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7 Maintenance and service

Installation and operation manual

18

RXYSA4~6A7V/Y1B

VRV 5-S system air conditioner

4P600329-1A – 2020.01

▪ Automatic 

 and desired position  .

WARNING

Never touch the air outlet or the horizontal blades while the
swing  flap  is  in  operation.  Fingers  may  become  caught  or
the unit may break down.

NOTICE

▪ The  movable  limit  of  the  flap  is  changeable.  Contact

your dealer for details. (only for double-flow, multi-flow,
corner, ceiling-suspended and wall-mounted).

▪ Avoid operating in the horizontal direction 

. It may

cause dew or dust to settle on the ceiling or flap.

6.5

Setting the master user interface

6.5.1

About setting the master user interface

b

a

c

d

f

e

d

c

b

b

c

d

a

Heat pump outdoor unit

b

Refrigerant piping

c

VRV direct expansion (DX) indoor unit

d

Remote controller in normal mode

e

Remote controller in alarm only mode

f

Remote controller in supervisor mode (mandatory in
some situations)

When  the  system  is  installed  as  shown  in  the  figure  above,  it  is
necessary to designate one of the user interfaces as the master user
interface.

The  displays  of  slave  user  interfaces  show 

  (change-over

under  centralised  control)  and  slave  user  interfaces  automatically
follow the operation mode directed by the master user interface.

Only the master user interface can select heating or cooling mode.

6.5.2

To designate the master user interface

1

Press the operation mode selector button of the current master
user interface for 4 seconds. In case this procedure was not yet
performed,  the  procedure  can  be  executed  on  the  first  user
interface operated.

Result: 

The  display  showing 

  (change-over  under

centralised control) of all slave user interfaces connected to the
same outdoor unit flashes.

2

Press  the  operation  mode  selector  button  of  the  controller  that
you wish to designate as the master user interface.

Result: 

Designation  is  completed.  This  user  interface  is

designated  as  the  master  user  interface  and  the  display

showing 

  (change-over  under  centralised  control)

vanishes.  The  displays  of  other  user  interfaces  show 
(change-over under centralised control).

7

Maintenance and service

NOTICE

Never  inspect  or  service  the  unit  by  yourself.  Ask  a
qualified service person to perform this work.

WARNING

The  unit  is  equipped  with  a  refrigerant  leak  detection
system for safety.

To  be  effective,  the  unit  MUST  be  electrically  powered  at
all times after installation, except for maintenance.

WARNING

Never replace a fuse with a fuse of a wrong ampere ratings
or  other  wires  when  a  fuse  blows  out.  Use  of  wire  or
copper wire may cause the unit to break down or cause a
fire.

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.

CAUTION

After  a  long  use,  check  the  unit  stand  and  fitting  for
damage. If damaged, the unit may fall and result in injury.

NOTICE

Do  NOT  wipe  the  controller  operation  panel  with  benzine,
thinner,  chemical  dust  cloth,  etc.  The  panel  may  get
discoloured  or  the  coating  peeled  off.  If  it  is  heavily  dirty,
soak  a  cloth  in  water-diluted  neutral  detergent,  squeeze  it
well  and  wipe  the  panel  clean.  Wipe  it  with  another  dry
cloth.

7.1

About the refrigerant

This  product  contains  fluorinated  greenhouse  gases.  Do  NOT  vent
gases into the atmosphere.

Refrigerant type: R32

Global warming potential (GWP) value: 675

NOTICE

Applicable  legislation  on 

fluorinated  greenhouse  gases

requires  that  the  refrigerant  charge  of  the  unit  is  indicated
both in weight and CO

2

 equivalent.

Formula  to  calculate  the  quantity  in  CO

2

  equivalent

tonnes:

  GWP  value  of  the  refrigerant  ×  total  refrigerant

charge [in kg] / 1000

Please contact your installer for more information.

WARNING: MILDLY FLAMMABLE MATERIAL

The refrigerant inside this unit is mildly flammable.

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).

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.

Summary of Contents for VRV 5-S Series

Page 1: ...llation and operation manual VRV 5 S system air conditioner English Installation and operation manual VRV 5 S system air conditioner RXYSA4A7V1B RXYSA5A7V1B RXYSA6A7V1B RXYSA4A7Y1B RXYSA5A7Y1B RXYSA6A...

Page 2: ...HD HU 200 1000 1000 500 HD HU A B C 200 1 300 1000 A B C E 200 1 300 1000 1000 500 D 1000 D E 1000 1000 500 B D HD HU 300 1000 250 1500 300 1500 B D E HB HU 300 1000 1000 500 HU HB HU 300 1250 1000 50...

Page 3: ...30 7 d 92 36 0 c 31 0 d 93 36 4 c 31 4 d 94 36 7 c 31 7 d 95 37 0 c 32 0 d 96 37 4 c 32 4 d 97 37 7 c 32 7 d 98 38 0 c 33 0 d 99 38 4 c 33 4 d 100 38 7 c 33 7 d 63 26 2 c 21 2 d 64 26 6 c 21 6 d 65 26...

Page 4: ...1 12 13 14 15 16 17 Direktiver med senere ndringer Direktiv med f retagna ndringar Direktiver med foretatte endringer Direktiivej sellaisina kuin ne ovat muutettuina v platn m zn n Smjernice kako je i...

Page 5: ...vastaava kyll stysl mp tila M C Kylm aine N Varmuuspainelaitteen asetus P bar Valmistusnumero ja valmistusvuosi katso mallin nimikilpi Maxim ln p pustn tlak PS K bar Minim ln maxim ln p pustn teplota...

Page 6: ...ioners Indoor unit outdoor unit 21 8 2 11 Symptom Noise of air conditioners Outdoor unit 21 8 2 12 Symptom Dust comes out of the unit 21 8 2 13 Symptom The units can give off odours 21 8 2 14 Symptom...

Page 7: ...rope com support and manuals product information Latest revisions of the supplied documentation may be available on the regional Daikin website or via your dealer The original documentation is written...

Page 8: ...nce with the instructions from this manual See 15 Electrical installation 431 WARNING ALWAYS use multicore cable for power supply cables WARNING If the power supply has a missing or wrong N phase equi...

Page 9: ...se potential sources of ignition in searching for or detection of refrigerant leaks NOTICE Do NOT re use joints which have been used already Joints made in installation between parts of refrigerant sy...

Page 10: ...ecautions it is mandatory to install one of the following devices at a location with 24 hour monitoring a supervisor remote controller or an iTM with external alarm via WAGO module Note The remote con...

Page 11: ...or room 2 1 3 To determine the charge limitations 1 Determine the area of the smallest room in order to derive the total refrigerant charge limit in the system The room area can be determined by proje...

Page 12: ...for room with the smallest area on the lowest underground floor The maximum allowable charge has to be assessed for the room with the smallest room area in both the lowest underground floor and the o...

Page 13: ...h c to check the maximum allowed charge for a room of 16 m with a ceiling mounted unit 10 4 kg Use graph d to check the maximum allowed charge for the smallest room 28 m of the lowest underground floo...

Page 14: ...must be done by an authorized installer and must comply with applicable legislation Units must be treated at a specialized treatment facility for reuse recycling and recovery By ensuring this product...

Page 15: ...4 About the system The VRV 5 S uses R32 refrigerant which is rated as A2L and is mildly flammable For compliance with the requirements for enhanced tightness refrigerating systems and IEC60335 2 40 th...

Page 16: ...may stop immediately This is not a malfunction 6 2 3 About the heating operation It may take longer to reach the set temperature for general heating operation than for cooling operation The following...

Page 17: ...g NOTICE Do not turn off power immediately after the unit stops but wait for at least 5 minutes 6 3 3 To use the dry program WITH cool heat changeover remote control switch To start 1 Select cooling o...

Page 18: ...e displays of other user interfaces show change over under centralised control 7 Maintenance and service NOTICE Never inspect or service the unit by yourself Ask a qualified service person to perform...

Page 19: ...leshooting If one of the following malfunctions occur take the measures shown below and contact your dealer WARNING Stop operation and shut off the power if anything unusual occurs burning smells etc...

Page 20: ...r malfunction Discharge temperature sensor malfunction outdoor Suction temperature sensor malfunction outdoor De icing temperature sensor malfunction outdoor Liquid temperature sensor after subcool HE...

Page 21: ...tween the units causing them to stop Operation automatically restarts when the noise ceases 8 2 9 Symptom Noise of air conditioners Indoor unit A zeen sound is heard immediately after the power supply...

Page 22: ...ecycling and recovery For the installer 11 About the box 11 1 Outdoor unit 11 1 1 To unpack the outdoor unit 2 1 11 1 2 To handle the outdoor unit CAUTION To avoid injury do NOT touch the air inlet or...

Page 23: ...sound pressure level is less than 70 dBA CAUTION Appliance NOT accessible to the general public install it in a secured area protected from easy access This unit is suitable for installation in a comm...

Page 24: ...l the outdoor unit 4 M12 12 3 3 To provide drainage INFORMATION If necessary you can use a drain pan field supply to prevent drain water from dripping NOTICE If the unit CANNOT be installed fully leve...

Page 25: ...the piping size Determine the proper size using the following tables and reference figure only for indication A B 1 B 2 C 1 C 2 C 3 C 4 1 3 1 3 2 3 3 3 4 VRV DX 2 2 2 1 Outdoor unit 2 Refrigerant bra...

Page 26: ...ollowing table in accordance with the total capacity of all the indoor units connected below the refnet header Indoor unit capacity index Refrigerant branch kit 182 KHRQ22M29H INFORMATION Maximum 8 br...

Page 27: ...sing electrical wiring through the knockout holes wrap the wiring with protective tape to prevent damage 3 Do the following Connect the accessory liquid pipe a to the liquid stop valve brazing Connect...

Page 28: ...test solution from your wholesaler Do not use soap water which may cause cracking of flare nuts soap water may contain salt which absorbs moisture that will freeze when the piping gets cold and or le...

Page 29: ...re shall be taken not to overfill the refrigerating system NOTICE Prior to charging the system it shall be pressure tested with the appropriate purging gas The system shall be leak tested on completio...

Page 30: ...s 437 Result The unit will start operation INFORMATION The manual refrigerant charge operation will automatically stop within 30 minutes If charging is not completed after 30 minutes perform the addit...

Page 31: ...iring regulations WARNING ALWAYS use multicore cable for power supply cables 15 1 About electrical compliance Equipment complying with EN IEC 61000 3 12 provided that the short circuit power Ssc is gr...

Page 32: ...th leakage circuit breaker b Fuse c Power supply cable 4 Fix the cables power supply and interconnection cable with a cable tie to the stop valve attachment plate and route the wiring according to the...

Page 33: ...to SVS output device Specifications of the SVS output Maximum voltage 40 VDC Maximum current 0 025 A Polarity of terminal 1 Polarity of terminal 2 It is mandatory to use a surge killer to protect the...

Page 34: ...ed above the indoor unit cover the stop valves f see above with sealing material to prevent condensed water on the stop valves from moving to the indoor unit NOTICE Any exposed piping might cause cond...

Page 35: ...e also 17 1 4 To access mode 1 or 2 436 17 1 5 To use mode 1 436 17 1 6 To use mode 2 436 17 1 7 Mode 1 Monitoring settings 436 17 1 8 Mode 2 Field settings 437 17 1 2 To access the field setting comp...

Page 36: ...atus of the unit What How Changing and accessing the setting in mode 1 Once mode 1 is selected push BS1 one time you can select the wanted setting It is done by pushing BS2 Accessing the selected sett...

Page 37: ...remote controller connected to the system 1 Supervisor remote controller connected to system 18 Commissioning NOTICE General commissioning checklist Next to the commissioning instructions in this cha...

Page 38: ...ctions for equipment using R32 refrigerant 49 Field settings Make sure all field settings you want are set See 17 1 Making field settings 434 Installation date and field setting Be sure to keep a reco...

Page 39: ...display and on the user interface of the indoor unit 19 1 1 Error codes Overview In case other error codes appear contact your dealer Main code Cause Solution SVEO a SVS b The R32 sensor in one of the...

Page 40: ...ly voltage Check if power supply is within range Insufficient supply voltage Check if the supply voltage is supplied properly Malfunction code System test run not yet executed system operation not pos...

Page 41: ...0 11 and audible alarm and red warning signal is generated from this remote controller The unit number is displayed on this remote controller k Error code U9 02 is displayed on this remote controller...

Page 42: ...s walls baffle plates E Obstacle roof a b c d e Minimum service space between the unit and obstacles A B C D and E eB Maximum distance between the unit and the edge of obstacle E in the direction of o...

Page 43: ...rheat g One way valve R7T Thermistor heat exchanger h Pressure relief valve R10T Thermistor fin i PCB cooling R21T Thermistor discharge j Double tube heat exchanger k Distributor Refrigerant flow l He...

Page 44: ...PTC thermistor S1NPH High pressure sensor S1NPL Low pressure sensor S1PH High pressure switch S1S Air control switch option S2S Cool heat selector switch option SEG A1P 7 segment display SFB Mechanic...

Page 45: ...itch option SEG A1P 7 segment display SFB Mechanical ventilation error input field supply V D Diode module V1R V2R A1P IGBT power module V3R A1P Diode module X A PCB connector X M Terminal strip X Y C...

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Page 48: ...4P600329 1A 2020 01 Copyright 2020 Daikin 4P600329 1 A 0000000X Verantwortung f r Energie und Umwelt...

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