Daikin 4MWXM52A2V1B User Manual Download

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Installer reference guide

R32 Split series

4MWXM52A2V1B

Summary of Contents for 4MWXM52A2V1B

Page 1: ...Installer reference guide R32 Split series 4MWXM52A2V1B...

Page 2: ...the installation structure 29 6 3 4 To install the outdoor unit 30 6 3 5 To provide drainage 30 6 3 6 To prevent the outdoor unit from falling over 31 7 Piping installation 33 7 1 Preparing refrigeran...

Page 3: ...59 12 4 Checklist during commissioning 59 12 5 Trial operation and testing 59 12 5 1 About wiring error check 60 12 5 2 To perform a test run 61 12 6 Starting up the outdoor unit 62 13 Hand over to th...

Page 4: ...iping to the indoor unit 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...

Page 5: ...serious injury WARNING FLAMMABLE MATERIAL CAUTION Indicates a situation that could result in minor or moderate injury NOTICE Indicates a situation that could result in equipment or property damage INF...

Page 6: ...the documentation Installer reference guide 6 4MWXM A R32 Split series 4P678385 1A 2022 02 Symbol Explanation Indicates a table title or a reference to it Example 1 3 Table title means Table 3 in cha...

Page 7: ...plied materials comply with applicable legislation on top of the instructions described in the Daikin documentation CAUTION Wear adequate personal protective equipment protective gloves safety glasses...

Page 8: ...s where there is a risk of fire due to the leakage of flammable gases example thinner or gasoline carbon fibre ignitable dust In places where corrosive gas example sulphurous acid gas is produced Corr...

Page 9: ...signed and installed such as to minimise the likelihood of hydraulic shock damaging the system The indoor equipment and pipes shall be securely mounted and guarded such that accidental rupture of equi...

Page 10: ...ling mounted unit a 4 6 13 4 4 6 180 4 8 14 6 4 8 196 5 0 15 8 5 0 213 1 842 5 2 17 1 1 842 5 2 230 1 843 3 64 5 4 18 5 1 843 28 9 5 4 248 2 0 3 95 5 6 19 9 2 0 34 0 5 6 267 2 2 4 34 5 8 21 3 2 2 41 2...

Page 11: ...ficiency Toxic gas might be produced if refrigerant gas comes into contact with fire DANGER RISK OF EXPLOSION Pump down Refrigerant leakage If you want to pump down the system and there is a leak in t...

Page 12: ...filling siphon attached Charge with the cylinder upright A siphon tube is NOT present Charge with the cylinder upside down Open refrigerant cylinders slowly Charge the refrigerant in liquid form Addi...

Page 13: ...cal shock or fire When installing the earth leakage protector make sure it is compatible with the inverter resistant to high frequency electric noise to avoid unnecessary opening of the earth leakage...

Page 14: ...h 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...

Page 15: ...the applicable standard Installation site see 6 1 Preparing the installation site 424 CAUTION Check if the installation location can support the unit s weight Poor installation is hazardous It can al...

Page 16: ...iping and the outdoor unit when only carrying out piping work without connecting the indoor unit in order to add another indoor unit later WARNING Connect the refrigerant piping securely before runnin...

Page 17: ...stablish 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...

Page 18: ...be less than 50 V DC before you can touch electrical components For the location of the terminals see the wiring diagram Finishing the outdoor unit installation see 10 Finishing the outdoor unit inst...

Page 19: ...on the switch box of the unit ALWAYS make sure that the unit is disconnected from the mains Turn off the respective circuit breaker When a safety device was activated stop the unit and find out why t...

Page 20: ...eported 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...

Page 21: ...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 2 3 To remove the accessories from the outdoor unit 1 Li...

Page 22: ...t installation manual b General safety precautions c Fluorinated greenhouse gases label d Multilingual fluorinated greenhouse gases label e Energy label f Screw bag The screws will be used for fixing...

Page 23: ...tioning indoor unit or the DHW tank see the combination table For details contact your dealer WARNING MILDLY FLAMMABLE MATERIAL The refrigerant inside this unit is mildly flammable INFORMATION For the...

Page 24: ...carrying the unit in and out of the site Do NOT install the unit in places often used as work place In case of construction works e g grinding works where a lot of dust is created the unit MUST be cov...

Page 25: ...eral safety precautions 47 7 1 3 Refrigerant piping length and height difference 434 Mind the following spacing guidelines 100 50 350 mm b a 100 50 b a 100 b a b a 350 350 50 b a a Air outlet b Air in...

Page 26: ...onditions 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 INFORMATION The sound pressure...

Page 27: ...lding c Outdoor unit d Windbreaker The outdoor unit is designed for outdoor installation only and for ambient temperatures within the following ranges unless otherwise specified in the operation manua...

Page 28: ...n heavy snowfall areas it is very important to select an installation site where the snow will NOT affect the unit If lateral snowfall is possible make sure that the heat exchanger coil is NOT affecte...

Page 29: ...g the installation site 424 6 3 2 Precautions when mounting the outdoor unit INFORMATION Also read the precautions and requirements in the following chapters 2 General safety precautions 47 6 1 Prepar...

Page 30: ...ase to make sure that there is proper drainage in order to avoid ice accumulation Prepare a water drainage channel around the foundation to drain waste water away from the unit Avoid drain water flowi...

Page 31: ...in 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 a c b b b a a a Drain hole Install a drain ca...

Page 32: ...6 Unit installation Installer reference guide 32 4MWXM A R32 Split series 4P678385 1A 2022 02...

Page 33: ...3 1 About checking the refrigerant piping 41 7 3 2 Precautions when checking the refrigerant piping 42 7 3 3 To check for leaks 42 7 3 4 To perform vacuum drying 42 7 1 Preparing refrigerant piping 7...

Page 34: ...ulation thickness Pipe outer diameter p Insulation inner diameter i Insulation thickness t 6 4 mm 1 4 8 10 mm 10 mm 9 5 mm 3 8 12 15 mm 13 mm 12 7 mm 1 2 14 16 mm 13 mm i i t p p If the temperature is...

Page 35: ...ting piping to indoor units shall be of non permanent type CAUTION Do NOT connect the embedded branch piping and the outdoor unit when only carrying out piping work without connecting the indoor unit...

Page 36: ...mineral oils and moisture from mixing into the system Install the piping so that the flare is NOT subjected to mechanical stress Do NOT leave pipes unattended at the site If the installation is NOT do...

Page 37: ...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 m...

Page 38: ...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 Connections between outdoor and indoor unit using...

Page 39: ...or the smaller pipe may be damaged about 2 3 1 the normal torque 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...

Page 40: ...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...

Page 41: ...rant 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...

Page 42: ...irmly 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 r...

Page 43: ...ncreases There is moisture 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 lea...

Page 44: ...rging additional refrigerant make sure the outdoor unit s external refrigerant piping is checked leak test vacuum drying INFORMATION Depending on the units and or the installation conditions it might...

Page 45: ...flammable 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 appli...

Page 46: ...ine 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...

Page 47: ...e applicable language and stick it on top of a b Factory refrigerant charge see unit name plate c Additional refrigerant amount charged d Total refrigerant charge e Quantity of fluorinated greenhouse...

Page 48: ...complies with the electrical specifications of the heat pump 2 Connecting the electrical wiring to the outdoor unit 3 Connecting the electrical wiring to the indoor unit 4 Connecting the main power su...

Page 49: ...m 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...

Page 50: ...0 S22 room A B C S23 TO TANK electronic expansion valve coil lead wire connector d MR30_A MR30_B suspend lead wire connectors e S40 thermal overload relay lead wire and high pressure switch connector...

Page 51: ...ng torques Item Tightening torque N m M4 X1M 1 2 M4 earth The earth wire between the wire retainer and the terminal must be longer than the other wires 1 3 9 1 3 Specifications of standard wiring comp...

Page 52: ...s a b a Strip wire end to this point b An excessive strip length may cause electrical shock or leakage 3 Connect the wires between the indoor and outdoor units so that the terminal numbers match Make...

Page 53: ...ttom of the protection plate 9 Make sure that the electrical wiring does NOT make contact with the gas piping 2 1 2 3 a b d c e f 1 2 L N 3 a Terminal for indoor unit A b Terminal for indoor unit B c...

Page 54: ...cover before turning ON the power supply 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 finish...

Page 55: ...at mode lock 57 11 1 About standby electricity saving function INFORMATION This function is available only for the air conditioning indoor units listed below The standby electricity saving function tu...

Page 56: ...set operates at high power the other indoor units will run with reduced capabilities Quiet operation priority If the indoor unit on which the priority room function is set to quiet operation the outd...

Page 57: ...5 SW6 2 OFF ON 2 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...

Page 58: ...or check 60 12 5 2 To perform a test run 61 12 6 Starting up the outdoor unit 62 12 1 Overview Commissioning This chapter describes what you have to do and know to commission the system after it is in...

Page 59: ...led and the pipes are properly insulated The stop valves gas and liquid on the outdoor unit are fully open Drainage Make sure drainage flows smoothly Possible consequence Condensate water might drip T...

Page 60: ...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 and if water temperature in DHW tank is 20 C To...

Page 61: ...equisite 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...

Page 62: ...02 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 Se...

Page 63: ...er 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 thi...

Page 64: ...tenance at least once a year However applicable legislation might require shorter maintenance intervals NOTICE Applicable legislation on fluorinated greenhouse gases requires that the refrigerant char...

Page 65: ...wing at least once a year 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 excha...

Page 66: ...the respective 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...

Page 67: ...4 Symptom Electrical leakage Possible causes Corrective action The unit is NOT earthed correctly Check and correct the connection of the earth wiring 15 3 5 Symptom Priority room setting does NOT fun...

Page 68: ...temperature at inverter circuit heat sink Output over current b Refrigerant shortage b Low voltage to main circuit or over voltage to main circuit Reversing solenoid valve switching failure or high p...

Page 69: ...15 Troubleshooting Installer reference guide 69 4MWXM A R32 Split series 4P678385 1A 2022 02 a Diagnosis may not apply to some cases For more details refer to the service manual...

Page 70: ...automatic pump down function with which you can collect all refrigerant from the system into the outdoor unit Possible consequence Self combustion and explosion of the compressor because of air going...

Page 71: ...the power remove the service cover and the switch box cover and the service PCB switch cover 2 Set DIP switch SW5 and SW6 to OFF 3 Set DIP switch SW2 to COOL 2 1 1 1 OFF ON 4 3 2 1 2 1 4 3 2 1 HEAT CO...

Page 72: ...and numbering refer to the wiring diagram on the unit Part numbering is by Arabic numbers in ascending order for each part and is represented in the overview below by in the part code Symbol Meaning S...

Page 73: ...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 L...

Page 74: ...igh S PL Pressure switch low S T Thermostat S RH Humidity sensor S W SW Operation switch SA F1S Surge arrester SR WLU Signal receiver SS Selector switch SHEET METAL Terminal strip fixed plate T R Tran...

Page 75: ...stor gas b Outdoor air temperature thermistor l Muffler v Room A B C and Domestic hot water tank W c Heat exchanger thermistor m Discharge pipe thermistor w Field piping liquid d Refnet header n Compr...

Page 76: ...on 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 Instruct...

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Daikin 4MWXM52A2V1B, Installer'S Reference Manual

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