Daikin VRV IV+ Page 113 Installer And User Reference Manual Download | Manualshive

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9

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Maintenance and service

Installer and user reference guide

113

RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ heat pump
4P546228-1A – 2019.10

9 Maintenance and service

NOTICE

Maintenance MUST be done by an authorized installer or service agent.

We recommend performing maintenance at least once a year. However, applicable
legislation might require shorter maintenance intervals.

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

9.1 Overview: Maintenance and service

This chapter contains information about:

▪

Preventing electrical hazards when maintaining and servicing the system

▪

The refrigerant recovery operation

9.2 Maintenance safety precautions

DANGER: RISK OF ELECTROCUTION

DANGER: RISK OF BURNING

NOTICE: Risk of electrostatic discharge

Before performing any maintenance or service work, touch a metal part of the unit in
order to eliminate static electricity and to protect the PCB.

9.2.1 To prevent electrical hazards

When performing service to inverter equipment:

1

Do NOT open the electrical component box cover for 10 minutes after turning
off the power supply.

2

Measure the voltage between terminals on the terminal block for power
supply with a tester and confirm that the power supply is shut off. In addition,
measure points as shown in the figure, with a tester and confirm that the
voltage of the capacitor in the main circuit is less than 50 V DC.

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Summary of Contents for VRV IV+

Page 1: ...mp RYYQ8U7Y1B RYYQ10U7Y1B RYYQ12U7Y1B RYYQ14U7Y1B RYYQ16U7Y1B RYYQ18U7Y1B RYYQ20U7Y1B RYMQ8U7Y1B RYMQ10U7Y1B RYMQ12U7Y1B RYMQ14U7Y1B RYMQ16U7Y1B RYMQ18U7Y1B RYMQ20U7Y1B RXYQ8U7Y1B RXYQ10U7Y1B RXYQ12U7Y1B RXYQ14U7Y1B RXYQ16U7Y1B RXYQ18U7Y1B RXYQ20U7Y1B ...

Page 2: ...ossible options for the outdoor unit 23 5 Preparation 25 5 1 Overview Preparation 25 5 2 Preparing the installation site 25 5 2 1 Installation site requirements of the outdoor unit 25 5 2 2 Additional installation site requirements of the outdoor unit in cold climates 27 5 2 3 Securing safety against refrigerant leaks 28 5 3 Preparing refrigerant piping 30 5 3 1 Refrigerant piping requirements 30 ...

Page 3: ...ting the electrical wiring 76 6 8 1 Precautions when connecting the electrical wiring 76 6 8 2 Field wiring Overview 77 6 8 3 About the electrical wiring 78 6 8 4 Guidelines when knocking out knockout holes 79 6 8 5 To route and fix the transmission wiring 79 6 8 6 To connect the transmission wiring 80 6 8 7 To finish the transmission wiring 81 6 8 8 To route and fix the power supply 81 6 8 9 To c...

Page 4: ...ontrol switch 144 16 3 3 To use the dry program WITH cool heat changeover remote control switch 144 16 4 Adjusting the air flow direction 145 16 4 1 About the air flow flap 145 16 5 Setting the master user interface 146 16 5 1 About setting the master user interface 146 16 5 2 To designate the master user interface VRV DX and Hydrobox 146 16 5 3 To designate the master user interface VRV DX and RA...

Page 5: ...1 Symptom Noise of air conditioners Outdoor unit 159 19 2 12 Symptom Dust comes out of the unit 159 19 2 13 Symptom The units can give off odours 159 19 2 14 Symptom The outdoor unit fan does not spin 159 19 2 15 Symptom The display shows 88 159 19 2 16 Symptom The compressor in the outdoor unit does not stop after a short heating operation 160 19 2 17 Symptom The inside of an outdoor unit is warm...

Page 6: ...R Indicates a situation that results in death or serious injury DANGER RISK OF ELECTROCUTION Indicates a situation that could result in electrocution DANGER RISK OF BURNING Indicates a situation that could result in burning because of extreme hot or cold temperatures DANGER RISK OF EXPLOSION Indicates a situation that could result in explosion WARNING Indicates a situation that could result in dea...

Page 7: ...it 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 tr...

Page 8: ... 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 WARNING Provide adequate measures to prevent that the unit can be used...

Page 9: ...unction of the equipment In places where there is a risk of fire due to the 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 may cause the refrigerant to leak 1 3 3 Refrigerant If applicable See the installation manual or installer reference guide of y...

Page 10: ...e more than the specified amount of refrigerant When the refrigerant system is to be opened refrigerant MUST be treated according to the applicable legislation WARNING Make sure there is no oxygen in the system Refrigerant may only be charged after performing the leak test and the vacuum drying Possible consequence Self combustion and explosion of the compressor because of oxygen going into the op...

Page 11: ...side the unit can get much higher than that of the room e g 70 C In case of a brine leak hot parts inside the unit can create a hazardous situation WARNING The use and installation of the application MUST comply with the safety and environmental precautions specified in the applicable legislation 1 3 5 Water If applicable See the installation manual or installer reference guide of your application...

Page 12: ...it is compatible with the inverter resistant to high frequency electric noise to avoid unnecessary opening of the earth leakage protector CAUTION When connecting the power supply the earth connection must be made before the current carrying connections are established When disconnecting the power supply the current carrying connections must be separated before the earth connection is The length of...

Page 13: ...ox 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 exists the possibility of reversed phase after a momentary black out and the power goes on and off while the product is operating attach a reversed phase protection circuit locally Running the produc...

Page 14: ...nstallation and operation manual Installation and operation instructions Format Paper in the box of the outdoor unit Installer and user reference guide Preparation of the installation reference data Detailed step by step instructions and background information for basic and advanced usage Format Digital files on http www daikineurope com support and manuals product information Latest revisions of ...

Page 15: ...2 About the documentation Installer and user reference guide 15 RYYQ RYMQ RXYQ8 20U7Y1B VRV IV heat pump 4P546228 1A 2019 10 For the installer ...

Page 16: ...s close as possible to its final installation position to prevent damage during transport When handling the unit take into account the following Fragile handle the unit with care Keep the unit upright in order to avoid compressor damage Prepare the path along which you want to bring the unit inside in advance Lift the unit preferably with a crane and 2 belts of at least 8 m long as shown in the fi...

Page 17: ...NG SELECTION AND CALCULATION OR HOW TO OPERATE THE LEAK DETECTION FUNCTION PLEASE REFER TO THE INSTALLATION MANUAL 2 RECORD OF ADDITIONAL REFRIGERANT CHARGE AMOUNTAND RESULT OF LEAK CHECK OPERATION REQUEST FOR THE INDICATION OF ADDITIONAL REFRIGERANT CHARGING AND LEAK DETECTION OPERATION RESULT BE SURE TO FILL OUT THE BLANKS WHICH ARE NEEDED FOR AFTER SALE SERVICES 1 CALCULATION OF ADDITIONAL REFR...

Page 18: ...on ID Øa OD Øb 8 25 4 19 1 10 22 2 12 28 6 14 16 18 20 Liquid pipe Front connection ID Øb ID Øa Bottom connection ID Øb ID Øa 8 9 5 10 12 9 5 12 7 14 12 7 16 18 12 7 15 9 20 Equaliser pipe a Front connection ID Øa ID Øb Bottom connection ID Øa OD Øb 8 19 1 10 12 19 1 22 2 14 16 18 25 4 28 6 20 a Only for RYMQ models 3 5 To remove the transportation stay Only for 14 20 HP NOTICE If the unit is oper...

Page 19: ...rence guide 19 RYYQ RYMQ RXYQ8 20U7Y1B VRV IV heat pump 4P546228 1A 2019 10 1 Slightly loosen the fixing nut a 2 Remove the transportation stay b as shown in the figure below 3 Tighten the fixing nut a again 1 3 12 3 N m 2 1 3 12 3 N m 2 a b ...

Page 20: ...u can combine the outdoor units Which outdoor units have to be used as standalone units and which outdoor units can be combined 4 2 Identification label Outdoor unit Location 14 20 HP 8 12 HP Model identification Example R Y Y Q 18 U7 Y1 B Code Explanation R Outdoor air cooled Y Y Heat pump continuous heating X Heat pump no continuous heating Y Y Pair module only a M Multi module only Q Refrigeran...

Page 21: ...stallation and aimed for heat pump applications including air to air and air to water applications These units have in single use heating capacities ranging from 25 to 63 kW and cooling capacities rating from 22 4 to 56 kW In multi combination the heating capacity can go up till 168 kW and in cooling till 150 kW The outdoor unit is designed to work in heating mode at ambient temperatures from 20 C...

Page 22: ...are subject to rules combination between outdoor indoor single outdoor unit use multiple outdoor unit use combinations between indoor units etc mentioned in the technical engineering data 4 5 2 Possible combinations of indoor units In general following type of indoor units can be connected to a VRV IV heat pump system The list is non exhaustive and is depending on both outdoor unit model and indoo...

Page 23: ...24 RXYQ8 16 RYYQ24 RYMQ8 16 RXYQ26 RXYQ12 14 RYYQ26 RYMQ12 14 RXYQ28 RXYQ12 16 RYYQ28 RYMQ12 16 RXYQ30 RXYQ12 18 RYYQ30 RYMQ12 18 RXYQ32 RXYQ16 16 RYYQ32 RYMQ16 16 RXYQ34 RXYQ16 18 RYYQ34 RYMQ16 18 RXYQ36 RXYQ16 20 RYYQ36 RYMQ16 20 RXYQ38 RXYQ8 10 20 RYYQ38 RYMQ8 10 20 RXYQ40 RXYQ10 12 18 RYYQ40 RYMQ10 12 18 RXYQ42 RXYQ10 16 16 RYYQ42 RYMQ10 16 16 RXYQ44 RXYQ12 16 16 RYYQ44 RYMQ12 16 16 RXYQ46 RXY...

Page 24: ...Instructions group or individual can be instructed for low noise operation and power consumption limitation operation PC configurator cable EKPCCAB You can make several commissioning field settings through a personal computer interface For this option EKPCCAB is required which is a dedicated cable to communicate with the outdoor unit The user interface software is available on http www daikineurop...

Page 25: ...In places where there 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 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 soldere...

Page 26: ... the event of a water leak water cannot cause any damage to the installation space and surroundings When installing the unit in a small room take measures in order to keep the refrigerant concentration from exceeding allowable safety limits in the event of a refrigerant leak refer to About safety against refrigerant leaks 428 CAUTION Excessive refrigerant concentrations in a closed room can lead t...

Page 27: ...ength 435 5 2 2 Additional installation site requirements of the outdoor unit in cold climates NOTICE When operating the unit in a low outdoor ambient temperature be sure to follow the instructions described below To prevent exposure to wind and snow install a baffle plate on the air side of the outdoor unit In heavy snowfall areas it is very important to select an installation site where the snow...

Page 28: ...aks About safety against refrigerant leaks The installer and system specialist shall secure safety against leakage according to local regulations or standards The following standards may be applicable if local regulations are not available This system uses R410A as refrigerant R410A itself is an entirely safe non toxic non combustible refrigerant Nevertheless care must be taken to ensure that the ...

Page 29: ...centration level Check the maximum concentration level in accordance with steps 1 to 4 below and take whatever action is necessary to comply 1 Calculate the amount of refrigerant kg charged to each system separately Formula A B C A Amount of refrigerant in a single unit system amount of refrigerant with which the system is charged before leaving the factory B Additional charging amount amount of r...

Page 30: ... installed H Maximum concentration level kg m3 4 Calculate the refrigerant density taking the volume of the room where the indoor unit is installed and the adjacent room Install ventilation openings in the door of adjacent rooms until the refrigerant density is smaller than the maximum concentration level 5 3 Preparing refrigerant piping 5 3 1 Refrigerant piping requirements NOTICE The piping and ...

Page 31: ... in accordance with the outdoor unit total capacity type connected downstream Outdoor unit capacity type HP Piping outer diameter size mm Gas pipe Liquid pipe 8 19 1 9 5 10 22 2 9 5 12 16 28 6 12 7 18 22 28 6 15 9 24 34 9 15 9 26 34 34 9 19 1 36 54 41 3 19 1 D Piping between refrigerant branch kits Choose from the following table in accordance with the indoor unit total capacity type connected dow...

Page 32: ...the length of the piping the capacity may drop but even in such a case the size of the main pipes has to be increased More specifications can be found in the technical engineering data book a d b c a Outdoor unit b Main pipes c Increase if the equivalent piping length is 90 m d First refrigerant branch kit e Indoor unit Size up HP class Piping outer diameter size mm Gas pipe Liquid pipe 8 19 1 22 ...

Page 33: ...t connection on branch selector box BP must be based on the total capacity of the connected indoor units only in case RA DX indoor units are connected Total capacity index of connected indoor units Piping outer diameter size mm Gas pipe Liquid pipe 20 62 12 7 6 4 63 149 15 9 9 5 150 208 19 1 Example Downstream capacity for F capacity index of unit 4 capacity index of unit 5 G Piping between branch...

Page 34: ...75H a If the pipe size above the refnet header is Ø34 9 or more KHRQ22M75H is required INFORMATION Maximum 8 branches can be connected to a header How to choose an outdoor multi connection piping kit Choose from the following table in accordance with the number of outdoor units Number of outdoor units Branch kit name 2 BHFQ22P1007 3 BHFQ22P1517 The RYYQ22 54 models consisting of two or three RYMQ ...

Page 35: ... units or RA DX indoor units Definitions Term Definition Actual piping length Pipe length between outdoor a and indoor units Equivalent piping length b Pipe length between outdoor a and indoor units Total piping length Total piping length from the outdoor a to all indoor units H1 Difference in height between outdoor and indoor units H2 Difference in height between indoor and indoor units H3 Differ...

Page 36: ...t header Example 1 3 a c b d e f i g h 1 2 3 4 5 6 7 8 H1 H2 Single outdoor Branch with refnet header Example 2 1 a A h i j k l m n B C D E F G p b c d e f 1 2 3 4 5 6 7 8 g t u r s H1 H2 Multi outdoor Branch with refnet joint Example 2 2 a j k b 1 2 3 4 5 6 7 8 c d e f g h t u r s B A H1 H3 H2 Multi outdoor Branch with refnet joint and refnet header Example 2 3 a b 1 2 3 4 5 6 7 8 c d e f g h i t...

Page 37: ...d e f g p 165 m Example 1 2 unit 6 a b h 165 m unit 8 a i k 165 m Example 1 3 unit 8 a i 165 m Example 2 1 unit 8 a b c d e f g p 135 m Equivalent length 190 m 160 m Total piping length 1000 m 500 m Example 1 1 a b c d e f g h i j k l m n p 1000 m Example 2 1 a b c d e f g h i j k l m n p 500 m Between outdoor branch and outdoor unit only in case of a multi outdoor installation Actual piping lengt...

Page 38: ...connection ratio connected 80 60 65 m minimum connection ratio connected 90 65 80 m minimum connection ratio connected 100 80 90 m minimum connection ratio connected 110 Liquid piping size up see table Size up in E Piping between refrigerant branch kit and indoor unit 432 Dedicated setting on outdoor unit is required see 2 35 in 7 2 8 Mode 2 Field settings 492 H2 30 m H3 5 m Maximum allowable leng...

Page 39: ...m increase the pipe size of b c d e f g c When the piping size is increased step b the piping length has to be counted as double except for the main pipe and the pipes that are not increased in pipe size The total piping length has to be within limitations see table above Example a b 2 c 2 d 2 e 2 f 2 g 2 h i j k l m n p 1000 m 500 m d The piping length difference between the nearest indoor unit f...

Page 40: ...efnet joint 0 5 m and refnet header 1 m for calculation purposes Maximum allowable height difference on Hydrobox indoor unit H1 50 m 40 m if outdoor is located below indoor units H2 15 m Maximum allowable length after branch The pipe length from the first refrigerant branch kit to the indoor unit 40 m Example 1 unit 8 b c d e f g p 40 m Example 2 unit 6 b h 40 m unit 8 i k 40 m Example 3 unit 8 i ...

Page 41: ...outdoor unit can be transmitted Example a 5 m Maximum allowable height difference H1 50 m 40 m if outdoor is located below indoor units H2 15 m H4 40 m H5 15 m H6 5 m Maximum allowable length after branch The pipe length from the first refrigerant branch kit to the indoor unit 50 m Example b g l 50 m If the piping length between the first branch and BP unit or VRV DX indoor unit is over 20 m it is...

Page 42: ...il retention to the outmost outdoor unit always connect the stop valve and the piping between outdoor units as shown in the 4 correct possibilities of the figure below a b b b a b b b a b a b a b a a a 200 mm a To indoor unit b Oil collects to the outmost outdoor unit when the system stops X Not allowed O Allowed If the piping length between the outdoor units exceeds 2 m create a rise of 200 mm or...

Page 43: ...4 1 About preparing electrical wiring INFORMATION Also read the precautions and requirements in the General safety precautions chapter WARNING If the power supply has a missing or wrong N phase equipment might break down Establish proper earthing Do NOT earth the unit to a utility pipe surge absorber or telephone earth Incomplete earthing may cause electrical shock Install the required fuses or ci...

Page 44: ...or equipment with rated current 75 A It is the responsibility of the installer or user of the equipment to ensure by consultation with the distribution network operator if necessary that the equipment is connected only to a supply with a system impedance Zsys less than or equal to Zmax EN IEC 61000 3 12 provided that the short circuit power Ssc is greater than or equal to the minimum Ssc value at ...

Page 45: ...ombinations 5 4 3 Safety device requirements The power supply must be protected with the required safety devices i e a main switch a slow blow fuse on each phase and an earth leakage protector in accordance with the applicable legislation For standard combinations Selection and sizing of the wiring should be done in accordance with the applicable legislation based on the information mentioned in t...

Page 46: ...A For all models Phase and frequency 3N 50 Hz Voltage 380 415 V Transmission line section 0 75 1 25 mm2 maximum length is 1000 m If the total transmission wiring exceeds these limits it may result in communication error For non standard combinations Calculate the recommended fuse capacity Formula Calculate by adding the minimum circuit amps of each used unit according to the table above multiply t...

Page 47: ...r and user reference guide 47 RYYQ RYMQ RXYQ8 20U7Y1B VRV IV heat pump 4P546228 1A 2019 10 NOTICE When using residual current operated circuit breakers be sure to use a high speed type 300 mA rated residual operating current ...

Page 48: ...ng the refrigerant piping 6 Charging refrigerant 7 Connecting the electrical wiring 6 2 Opening the units 6 2 1 To open the outdoor unit DANGER RISK OF ELECTROCUTION DANGER RISK OF BURNING To gain access to the unit front plates need to be opened as follows 14 14 8 12 HP 14 20 HP Once the front plates open the electrical component box can be accessed See 6 2 2 To open the electrical component box ...

Page 49: ...ment failure 2 8 12 HP SW8 14 20 HP 6 SW8 NOTICE When closing the electrical component box cover make sure that the sealing material on the lower back side of the cover is NOT caught and bend towards the inside a b c d e a Electrical component box cover b Front side c Power supply terminal block d Sealing material e Moisture and dirt could enter X Not allowed O Allowed 6 3 Mounting the outdoor uni...

Page 50: ... beam frame or concrete The foundation must be larger than the grey marked area 729 613 929 AB AA a mm Minimum foundation a Anchor point 4 HP AA AB 8 12 766 992 14 20 1076 1302 Fasten the unit in place using four foundation bolts M12 It is best to screw in the foundation bolts until their length remains 20 mm above the foundation surface 20 mm NOTICE Prepare a water drainage channel around the fou...

Page 51: ...ygen deficiency Toxic gas may be produced if refrigerant gas comes into contact with fire WARNING ALWAYS recover the refrigerant Do NOT release them directly into the environment Use a vacuum pump to evacuate the installation Only use phosphoric acid deoxidised seamless copper NOTICE After all the piping has been connected make sure there is no gas leak Use nitrogen to perform a gas leak detection...

Page 52: ... a a Large knockout hole b Drill c Points for drilling NOTICE Precautions when making knockout holes Avoid damaging the casing After making the knockout holes we recommend you remove the burrs and paint the edges and areas around the edges using repair paint to prevent rusting When passing electrical wiring through the knockout holes wrap the wiring with protective tape to prevent damage 6 4 4 To ...

Page 53: ...ipes supplied with the unit The connections to the branch kits are the responsibility of the installer field piping 6 4 5 To connect the multi connection piping kit NOTICE Improper installation may lead to malfunction of the outdoor unit Install the joints horizontally so that the caution label a attached to the joint comes to the top Do not tilt the joint more than 7 5 see view A Do not install t...

Page 54: ...tom 6 4 7 To connect the refrigerant branching kit For installation of the refrigerant branching kit refer to the installation manual delivered with the kit Mount the refnet joint so that it branches either horizontally or vertically Mount the refnet header so that it branches horizontally A B 3 0 a b c a a Horizontal surface b Refnet joint mounted vertically c Refnet joint mounted horizontally 6 ...

Page 55: ...pes Hold the pipe end downwards when removing burrs Cover the pipe end when inserting it through a wall to prevent dust and or particles entering the pipe 6 4 9 To braze the pipe end NOTICE Precautions when connecting field piping Add brazing material as shown in the figure 1 1 1 1 2 2 Ø25 4 Ø25 4 When brazing blow through with nitrogen to prevent creation of large quantities of oxidised film on t...

Page 56: ...rounding surfaces e g insulation foam from heat when brazing 6 4 10 Using the stop valve and service port To handle the stop valve Take the following guidelines into account Make sure to keep all stop valves open during operation The gas and liquid stop valves are factory closed The figures below show the name of each part required in handling the stop valve c d a b a Service port and service port...

Page 57: ...he table below Check for refrigerant leaks after tightening the service port cover Tightening torques Stop valve size mm Tightening torque N m when opening or closing Valve body Hexagonal wrench Service port Ø9 5 5 7 4 mm 10 7 14 7 Ø12 7 8 10 Ø15 9 14 16 6 mm Ø19 1 19 21 8 mm Ø25 4 6 4 11 To remove the pinched pipes WARNING Any gas or oil remaining inside the stop valve may blow off the pinched pi...

Page 58: ...nto the atmosphere 4 When all gas and oil is recovered from the pinched piping disconnect the charge hose and close the service ports 5 Cut off the lower part of the gas liquid and equalising stop valve pipes along the black line Use an appropriate tool e g a pipe cutter WARNING Never remove the pinched piping by brazing Any gas or oil remaining inside the stop valve may blow off the pinched pipin...

Page 59: ... system has not yet been powered on no special action is required to perform the leak test and the vacuum drying Method 2 After power ON If the system has already been powered on activate setting 2 21 refer to 7 2 4 To access mode 1 or 2 486 This setting will open field expansion valves to guarantee a refrigerant piping pathway and make it possible to perform the leak test and the vacuum drying NO...

Page 60: ...ervice port of all stop valves to increase efficiency refer to 6 5 3 Checking refrigerant piping Setup 460 NOTICE Use a 2 stage vacuum pump with a non return valve or a solenoid valve that can evacuate to a gauge pressure of 100 7 kPa 1 007 bar 5 Torr absolute NOTICE Make sure the pump oil does not flow oppositely into the system while the pump is not working NOTICE Do not purge the air with refri...

Page 61: ...y either contain moisture see vacuum drying below or have leaks To check for leaks Pressure leak test 1 Break the vacuum by pressurising with nitrogen gas to a minimum gauge pressure of 0 2 MPa 2 bar Never set the gauge pressure higher than the maximum operation pressure of the unit i e 4 0 MPa 40 bar 2 Test for leaks by applying a bubble test solution to all piping connections 3 Discharge all nit...

Page 62: ...re in the refrigerant piping does NOT increase This might be caused by e g the closed state of the expansion valve in the outdoor unit circuit but does NOT present any problem for correct operation of the unit 6 6 To insulate the refrigerant piping After finishing the leak test and vacuum drying the piping must be insulated Take into account the following points Make sure to insulate the connectio...

Page 63: ...er the indoor and outdoor units are turned on the compressor will not operate before the communication is established in a correct way between outdoor unit s and indoor units NOTICE Before starting charging procedures check if the 7 segment display indication of the outdoor unit A1P PCB is as normal see 7 2 4 To access mode 1 or 2 486 If a malfunction code is present see 10 2 Solving problems base...

Page 64: ...ant 469 It can be skipped but charging will take longer then A flow chart is available which gives an overview of the possibilities and actions to be taken see 6 7 4 To charge refrigerant Flow chart 467 6 7 3 To determine the additional refrigerant amount INFORMATION For final charge adjustment in the test laboratory please contact your local dealer NOTICE The refrigerant charge of the system must...

Page 65: ... a RYYQ8 12 RYYQ14 RYYQ16 RYYQ18 RYYQ20 1 4 kg 1 7 kg 1 2 kg 2 0 kg a ONLY required for RYYQ8 20 models NOT for RXYQ8 54 and RYYQ22 54 Parameter C Parameter C a Model CR 100 CR 100 If Then If Then 8 HP N 4 C N 0 1 kg N 4 C 0 kg C 0 kg 10 HP N 5 N 5 12 HP N 6 N 6 14 HP N 7 N 7 16 HP N 8 N 8 18 HP N 9 N 9 20 HP N 10 N 10 a In case of a multi outdoor unit system add the sum of the individual outdoor ...

Page 66: ...mm 0 18 Ø15 mm 0 16 Ø16 mm 0 18 Ø19 1 mm 0 26 Ø18 mm 0 24 Ø22 2 mm 0 37 Ø22 mm 0 35 Connection ratio requirements When selecting indoor units the connection ratio must comply with the following requirements For more information see the technical engineering data Other combinations than those mentioned in the table are not allowed Indoor units Total CR a CR per type b VRV DX RA DX LT Hydrobox AHU V...

Page 67: ...t to reach R Q Step 2 3 Open valves C D and B to the liquid and equalising line Charge the equalising line to maximally 0 05 MPa then close valve C and disconnect its connection to the manifold Continue pre charging through the liquid line only Execute pre charging amount Q kg Step 4a Close valves D and B Charging is finished Fill in the amount on the additional refrigerant charge label Input the ...

Page 68: ...valve A Charge remaining amount of refrigerant P kg R Q P Depending on ambient conditions the unit will decide to perform autocharge operation in heating or cooling mode Close valve A Push BS3 to stop manual charging Charging is finished Fill in the amount on the additional refrigerant charge label Input the additional refrigerant amount via setting 2 14 Go to test run Step 5 Connect valve A to th...

Page 69: ...est run If following codes appear e 2 indoor temperature out of range and e 3 outdoor temperature out of range In this case perform automatic charging procedure again t0X will appear Push BS1 Charging is finished Fill in the amount on the additional refrigerant charge label Input the additional refrigerant amount via setting 2 14 Go to test run Following codes appear e 2 indoor temperature out of ...

Page 70: ...p R410A N2 C D b c e a g h f d A B a Pressure reducing valve b Nitrogen c Weighing scales d Refrigerant R410A tank siphon system e Vacuum pump f Liquid line stop valve g Gas line stop valve h Equalising line stop valve only for RYMQ A Valve A B Valve B C Valve C D Valve D 4 Do one of the following If Then 4a The calculated additional refrigerant amount is reached by above pre charging procedure Cl...

Page 71: ...refrigerant tanks to each outdoor unit NOTICE The refrigerant charging port is connected to the piping inside the unit The unit s internal piping is already factory charged with refrigerant so be careful when connecting the charge hose After adding the refrigerant do not forget to close the lid of the refrigerant charging port The tightening torque for the lid is 11 5 to 13 9 N m In order to ensur...

Page 72: ...play indication pressure control is executed If Then Heating operation is started Indication till will be displayed start up control waiting stable heating operation Cooling operation is started Indication till will be displayed start up control waiting stable cooling operation 4 When or starts flashing ready for charging push BS2 within 5 minutes Open valve A If BS2 is not pushed within 5 minutes...

Page 73: ...ant amount is already charged before or indication appears close valve A and wait till is displayed If during the cooling operation for the automatic refrigerant charge the ambient conditions go beyond the allowable for this operation mode the unit will indicate on the 7 segment display in case indoor temperature is out of range or in case the outdoor temperature is out of range In this case when ...

Page 74: ... will be displayed In that case refer to 6 7 8 Error codes when charging refrigerant 474 and solve the malfunction accordingly Resetting the malfunction can be done by pushing BS3 The procedure can be restarted from 6 7 7 Step 6b To manually charge refrigerant 473 Aborting the manual refrigerant charge is possible by pushing BS3 The unit will stop and return to idle condition 6 7 8 Error codes whe...

Page 75: ...Contains fluorinated greenhouse gases 2 1 1 1 2 2 kg tCO2 eq GWP kg 1000 kg kg GWP XXX RXXX a f c d e a If a multilingual fluorinated greenhouse gases label is delivered with the unit see accessories peel off the 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 ...

Page 76: ...nstall earth wiring Do NOT earth the unit to a utility pipe surge absorber or telephone earth Incomplete earth may cause electrical shock Make sure to use a dedicated power circuit NEVER use a power supply shared by another appliance Make sure to install the required fuses or circuit breakers Make sure to install an earth leakage protector Failure to do so may cause electric shock or fire When ins...

Page 77: ...up Replace 2 of the 3 phases L1 L2 and L3 during reverse phase protection abnormality 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 reversed phase after a momentary black out and the power goes on and off while the product is operating attach a reversed phase protection circuit locally Running the produ...

Page 78: ...loose The transmission wiring outside the unit should be wrapped and routed together with the field piping Field piping can be routed from front or bottom of the unit going left or right Refer to 6 4 3 To route the refrigerant piping 452 Be sure to follow the limits below If the unit to unit cables are beyond these limits it may result in malfunction of transmission Maximum wiring length 1000 m To...

Page 79: ... damage to the wires by wrapping the wiring with protective tape putting the wires through field supplied protective wire conduits at that location or install suitable field supplied wire nipples or rubber bushings into the knockout holes a b c d a Knockout hole b Burr c Remove burrs d If there are any possibilities that small animals enter the system through the knockout holes close the holes wit...

Page 80: ...lastic bracket d Field supplied clamps 6 8 6 To connect the transmission wiring The wiring from the indoor units must be connected to the F1 F2 In Out terminals on the PCB in the outdoor unit Tightening torque for the transmission wiring terminal screws Screw size Tightening torque N m M3 5 A1P 0 8 0 96 In case of single outdoor unit installation F1 F2 F1 F2 Q1 Q2 F1 F1 F2 F2 Q1 Q2 F1 F2 F1 F2 F1 ...

Page 81: ... in system malfunction The wiring for the other systems must be connected to the F1 F2 Out Out terminals of the PCB in the outdoor unit to which the interconnecting wiring for the indoor units is connected The base unit is the outdoor unit to which the interconnecting wiring for the indoor units is connected 6 8 7 To finish the transmission wiring After installing the transmission wires inside the...

Page 82: ...ION Installation and routing in case the cool heat selector is used refer to the installation manual of the cool heat selector CAUTION When connecting the power supply the earth connection must be made before the current carrying connections are established When disconnecting the power supply the current carrying connections must be separated before the earth connection is The length of the conduc...

Page 83: ...hing only 8 12 HP a b c d f g e i j h 14 20 HP a b c d f g e i j h a Power supply 380 415 V 3N 50 Hz b Fuse c Earth leakage protector d Earth wire e Power supply terminal block f Connect each power wire RED to L1 WHT to L2 BLK to L3 and BLU to N g Earth wire GRN YLW h Tie wrap i Cup washer j When connecting the earth wire it is recommended to perform curling Multiple outdoor units To connect the p...

Page 84: ... it is required to give some input to the PCB of the unit This chapter will describe how manual input is possible by operating the push buttons DIP switches on the PCB and reading the feedback from the 7 segment displays Making settings is done via the master outdoor unit Next to making field settings it is also possible to confirm the current operation parameters of the unit Push buttons and DIP ...

Page 85: ...ield settings Mode 2 is used to change the field settings of the system Consulting the current field setting value and changing the current field setting value is possible In general normal operation can be resumed without special intervention after changing field settings Some field settings are used for special operation e g 1 time operation recovery vacuuming setting manual adding refrigerant s...

Page 86: ... into the electronic component box cover and to close the front plate s inspection cover after the job is finished During operation of the unit the front plate of the unit should be attached Settings are still possible to be made through the inspection opening NOTICE Make sure that all outside panels except for the service cover on the electrical component box are closed while working Close the li...

Page 87: ... seconds 7 segment display indication changes to INFORMATION If you get confused in the middle of the process push BS1 Then it returns to idle situation no indication on 7 segment displays blank refer to 7 2 4 To access mode 1 or 2 486 7 2 5 To use mode 1 Mode 1 is used to set basic settings and to monitor the status of the unit What How Changing and accessing the setting in mode 1 Once mode 1 is ...

Page 88: ... more than 5 seconds you can select the wanted setting It is done by pushing BS2 Accessing the selected setting s value is done by pushing BS3 1 time To quit and return to the initial status Press BS1 Changing the value of the selected setting in mode 2 Once mode 2 is selected push BS1 for more than 5 seconds you can select the wanted setting It is done by pushing BS2 Accessing the selected settin...

Page 89: ...d slave 2 indications are relevant in multiple outdoor unit system configurations The allocation of which outdoor unit is master slave 1 or slave 2 are decided by the unit s logic The master unit should be used to input field settings in mode 2 1 0 Description No indication Undefined situation 0 Outdoor unit is master unit 1 Outdoor unit is slave 1 unit 2 Outdoor unit is slave 2 unit 1 1 Shows the...

Page 90: ...mber of connected indoor units It can be convenient to check if the total number of indoor units which are installed match the total number of indoor units which are recognised by the system In case there is a mismatch it is recommended to check the communication wiring path between outdoor and indoor units F1 F2 communication line 1 13 Shows the total number of connected outdoor units in case of ...

Page 91: ...ual basis Indication is given in remaining days and is between 0 and 365 days 1 35 1 36 1 37 Shows the result of 1 35 The latest automatic leak detection execution 1 36 The 2nd last automatic leak detection operation 1 37 The 3rd last automatic leak detection operation When the automatic leak detection was activated through mode 2 settings it is possible to see what was the last result of the auto...

Page 92: ... Description 0 default Each individual outdoor unit can select Cool Heat operation by Cool Heat selector if installed or by defining master indoor user interface see setting 2 83 and the operation manual 1 Master unit decides Cool Heat operation when outdoor units are connected in multiple system combination a 2 Slave unit for Cool Heat operation when outdoor units are connected in multiple system...

Page 93: ...ions when an external signal is sent to the unit this setting should be changed This setting will only be effective when the optional external control adaptor DTA104A61 62 is installed 2 12 Description 0 default Deactivated 1 Activated 2 14 Input additional refrigerant amount that was charged In case you want to use the automatic leak detection functionality it is required to input the total addit...

Page 94: ...der to add the additional refrigerant charge amount in a manual way without automatic refrigerant charging functionality following setting should be applied Further instructions regarding the different ways to charge additional refrigerant into your system can be found in chapter 6 7 2 About charging refrigerant 464 2 20 Description 0 default Deactivated 1 Activated To stop the manual additional r...

Page 95: ...ed 1 Level 1 Level 3 Level 2 Level 1 2 Level 2 3 Level 3 2 25 Low noise operation level via the external control adaptor If the system needs to be running under low noise operation conditions when an external signal is sent to the unit this setting defines the level of low noise that will be applied This setting will only be effective when the optional external control adaptor DTA104A61 62 is inst...

Page 96: ...mitation level step 2 via the external control adaptor DTA104A61 62 If the system needs to be running under power consumption limitation conditions when an external signal is sent to the unit this setting defines the level power consumption limitation that will be applied for step 2 The level is according to the table 2 31 Power consumption limitation approximately 1 default 40 2 50 3 55 2 32 Forc...

Page 97: ...ghest position indoor units are installed on a lower position than outdoor units and the height difference between the lowest indoor unit and the outdoor unit exceeds 50 m the setting 2 49 has to be changed to 1 Other changes limitations to the circuit apply for more information see 5 3 5 Piping length VRV DX only 435 2 81 Cooling comfort setting This setting is used in conjunction with setting 2 ...

Page 98: ...80 2 90 3 60 4 30 5 7 6 1 2 86 Automatic leak detection activation When you want to use the automatic leak detection function you have to activate this setting By activating setting 2 86 the automatic leak detection will be executed depending on the defined value setting The timing for the next automatic refrigerant leak detection is subject to setting 2 85 The automatic leak detection will be exe...

Page 99: ...he system are still possible due to protection controls to keep the unit operating under reliable conditions The intentional target however is fixed and will be used to obtain the best balance between energy consumption and comfort depending on the application type Care should be taken about selection procedures and system setups especially when using Hydrobox units The requested leaving water tem...

Page 100: ... economic cooling heating The refrigerant temperature is set higher lower cooling heating compared to basic operation The focus under high sensible mode is comfort feeling for the customer The selection method of indoor units is important and has to be considered as the available capacity is not the same as under basic operation For details concerning to Hi sensible applications please contact you...

Page 101: ...ation is allowed compared to the requested refrigerant temperature in order to achieve the required room temperature very fast The overshoot is allowed from the start up moment In case 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 to 46 C on tempora...

Page 102: ...ove The start up condition is different from the powerful and quick comfort setting To activate this in Change Cooling operation 2 81 1 This setting is used in conjunction with setting 2 8 Heating operation 2 82 1 This setting is used in conjunction with setting 2 9 Eco The original refrigerant temperature target which is defined by the operation method see above is kept without any correction unl...

Page 103: ...ual load curve B Virtual load curve initial capacity automatic mode C Virtual target value initial evaporation temperature value automatic mode D Required evaporation temperature value E Load factor F Outside air temperature Te Evaporating 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 Powerfu...

Page 104: ... 46 C F 2 C A Virtual load curve default automatic mode peak capacity B Load curve C Virtual target value initial condensation temperature value automatic mode D Design temperature E Load factor F Outside air temperature Tc Condensing 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 ...

Page 105: ...quires input of the additional refrigerant charge amount immediately after finishing the charging The input must be executed before performing the test operation NOTICE If a wrong value is input for the additional charged refrigerant weight the accuracy of the leak detection function will decrease INFORMATION The weighed and already recorded amount of additional refrigerant charge not the total am...

Page 106: ...te push BS1 Display Leaked amount kg 0 x 0 5 0 5 x 1 1 x 1 5 1 5 x 2 2 x 2 5 2 5 x 3 3 x 3 5 3 5 x 4 4 x 4 5 4 5 x 5 5 x 5 5 5 5 x 6 6 x 6 5 6 5 x 7 7 x 7 5 7 5 x 8 8 x 8 5 8 5 x 9 9 x 9 5 9 5 x 10 10 x Information codes Code Description Unit is not prepared to execute leak detection operation refer to requirements to be able to execute leak detection operation Indoor unit is out of temperature ra...

Page 107: ... Display Steps Preparation a Pressure equalisation Start up Leak detection operation Standby b Leak detection operation is finished a If the indoor temperature is too low first the heating operation will start b If the indoor temperature is lower than 15 C due to leak detection operation and the outdoor temperature is lower than 20 C the heating operation will start to maintain basic comfort heati...

Page 108: ...R RISK OF BURNING CAUTION Do NOT perform the test operation while working on the indoor units When performing the test operation NOT only the outdoor unit but the connected indoor unit will operate as well Working on an indoor unit while performing a test operation is dangerous CAUTION Do NOT insert fingers rods or other objects into the air inlet or outlet Do NOT remove the fan guard When the fan...

Page 109: ...and that the earth terminals are tightened Insulation test of the main power circuit Using a megatester for 500 V check that the insulation resistance of 2 MΩ or more is attained by applying a voltage of 500 V DC between power terminals and earth NEVER use the megatester for the transmission wiring Fuses circuit breakers or protection devices Check that the fuses circuit breakers or the locally in...

Page 110: ...ect wiring communication check with indoor units Check of the stop valves opening Judgement of piping length Gathering reference data for leak detection functionality If the leak detection functionality is required the test run needs to be executed including a detailed refrigerant situation check If the leak detection functionality is NOT required the test run can skip the detailed refrigerant sit...

Page 111: ...rwise the malfunction code will be displayed on the user interface and normal operation or individual indoor unit test run cannot be carried out Abnormalities on indoor units cannot be checked for each unit separately After the test operation is finished check the indoor units one by one by performing a normal operation using the user interface Refer to the indoor unit installation manual for more...

Page 112: ...splay idle Abnormal completion Indication of malfunction code on the 7 segment display Refer to 8 6 Correcting after abnormal completion of the test run 4112 to take actions for correcting the abnormality When the test operation is fully completed normal operation will be possible after 5 minutes 8 6 Correcting after abnormal completion of the test run The test operation is only completed if there...

Page 113: ... chapter contains information about Preventing electrical hazards when maintaining and servicing the system The refrigerant recovery operation 9 2 Maintenance safety precautions DANGER RISK OF ELECTROCUTION DANGER RISK OF BURNING NOTICE Risk of electrostatic discharge Before performing any maintenance or service work touch a metal part of the unit in order to eliminate static electricity and to pr...

Page 114: ...Pay attention to the fan It is dangerous to inspect the unit while the fan is running Make sure to turn off the main switch and to remove the fuses from the control circuit located in the outdoor unit 9 3 About service mode operation Refrigerant recovery operation vacuuming operation is possible by applying setting 2 21 Refer to 7 2 Making field settings 484 for details how to set mode 2 When vacu...

Page 115: ...rant circuit Do NOT use the unit s automatic pump 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 operating compressor Use a separate recovery system so that the unit s compressor does NOT have to operate NOTICE Make sure to NOT recover any oil while rec...

Page 116: ...ion code and retry operation The malfunction code which is displayed on the outdoor unit will indicate a main malfunction code and a sub code The sub code indicates more detailed information about the malfunction code The malfunction code will be displayed intermittent Example Code Example Main code Sub code With an interval of 1 second the display will switch between main code and sub code 10 3 E...

Page 117: ... s display or transmission wiring between the outdoor unit and the indoor unit Electronic expansion valve malfunction main Y1E A1P X21A Check connection on PCB or actuator Electronic expansion valve malfunction liquid cooling Y3E A1P X23A Check connection on PCB or actuator Electronic expansion valve malfunction subcool Y2E A1P X22A Check connection on PCB or actuator Electronic expansion valve ma...

Page 118: ...uit A1P X19A Check connection on PCB or actuator Compressor casing temperature sensor malfunction R8T short circuit A1P X19A Check connection on PCB or actuator Compressor casing temperature sensor malfunction R9T open circuit A1P X19A Check connection on PCB or actuator Compressor casing temperature sensor malfunction R9T short circuit A1P X19A Check connection on PCB or actuator Suction temperat...

Page 119: ...8A X40A Check connection Transmission outdoor unit inverter FAN1 transmission trouble A1P X20A X28A X40A Check connection Transmission outdoor unit inverter FAN2 transmission trouble A1P X20A X28A X40A Check connection Transmission outdoor unit inverter INV2 transmission trouble A1P X20A X28A X40A Check connection INV1 unbalanced power supply voltage Check if power supply is within range INV2 unba...

Page 120: ... units are connected to F1 F2 line Bad wiring between outdoor and indoor units Check indoor unit amount and total capacity connected System mismatch Wrong type of indoor units combined R410A R407C RA Hydrobox etc Indoor unit malfunction Check if other indoor units have malfunction and confirm indoor unit mix is allowed Connection malfunction over indoor units or type mismatch R410A R407C RA Hydrob...

Page 121: ...ndoor unit are not obstructed Freeze up prevention indoor unit Close valve A immediately Push BS1 to reset Retry autocharge procedure Automatic charging nearly finished Prepare for autocharge stopping Automatic charging finished Finish autocharge mode Leak detection function related Unit is not prepared to execute leak detection operation Refer to requirements to be able to execute leak detection ...

Page 122: ...mp 4P546228 1A 2019 10 11 Disposal NOTICE Do NOT try to dismantle the system yourself dismantling of the system treatment of the refrigerant oil and other parts MUST comply with applicable legislation Units MUST be treated at a specialised treatment facility for reuse recycling and recovery ...

Page 123: ...uired 12 1 Overview Technical data This chapter contains information about Service space Piping diagram Wiring diagram 12 2 Service space Outdoor unit Make sure the space around the unit is adequate for servicing and the minimum space for air inlet and air outlet is available refer to the figure below and choose one of the possibilities a b a c d a b a e d e c a b a e d f c a b a e b d c a b a e d...

Page 124: ... obstacles F Front side Suction side In case of an installation site where sides A B C D have obstacles the wall heights of sides A C have no impact on service space dimensions Refer to the figure above for impact of wall heights of sides B D on service space dimensions In case of an installation site where only the sides A B have obstacles the wall heights have no influence on any indicated servi...

Page 125: ...12 Technical data Installer and user reference guide 125 RYYQ RYMQ RXYQ8 20U7Y1B VRV IV heat pump 4P546228 1A 2019 10 INFORMATION Further specifications can be found in the technical engineering data ...

Page 126: ...anger d Fan e Fan motor M1F M2F f Accumulator g Expansion valve main Y1E h Expansion valve subcool heat exchanger Y2E i Expansion valve storage vessel Y4E j Subcool heat exchanger k Oil separator l Solenoid valve oil accumulator Y2S m Solenoid valve oil1 Y3S n Solenoid valve oil2 Y4S o 4 way valve main Y1S p 4 way valve sub Y5S q Electrical component box r Service port refrigerant charge s Stop va...

Page 127: ...at exchanger d Fan e Fan motor M1F M2F f Accumulator g Expansion valve main Y1E h Expansion valve subcool heat exchanger Y2E i Expansion valve storage vessel Y4E j Subcool heat exchanger k Oil separator l Solenoid valve oil accumulator Y2S m Solenoid valve oil1 Y3S n Solenoid valve oil2 Y4S o 4 way valve main Y1S p 4 way valve sub Y5S q Electrical component box r Service port refrigerant charge s ...

Page 128: ...anger Y2E i Expansion valve storage vessel Y4E j Subcool heat exchanger k Oil separator l Solenoid valve oil accumulator Y2S m Solenoid valve oil1 Y3S n Solenoid valve oil2 Y4S o 4 way valve main Y1S p 4 way valve sub Y5S q Electrical component box r Service port refrigerant charge s Stop valve liquid t Stop valve gas u Stop valve equalising gas v Heat accumulation element w Service port x Expansi...

Page 129: ...qualising gas v Heat accumulation element w Service port x Expansion valve liquid cooling Y3E Piping diagram RXYQ8 12 R3T R6T R5T R7T R1T R21T j h e c o f l m k a d t s r INV M sv sv M1C M1F S1NPL S1NPH S1PH HPS R8T R4T g x w a Compressor M1C b Compressor M2C c Heat exchanger d Fan e Fan motor M1F M2F f Accumulator g Expansion valve main Y1E h Expansion valve subcool heat exchanger Y2E i Expansion...

Page 130: ...changer d Fan e Fan motor M1F M2F f Accumulator g Expansion valve main Y1E h Expansion valve subcool heat exchanger Y2E i Expansion valve storage vessel Y4E j Subcool heat exchanger k Oil separator l Solenoid valve oil accumulator Y2S m Solenoid valve oil1 Y3S n Solenoid valve oil2 Y4S o 4 way valve main Y1S p 4 way valve sub Y5S q Electrical component box r Service port refrigerant charge s Stop ...

Page 131: ...r to the installation manual of the optional adapter 4 For connection wiring to indoor outdoor transmission F1 F2 outdoor outdoor transmission F1 F2 outdoor multi transmission Q1 Q2 refer to the installation manual 5 How to use BS1 BS3 switch refer to the Service Precaution label on the electrical component box cover 6 When operating do NOT short circuit the protection devices S1PH 7 Only for RYYQ...

Page 132: ... A1P Fuse T 3 15 A 250 V F3U Field fuse F101U A4P Fuse F401U F403U A2P Fuse F601U A3P Fuse HAP A P Pilot lamp service monitor is green K3R A3P Magnetic relay K4R A1P Magnetic relay Y1S K5R A1P Magnetic relay Y2S K6R A1P Magnetic relay E3H K7R A1P Magnetic relay E1HC K9R A1P Magnetic relay Y3S K11R A1P Magnetic relay Y5S L1R Reactor M1C Motor compressor M1F Motor fan PS A1P A3P Switching power supp...

Page 133: ...ectronic expansion valve sub cool Y3E Electronic expansion valve liquid cooling Y4E Electronic expansion valve storage vessel Y1S Solenoid valve main Y2S Solenoid valve accumulator oil return Y3S Solenoid valve oil 1 Y5S Solenoid valve subcool Z C Noise filter ferrite core Z F A2P A5P Noise filter with surge absorber Connectors for optional accessories X10A Connector drainpan heater X37A Connector...

Page 134: ...Magnetic relay E3H K7R A1P Magnetic relay E1HC K8R A1P Magnetic relay E2HC K9R A1P Magnetic relay Y3S K11R A1P Magnetic relay Y5S L1R L2R Reactor M1C M2C Motor compressor M1F M2F Motor fan PS A1P A3P A6P Switching power supply Q1DI Earth leakage circuit breaker field supply Q1LD A1P Earth current detector field supply R24 A4P A7P Resistor current sensor R300 A3P A6P Resistor current sensor R1T The...

Page 135: ...rminal block power supply option Y1E Electronic expansion valve main Y2E Electronic expansion valve sub cool Y3E Electronic expansion valve liquid cooling Y4E Electronic expansion valve storage vessel Y1S Solenoid valve main Y2S Solenoid valve accumulator oil return Y3S Solenoid valve oil 1 Y4S Solenoid valve oil 2 Y5S Solenoid valve subcool Z C Noise filter ferrite core Z F A2P Noise filter with ...

Page 136: ...12 Technical data Installer and user reference guide 136 RYYQ RYMQ RXYQ8 20U7Y1B VRV IV heat pump 4P546228 1A 2019 10 For the user ...

Page 137: ...r units air to air applications Hydrobox air to water applications HXY080 125 only AHU air to air applications EKEXV kit is required Aircurtain Biddle air to air applications Combination of VRV direct expansion indoor units with RA direct expansion units is allowed Combination of VRV direct expansion indoor units with Hydrobox units is allowed Combination of VRV direct expansion indoor units with ...

Page 138: ... manual when certain features have exclusive model rights or not g c g g h g g c c c d f e b i a a VRV IV Heat pump outdoor unit b Refrigerant piping c VRV direct expansion DX indoor unit d VRV LT Hydrobox HXY080 125 e BP box required 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 dedicated dependi...

Page 139: ...inside are dangerous to touch and appliance problems may happen For checking and adjusting the internal parts contact your dealer This operation manual offers a non exhaustive overview of the main functions of the system Detailed information on required actions to achieve certain functions can be found in the dedicated installation and operation manual of the indoor unit Refer to the operation man...

Page 140: ... a room fumigation type insecticide Chemicals could collect in the unit and endanger the health of people who are hypersensitive to chemicals 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 This operation manual is for the following systems with standard control Before initiating operation contact you...

Page 141: ...echnical engineering data 16 2 Operating the system 16 2 1 About operating the system Operation procedure varies according to the combination of outdoor unit and user interface To protect the unit turn on the main power switch 6 hours before operation If the main power supply is turned off during operation operation will restart automatically after the power turns back on again 16 2 2 About coolin...

Page 142: ...o defrost the outdoor unit coil The indoor unit will indicate defrost operation on the display Hot start In order to prevent cold air from blowing out of an indoor unit at the start of heating operation the indoor fan is automatically stopped The display of the user interface shows It may take some time before the fan starts This is not a malfunction INFORMATION The heating capacity drops when the...

Page 143: ...follows Cooling operation 1 1 Heating operation 1 1 Fan only operation 1 2 Press the ON OFF button on the user interface Result The operation lamp lights up and the system starts operating To stop 3 Press the ON OFF button on the user interface once again Result The operation lamp goes out and the system stops operating NOTICE Do not turn off power immediately after the unit stops but wait for at ...

Page 144: ...rection 4145 for details To stop 4 Press the ON OFF button on the user interface once again Result The operation lamp goes out and the system stops operating NOTICE Do not turn off power immediately after the unit stops but wait for at least 5 minutes 16 3 3 To use the dry program WITH cool heat changeover remote control switch To start 1 Select cooling operation mode with the cool heat changeover...

Page 145: ...ration When operating continuously at horizontal air flow direction When continuous operation with downward air flow is performed at the time of cooling with a ceiling suspended or a wall mounted unit the micro computer may control the flow direction and then the user interface indication will also change The air flow direction can be adjusted in one of the following ways The air flow flap itself ...

Page 146: ...ydrobox unit The operation mode is always forced by the master user interface of the VRV DX indoor unit The Hydrobox unit cannot select the operation mode cooling heating VRV DX indoor units combined with RA DX indoor units The operation mode is by default selected by the master user interface of the RA DX indoor unit Contact your installer if you wish to know which indoor unit type received the m...

Page 147: ...y addressing that unit with infrared user interface instruct thermo ON in desired mode The only way to change the master unit is by repeating the previous procedure A cool heat switchover or opposite is only possible by changing the operation mode of the defined master indoor unit In case you want to keep the VRV DX indoor unit user interface as master contact your installer 16 6 About control sys...

Page 148: ...shows time to clean the air filter ask a qualified service person to clean the filters Refer to Maintenance in the indoor unit manual Keep the indoor unit and user interface at least 1 m away from televisions radios stereos and other similar equipment Failing to do so may cause static or distorted pictures Do NOT place items under the indoor unit as they may be damaged by water Condensation may fo...

Page 149: ...s comfort feeling for the customer The selection method of indoor units is important and has to be considered as the available capacity is not the same as under basic operation For details concerning to Hi sensible applications please contact your installer 17 2 Available comfort settings For each of above modes a comfort level can be selected The comfort level is related to the timing and the eff...

Page 150: ...l 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 18 1 Maintenance after a long stop period E g at the beginning of the season Check ...

Page 151: ... GWP value of the refrigerant total refrigerant charge in kg 1000 Please contact your installer for more information WARNING The refrigerant in the system is safe and normally does not leak If the refrigerant leaks in the room contact with a fire of a burner a heater or a cooker may result in a harmful gas Turn off any combustible heating devices ventilate the room and contact the dealer where you...

Page 152: ...18 4 3 Recommended maintenance and inspection cycles Be aware that the mentioned maintenance and replacement cycles do not relate to the warranty period of the components Component Inspection cycle Maintenance cycle replacements and or repairs Electric motor 1 year 20 000 hours PCB 25 000 hours Heat exchanger 5 years Sensor thermistor etc 5 years User interface and switches 25 000 hours Drain pan ...

Page 153: ... long sites with 24 hour air conditioning Recommended replacement cycle of wear parts Component Inspection cycle Maintenance cycle replacements and or repairs Air filter 1 year 5 years High efficiency filter 1 year Fuse 10 years Crankcase heater 8 years Pressure containing parts In case of corrosion contact your local dealer NOTICE The table indicates main components Refer to your maintenance and ...

Page 154: ...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 according to the following procedures Malfunction Measure If the system does not operate at all Check if there is no power failure...

Page 155: ...act your installer and state the symptoms the complete model name of the unit with manufacturing number if possible and the installation date possibly listed on the warranty card 19 1 Error codes Overview In case a malfunction code appears on the indoor unit user interface display contact your installer and inform the malfunction code the unit type and serial number you can find this information o...

Page 156: ...ercharge detection High pressure switch malfunction Low pressure switch malfunction Fan motor trouble outdoor Ambient temperature sensor malfunction outdoor Pressure sensor malfunction Current sensor malfunction Discharge temperature sensor malfunction outdoor Heat exchanger gas temperature sensor malfunction outdoor Suction temperature sensor malfunction outdoor De icing temperature sensor malfun...

Page 157: ...ation centralised control device indoor unit Auto address malfunction inconsistency Auto address malfunction inconsistency 19 2 Symptoms that are NOT system malfunctions The following symptoms are NOT system malfunctions 19 2 1 Symptom The system does not operate The air conditioner does not start immediately after the ON OFF button on the user interface is pressed If the operation lamp lights the...

Page 158: ...l not change even when another indoor unit is in heating operation if the button is pressed 19 2 5 Symptom The fan direction does not correspond to the setting The fan direction does not correspond with the user interface display The fan direction does not swing This is because the unit is being controlled by the micro computer 19 2 6 Symptom White mist comes out of a unit Indoor unit When humidit...

Page 159: ...Symptom Noise of air conditioners Indoor unit outdoor unit A continuous low hissing sound is heard when the system is in cooling or defrost operation This is the sound of refrigerant gas flowing through both indoor and outdoor units A hissing sound which is heard at the start or immediately after stopping operation or defrost operation This is the noise of refrigerant caused by flow stop or flow c...

Page 160: ...g in the compressor The unit will stop after 5 to 10 minutes 19 2 17 Symptom The inside of an outdoor unit is warm even when the unit has stopped This is because the crankcase heater is warming the compressor so that the compressor can start smoothly 19 2 18 Symptom Hot air can be felt when the indoor unit is stopped Several different indoor units are being run on the same system When another unit...

Page 161: ...staller and user reference guide 161 RYYQ RYMQ RXYQ8 20U7Y1B VRV IV heat pump 4P546228 1A 2019 10 20 Relocation Contact your dealer for removing and reinstalling the total unit Moving units requires technical expertise ...

Page 162: ...unit uses hydrofluorocarbon Contact your dealer when discarding this unit NOTICE Do NOT try to dismantle the system yourself dismantling of the system treatment of the refrigerant oil and other parts MUST comply with applicable legislation Units MUST be treated at a specialised treatment facility for reuse recycling and recovery ...

Page 163: ... 2 To continue choose Continue to Europe for the international website Other country for a country related site Result You are directed to the Seasonal efficiency webpage 3 Under Eco Design Ener LOT 21 click Generate your data Result You are directed to the Seasonal efficiency LOT 21 webpage 4 Follow the instructions on the webpage to select the correct unit Result When the selection is done the L...

Page 164: ...t or 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 instructions Instruction manual specified for a certain product or application which explains if relevant how to install configure operate and or maintain the product or application Accessories Labels manual...

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Page 168: ...4P546228 1A 2019 10 Copyright 2018 Daikin Verantwortung für Energie und Umwelt ...

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