background image

8 Troubleshooting

Installation and operation manual

19

RXYSA4~6A7V/Y1B
VRV 5-S system air conditioner
4P600329-1A – 2020.01

WARNING

The  refrigerant  inside  the  unit  is  mildly  flammable,  but
normally  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  heating  devices,  ventilate  the
room,  and  contact  the  dealer  where  you  purchased  the
unit.

Do  NOT  use  the  unit  until  a  service  person  confirms  that
the  part  from  which  the  refrigerant  leaked  has  been
repaired.

7.2

After-sales service and warranty

7.2.1

Warranty period

▪ This  product  includes  a  warranty  card  that  was  filled  in  by  the

dealer  at  the  time  of  installation.  The  completed  card  has  to  be
checked by the customer and stored carefully.

▪ If repairs to the product are necessary within the warranty period,

contact your dealer and keep the warranty card at hand.

7.2.2

Recommended maintenance and
inspection

Since  dust  collects  when  using  the  unit  for  several  years,
performance  of  the  unit  will  deteriorate  to  some  extent.  As  taking
apart and cleaning interiors of units requires technical expertise and
in  order  to  ensure  the  best  possible  maintenance  of  your  units,  we
recommend to enter into a maintenance and inspection contract on
top  of  normal  maintenance  activities.  Our  network  of  dealers  has
access  to  a  permanent  stock  of  essential  components  in  order  to
keep your unit in operation as long as possible. Contact your dealer
for more information.

When asking your dealer for an intervention, always state:

▪ The complete model name of the unit.

▪ The manufacturing number (stated on the nameplate of the unit).

▪ The installation date.

▪ The symptoms or malfunction, and details of the defect.

WARNING

▪ Do not modify, disassemble, remove, reinstall or repair

the unit yourself as incorrect dismantling or installation
may  cause  an  electric  shock  or  fire.  Contact  your
dealer.

▪ In case of accidental refrigerant leaks, make sure there

are  no  naked  flames.  The  refrigerant  itself  is  entirely
safe,  non-toxic  and  mildly  flammable,  but  it  will
generate  toxic  gas  when  it  accidentally  leaks  into  a
room  where  combustible  air  from  fan  heaters,  gas
cookers,  etc.  is  present.  Always  have  qualified  service
personnel  confirm  that  the  point  of  leakage  has  been
repaired or corrected before resuming operation.

8

Troubleshooting

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.).

Leaving  the  unit  running  under  such  circumstances  may
cause breakage, electric shock or fire. Contact your dealer.

The system MUST be repaired by a qualified service person.

Malfunction

Measure

If a safety device such as a fuse, a
breaker or an earth leakage breaker
frequently actuates or the ON/OFF
switch does NOT properly work.

Turn OFF the main power
switch.

The operation switch does NOT work
well.

Turn OFF the power
supply.

If the user interface display indicates the
unit number, the operation lamp flashes
and the malfunction code appears.

Notify your installer and
report the malfunction
code.

If  the  system  does  NOT  operate  properly  except  for  the  above
mentioned cases and none of the above mentioned malfunctions is
evident,  investigate  the  system  in  accordance  with  the  following
procedures.

Malfunction

Measure

If a refrigerant leak
occurs (error code 

/

)

▪ Actions  will  be  taken  by  the  system.  Do

NOT turn OFF the power supply.

▪ Notify  your  installer  and  report  the

malfunction code.

If the system does not
operate at all.

▪ Check  if  there  is  no  power  failure.  Wait

until  power  is  restored.  If  power  failure
occurs  during  operation,  the  system
automatically  restarts  immediately  after
power is restored.

▪ Check if no fuse has blown or breaker is

activated.  Change  the  fuse  or  reset  the
breaker if necessary.

If the system goes into
fan only operation, but
as soon as it goes into
heating or cooling
operation, the system
stops.

▪ Check  if  air  inlet  or  outlet  of  outdoor  or

indoor  unit  is  not  blocked  by  obstacles.
Remove  any  obstacles  and  make  sure
the air can flow freely.

▪ Check if the user interface display shows

  on  the  home  screen.  Refer  to  the

installation 

and 

operation 

manual

delivered with the indoor unit.

The system operates
but cooling or heating
is insufficient.

▪ Check  if  air  inlet  or  outlet  of  outdoor  or

indoor  unit  is  not  blocked  by  obstacles.
Remove  any  obstacles  and  make  sure
the air can flow freely.

▪ Check if the air filter is not clogged (refer

to  "Maintenance"  in  the  indoor  unit
manual).

▪ Check the temperature setting.

▪ Check the fan speed setting on your user

interface.

▪ Check for open doors or windows. Close

doors and windows to prevent wind from
coming in.

▪ Check if there are too many occupants in

the room during cooling operation. Check
if  the  heat  source  of  the  room  is
excessive.

▪ Check  if  direct  sunlight  enters  the  room.

Use curtains or blinds.

▪ Check if the air flow angle is proper.

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...

Page 46: ......

Page 47: ......

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

Reviews: