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Electrical installation

Installer reference guide

48

3AMXF-A9, 3AMXF-A9, 3AMXM-N9

R32 Split series

4P600463-1F – 2022.05

9 Electrical installation

In this chapter

9.1

About connecting the electrical wiring ..................................................................................................................................

48

9.1.1

Precautions when connecting the electrical wiring ..............................................................................................

48

9.1.2

Guidelines when connecting the electrical wiring ................................................................................................

50

9.1.3

Specifications of standard wiring components .....................................................................................................

51

9.2

To connect the electrical wiring to the outdoor unit ............................................................................................................

52

9.1 About connecting the electrical wiring

Before connecting the electrical wiring

Make sure the refrigerant piping is connected and checked.

Typical workflow

Connecting the electrical wiring typically consists of the following stages:

1

Making  sure  the  power  supply  system  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 supply of the indoor unit.

5

Connecting the main power supply of the gas boiler.

6

Connecting  the  communication  cable  between  the  gas  boiler  and  the  indoor
unit.

7

Connecting the user interface.

8

Connecting the shut-off valves.

9

Connecting the domestic hot water pump.

10

Connecting the alarm output.

11

Connecting the space heating ON/OFF output.

12

Connecting the safety thermostat.

9.1.1 Precautions when connecting the electrical wiring

DANGER: RISK OF ELECTROCUTION

DANGER: RISK OF ELECTROCUTION

All electrical parts (including thermistors) are powered by the power supply. Do NOT
touch them with bare hands.

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.

Содержание 3AMXM52N2V1B9

Страница 1: ...Installer reference guide R32 Split series 3AMXM52N2V1B9 3AMXF52A2V1B9 3MXF52A2V1B9 3MXF68A2V1B9...

Страница 2: ...stallation 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 32 7 1 Preparing refrigerant pipi...

Страница 3: ...hecklist before commissioning 60 12 4 Checklist during commissioning 60 12 5 Trial operation and testing 60 12 5 1 About wiring error check 61 12 5 2 To perform a test run 62 12 6 Starting up the outd...

Страница 4: ...frigerant piping 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 Th...

Страница 5: ...death or 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 d...

Страница 6: ...mentation Installer reference guide 6 3AMXF A9 3AMXF A9 3AMXM N9 R32 Split series 4P600463 1F 2022 05 Symbol Explanation Indicates a table title or a reference to it Example 1 3 Table title means Tabl...

Страница 7: ...instructions described in the Daikin documentation WARNING Tear apart and throw away plastic packaging bags so that nobody especially children can play with them Possible risk suffocation WARNING Prov...

Страница 8: ...e leakage of flammable gases example thinner or gasoline carbon fibre ignitable dust In places where corrosive gas example sulphurous acid gas is produced Corrosion of copper pipes or soldered parts m...

Страница 9: ...ing gas appliance or an operating electric heater in case the floor area is less than the minimum floor area A m no auxiliary devices which may be a potential ignition source are installed in the duct...

Страница 10: ...in m 2 Ceiling 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...

Страница 11: ...NING Take sufficient precautions in case of refrigerant leakage If refrigerant gas leaks ventilate the area immediately Possible risks Excessive refrigerant concentrations in a closed room can lead to...

Страница 12: ...igerant in liquid form Adding it in gas form may prevent normal operation CAUTION When the refrigerant charging procedure is done or when pausing close the valve of the refrigerant tank immediately If...

Страница 13: ...RNING 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...

Страница 14: ...radio waves a distance of 1 meter may NOT be sufficient 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 r...

Страница 15: ...EN378 is 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...

Страница 16: ...piping Site made joints directly connecting 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 w...

Страница 17: ...ing refrigerant This could result in severe wounds caused by frostbite Electrical installation see 9 Electrical installation 448 WARNING All wiring MUST be performed by an authorised electrician and M...

Страница 18: ...will be very hot DANGER RISK OF ELECTROCUTION All electrical parts including thermistors are powered by the power supply Do NOT touch them with bare hands DANGER RISK OF ELECTROCUTION Disconnect the...

Страница 19: ...Do NOT rinse the unit This may cause electric shocks or fire DANGER RISK OF ELECTROCUTION Use this compressor on a grounded system only Turn the power off before servicing the compressor Reattach the...

Страница 20: ...f the thermal cut out power to this appliance MUST NOT be supplied through an external switching device such as a timer or connected to a circuit that is regularly turned ON and OFF by the utility DAN...

Страница 21: ...ST 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 Prepare in advance the pa...

Страница 22: ...accessories from the outdoor unit 1 Lift the outdoor unit 2 Remove the accessories from the bottom of the package 3 Make sure you have all following accessories delivered with the unit 1 1 2 1 6 1 a...

Страница 23: ...al wiring before you can charge refrigerant The Hybrid for Multi or the DHW generator for Multi are considered as 1 room connection For the correct combination see the combination table and the instal...

Страница 24: ...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 covered CAUTION Check if th...

Страница 25: ...Also read the following requirements 2 General safety precautions 47 7 1 3 Refrigerant piping length and height difference 433 Mind the following spacing guidelines 100 50 350 mm b a 100 50 b a 100 b...

Страница 26: ...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 a...

Страница 27: ...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 manual of th...

Страница 28: ...teral snowfall is possible make sure that the heat exchanger coil is NOT affected by the snow If necessary install a snow cover or shed and a pedestal 6 2 Opening the unit 6 2 1 About opening the unit...

Страница 29: ...s in the following chapters 2 General safety precautions 47 6 1 Preparing the installation site 424 6 3 3 To provide the installation structure Check the strength and level of the installation ground...

Страница 30: ...h so that it does NOT become slippery in case of ambient freezing temperatures If you install the unit on a frame install a waterproof plate within 150 mm of the bottom side of the unit in order to pr...

Страница 31: ...stall a drain cap large b Drain hole Install a drain cap small c Drain hole for drain socket 6 3 6 To prevent the outdoor unit from falling over In case the unit is installed in places where strong wi...

Страница 32: ...g 41 7 3 1 About checking the refrigerant piping 41 7 3 2 Precautions when checking the refrigerant piping 41 7 3 3 To check for leaks 42 7 3 4 To perform vacuum drying 42 7 1 Preparing refrigerant pi...

Страница 33: ...er 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 higher than 30 C and the...

Страница 34: ...indoor unit to piping Site made joints directly connecting piping to indoor units shall be of non permanent type CAUTION Do NOT connect the embedded branch piping and the outdoor unit when only carry...

Страница 35: ...en 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...

Страница 36: ...il or ester oil when connecting a flare nut Tighten 3 or 4 turns by hand before tightening firmly ALWAYS use 2 wrenches together when loosening a flare nut ALWAYS use a spanner and torque wrench toget...

Страница 37: ...m 1 0 1 5 mm 1 5 2 0 mm 5 Check that the flaring is properly 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 f...

Страница 38: ...as pipe connection port a b d e c a Outdoor unit connection port b Reducer no 1 c Reducer no 3 d Flare nut for 15 9 mm e Inter unit piping Connecting a 9 5 mm pipe to a 15 9 mm gas pipe connection por...

Страница 39: ...ndling the valve c d a b a Service port and service port cap b Valve stem c Field piping connection d Stem cap Keep both stop valves open during operation Do NOT apply excessive force to the valve ste...

Страница 40: ...k for refrigerant leaks Stem cap Width across flats mm Tightening torque N m Liquid side 19 18 20 Gas side 22 21 28 To handle the service cap ALWAYS use a charge hose equipped with a valve depressor p...

Страница 41: ...igerant piping 2 Performing vacuum drying to remove all moisture air or nitrogen from the refrigerant piping If there is a possibility of moisture being present in the refrigerant piping for example w...

Страница 42: ...nitrogen gas up to a gauge pressure of at least 200 kPa 2 bar It is recommended to pressurize to 3000 kPa 30 bar in order to detect small leaks 2 Check for leaks by applying the bubble test solution t...

Страница 43: ...each the target vacuum or CANNOT maintain the vacuum for 1 hour do the following Check for leaks again Perform vacuum drying again NOTICE Be sure to open the gas stop valve after piping installation a...

Страница 44: ...Before charging 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...

Страница 45: ...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 Turn OFF any combustible...

Страница 46: ...autions and requirements in the following chapters 2 General safety precautions 47 7 1 Preparing refrigerant piping 432 8 4 To determine the additional refrigerant amount If the total liquid piping le...

Страница 47: ...ee 16 2 To pump down 470 for more details 8 7 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...

Страница 48: ...r unit 3 Connecting the electrical wiring to the indoor unit 4 Connecting the main power supply of the indoor unit 5 Connecting the main power supply of the gas boiler 6 Connecting the communication c...

Страница 49: ...lead wire connector f S70 fan motor lead wire connector g S80 4 way valve lead wire connector h Compressor lead wire connector May differ depending on the model WARNING All wiring MUST be performed by...

Страница 50: ...pe breaker with at least 3 mm between the contact point gaps that provides full disconnection under overvoltage category III WARNING If the supply cord is damaged it MUST be replaced by the manufactur...

Страница 51: ...d Tightening 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 w...

Страница 52: ...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 sure to match the s...

Страница 53: ...ctrical installation Installer reference guide 53 3AMXF A9 3AMXF A9 3AMXM N9 R32 Split series 4P600463 1F 2022 05 L N 1 2 3 1 2 3 2 a a Wire retainer 10 Reattach the switch box cover and the service c...

Страница 54: ...switch box 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...

Страница 55: ...ON cool mode lock 57 11 1 About standby electricity saving function The standby electricity saving function turns OFF the power supply to the outdoor unit and turns ON the standby electricity saving...

Страница 56: ...unction is 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 operatio...

Страница 57: ...over on the service PCB 2 Set the heat mode lock switch SW5 1 to ON 4 3 2 1 4 3 2 1 A 1 2 3 4 5 SW5 2 OFF ON 1 1 11 5 About cool mode lock Cool mode lock limits the unit to cool operation Forced opera...

Страница 58: ...11 Configuration Installer reference guide 58 3AMXF A9 3AMXF A9 3AMXM N9 R32 Split series 4P600463 1F 2022 05 4 VHR 5N SVH 21T 1 S15 1 3 5...

Страница 59: ...ing error check 61 12 5 2 To perform a test run 62 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 i...

Страница 60: ...the outdoor unit are fully open Drainage Make sure drainage flows smoothly Possible consequence Condensate water might drip The indoor unit receives the signals of the user interface The specified wi...

Страница 61: ...is connected correctly If you perform a wiring error check the hybrid for multi indoor unit will not operate by heat pump for 72 hours During this time the gas boiler will take over the hybrid operati...

Страница 62: ...nutes The difference should be more than 8 C cooling or 20 C heating 3 First check operation of each unit individually then check simultaneous operation of all indoor units Check both heating and cool...

Страница 63: ...rly 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 Inform the user that he can find the complete do...

Страница 64: ...rming maintenance at least once a year However applicable legislation might require shorter maintenance intervals NOTICE Applicable legislation on fluorinated greenhouse gases requires that the refrig...

Страница 65: ...the following 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 h...

Страница 66: ...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 the safety device was activated...

Страница 67: ...f the piping and the drain hose is complete Improperly connected drainage Secure the drainage 15 3 4 Symptom Electrical leakage Possible causes Corrective action The unit is NOT earthed correctly Chec...

Страница 68: ...worked or freeze up in operating unit or stand by unit Overload relay worked or high discharge pipe temperature b Faulty compressor start Input over current Thermistor or CT abnormality b High temper...

Страница 69: ...ries 4P600463 1F 2022 05 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...

Страница 70: ...the environment pump down when relocating the unit or when disposing of the unit DANGER RISK OF EXPLOSION Pump down Refrigerant leakage If you want to pump down the system and there is a leak in the r...

Страница 71: ...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 servi...

Страница 72: ...16 Disposal Installer reference guide 72 3AMXF A9 3AMXF A9 3AMXM N9 R32 Split series 4P600463 1F 2022 05 8 Close switch box cover and service cover...

Страница 73: ...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 Symbol Meaning Circuit breaker Protective earth Connection...

Страница 74: ...AP 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...

Страница 75: ...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 Transformer TC TRC Transmitter V R...

Страница 76: ...t s t r A r B r C s t s t s t u u u d p o o n l l m l w x v A v B v C v A v B v C q h 3MXF68 7 9CuT 7 9CuT 7 9CuT 7 9CuT 12 7CuT M 12 7CuT 12 7CuT 9 5CuT 12 7CuT 12 7CuT 12 7CuT 12 7CuT 12 7CuT 12 7C...

Страница 77: ...e guide 77 3AMXF A9 3AMXF A9 3AMXM N9 R32 Split series 4P600463 1F 2022 05 h Distributor r Electronic expansion valve Refrigerant flow cooling i Muffler with filter s Thermistor liquid Refrigerant flo...

Страница 78: ...application 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 instruction...

Страница 79: ......

Страница 80: ...4P600463 1F 2022 05 Copyright 2019 Daikin Verantwortung f r Energie und Umwelt...

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