Daikin 3MXM40N2V1B8 Installer's Reference Manual
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Summary of Contents for Daikin 3MXM40N2V1B8
- Page 1 Installer reference guide R32 Split series 2MXM68N2V1B 4MXM68N2V1B9 5MXM90N2V1B9 3AMXF52A2V1B9 4MXM80N2V1B9 3MXF52A2V1B9 3MXM40N2V1B9 3MXF68A2V1B9 3MXM40N2V1B8 3MXM52N2V1B9 3MXM52N2V1B8 3MXM68N2V1B9 3AMXM52N2V1B9...
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Page 2: Table Of Contents
Table of contents Table of contents 1 About the documentation About this document ..............................2 General safety precautions About the documentation .............................. 2.1.1 Meaning of warnings and symbols ........................ For the installer ................................2.2.1 General ................................2.2.2 Installation site ............................... 2.2.3 Refrigerant —... - Page 3 Table of contents To determine the complete recharge amount ......................49 To charge additional refrigerant............................. 50 To fix the fluorinated greenhouse gases label ....................... 50 9 Electrical installation About connecting the electrical wiring .......................... 51 9.1.1 Precautions when connecting the electrical wiring..................51 9.1.2 Guidelines when connecting the electrical wiring..................
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Page 4: About The Documentation
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). -
Page 5: General Safety Precautions
General safety precautions 2 General safety precautions 2.1 About the documentation ▪ The original documentation is written in English. All other languages are translations. ▪ The precautions described in this document cover very important topics, follow them carefully. ▪ The installation of the system, and all activities described in the installation manual and in the installer reference guide MUST be performed by an authorised installer. -
Page 6: For The Installer
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). -
Page 7: Installation Site
General safety precautions WARNING Provide adequate measures to prevent that the unit can be used as a shelter by small animals. Small animals that make contact with electrical parts can cause malfunctions, smoke or fire. CAUTION Do NOT touch the air inlet or aluminium fins of the unit. CAUTION ▪... - Page 8 WARNING Make sure installation, servicing, maintenance and repair comply with instructions from Daikin and with applicable legislation (for example national gas regulation) and are executed only by authorised persons. WARNING If one or more rooms are connected to the unit using a duct system, make sure: ▪...
- Page 9 General safety precautions NOTICE ▪ Do NOT re-use joints which have been used already. ▪ Joints made in installation between parts of refrigerant system shall be accessible for maintenance purposes. Installation space requirements WARNING If appliances contain R32 refrigerant, the floor area of the room in which the appliances are installed, operated and stored MUST be larger than the minimum floor area defined in table below A (m ).
- Page 10 General safety precautions m (kg) 1.843 7.956 Ceiling-mounted Wall-mounted Floor-standing unit unit unit m (kg) m (kg) m (kg) ≤1.842 — ≤1.842 — ≤1.842 — 1.843 3.64 1.843 4.45 1.843 28.9 4.83 34.0 3.95 4.34 5.31 41.2 5.79 49.0 4.74 5.13 6.39 57.5...
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Page 11: Refrigerant - In Case Of R410A Or R32
General safety precautions (b) Wall-mounted unit (= Wall-mounted unit) (c) Floor-standing unit (= Floor-standing unit) 2.2.3 Refrigerant — in case of R410A or R32 If applicable. See the installation manual or installer reference guide of your application for more information. NOTICE Make sure refrigerant piping installation complies with applicable legislation. -
Page 12: Brine
General safety precautions WARNING Make sure there is no oxygen in the system. Refrigerant may only be charged after performing the leak test and the vacuum drying. Possible consequence: Self-combustion and explosion of the compressor because of oxygen going into the operating compressor. ▪... -
Page 13: Water
General safety precautions WARNING The ambient temperature inside the unit can get much higher than that of the room, e.g. 70°C. In case of a brine leak, hot parts inside the unit can create a hazardous situation. WARNING The use and installation of the application MUST comply with the safety and environmental precautions specified in the applicable legislation. - Page 14 General safety precautions WARNING ▪ ONLY use copper wires. ▪ Make sure the field wiring complies with the applicable legislation. ▪ 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 15 General safety precautions WARNING ▪ 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. NOTICE Only applicable if the power supply is three‑phase, and the compressor has an ON/ OFF starting method.
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Page 16: Specific Installer Safety Instructions
Specific installer safety instructions 3 Specific installer safety instructions Always observe the following safety instructions and regulations. Unit installation (see "6 Unit installation" [ 25]) WARNING Installation shall be done by an installer, the choice of materials and installation shall comply with the applicable legislation. In Europe, EN378 is the applicable standard. "6.1 Preparing the installation site" [ 25]) - Page 17 Specific installer safety instructions WARNING ▪ Only use R32 as refrigerant. Other substances may cause explosions and accidents. ▪ R32 contains fluorinated greenhouse gases. Its global warming potential (GWP) value is 675. Do NOT vent these gases into the atmosphere. ▪...
- Page 18 Specific installer safety instructions WARNING ▪ Only use R32 as refrigerant. Other substances may cause explosions and accidents. ▪ R32 contains fluorinated greenhouse gases. Its global warming potential (GWP) value is 675. Do NOT vent these gases into the atmosphere. ▪...
- Page 19 Specific installer safety instructions WARNING ▪ Do NOT use locally purchased electrical parts inside the product. ▪ Do NOT branch the power supply for the drain pump, etc. from the terminal block. 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.
- Page 20 Specific installer safety instructions 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 goggles and protective gloves. DANGER: RISK OF EXPLOSION ▪...
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Page 21: About The Box
About the box 4 About the box 4.1 Overview: About the box This chapter describes what you have to do after the boxes with the outdoor and indoor unit are delivered on-site. Keep the following in mind: ▪ At delivery, the unit MUST be checked for damage. Any damage MUST be reported immediately to the claims agent of the carrier. -
Page 22: To Remove The Accessories From The Outdoor Unit
About the box 4.2.2 To remove the accessories from the outdoor unit 1 Lift the outdoor unit. CAUTION Only handle the outdoor unit as follows: 2 Remove the accessories at the bottom of the package. 1× 1× 1× 1× 1× 1×... - Page 23 About the box Outdoor unit installation manual General safety precautions Fluorinated greenhouse gases label Multilingual fluorinated greenhouse gases label Drain socket Screw bag. The screws will be used for fixing the electrical wire anchor bands. Drain cap (small) Drain cap (large) Reducer assembly Energy label 2MXM68+3(A)MXM+3(A)MXF+4MXM+5MXM...
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Page 24: About The Unit
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 Overview: About the unit This chapter contains information about: 5.2 Identification... -
Page 25: 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 26: Installation Site Requirements Of The Outdoor Unit
Unit installation WARNING The appliance shall be stored in a room without continuously operating ignition sources (example: open flames, an operating gas appliance or an operating electric heater). 6.1.1 Installation site requirements of the outdoor unit INFORMATION Also read the following requirements: ▪... - Page 27 Unit installation Baffle plate Prevailing wind direction 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 28: Additional Installation Site Requirements Of The Outdoor Unit In Cold Climates
Unit installation Sea wind Building Outdoor unit 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 –15~24°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 29: 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 30: 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" [ 5] ▪ "6.1 Preparing the installation site" [ 25] 6.3.3 To provide the installation structure Check the strength and level of the installation ground so that the unit will not cause any operating vibration or noise. -
Page 31: 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 32: 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 f) and (accessory g). Make sure the edges of the drain caps close off the holes completely. 2 Install the drain socket. Drain hole. Install a drain cap (large). Drain hole. -
Page 33: 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 34: Refrigerant Piping Insulation
Piping installation 4MXM80 Gas piping 1× Ø9.5 mm (3/8") 1× Ø12.7 mm (1/2") 2× Ø15.9 mm (5/8") 5MXM90 Liquid piping 5× Ø6.4 mm (1/4") Gas piping 2× Ø9.5 mm (3/8") 1× Ø12.7 mm (1/2") 2× Ø15.9 mm (5/8") ▪ Piping temper grade and thickness: Outer diameter (Ø) Temper grade Thickness (t) Ø... -
Page 35: Refrigerant Piping Length And Height Difference
Piping installation 7.1.3 Refrigerant piping length and height difference INFORMATION For the Hybrid for Multi application and the DHW generator for Multi, see the indoor unit installation manual for the maximum allowable 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. -
Page 36: Connecting The Refrigerant Piping
Piping installation 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: ð... - Page 37 Piping installation DANGER: RISK OF BURNING/SCALDING CAUTION ▪ Do NOT use mineral oil on flared part. ▪ 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.
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Page 38: Guidelines When Connecting The Refrigerant Piping
Piping installation WARNING Connect the refrigerant piping securely before running the compressor. If the refrigerant piping is NOT connected and the stop valve is open when the compressor is run, air will be sucked in. This will cause abnormal pressure in the refrigeration cycle, which may result in equipment damage and even injury. -
Page 39: To Flare The Pipe End
Piping installation 7.2.5 To flare the pipe end CAUTION ▪ Incomplete flaring may cause refrigerant gas leakage. ▪ Do NOT re-use flares. Use new flares to prevent refrigerant gas leakage. ▪ Use flare nuts that are included with the unit. Using different flare nuts may cause refrigerant gas leakage. - Page 40 Piping installation Outdoor unit Total indoor unit capacity class 3MXM52, 3AMXM52, 3MXF52, ≤9.0 kW 3AMXF52 3MXM68, 4MXM68, 3MXF68 ≤11.0 kW 4MXM80 ≤14.5 kW 5MXM90 ≤15.6 kW Port Class Reducer 2MXM68 A (Ø9.5 mm) 15, 20, 25, 35, (42) — B (Ø12.7mm) 15, 20, 25, 35, (42) 42, 50, 60 —...
- Page 41 Piping installation Port Class Reducer C (Ø12.7mm) 15, 20, 25, 35, (42) 42, 50, 60 — D + E (Ø15.9 mm) 15, 20, 25, 35, (42) 42, 50, 60 — Only in case of connection with FTXM42R. Reducer type Connection Ø15.9 mm → Ø12.7 mm Ø12.7 mm →...
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Page 42: Using The Stop Valve And Service Port
Piping installation Inter-unit piping Coat the threaded connection port of the outdoor unit where the flare nut comes in with refrigeration oil. Flare nut for (mm) Tightening torque (N•m) Ø9.5 33~39 Ø12.7 50~60 Ø15.9 62~75 NOTICE Use an appropriate wrench to avoid damaging the connection thread by overtightening the flare nut. -
Page 43: 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 44: Checking The Refrigerant Piping
Piping installation Liquid stop valve Gas stop valve 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 45: 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 46 Piping installation 2 Leave as is for 4-5 minutes and check the pressure: If the pressure… Then… Does not change There is no moisture in the system. This procedure is finished. Increases There is moisture in the system. Go to the next step. 3 Vacuum the system for at least 2 ...
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Page 47: 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 ........................8.1 About charging refrigerant The outdoor unit is factory charged with refrigerant, but in some cases the following might be necessary:... -
Page 48: 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 49: 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" [ 5] ▪ "7.1 Preparing refrigerant piping" [ 33] 8.4 To determine the additional refrigerant amount If the total liquid piping Then…... -
Page 50: To Charge Additional Refrigerant
Charging refrigerant 8.6 To charge additional refrigerant WARNING ▪ Only use R32 as refrigerant. Other substances may cause explosions and accidents. ▪ R32 contains fluorinated greenhouse gases. Its global warming potential (GWP) value is 675. Do NOT vent these gases into the atmosphere. ▪... -
Page 51: 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 Typical workflow Connecting the electrical wiring typically consists of the following stages:... - Page 52 Electrical installation WARNING ▪ All wiring MUST be performed by an authorised electrician and MUST comply with the applicable legislation. ▪ Make electrical connections to the fixed wiring. ▪ All components procured on-site and all electrical construction MUST comply with the applicable legislation. WARNING ▪...
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Page 53: Guidelines When Connecting The Electrical Wiring
Electrical installation DANGER: RISK OF ELECTROCUTION Disconnect the power supply for more than 10 minutes, and measure the voltage at the terminals of main circuit capacitors or electrical components before servicing. The voltage MUST be less than 50 V DC before you can touch electrical components. For the location of the terminals, see the wiring diagram. -
Page 54: 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 55: To Connect The Electrical Wiring To The Outdoor Unit
Electrical installation Model 4MXM80 3- core cable 4.0 mm 25 A H07RN-F (60245 IEC 66) 5MXM90 32 A 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. - Page 56 Electrical installation 9 Make sure the electrical wiring does not contact with the gas piping. 1 2 3 2× 1 2 3 Wire retainer 10 Reattach the switch box cover and the service cover. 2MXM68+3(A)MXM+3(A)MXF+4MXM+5MXM Installer reference guide R32 Split series 4P600463-1C –...
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Page 57: 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 58: Configuration
Configuration 11 Configuration In this chapter 11.1 About standby electricity saving function..........................11.1.1 To turn on standby electricity saving function ...................... 11.2 About priority room function ..............................11.2.1 To set the priority room function .......................... 11.3 About night quiet mode ................................. 11.3.1 To turn on the night quiet mode ........................... -
Page 59: 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 60: 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 61 Configuration 4× VHR-5N SVH-21T-1 2MXM68+3(A)MXM+3(A)MXF+4MXM+5MXM Installer reference guide R32 Split series 4P600463-1C – 2020.08...
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Page 62: Commissioning
Commissioning 12 Commissioning In this chapter 12.1 Overview: Commissioning ..............................12.2 Precautions when commissioning............................12.3 Checklist before commissioning............................. 12.4 Checklist during commissioning ............................. 12.5 Trial operation and testing ..............................12.5.1 About wiring error check ............................12.5.2 To perform a test run............................. 12.6 Starting up the outdoor unit .............................. -
Page 63: Checklist During Commissioning
Commissioning The power supply voltage matches the voltage on the identification label of the unit. There are NO loose connections or damaged electrical components in the switch box. There are NO damaged components or squeezed pipes on the inside of the indoor and outdoor units. -
Page 64: About Wiring Error Check
Commissioning 12.5.1 About wiring error check The wiring error check function will check and automatically correct any wiring errors. This is useful for checking wiring that CANNOT be checked directly, such as underground wiring. This function CANNOT be used within 3 minutes after activating the safety breaker or when the outside air temperature is ≤5°C. -
Page 65: To Perform A Test Run
Commissioning 12.5.2 To perform a test run Prerequisite: Power supply MUST be in the specified range. Prerequisite: Test run operation may be done in cooling or heating mode. Prerequisite: Test run should be done in accordance with the operation manual of the indoor unit to make sure that all functions and parts are working properly. -
Page 66: 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, please 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 67: Maintenance And Service
Maintenance and service 14 Maintenance and service NOTICE Maintenance MUST be done by an authorized installer or service agent. We recommend performing maintenance at least once a year. However, applicable legislation might require shorter maintenance intervals. NOTICE Applicable legislation on fluorinated greenhouse gases requires that the refrigerant charge of the unit is indicated both in weight and CO equivalent. -
Page 68: About The Compressor
Maintenance and service ▪ Heat exchanger The heat exchanger of the outdoor unit can get blocked up due to dust, dirt, leaves, etc. It is recommended to clean the heat exchanger yearly. A blocked heat exchanger can lead to too low pressure or too high pressure leading to worse performance. -
Page 69: 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 70: Symptom: The Unit Is Not Heating Or Cooling As Expected
Troubleshooting 15.3.2 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. Marks on the wiring and piping do NOT Marks on the wiring and piping (room A, match room B, room C, room D, room E) for... -
Page 71: Solving Problems Based On Led Behaviour
Troubleshooting 15.4 Solving problems based on LED behaviour 15.4.1 Fault diagnosis using LED on outdoor unit PCB DANGER: RISK OF ELECTROCUTION ▪ When the unit is not operating, the LEDs on the PCB are turned off in order to save power. ▪... - Page 72 Troubleshooting Green LED-A Diagnosis Turn the power OFF and back ON, and check the LED within approximately 3 minutes. If the LED is ON again, the outdoor unit PCB is faulty. Power supply fault. Diagnosis may not apply to some cases. For more details, refer to the service manual. 2MXM68+3(A)MXM+3(A)MXF+4MXM+5MXM Installer reference guide R32 Split series...
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Page 73: 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 74: To Start And Stop Forced Cooling
Disposal 3 After 5 to 10 minutes (after only 1 or 2 minutes in case of very low ambient temperatures (<−10°C)), close the liquid stop valve with a hexagonal wrench. 4 Check on the manifold if the vacuum is reached. 5 After 2-3 minutes, close the gas stop valve and stop forced cooling. Gas stop valve Closing direction Hexagonal wrench... - Page 75 Disposal 1× 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. 2MXM68+3(A)MXM+3(A)MXF+4MXM+5MXM Installer reference guide R32 Split series...
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Page 76: Technical Data
Technical data 17 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). 17.1 Wiring diagram 17.1.1 Unified wiring diagram legend... - Page 77 Technical data Symbol Meaning 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 78: Piping Diagram: Outdoor Unit
Technical data Symbol Meaning 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* Operation switch SA*, F1S... - Page 79 Technical data ▪ Other components: refer to PED article 4, paragraph 3 NOTICE When the high pressure switch is activated, it MUST be reset by a qualified person. 2MXM68 7.9CuT 7.9CuT 6.4CuT (6.4CuT) 7.9CuT 7.9CuT 12.7CuT 7.9CuT 7.9CuT 6.4CuT 9.5CuT (6.4CuT) 7.9CuT 9.5CuT...
- Page 80 Technical data 3MXM40, 3MXM52, 3AMXM52, 3AMXF52, 3MXF52 7.9CuT 7.9CuT 6.4CuT 7.9CuT (6.4CuT) 7.9CuT 12.7CuT 7.9CuT 7.9CuT 6.4CuT 9.5CuT (6.4CuT) 7.9CuT 9.5CuT 7.9CuT 6.4CuT 9.5CuT (6.4CuT) 12.7CuT 9.5CuT 12.7CuT 15.9CuT 12.7CuT (9.5CuT) 9.5CuT 12.7CuT (12.7CuT) 12.7CuT (12.7CuT) 15.9CuT 12.7CuT 3MXM68, 3MXF68 7.9CuT 7.9CuT 6.4CuT...
- Page 81 Technical data 4MXM68 7.9CuT 7.9CuT 6.4CuT (6.4CuT) 7.9CuT 7.9CuT 12.7CuT 7.9CuT 6.4CuT 7.9CuT 9.5CuT (6.4CuT) 7.9CuT 9.5CuT 7.9CuT 6.4CuT (6.4CuT) 7.9CuT 6.4CuT 6.4CuT 9.5CuT (6.4CuT) 9.5CuT 9.5CuT 12.7CuT 12.7CuT 15.9CuT 12.7CuT 15.9CuT 9.5CuT 12.7CuT (9.5CuT) 9.5CuT 12.7CuT (9.5CuT) 12.7CuT (12.7CuT) 15.9CuT 12.7CuT (12.7CuT)
- Page 82 Technical data 5MXM90 7.9CuT 7.9CuT 7.9CuT 6.4CuT 9.5CuT (6.4CuT) 7.9CuT 9.5CuT 7.9CuT 6.4CuT 7.9CuT (6.4CuT) 7.9CuT 12.7CuT 7.9CuT 7.9CuT 6.4CuT 7.9CuT 9.5CuT 7.9CuT (6.4CuT) 9.5CuT 7.9CuT 7.9CuT 7.9CuT 6.4CuT 6.4CuT 9.5CuT (6.4CuT) 9.5CuT 7.9CuT 6.4CuT (6.4CuT) 12.7CuT 9.5CuT 12.7CuT 15.9CuT 12.7CuT 15.9CuT 9.5CuT...
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Page 83: 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 84 4P600463-1C 2020.08 Verantwortung für Energie und Umwelt...
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