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1 General safety precautions

Installer and user reference guide

4

RXYSQ4~6TAY1B

VRV IV-S system air conditioner

4P482257-1 – 2017.03

Symbol

Explanation

Before installation, read the installation and
operation manual, and the wiring instruction sheet.

Before performing maintenance and service tasks,
read the service manual.

For more information, see the installer and user
reference guide.

1.2

For the user

▪ If you are not sure how to operate the unit, contact your installer.

▪ This  appliance  can  be  used  by  children  aged  from  8  years  and

above  and  persons  with  reduced  physical,  sensory  or  mental
capabilities or lack of experience and knowledge if they have been
given supervision or instruction concerning use of the appliance in
a  safe  way  and  understand  the  hazards  involved.  Children  shall
not play with the appliance. Cleaning and user maintenance shall
not be made by children without supervision.

WARNING

To prevent electric shocks or fire:

▪ Do NOT rinse the unit.

▪ Do NOT operate the unit with wet hands.

▪ Do NOT place any objects containing water on the unit.

NOTICE

▪ Do  NOT  place  any  objects  or  equipment  on  top  of  the

unit.

▪ Do NOT sit, climb or stand on the unit.

▪ Units are marked with the following symbol:

This  means  that  electrical  and  electronic  products  may  not  be
mixed  with  unsorted  household  waste.  Do  NOT  try  to  dismantle
the  system  yourself:  the  dismantling  of  the  system,  treatment  of
the  refrigerant,  of  oil  and  of  other  parts  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  is  disposed  of
correctly, you will help to prevent potential negative consequences
for  the  environment  and  human  health.  For  more  information,
contact your installer or local authority.

▪ Batteries are marked with the following symbol:

This  means  that  the  batteries  may  not  be  mixed  with  unsorted
household  waste.  If  a  chemical  symbol  is  printed  beneath  the
symbol,  this  chemical  symbol  means  that  the  battery  contains  a
heavy metal above a certain concentration.
Possible chemical symbols are: Pb: lead (>0.004%).
Waste batteries must be treated at a specialized treatment facility
for  reuse.  By  ensuring  waste  batteries  are  disposed  of  correctly,
you  will  help  to  prevent  potential  negative  consequences  for  the
environment and human health.

1.3

For the installer

1.3.1

General

If  you  are  not  sure  how  to  install  or  operate  the  unit,  contact  your
dealer.

NOTICE

Improper  installation  or  attachment  of  equipment  or
accessories  could  result  in  electric  shock,  short-circuit,
leaks,  fire  or  other  damage  to  the  equipment.  Only  use
accessories,  optional  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 Daikin documentation).

CAUTION

Wear  adequate  personal  protective  equipment  (protective
gloves,  safety  glasses,…)  when  installing,  maintaining  or
servicing the system.

WARNING

Tear apart and throw away plastic packaging bags so that
nobody,  especially  children,  can  play  with  them.  Possible
risk: suffocation.

DANGER: RISK OF BURNING

▪ Do  NOT  touch  the  refrigerant  piping,  water  piping  or

internal parts during and immediately after operation. It
could  be  too  hot  or  too  cold.  Give  it  time  to  return  to
normal  temperature.  If  you  must  touch  it,  wear
protective gloves.

▪ Do NOT touch any accidental leaking refrigerant.

WARNING

Provide adequate measures to prevent that the unit can be
used  as  a  shelter  by  small  animals.  Small  animals  that
make contact with electrical parts can cause malfunctions,
smoke or fire.

CAUTION

Do NOT touch the air inlet or aluminium fins of the unit.

NOTICE

▪ Do  NOT  place  any  objects  or  equipment  on  top  of  the

unit.

▪ Do NOT sit, climb or stand on the unit.

NOTICE

Works  executed  on  the  outdoor  unit  are  best  done  under
dry weather conditions to avoid water ingress.

In  accordance  with  the  applicable  legislation,  it  might  be  necessary
to provide a logbook with the product containing at least: information
on maintenance, repair work, results of tests, stand-by periods,…

Also,  at  least,  following  information  must  be  provided  at  an
accessible place at the product:

▪ Instructions for shutting down the system in case of an emergency

▪ Name and address of fire department, police and hospital

▪ Name,  address  and  day  and  night  telephone  numbers  for

obtaining service

In Europe, EN378 provides the necessary guidance for this logbook.

1.3.2

Installation site

▪ Provide  sufficient  space  around  the  unit  for  servicing  and  air

circulation.

▪ Make  sure  the  installation  site  withstands  the  unit's  weight  and

vibration.

Summary of Contents for RXYSQ5TAY1B

Page 1: ...Installer and user reference guide VRV IV S system air conditioner English Installer and user reference guide VRV IV S system air conditioner RXYSQ4TAY1B RXYSQ5TAY1B RXYSQ6TAY1B...

Page 2: ...6 4 5 Using the stop valve and service port 17 6 4 6 To remove the pinched pipes 18 6 4 7 To connect the refrigerant piping to the outdoor unit 19 6 4 8 To connect the refrigerant branching kit 20 6 5...

Page 3: ...not work 53 20 2 3 Symptom The fan strength does not correspond to the setting 54 20 2 4 Symptom The fan direction does not correspond to the setting 54 20 2 5 Symptom White mist comes out of a unit...

Page 4: ...ste batteries are disposed of correctly you will help to prevent potential negative consequences for the environment and human health 1 3 For the installer 1 3 1 General If you are not sure how to ins...

Page 5: ...ave to operate WARNING Always recover the refrigerant Do NOT release them directly into the environment Use a vacuum pump to evacuate the installation NOTICE After all the piping has been connected ma...

Page 6: ...tor Failure to do so may cause electric 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 unnec...

Page 7: ...hat you have to do after the box with the outdoor unit is delivered on site It contains information about Unpacking and handling the units Removing the accessories from the units Keep the following in...

Page 8: ...utdoor installation and aimed for air to air heat pump applications Specification RXYSQ4 6 Capacity Heating 14 2 18 0 kW Cooling 12 1 15 5 kW Ambient design temperature Heating 20 15 5 C WB Cooling 5...

Page 9: ...g works where a lot of dust is created the unit must be covered Choose the installation location with sufficient place for carrying the unit in and out of the site 5 2 1 Installation site requirements...

Page 10: ...the outdoor unit is exposed to direct sea winds install a windbreaker Height of windbreaker 1 5 height of outdoor unit Mind the service space requirements when installing the windbreaker a b c d c d...

Page 11: ...d leak The unit of measurement of the concentration is kg m3 the weight in kg of the refrigerant gas in 1 m3 volume of the occupied space Compliance to the local applicable regulations and standards f...

Page 12: ...6 4 mm 1 4 9 5 mm 3 8 12 7 mm 1 2 Annealed O 0 80 mm t 15 9 mm 5 8 Annealed O 0 99 mm 19 1 mm 3 4 22 2 mm 7 8 Half hard 1 2H 0 80 mm a Depending on the applicable legislation and the unit s maximum w...

Page 13: ...ge 12 Refnet joint at first branch counting from outdoor unit When using refnet joints at the first branch counted from the outdoor unit side choose from the following table in accordance with the cap...

Page 14: ...imum height difference indoor indoor Examples H2 Limit 15 m 15 m Maximum height difference outdoor BP Example 2 H3 Limit N A 30 m Maximum height difference BP BP Example 2 H4 Limit N A 15 m Maximum he...

Page 15: ...r and all indoors 600 m If the total transmission wiring exceeds these limits it may result in communication error 6 Installation 6 1 Overview Installation This chapter describes what you have to do a...

Page 16: ...in order to avoid ice accumulation Prepare a water drainage channel around the foundation to drain waste water surrounding the unit Avoid drain water flowing over the footpath so that it does not beco...

Page 17: ...egardless of the period INFORMATION Do NOT open the refrigerant stop valve before checking the refrigerant piping When you need to charge additional refrigerant it is recommended to open the refrigera...

Page 18: ...ing the service port make sure to tighten the service port cover securely For the tightening torque refer to the table below Check for refrigerant leaks after tightening the service port cover Tighten...

Page 19: ...a with screw b a b 2 Choose a piping route a b c or d a b c d 3 If you have chosen the downwards piping route Drill a 4 and remove the knockout hole b Cut out the slits c with a metal saw c c b a 4 6...

Page 20: ...ll initialise This means that they will close Leak test and vacuum drying of field piping and indoor units is impossible when this happens Therefore there will be explained 2 methods for initial insta...

Page 21: ...est for leaks by applying a bubble test solution to all piping connections 3 Discharge all nitrogen gas NOTICE Make sure to use a recommended bubble test solution from your wholesaler Do not use soap...

Page 22: ...perly NOTICE Be sure to turn on the power 6 hours before operation in order to have power running to the crankcase heater and to protect the compressor NOTICE If operation is performed within 12 minut...

Page 23: ...refrigerant in manual additional refrigerant charge mode instructions Charging refrigerant in manual additional refrigerant charge mode The remaining additional refrigerant charge can be charged by op...

Page 24: ...onsists 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 e...

Page 25: ...tor Install power cables at least 1 metre away from televisions or radios to prevent interference Depending on the radio waves a distance of 1 metre may not be sufficient WARNING After finishing the e...

Page 26: ...ical wiring on the outdoor unit NOTICE Follow the wiring diagram delivered with the unit located at the inside of the service cover Make sure the electrical wiring does NOT obstruct proper reattachmen...

Page 27: ...e as shown in figure below a b c d e a Liquid pipe b Gas pipe c Insulator d Transmission wiring F1 F2 e Finishing tape 6 9 2 To close the outdoor unit NOTICE When closing the outdoor unit cover make s...

Page 28: ...SET For field setting BS3 RETURN For field setting BS4 TEST For test operation BS5 RESET For resetting the address when the wiring is changed or when an additional indoor unit is installed Display Th...

Page 29: ...lay Mode 2 You can change the value of setting 2 8 Te target temperature during cooling operation to 4 8 C as follows Action Button display 1 Start from the default situation 2 Select mode 2 BS1 5 s 3...

Page 30: ...ecked again through this monitoring settings For the content or reason behind the malfunction code see 11 3 Solving problems based on error codes on page 38 where most relevant malfunction codes are e...

Page 31: ...ow noise setting and level during night time By changing this setting you activate the automatic low noise operation function of the unit and define the level of operation Depending on the chosen leve...

Page 32: ...y consumption and comfort No matter which control is selected variations on the behaviour of the system are still possible due to protection controls to keep the unit operating under reliable conditio...

Page 33: ...se of cooling operation the evaporating temperature is allowed to go down to 6 C on temporary base depending on the situation In case of heating operation the condense temperature is allowed to go up...

Page 34: ...orating temperature Quick Powerful Mild Room temperature evolution A B C D E F A Indoor unit set temperature B Operation start C Operating time D Mild E Quick F Powerful 7 3 4 Example Automatic mode d...

Page 35: ...ting up the unit Field wiring Be sure that the field wiring has been carried out according to the instructions described in the chapter 6 8 Connecting the electrical wiring on page 24 according to the...

Page 36: ...essure equalisation Cooling start up control Cooling stable condition Communication check Stop valve check Pipe length check Pump down operation Unit stop INFORMATION During the test operation it is n...

Page 37: ...al operation will not be performed For details refer to the wiring diagram labelled on the back of the service cover Pay attention to the fan It is dangerous to inspect the unit while the fan is runni...

Page 38: ...vercharge Open the stop valve on both the gas and liquid side Recalculate the required amount of refrigerant from the piping length and correct the refrigerant charge level by recovering any excessive...

Page 39: ...or unit is connected correctly Faulty wiring to Q1 Q2 Check Q1 Q2 wiring System mismatch Wrong type of indoor units combined R410A R407C RA etc Indoor unit malfunction Check if other indoor units have...

Page 40: ...diagram Wiring diagram 13 2 Dimensions Outdoor unit dimensions in mm 191 142 67 95 940 223 30 16 55 350 160 95 61 55 145 160 30 68 89 84 68 19 48 44 53 90 13 67 80 54 395 47 52 1430 54 95 60 320 89 6...

Page 41: ...B HU HB HD HD HU 100 1000 1000 500 HU HD HU 200 1000 1000 500 HD HU 200 1700 1000 500 HU a b 100 100 c d e eB eD A B C D E HB HD A B C 200 300 1000 A B C E 200 300 1000 1000 500 D 1000 D E 1000 1000 5...

Page 42: ...A1 If there is danger of drainage dripping and freezing between the upper and lower units A2 Then install a roof between the upper and lower units Install the upper unit high enough above the lower u...

Page 43: ...erant charge f Stop valve gas g Stop valve liquid h Cable tie mountings to fix the field wiring with cable ties to ensure stress relief i Subcool heat exchanger j Accumulator k Fan A1P Printed circuit...

Page 44: ...g Heat exchanger h Service port high pressure i Oil separator j Capillary tube 2 k Service port refrigerant charge M1C Compressor M1F M2F Fan motor R1T Thermistor air R2T Thermistor suction 1 R3T The...

Page 45: ...HT RED TO MULTI UNIT TO OUT D TO IN D INDOOR OUTDOOR Note 5 TERMINAL OF M1C LAYOUTOF M1F M2F M1C L1R EL COMPO BOX DETAILOF EL COMPO BOX ARROW VIEW OUTER SHELL FRONT MARK BLU MARK RED MARK RED EL COMPO...

Page 46: ...stor air R2T Thermistor suction 1 R3T Thermistor discharge R4T Thermistor heat exchanger de icer R5T Thermistor subcool heat exchanger R6T Thermistor liquid pipe R7T Thermistor suction 2 S1NPH High pr...

Page 47: ...ired to connect Residential Air RA or Sky Air SA direct expansion DX indoor units f Residential Air RA direct expansion DX indoor units g User interface wireless dedicated depending on indoor unit typ...

Page 48: ...ation the refrigerant cycle will reverse and energy from inside the building will be used to defrost the outdoor unit coil The indoor unit will indicate defrost operation on the displays Hot start In...

Page 49: ...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...

Page 50: ...ation methods Basic The refrigerant temperature is fixed independent from the situation It corresponds to the standard operation which is known and can be expected from under previous VRV systems Auto...

Page 51: ...unit Do not use the system until a service person confirms that the portion where the refrigerant leaks is repaired 19 4 After sales service and warranty 19 4 1 Warranty period This product includes...

Page 52: ...oting 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 Leavi...

Page 53: ...on outdoor De icing temperature sensor malfunction outdoor Liquid temperature sensor after subcool HE malfunction outdoor Liquid temperature sensor coil malfunction outdoor Gas temperature sensor afte...

Page 54: ...stop When the drain pump optional accessories is in operation this noise is heard A pishi pishi squeaking sound is heard when the system stops after heating operation Expansion and contraction of pla...

Page 55: ...relevant and applicable for a certain product or domain Service company Qualified company which can perform or coordinate the required service to the product Installation manual Instruction manual sp...

Page 56: ...4P482257 1 2017 03 Copyright 2017 Daikin...

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