requirements Of The Outdoor Unit
Unit installation 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. 6.1.1 Installation site requirements of the outdoor unit INFORMATION Also read the following requirements:... - Page 25 Unit installation ▪ a broken fan (if a strong wind blows continuously on the fan, it may start rotating very fast, until it breaks). It is recommended to install a baffle plate when the air outlet is exposed to wind. It is recommended to install the outdoor unit with the air inlet facing the wall and NOT directly exposed to the wind.
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Page 26: Additional Installation Site Requirements Of The Outdoor Unit In Cold Climates
Unit installation a Sea wind b Building c Outdoor unit If the outdoor unit is exposed to direct sea winds, install a windbreaker. ▪ Height of windbreaker ≥1.5× height of outdoor unit ▪ Mind the service space requirements when installing the windbreaker. a Sea wind b Building c Outdoor unit... -
Page 27: Opening The Unit
Unit installation It is recommended to provide at least 150 mm of free space below the unit (300 mm for heavy snowfall areas). Additionally, make sure the unit is positioned at least 100 mm above the maximum expected level of snow. If necessary, construct a pedestal. -
Page 28: Precautions When Mounting The Outdoor Unit
Unit installation Typical workflow Mounting the outdoor unit typically consists of the following stages: Providing the installation structure. Installing the outdoor unit. Providing drainage. Protecting the unit against snow and wind by installing a snow cover and baffle plates. See "6.1 Preparing the installation site" [ 23]. -
Page 29: To Install The Outdoor Unit
Unit installation 6.3.4 To install the outdoor unit 4× M8/M10 6.3.5 To provide drainage ▪ Make sure that condensation water can be evacuated properly. ▪ Install the unit on a base to make sure that there is proper drainage in order to avoid ice accumulation. -
Page 30: To Prevent The Outdoor Unit From Falling Over
Unit installation To close the drain holes and attach the drain socket 1 Install drain caps (accessory h) and (accessory g). Make sure the edges of the drain caps close off the holes completely. 2 Install the drain socket. a Drain hole. Install a drain cap (large). b Drain hole. -
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 5MWXM90A2V1B9 Liquid piping Gas piping 5× Ø6.4 mm (1/4") 1× Ø9.5 mm (3/8") 1× Ø12.7 mm (1/2") 3× Ø15.9 mm (5/8") INFORMATION Usage of reducers might be required based on the indoor unit. See "7.2.6 Connections between outdoor and indoor unit using reducers" ... -
Page 33: Refrigerant Piping Length And Height Difference
Piping installation 7.1.3 Refrigerant piping length and height difference The shorter the refrigerant piping, the better the performance of the system. The piping length and height differences must comply with the following requirements. Shortest allowable length per room is 3 m. For combination…... -
Page 34: Connecting The Refrigerant Piping
Piping installation 1× 7.2 Connecting the refrigerant piping 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 35: Precautions When Connecting The Refrigerant Piping
Piping installation 7.2.2 Precautions when connecting the refrigerant piping INFORMATION Also read the precautions and requirements in the following chapters: ▪ "2 General safety precautions" [ 7] ▪ "7.1 Preparing refrigerant piping" [ 31] DANGER: RISK OF BURNING/SCALDING NOTICE ▪ Use the flare nut fixed to the main unit. ▪... -
Page 36: Guidelines When Connecting The Refrigerant Piping
Piping installation 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 NOTICE Do NOT open the refrigerant stop valve before checking the refrigerant piping. When you need to charge additional refrigerant it is recommended to open the refrigerant stop valve after charging. -
Page 37: Pipe Bending Guidelines
Piping installation 7.2.4 Pipe bending guidelines Use a pipe bender for bending. All pipe bends should be as gentle as possible (bending radius should be 30~40 mm or larger). 7.2.5 To flare the pipe end CAUTION ▪ Incomplete flaring may cause refrigerant gas leakage. ▪... - Page 38 Piping installation 5MWXM68 Port Dimensions Class Reducer Liquid Ø6.4 mm 12, 20, 25, 35, 42 — Gas Ø9.5 mm Liquid Ø6.4 mm 12, 20, 25, 35, 42 Gas Ø12.7 mm , 50, 60 — , 100 Use option ASYCPIR–MD1 Tank Liquid Ø6.4 mm 90, 120 Field supply Gas Ø15.9 mm 180, 230...
- Page 39 Piping installation Reducer type Connection Ø12.7 mm → Ø9.5 mm Ø15.9 mm → Ø9.5 mm Ø15.9 mm → Ø9.5 mm Connection examples: ▪ Connecting a Ø12.7 mm pipe to a Ø15.9 mm gas pipe connection port Ø15.9 mm Ø12.7 mm a Outdoor unit connection port b Reducer no. 1 c Reducer no.
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Page 40: Using The Stop Valve And Service Port
Piping installation 7.2.7 Using the stop valve and service port CAUTION Do NOT open the valves before flaring is complete. This would cause refrigerant gas leakage. To handle the stop valve Take the following guidelines into account: ▪ The stop valves are factory closed. ▪... -
Page 41: To Connect The Refrigerant Piping To The Outdoor Unit
Piping installation To handle the stem cap ▪ The stem cap is sealed where indicated with the arrow. Do NOT damage it. ▪ After handling the stop valve, tighten the stem cap, and check for refrigerant leaks. Stem cap Width across flats Tightening torque (N∙m) (mm) DX connection... -
Page 42: To Install Sound Insulation
Piping installation 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. 7.2.9 To install sound insulation After connecting piping, mount sound insulation (accessory k) on the outdoor unit using two screws (accessory l) as it is shown in picture below. -
Page 43: To Check For Leaks
Piping installation NOTICE Use this vacuum pump for R32 exclusively. Using the same pump for other refrigerants may damage the pump and the unit. 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. - Page 44 Piping installation g Service port h Valve caps i Gas stop valve j Liquid stop valve NOTICE Connect the vacuum pump to both the service ports of the gas stop valves. 1 Vacuum the system until the pressure on the manifold indicates −0.1 MPa (−1 bar).
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Page 45: 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 fix the fluorinated greenhouse gases label........................To check refrigerant piping joints for leaks after charging refrigerant ................. -
Page 46: About The Refrigerant
Charging refrigerant 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. 8.2 About the refrigerant This product contains fluorinated greenhouse gases. -
Page 47: Precautions When Charging Refrigerant
Charging refrigerant NOTICE Applicable legislation on fluorinated greenhouse gases requires that the refrigerant charge of the unit is indicated both in weight and CO equivalent. Formula to calculate the quantity in CO equivalent tonnes: GWP value of the refrigerant × total refrigerant charge [in kg]/1000 Contact your installer for more information. -
Page 48: To Determine The Complete Recharge Amount
Charging refrigerant 8.5 To determine the complete recharge amount INFORMATION If a complete recharge is necessary, the total refrigerant charge is: the factory refrigerant charge (see unit name plate) + the determined additional amount. 8.6 To charge additional refrigerant WARNING ▪... -
Page 49: To Check Refrigerant Piping Joints For Leaks After Charging Refrigerant
Charging refrigerant NOTICE Applicable legislation on fluorinated greenhouse gases requires that the refrigerant charge of the unit is indicated both in weight and CO equivalent. Formula to calculate the quantity in CO equivalent tonnes: GWP value of the refrigerant × total refrigerant charge [in kg] / 1000 Use the GWP value mentioned on the refrigerant charge label. -
Page 50: 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 the refrigerant piping is connected and checked. - Page 51 Electrical installation WARNING 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 "9.1.3 Specifications of standard wiring components" [ 53]. WARNING ▪ If the power supply has a missing or wrong N-phase, equipment might break down.
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Page 52: Guidelines When Connecting The Electrical Wiring
Electrical installation 9.1.2 Guidelines when connecting the electrical wiring NOTICE We recommend using solid (single-core) wires. If stranded wires are used, slightly twist the strands to consolidate the end of the conductor for either direct use in the terminal clamp or insertion in a round crimp-style terminal. To prepare stranded conductor wire for installation Method 1: Twisting conductor 1 Strip insulation (20 mm) from the wires. -
Page 53: Specifications Of Standard Wiring Components
Electrical installation Wire type Installation method Stranded conductor wire with round crimp-style terminal a Terminal b Screw c Flat washer Allowed NOT allowed Tightening torques Item Tightening torque (N•m) M4 (X1M) M4 (earth) ▪ The earth wire between the wire retainer and the terminal must be longer than the other wires. -
Page 54: To Connect The Electrical Wiring To The Outdoor Unit
Electrical installation Electrical equipment must comply with EN/IEC 61000-3-12, the European/ International Technical Standard setting the limits for harmonic currents produced by equipment connected to public low-voltage systems with input current >16 A and ≤75 A per phase. 9.2 To connect the electrical wiring to the outdoor unit 1 Remove the switch box cover (1 screw). - Page 55 Electrical installation 9 Make sure that the electrical wiring does NOT make contact with the gas piping. 1 2 3 1 2 3 a Terminal for indoor unit A b Terminal for indoor unit B c Terminal for indoor unit C d Terminal for indoor unit D e Terminal for DHW tank f Power supply terminal...
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Page 56: 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 57: Configuration
Configuration 11 Configuration INFORMATION Following field settings are applicable only for direct expansion indoor units (DX). For the DHW tank field setting, refer to the installation manual of the DHW tank. In this chapter 11.1 About standby electricity saving function..........................11.1.1 To turn ON standby electricity saving function..................... -
Page 58: About Priority Room Function
Configuration 11.2 About priority room function INFORMATION ▪ The priority room function requires initial settings to be made during the installation of the unit. Ask the customer in which rooms he plans to use this function and make the necessary settings during installation. ▪... -
Page 59: About Heat Mode Lock
Configuration 1× 2 Set the night quiet mode switch (SW6-1) to ON. 11.4 About heat mode lock Heat mode lock limits the unit to heat operation. 11.4.1 To turn ON heat mode lock 1 Remove the switch cover on the service PCB. 2 Set the heat mode lock switch (SW5-1) to ON. -
Page 60: Commissioning
12 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 61: Checklist Before Commissioning
Commissioning INFORMATION In the case of an outdoor unit and tank-only connection, the backup heater may be used instead of the heat pump during cold outdoor conditions. This can occur within the first 7 hours after the power supply is turned on to ensure reliable compressor operation. -
Page 62: Trial Operation And Testing
Commissioning 12.5 Trial operation and testing Before starting the test run, measure the voltage at the primary side of the safety breaker. The piping and wiring work match. The stop valves (gas and liquid) on the outdoor unit are fully open. Initialization of the Multi system can take several minutes depending on the number of indoor units and options used. -
Page 63: To Perform A Test Run
Commissioning INFORMATION ▪ The number of LEDs displayed depends on the number of rooms. ▪ The wiring error check function will NOT work if outside temperature is ≤5°C and if water temperature in DHW tank is ≥20°C. ▪ After wiring error check operation is completed, LED indication will continue until normal operation starts. -
Page 64: Starting Up The Outdoor Unit
Commissioning INFORMATION ▪ Even if the unit is turned OFF, it consumes electricity. ▪ When the power turns back on after a power break, the previously selected mode will be resumed. 12.6 Starting up the outdoor unit See the indoor unit installation manual for configuration and commissioning of the system. -
Page 65: Hand-Over To The User
Hand-over to the user 13 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 66: 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 67: Checklist For Yearly Maintenance Of The Outdoor Unit
Maintenance and service 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 68: Troubleshooting
Troubleshooting 15 Troubleshooting 15.1 Overview: Troubleshooting This chapter describes what you have to do in case of problems. It contains information about: ▪ solving problems based on symptoms ▪ solving problems based on LED behaviour Before troubleshooting Carry out a thorough visual inspection of the unit and look for obvious defects such as loose connections or defective wiring. -
Page 69: Symptom: Water Leakage
Troubleshooting Possible causes Corrective action Gas leakage. Check for gas leakage. Marks on the wiring and piping do NOT Marks on the wiring and piping (room A, match. room B, room C, room D, TO TANK ) for each indoor unit MUST match. 15.3.3 Symptom: Water leakage Possible causes Corrective action... - Page 70 Troubleshooting Symbol LED is... Flashing Red LED Diagnosis Normal. ▪ Check the indoor unit. High-pressure protector worked or freeze-up in operating unit, or stand-by unit. Overload relay worked or high discharge pipe temperature. Faulty compressor start. Input over-current. Thermistor or CT abnormality. High temperature switch box.
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Page 71: Disposal
Disposal 16 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. 16.1 Overview: Disposal Typical workflow Disposing of the system typically consists of the following stages:... -
Page 72: To Start And Stop Forced Cooling
Disposal 5 After 2-3 minutes, close the both gas stop valves and stop forced cooling. a Gas stop valve b Closing direction c Hexagonal wrench d Valve cap e Liquid stop valve 16.3 To start and stop forced cooling 1 Turn OFF the power, remove the service cover and the switch box cover and the service PCB switch cover. - Page 73 Disposal NOTICE Take care that while running forced cooling operation, the water temperature remains higher than 5°C (see temperature read out of the indoor unit). You can achieve this, for example, by activating all fans of the fan coil units. 5MWXM-A9 Installer reference guide R32 Split series...
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Page 74: Technical Data
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). 17.1 Wiring diagram The wiring diagram is delivered with the unit, located inside of the outdoor unit (bottom side of the top plate). - Page 75 Technical data Symbol Meaning 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) Harness H*P, LED*, V*L...
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Page 76: Piping Diagram: Outdoor Unit
Technical data Symbol Meaning 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 S*RH Humidity sensor S*W, SW*... - Page 77 Technical data ▪ Accumulator: category II ▪ Other components: refer to PED article 4, paragraph 3 5MWXM68 v -A v -B v -C v -D v -W v -A v -B v -C v -D 5MWXM90 a Heat exchanger k 4-way valve u Thermistor (gas) b Outdoor air temperature l Muffler...
- Page 78 Technical data d Refnet header n Compressor x Field piping – gas e Fan motor o Accumulator y Twin-branched muffler f Propeller fan p Gas stop valve z Liquid reciver g Capillary tube q Liquid stop valve PS Pressure sensor h Distributor r Electronic expansion valve HPS High pressure switch...
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Page 79: 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 80 4P766272-3B 2025.02...
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