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Electrical installation

Installer reference guide

46

RXTM-R_RXTP-R_ARXTP-R_RXTA-B

R32 split series

4P518023-11H – 2021.03

9 Electrical installation

In this chapter

9.1

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

46

9.1.1

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

46

9.1.2

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

48

9.1.3

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

49

9.2

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

49

9.1 About connecting the electrical wiring

Before connecting the electrical wiring

Make sure:

The refrigerant piping is connected and checked

The water piping is connected

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 units.

2

Connecting the electrical wiring to the outdoor unit.

3

Connecting the electrical wiring to the indoor unit.

4

Connecting the main power supply.

9.1.1 Precautions when connecting the electrical wiring

DANGER: RISK OF ELECTROCUTION

WARNING

ALWAYS use multicore cable for power supply cables.

INFORMATION

Also  read  the  precautions  and  requirements  in  the 

"2  General  safety

precautions"

 [

4

 7].

INFORMATION

Also read 

"9.1.3 Specifications of standard wiring components"

 [

4

 49].

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.

Содержание RXTM30R2V1B

Страница 1: ...Installer reference guide R32 split series RXTA30B2V1B RXTM30R2V1B RXTM40R2V1B RXTP25R2V1B RXTP35R2V1B ARXTP25R2V1B ARXTP35R2V1B...

Страница 2: ...ounting the outdoor unit 29 6 3 3 To provide 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 30 7 Pi...

Страница 3: ...to the user 56 14 Maintenance and service 57 14 1 Overview Maintenance and service 57 14 2 Maintenance safety precautions 57 14 3 Checklist for yearly maintenance of the outdoor unit 58 14 4 About th...

Страница 4: ...oor 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 set consists of...

Страница 5: ...n 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...

Страница 6: ...ntation Installer reference guide 6 RXTM R_RXTP R_ARXTP R_RXTA B R32 split series 4P518023 11H 2021 03 Symbol Explanation Indicates a table title or a reference to it Example 1 3 Table title means Tab...

Страница 7: ...nal 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 Dai...

Страница 8: ...ere is machinery that emits electromagnetic waves Electromagnetic waves may disturb the control system and cause malfunction of the equipment In places where there is a risk of fire due to the leakage...

Страница 9: ...shall be designed 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 rupt...

Страница 10: ...min 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: ...o oxygen deficiency 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...

Страница 12: ...with Liquid 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 liqui...

Страница 13: ...use electrical 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 ear...

Страница 14: ...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 If there ex...

Страница 15: ...lation 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...

Страница 16: ...eration oil for R32 Do NOT reuse joints 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 T...

Страница 17: ...specified amount of refrigerant WARNING NEVER directly touch any accidental leaking refrigerant This could result in severe wounds caused by frostbite Electrical installation see 9 Electrical installa...

Страница 18: ...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 DANGER RISK OF ELECTROCUTION All...

Страница 19: ...SK OF BURNING SCALDING WARNING Before carrying out any maintenance or repair activity ALWAYS switch off the circuit breaker on the supply panel remove the fuses or open the protection devices of the u...

Страница 20: ...e 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 I...

Страница 21: ...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 int...

Страница 22: ...mage If the aluminum fins on the unit are bent straighten them with a fin comb field supply 4 2 3 To remove the accessories from the outdoor unit 1 Lift the outdoor unit 2 Remove the accessories at th...

Страница 23: ...03 5 About the unit WARNING MILDLY FLAMMABLE MATERIAL The refrigerant inside this unit is mildly flammable 5 1 Identification NOTICE When installing or servicing several units at the same time make su...

Страница 24: ...work place In case of construction works e g grinding works where a lot of dust is created the unit MUST be covered Choose an installation location with sufficient space for carrying the unit in and...

Страница 25: ...00 mm b a 100 50 150 50 b b a 100 b a a b a 100 a Air outlet b Air inlet NOTICE The height of the wall on the outlet side of the outdoor unit MUST be 1200 mm NOTICE Do NOT stack the units on each othe...

Страница 26: ...a mineral 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...

Страница 27: ...hat 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 It is recommended to provide at least 150 mm of free space below the unit 300...

Страница 28: ...removed 6 2 2 To open the outdoor unit DANGER RISK OF ELECTROCUTION DANGER RISK OF BURNING SCALDING 1 2 2 1 6 3 Mounting the outdoor unit 6 3 1 About mounting the outdoor unit When The outdoor and ind...

Страница 29: ...ite 424 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 Use a vibration proof rubbe...

Страница 30: ...aterproof plate within 150 mm of the bottom side of the unit in order to prevent water from getting into the unit and to avoid drain water dripping see the following figure NOTICE If the unit is insta...

Страница 31: ...6 Unit installation Installer reference guide 31 RXTM R_RXTP R_ARXTP R_RXTA B R32 split series 4P518023 11H 2021 03...

Страница 32: ...utions when checking the refrigerant piping 39 7 3 3 To check for leaks 39 7 3 4 To perform vacuum drying 40 7 1 Preparing refrigerant piping 7 1 1 Refrigerant piping requirements INFORMATION Also rea...

Страница 33: ...20 mm to prevent condensation on the surface of the insulation 7 1 3 Refrigerant piping length and height difference What Distance Maximum allowable pipe length 20 m Minimum allowable pipe length 1 5...

Страница 34: ...on oil for R32 Do NOT reuse joints 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 dr...

Страница 35: ...n 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 7 2 3 Guidelines when connecting th...

Страница 36: ...t surface facing down so that the chips do NOT enter the pipe a b a Cut exactly at right angles b Remove burrs 3 Remove the flare nut from the stop valve and put the flare nut on the pipe 4 Flare the...

Страница 37: ...the stem cap as this could cause a refrigerant leak a b a Spanner b Torque wrench When it is expected that the operating pressure will be low e g when cooling will be performed while the outside air t...

Страница 38: ...ossible Piping protection Protect the field piping against physical damage 1 Connect the liquid refrigerant connection from the indoor unit to the liquid stop valve of the outdoor unit a b c a Liquid...

Страница 39: ...ute Make sure the pump oil does not flow oppositely into the system while the pump is not working NOTICE Use this vacuum pump for R32 exclusively Using the same pump for other refrigerants may damage...

Страница 40: ...stop valve 1 Vacuum the system until the pressure on the manifold indicates 0 1 MPa 1 bar 2 Leave as is for 4 5 minutes and check the pressure If the pressure Then Does not change There is no moistur...

Страница 41: ...518023 11H 2021 03 INFORMATION After opening the stop valve it is possible that the pressure in the refrigerant piping does NOT increase This might be caused by e g the closed state of the expansion v...

Страница 42: ...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 condition...

Страница 43: ...ources e g open flames an operating gas appliance or an operating electric heater The room size shall be as specified in the General safety precaution WARNING Do NOT pierce or burn refrigerant cycle p...

Страница 44: ...mount INFORMATION If a complete recharge is necessary the total refrigerant charge is the factory refrigerant charge see unit name plate the determined additional amount 8 6 To charge additional refri...

Страница 45: ...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 ga...

Страница 46: ...pically consists of the following stages 1 Making sure the power supply system complies with the electrical specifications of the units 2 Connecting the electrical wiring to the outdoor unit 3 Connect...

Страница 47: ...between the contact point gaps that provide full disconnection under overvoltage category III WARNING If the supply cord is damaged it MUST be replaced by the manufacturer its service agent or simila...

Страница 48: ...ead wire h DB1 diode bridge 9 1 2 Guidelines when connecting the electrical wiring Keep the following in mind If stranded conductor wires are used install a round crimp style terminal on the end of th...

Страница 49: ...longer than the other wires 1 3 9 1 3 Specifications of standard wiring components Component Power supply cable Voltage 220 240 V Phase 1 Frequency 50 Hz Wire sizes 3 core cable 2 5 mm2 a b 4 0 mm2 b...

Страница 50: ...ssive strip length may cause electrical shock or leakage 3 Open the wire clamp 4 Connect the interconnection cable and power supply as follows 50 Hz 220 240 V c d f a b e a Interconnection cable b Pow...

Страница 51: ...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 finishing tape 1 Insulate and fix...

Страница 52: ...e operation range will expand to 15 C The facility mode will stop if the outdoor temperature drops below 20 C and resume when the temperature rises again 1 2 3 J5 J6 J8 J9 J11 J12 6V R714 R713 R712 R7...

Страница 53: ...54 12 5 To perform a test run 54 12 6 Starting up the outdoor unit 55 12 1 Overview Commissioning This chapter describes what you have to do and know to commission the system after it is installed Ty...

Страница 54: ...switch box There are NO damaged components or squeezed pipes on the inside of the indoor and outdoor units There are NO refrigerant leaks The refrigerant pipes gas and liquid are thermally insulated T...

Страница 55: ...select the highest programmable temperature Test run can be disabled if necessary 2 When the test run is finished set the temperature to a normal level In cooling mode 26 28 C in heating mode 20 24 C...

Страница 56: ...ar 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 documentation at the URL mentioned e...

Страница 57: ...r maintenance intervals 14 1 Overview Maintenance and service This chapter contains information about Maintenance safety precautions The yearly maintenance of the outdoor unit 14 2 Maintenance safety...

Страница 58: ...14 4 About the compressor When servicing the compressor keep in mind following precautions DANGER RISK OF ELECTROCUTION Use this compressor on a grounded system only Turn the power off before servici...

Страница 59: ...ective 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 valu...

Страница 60: ...nit is NOT earthed correctly Check and correct the connection of the earth wiring 15 3 5 Symptom Unit does NOT function or burn damage Possible causes Corrective action The wiring was NOT performed in...

Страница 61: ...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 into the operat...

Страница 62: ...ON OFF switch for at least 5 seconds Result Operation will start INFORMATION Forced cooling stops automatically after 15 minutes 2 To stop operation sooner press the ON OFF switch 16 3 2 To start and...

Страница 63: ...d For applied parts 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 c...

Страница 64: ...P LED 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 Magneti...

Страница 65: ...sensor high S NPL Pressure sensor low S PH HPS Pressure switch high 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...

Страница 66: ...uT 7 9 CuT 9 5 CuT 9 5 CuT 12 7 CuT 9 5 CuT 9 5 CuT 9 5 CuT 6x7 0 CuT HPS 6 4 CuT k 12 7 CuT 6x3 2 CuT 6 4 CuT f h i j e a Field piping liquid l Accumulator b Field piping gas m Muffler c Liquid stop...

Страница 67: ...r 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 instructio...

Страница 68: ...4P518023 11H 2021 03 Copyright 2021 Daikin Verantwortung f r Energie und Umwelt...

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