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Piping installation

Installer reference guide

(A)RXF20~42C5V1B
R32 split series
4P519439-10J – 2021.06

What?

Distance

Minimum allowable pipe length

1.5 m

Maximum allowable height difference

12 m

7.1.3 Refrigerant piping insulation

▪

Use polyethylene foam as insulation material:

with a heat transfer rate between 0.041 and 0.052 W/mK (0.035 and
0.045 kcal/mh°C)

with a heat resistance of at least 120°C

▪

Insulation thickness

Pipe outer diameter (Ø

) Insulation inner diameter

(Ø

)

Insulation thickness (t)

6.4 mm (1/4")

8~10 mm

≥10 mm

9.5 mm (3/8")

12~15 mm

If the temperature is higher than 30°C and the humidity is higher than RH 80%, the
thickness of the insulation materials should be at least 20 mm to prevent
condensation on the surface of the insulation.

7.2 Connecting the refrigerant piping

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

▪

Insulating the refrigerant piping

▪

Keeping in mind the guidelines for:

Pipe bending

Flaring pipe ends

Using the stop valves

7.2.2 Precautions when connecting the refrigerant piping

INFORMATION

Also read the precautions and requirements in the following chapters:

▪

General safety precautions

▪

Preparation

Содержание ARXF20C5V1B

Страница 1: ...Installer reference guide R32 split series RXF20C5V1B RXF25C5V1B RXF35C5V1B RXF42C5V1B ARXF20C5V1B ARXF25C5V1B ARXF35C5V1B ARXF42C5V1B ...

Страница 2: ...bout mounting the outdoor unit 26 6 3 2 Precautions when mounting the outdoor unit 27 6 3 3 To provide the installation structure 27 6 3 4 To install the outdoor unit 27 6 3 5 To provide drainage 28 6 3 6 To prevent the outdoor unit from falling over 28 7 Piping installation 30 7 1 Preparing refrigerant piping 30 7 1 1 Refrigerant piping requirements 30 7 1 2 Refrigerant piping length and height d...

Страница 3: ... during commissioning 49 10 5 To perform a test run 49 10 6 Starting up the outdoor unit 50 11 Hand over to the user 51 12 Maintenance and service 52 12 1 Overview Maintenance and service 52 12 2 Maintenance safety precautions 52 12 3 Checklist for yearly maintenance of the outdoor unit 52 13 Troubleshooting 54 13 1 Overview Troubleshooting 54 13 2 Precautions when troubleshooting 54 13 3 Solving ...

Страница 4: ...nit connecting the electrical wiring to the indoor unit see the installation manual of the indoor unit Documentation set This document is part of a documentation set The complete set consists of General safety precautions Safety instructions that you MUST read before installing Format Paper in the box of the outdoor unit Outdoor unit installation manual Installation instructions Format Paper in th...

Страница 5: ...How to unpack the units and remove their accessories About the unit System layout Operation range Preparation What to do and know before going on site Installation What to do and know to install the system Configuration What to do and know to configure the system after it is installed Commissioning What to do and know to commission the system after it is configured Hand over to the user What to gi...

Страница 6: ...f warnings and symbols DANGER Indicates a situation that results in death or serious injury DANGER RISK OF ELECTROCUTION Indicates a situation that could result in electrocution DANGER RISK OF BURNING SCALDING Indicates a situation that could result in burning scalding because of extreme hot or cold temperatures DANGER RISK OF EXPLOSION Indicates a situation that could result in explosion WARNING ...

Страница 7: ...r dealer DANGER RISK OF BURNING SCALDING Do NOT touch the refrigerant piping water piping or internal parts during and immediately after operation It could be too hot or too cold Give it time to return to normal temperature If you MUST touch it wear protective gloves Do NOT touch any accidental leaking refrigerant WARNING Improper installation or attachment of equipment or accessories could result...

Страница 8: ...l Name address and day and night telephone numbers for obtaining service In Europe EN378 provides the necessary guidance for this logbook 2 2 2 Installation site Provide sufficient space around the unit for servicing and air circulation Make sure the installation site withstands the weight and vibration of the unit Make sure the area is well ventilated Do NOT block any ventilation openings Make su...

Страница 9: ...ntial ignition source are installed in the duct work example hot surfaces with a temperature exceeding 700 C and electric switching device only auxiliary devices approved by the manufacturer are used in the duct work air inlet AND outlet are connected directly to the same room by ducting Do NOT use spaces such as a false ceiling as a duct for the air inlet or outlet NOTICE Precautions shall be tak...

Страница 10: ...ery room NOTICE Pipework shall be protected from physical damage Installation of pipework shall be kept 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 Contains fluorinated greenhouse gases 2 1 1 1 2 2 kg tCO2 eq 1000 GWP kg kg kg GWP xxx R32 2 Determine which graph or table to ...

Страница 11: ...6 6 4 0 136 7 6 492 4 2 11 2 7 8 38 5 4 2 150 7 8 518 4 4 12 3 4 4 165 m kg Amin m2 4 6 20 0 4 8 21 8 5 0 23 6 1 842 5 2 25 6 1 843 4 45 5 4 27 6 2 0 4 83 5 6 29 7 2 2 5 31 5 8 31 8 2 4 5 79 6 0 34 0 2 6 6 39 6 2 36 4 2 8 7 41 6 4 38 7 3 0 8 51 6 6 41 2 3 2 9 68 6 8 43 7 3 4 10 9 7 0 46 3 3 6 12 3 7 2 49 0 3 8 13 7 7 4 51 8 4 0 15 1 7 6 54 6 4 2 16 7 7 8 57 5 4 4 18 3 8 40 5 8 2 42 6 8 4 44 7 8 6 ...

Страница 12: ... them directly into the environment Use a vacuum pump to evacuate the installation NOTICE After all the piping has been connected make sure there is no gas leak Use nitrogen to perform a gas leak detection NOTICE To avoid compressor breakdown do NOT charge more than the specified amount of refrigerant When the refrigerant system is to be opened refrigerant MUST be treated according to the applicab...

Страница 13: ...e consequence Incorrect refrigerant amount 2 2 4 Electrical DANGER RISK OF ELECTROCUTION Turn OFF all power supply before removing the switch box cover connecting electrical wiring or touching electrical parts 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 th...

Страница 14: ...N When connecting the power supply connect the earth cable first before making the current carrying connections When disconnecting the power supply disconnect the current carrying cables first before separating the earth connection The length of the conductors between the power supply stress relief and the terminal block itself MUST be as such that the current carrying wires are tautened before th...

Страница 15: ...ower 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 Running the product in reversed phase can break the compressor and other parts ...

Страница 16: ...mbedded pipe and wall cover in the feed through hole to prevent possible heat electrical shock or fire Piping installation see 7 Piping installation 430 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 DANGER RISK OF BURNING SCALDING CAUTION Use the flare nut fixed to the u...

Страница 17: ...h pressure side Do NOT use taped wires stranded conductor wires extension cords or connections from a star system They can cause overheating electrical shock or fire Do NOT install a phase advancing capacitor because this unit is equipped with an inverter A phase advancing capacitor will reduce performance and may cause accidents WARNING Use an all pole disconnection type breaker with at least 3 m...

Страница 18: ...the unit MUST be checked for damage Any damage MUST be reported immediately to the claims agent of the carrier Bring the packed unit as close as possible to its final installation position to prevent damage during transport When handling the unit take into account the following Fragile handle the unit with care Keep the unit upright in order to avoid damage Prepare the path along which you want to...

Страница 19: ...tion servicing maintenance and repair comply with instructions from Daikin and with applicable legislation and are executed ONLY by authorised persons 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 ...

Страница 20: ...R32 split series 4P519439 10J 2021 06 b e c d 1 a 1 1 1 1 a General safety precautions b Outdoor unit installation manual c Fluorinated greenhouse gases label d Multilingual fluorinated greenhouse gases label e Drain plug located on the bottom of the packing case ...

Страница 21: ... and options 5 1 Overview About the units and options This chapter contains information about Identification of the outdoor unit 5 2 Identification NOTICE When installing or servicing several units at the same time make sure NOT to switch the service panels between different models 5 2 1 Identification label Outdoor unit Location ...

Страница 22: ...created the unit MUST be covered CAUTION Check if the installation location can support the unit s weight Poor installation is hazardous It can also cause vibrations or unusual operating noise Provide sufficient service space Do NOT install the unit so that it is in contact with a ceiling or a wall as this may cause vibrations Choose a location where the operation noise or the hot cold air dischar...

Страница 23: ...wing spacing guidelines 1200 150 150 50 300 300 mm mm a b b a a Air outlet b Air inlet NOTICE Do NOT stack the units on each other Do NOT hang the unit on a ceiling Strong winds 18 km h blowing against the outdoor unit s air outlet causes short circuit suction of discharge air This may result in deterioration of the operational capacity frequent frost acceleration in heating operation disruption o...

Страница 24: ...eral oil mist spray or vapour may be present in the atmosphere Plastic parts may deteriorate and fall off or cause water leakage It is NOT recommended to install the unit in the following places because it may shorten the life of the unit Where the voltage fluctuates a lot In vehicles or vessels Where acidic or alkaline vapour is present Seaside installation Make sure the outdoor unit is NOT direc...

Страница 25: ...limates Protect the outdoor unit against direct snowfall and take care that the outdoor unit is NEVER snowed up a b c c d a Snow cover or shed b Pedestal c Prevailing wind direction d Air outlet In any case provide at least 300 mm of free space below the unit Additionally make sure the unit is positioned at least 100 mm above the maximum expected level of snow See 6 3 Mounting the outdoor unit 426...

Страница 26: ...ved 6 2 2 To open the outdoor unit DANGER RISK OF ELECTROCUTION DANGER RISK OF BURNING SCALDING 1 2 1 2 6 3 Mounting the outdoor unit 6 3 1 About mounting the outdoor unit When The outdoor and indoor unit must be mounted before the refrigerant piping can be connected Typical workflow Mounting the outdoor unit typically consists of the following stages 1 Providing the installation structure 2 Insta...

Страница 27: ...ons Preparation 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 Fix the unit securely by means of foundation bolts in accordance with the foundation drawing Prepare 4 sets of M8 or M10 anchor bolts nuts and washers field supply 20 mm 300 4 7 0 1 9 2 mm 1 9 2 a a 100 mm above expecte...

Страница 28: ...g figure NOTICE If the unit is installed in a cold climate take adequate measures so that the evacuated condensate CANNOT freeze NOTICE If the drain holes of the outdoor unit are blocked up by a mounting base or floor surface place additional foot bases 30 mm under the outdoor unit s feet INFORMATION For information on the available options contact your dealer 1 Use a drain plug for drainage 2 Use...

Страница 29: ...6 Unit installation Installer reference guide 29 A RXF20 42C5V1B R32 split series 4P519439 10J 2021 06 5 Tighten the cables ...

Страница 30: ...3 3 To check for leaks 37 7 3 4 To perform vacuum drying 37 7 4 Charging refrigerant 39 7 4 1 About charging refrigerant 39 7 4 2 About the refrigerant 40 7 4 3 To determine the additional refrigerant amount 40 7 4 4 To determine the complete recharge amount 41 7 4 5 To charge additional refrigerant 41 7 4 6 To fix the fluorinated greenhouse gases label 41 7 1 Preparing refrigerant piping 7 1 1 Re...

Страница 31: ...the humidity is higher than RH 80 the thickness of the insulation materials should be at least 20 mm to prevent condensation on the surface of the insulation 7 2 Connecting the refrigerant piping 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 Connect...

Страница 32: ...rant 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 mineral oils and moisture from mixing into the system Install the piping so that the flare is NOT subjected to mechanical stress Protect the piping as described in the following tabl...

Страница 33: ...when loosening a flare nut ALWAYS use a spanner and torque wrench together to tighten the flare nut when connecting the piping This to prevent nut cracking and leaks a b c d a Torque wrench b Spanner c Piping union d Flare nut Piping size mm Tightening torque N m Flare dimensions A mm Flare shape mm Ø6 4 15 17 8 7 9 1 R 0 4 0 8 2 45 90 2 ØA Ø9 5 33 39 12 8 13 2 7 2 4 Pipe bending guidelines Use a ...

Страница 34: ...made a b c 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 To handle the stop valve Take the following guidelines into account The stop valves are factory closed The follo...

Страница 35: ...Silicon sealant make sure there is no gap To open close the stop valve 1 Remove the stop valve cover 2 Insert a hexagon wrench liquid side 4 mm gas side 4 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 4 Install the stop valve cover Result The valve is now open closed To handle the stem cap ...

Страница 36: ... refrigerant piping between indoor and outdoor unit is installed in a ducting or the refrigerant piping is wrapped with finishing tape 7 3 Checking the refrigerant piping 7 3 1 About checking the refrigerant piping The outdoor unit s internal refrigerant piping has been factory tested for leaks You only have to check the outdoor unit s external refrigerant piping Before checking the refrigerant pi...

Страница 37: ...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 on the unit name plate NOTICE ALWAYS use a recommended bubble test solution from your wholesaler NEVER use soap water Soap water may cause cracking of components such as flare nuts or stop valve caps Soap water may contai...

Страница 38: ...e in the system Go to the next step 3 Vacuum the system for at least 2 hours to a manifold pressure of 0 1 MPa 1 bar 4 After turning the pump OFF check the pressure for at least 1 hour 5 If you do NOT reach the target vacuum or CANNOT maintain the vacuum for 1 hour do the following Check for leaks again Perform vacuum drying again NOTICE Make sure to open the stop valves after installing the refri...

Страница 39: ...workflow Charging additional refrigerant typically consists of the following stages 1 Determining if and how much you have to charge additionally 2 If necessary charging additional refrigerant 3 Filling in the fluorinated greenhouse gases label and fixing it to the inside of the outdoor unit Completely recharging refrigerant Before completely recharging refrigerant make sure the following is done ...

Страница 40: ...r an operating electric heater WARNING Do NOT pierce or burn refrigerant cycle parts Do NOT use cleaning materials or means to accelerate the defrosting process other than those recommended by the manufacturer Be aware that the refrigerant inside the system is odourless WARNING The refrigerant inside the unit is mildly flammable but normally does NOT leak If the refrigerant leaks in the room and c...

Страница 41: ...ort 2 Charge the additional refrigerant amount 3 Open the gas stop valve If pump down is needed in case of dismantling or relocating the system see 14 2 To pump down 456 for more details 7 4 6 To fix the fluorinated greenhouse gases label 1 Fill in the label as follows b Contains fluorinated greenhouse gases 2 1 1 1 2 2 kg tCO2 eq GWP kg 1000 kg kg GWP XXX RXXX a f c d e a If a multilingual fluori...

Страница 42: ...7 Piping installation Installer reference guide 42 A RXF20 42C5V1B R32 split series 4P519439 10J 2021 06 2 Fix the label on the inside of the outdoor unit near the gas and liquid stop valves ...

Страница 43: ... 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 Install the required fuses or circuit breakers Secure the electrical wiring with cable ties so that the cables do NOT come in contact with sharp edges or piping particularly on the high pressure side Do NOT u...

Страница 44: ...upply 8 2 2 Precautions when connecting the electrical wiring INFORMATION Also read the precautions and requirements in the following chapters General safety precautions Preparation DANGER RISK OF ELECTROCUTION WARNING ALWAYS use multicore cable for power supply cables WARNING If the supply cord is damaged it MUST be replaced by the manufacturer its service agent or similarly qualified persons in ...

Страница 45: ... and fasten the terminal with the appropriate tool b a a Stranded conductor wire b Round crimp style terminal Use the following methods for installing wires Wire type Installation method Single core wire c b c a a A AA A a Curled single core wire b Screw c Flat washer Stranded conductor wire with round crimp style terminal c b b a c a B B a Terminal b Screw c Flat washer Allowed NOT allowed Tighte...

Страница 46: ...reaker MUST comply with applicable legislation 8 2 5 To connect the electrical wiring to the outdoor unit 1 Remove the service cover See 6 2 2 To open the outdoor unit 426 2 Strip insulation 20 mm from the wires a b a Strip wire end to this point b An excessive strip length may cause electrical shock or leakage 3 Open the wire clamp 4 Connect the interconnection cable and power supply as follows 5...

Страница 47: ...outdoor unit is installed in a ducting or the refrigerant piping is wrapped with finishing tape 1 Insulate and fix the refrigerant piping and cables as follows g b a f e c d a Gas pipe b Gas pipe insulation c Interconnection cable d Field wiring if applicable e Liquid pipe f Liquid pipe insulation g Finishing tape 2 Install the service cover 9 2 To close the outdoor unit NOTICE When closing the ou...

Страница 48: ...rking on an indoor unit while performing a test operation is dangerous CAUTION Do NOT insert fingers rods or other objects into the air inlet or outlet Do NOT remove the fan guard When the fan is rotating at high speed it will cause injury NOTICE Be sure to turn ON the power 6 hours before operation in order to have power running to the crankcase heater and to protect the compressor During test op...

Страница 49: ...moothly Possible consequence Condensate water might drip The indoor unit receives the signals of the user interface The specified wires are used for the interconnection cable The fuses circuit breakers or locally installed protection devices are installed according to this document and have NOT been bypassed 10 4 Checklist during commissioning To perform an air purge To perform a test run 10 5 To ...

Страница 50: ... 2021 06 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 10 6 Starting up the outdoor unit See the indoor unit installation manual for configuration and commissioning of the system ...

Страница 51: ... the user Make sure that the user has the printed documentation and ask him her to keep it for future reference Inform the user that he can find the complete documentation at the URL mentioned earlier in this manual 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 Explain the user about energy saving tip...

Страница 52: ...enance safety precautions The yearly maintenance of the outdoor unit 12 2 Maintenance safety precautions DANGER RISK OF ELECTROCUTION DANGER RISK OF BURNING SCALDING NOTICE Risk of electrostatic discharge Before performing any maintenance or service work touch a metal part of the unit in order to eliminate static electricity and to protect the PCB WARNING Before carrying out any maintenance or rep...

Страница 53: ...eries 4P519439 10J 2021 06 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 ...

Страница 54: ...e circuit breaker When a safety device was activated stop the unit and find out why the safety device was activated before resetting it NEVER shunt safety devices or change their values to a value other than the factory default setting If you are unable to find the cause of the problem call your dealer DANGER RISK OF ELECTROCUTION WARNING Prevent hazards due to inadvertent resetting of the thermal...

Страница 55: ...ctive action Incomplete thermal insulation gas and liquid piping indoor portions of the drain hose extension Make sure the thermal insulation of the piping and the drain hose is complete Improperly connected drainage Secure the drainage 13 3 4 Symptom Electrical leakage Possible causes Corrective action The unit is NOT earthed correctly Check and correct the connection of the earth wiring 13 3 5 S...

Страница 56: ... for reuse recycling and recovery By ensuring this product is disposed of correctly you will help to prevent potential negative consequences for the environment and human health For more information contact your installer or local authority 14 1 Overview Disposal Typical workflow Disposing of the system typically consists of the following stages 1 Pumping down the system 2 Bringing the system to a...

Страница 57: ... 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 c b e d d a a Gas stop valve b Closing direction c Hexagonal wrench d Valve cap e Liquid stop valve 14 3 To start and stop forced cooling There are 2 methods to perform forced cooling Method 1 Using the indoor unit ON OFF switc...

Страница 58: ... R32 split series 4P519439 10J 2021 06 15 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 ...

Страница 59: ...ED V L PILOT LAMP LIGHT EMITTING DIODE HAP LIGHT EMITTING DIODE SERVICE MONITOR GREEN HIGH VOLTAGE HIGH VOLTAGE IES INTELLIGENT EYE SENSOR IPM INTELLIGENT POWER MODULE K R KCR KFR KHuR K M MAGNETIC RELAY L LIVE L COIL L R REACTOR M STEPPER MOTOR M C COMPRESSOR MOTOR M F FAN MOTOR M P DRAIN PUMP MOTOR M S SWING MOTOR MR MRCW MRM MRN MAGNETIC RELAY N NEUTRAL n N NUMBER OF PASSES THROUGH FERRITE CORE...

Страница 60: ...lication explaining how to install configure and maintain it Operation manual Instruction manual specified for a certain product or application explaining how to operate it Maintenance instructions Instruction manual specified for a certain product or application which explains if relevant how to install configure operate and or maintain the product or application Accessories Labels manuals inform...

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Страница 64: ...TANBUL TÜRKİYE Tel 0216 453 27 00 Faks 0216 671 06 00 Çağrı Merkezi 444 999 0 Web www daikin com tr Gülsuyu Mahallesi Fevzi Çakmak Caddesi Burçak Sokak No 20 34848 Maltepe 4P519439 10J 2021 06 Copyright 2021 Daikin Verantwortung für Energie und Umwelt ...

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