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Unit installation

Installer and user reference guide

RXYTQ
VRV IV+ heat pump for high ambient temperatures
4P561157-1B – 2021.11

16 Unit installation

In this chapter

Opening the unit.....................................................................................................................................................................

16.1.1

About opening the units ........................................................................................................................................

16.1.2

To open the outdoor unit ......................................................................................................................................

16.1.3

To open the electrical component box of the outdoor unit .................................................................................

16.2

Mounting the outdoor unit ....................................................................................................................................................

16.2.1

To provide the installation structure .....................................................................................................................

16.1 Opening the unit

16.1.1 About opening the units

At certain times, you have to open the unit.

Example:

▪

When connecting the electrical wiring

▪

When maintaining or servicing the unit

DANGER: RISK OF ELECTROCUTION

Do NOT leave the unit unattended when the service cover is removed.

16.1.2 To open the outdoor unit

DANGER: RISK OF ELECTROCUTION

DANGER: RISK OF BURNING/SCALDING

14×

8 HP

10~16 HP

Once the front plates open, the electrical component box can be accessed. See

"16.1.3 To open the electrical component box of the outdoor unit"

[

58].

For service purposes, the pushbuttons on the main PCB need to be accessed. To
access these pushbuttons, the electrical component box cover does not need to be
opened. See

"19.2.3 To access the field setting components"

[

101].

Содержание VRV IV+ RXYTQ8U5YF

Страница 1: ...Installer and user reference guide VRV IV heat pump for high ambient temperatures RXYTQ8U5 U7YF RXYTQ10U5 U7YF RXYTQ12U5 U7YF RXYTQ14U5 U7YF RXYTQ16U5 U7YF...

Страница 2: ...UT cool heat changeover remote control switch 28 7 4 3 To use the dry program WITH cool heat changeover remote control switch 28 7 5 Adjusting the air flow direction 29 7 5 1 About the air flow flap 2...

Страница 3: ...15 About the units and options 52 15 1 Overview About the units and options 52 15 2 Identification label Outdoor unit 52 15 3 About the outdoor unit 53 15 4 System layout 53 15 5 Combining units and...

Страница 4: ...finish the transmission wiring 97 18 5 To route and fix the power supply 97 18 6 To connect the power supply 98 18 7 To check the insulation resistance of the compressor 99 19 Configuration 100 19 1...

Страница 5: ...guide 5 RXYTQ VRV IV heat pump for high ambient temperatures 4P561157 1B 2021 11 24 Disposal 133 25 Technical data 134 25 1 Service space Outdoor unit 134 25 2 Piping diagram Outdoor unit 136 25 3 Wi...

Страница 6: ...ion 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...

Страница 7: ...result in minor or moderate injury NOTICE Indicates a situation that could result in equipment or property damage INFORMATION Indicates useful tips or additional information Symbols used on the unit S...

Страница 8: ...NING Improper installation or attachment of equipment or accessories could result in electrical shock short circuit leaks fire or other damage to the equipment ONLY use accessories optional equipment...

Страница 9: ...of the unit Make sure the area is well ventilated Do NOT block any ventilation openings Make sure the unit is level Do NOT install the unit in the following places In potentially explosive atmosphere...

Страница 10: ...o NOT release them directly into the environment Use a vacuum pump to evacuate the installation NOTICE After all the piping has been connected make sure there is no gas leak Use nitrogen to perform a...

Страница 11: ...erant Possible consequence Incorrect refrigerant amount 2 1 4 Electrical DANGER RISK OF ELECTROCUTION Turn OFF all power supply before removing the switch box cover connecting electrical wiring or tou...

Страница 12: ...of the earth leakage protector CAUTION When connecting the power supply connect the earth cable first before making the current carrying connections When disconnecting the power supply disconnect the...

Страница 13: ...nts box 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...

Страница 14: ...nded when the service cover is removed DANGER RISK OF BURNING SCALDING DANGER RISK OF ELECTROCUTION WARNING Take sufficient precautions in case of refrigerant leakage If refrigerant gas leaks ventilat...

Страница 15: ...earth the unit to a utility pipe surge absorber or telephone earth Incomplete earthing may cause electrical shock Install the required fuses or circuit breakers Secure the electrical wiring with cabl...

Страница 16: ...er supply stress relief and the terminal block itself MUST be as such that the current carrying wires are tautened before the earth wire is in case the power supply is pulled loose from the stress rel...

Страница 17: ...For the user Installer and user reference guide 17 RXYTQ VRV IV heat pump for high ambient temperatures 4P561157 1B 2021 11 For the user...

Страница 18: ...om 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 appli...

Страница 19: ...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 met...

Страница 20: ...in operation Fingers may become caught or the unit may break down CAUTION Do NOT insert fingers rods or other objects into the air inlet or outlet Do NOT remove the fan guard When the fan is rotating...

Страница 21: ...akage has been repaired or corrected before resuming operation WARNING Stop operation and shut OFF the power if anything unusual occurs burning smells etc Leaving the unit running under such circumsta...

Страница 22: ...n instruments food plants animals or works of art NOTICE For future modifications or expansions of your system A full overview of allowable combinations for future system extensions is available in te...

Страница 23: ...nstaller and user reference guide 23 RXYTQ VRV IV heat pump for high ambient temperatures 4P561157 1B 2021 11 6 User interface This operation manual offers a non exhaustive overview of the main functi...

Страница 24: ...flap 29 7 6 Setting the master user interface 30 7 6 1 About setting the master user interface 30 7 6 2 To designate the master user interface VRV DX and Hydrobox 30 7 7 About control systems 30 7 1 B...

Страница 25: ...out of the unit If the temperature or the humidity is beyond these conditions safety devices may be put in action and the air conditioner may not operate Above operation range is only valid in case d...

Страница 26: ...on 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...

Страница 27: ...sition To start 1 Select operation mode with the cool heat changeover switch as follows Cooling operation Heating operation Fan only operation 1 1 1 1 1 1 1 1 2 Press the ON OFF button on the user int...

Страница 28: ...ow direction 429 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 immediate...

Страница 29: ...operation 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 u...

Страница 30: ...to the same outdoor unit flashes 2 Press the operation mode selector button of the controller that you wish to designate as the master user interface Result Designation is completed This user interfa...

Страница 31: ...before operation to ensure smooth running Refer to Maintenance in the indoor unit manual When the display shows time to clean the air filter ask a qualified service person to clean the filters Refer...

Страница 32: ...de 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 concern...

Страница 33: ...uted neutral detergent squeeze it well and wipe the panel clean Wipe it with another dry cloth In this chapter 9 1 Maintenance after a long stop period 33 9 2 Maintenance before a long stop period 34...

Страница 34: ...410A Global warming potential GWP value 2087 5 NOTICE Applicable legislation on fluorinated greenhouse gases requires that the refrigerant charge of the unit is indicated both in weight and CO2 equiva...

Страница 35: ...t dismantling or installation may cause an electrical shock or fire Contact your dealer In case of accidental refrigerant leaks make sure there are no naked flames The refrigerant itself is entirely s...

Страница 36: ...it cannot be used if power fluctuation is outside the allowable range Bumps and vibrations are frequent Dust salt harmful gas or oil mist such as sulphurous acid and hydrogen sulfide may be present in...

Страница 37: ...ber 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 n...

Страница 38: ...ration is possible but cooling and heating do not work 41 10 2 4 Symptom The fan speed does not correspond to the setting 41 10 2 5 Symptom The fan direction does not correspond to the setting 41 10 2...

Страница 39: ...unction indoor Movement detector or floor temperature sensor malfunction indoor User interface thermistor malfunction indoor PCB malfunction outdoor Current leakage detector was activated outdoor High...

Страница 40: ...y voltage Autocharge operation related Fin thermistor malfunction Autocharge operation related Autocharge operation related Autocharge operation related Capacity setting malfunction outdoor Abnormal l...

Страница 41: ...ows that this is a slave user interface When the cool heat changeover remote control switch is installed and the display shows change over under centralized control this is because cool heat changeove...

Страница 42: ...hen the noise ceases 10 2 9 Symptom Noise of air conditioners Indoor unit A zeen sound is heard immediately after the power supply is turned on The electronic expansion valve inside an indoor unit sta...

Страница 43: ...y shows 88 This is the case immediately after the main power supply switch is turned on and means that the user interface is in normal condition This continues for 1 minute 10 2 16 Symptom The compres...

Страница 44: ...and user reference guide 44 RXYTQ VRV IV heat pump for high ambient temperatures 4P561157 1B 2021 11 11 Relocation Contact your dealer for removing and reinstalling the total unit Moving units requir...

Страница 45: ...This 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 p...

Страница 46: ...energylabel daikin eu 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...

Страница 47: ...For the installer Installer and user reference guide 47 RXYTQ VRV IV heat pump for high ambient temperatures 4P561157 1B 2021 11 For the installer...

Страница 48: ...2 Overview About the box This chapter describes what you have to do after the box with the outdoor unit is delivered on site It contains information about Unpacking and handling the outdoor unit Remo...

Страница 49: ...ght of the unit A forklift can only be used for transport as long as the unit remains on its pallet as shown above 14 3 To unpack the outdoor unit Remove the packaging material from the unit Take care...

Страница 50: ...DDITIONAL REFRIGERANT CHARGING AMOUNT 4 AFTER FILLING IN THIS TABLE PLEASE PUT IT ON THE SWITCH BOX COVER m x 0 18 m x 0 37 kg OUTDOOR UNIT m x 0 26 m x 0 12 m x 0 059 m x 0 022 ADDITIONAL CHARGING AM...

Страница 51: ...rmal vibration or noise may be generated The transportation stay installed over the compressor leg for protecting the unit during transport must be removed Proceed as shown in the figure and procedure...

Страница 52: ...ns of outdoor units 54 15 5 4 Possible options for the outdoor unit 55 15 1 Overview About the units and options This chapter contains information about Identification of the outdoor unit Where the ou...

Страница 53: ...nd aimed for heat pump air to air applications These units have in single use heating capacities ranging from 25 to 50 kW and cooling capacities rating from 22 4 to 45 kW In multi combination the heat...

Страница 54: ...intended for R410A use only For an overview which units are available you can consult the product catalogue for VRV IV An overview is given indicating the allowed combinations of indoor units and out...

Страница 55: ...units Only the combinations in the table below are allowed Continuous heating RXYTQ18 RXYTQ10 8 RXYTQ20 RXYTQ10 10 RXYTQ22 RXYTQ10 12 RXYTQ24 RXYTQ12 12 RXYTQ26 RXYTQ14 12 RXYTQ28 RXYTQ14 14 RXYTQ30 R...

Страница 56: ...xing box for the switch KJB111A External control adaptor DTA104A61 62 To instruct specific operation with an external input coming from a central control the external control adaptor can be used Instr...

Страница 57: ...you have to open the unit Example When connecting the electrical wiring When maintaining or servicing the unit DANGER RISK OF ELECTROCUTION Do NOT leave the unit unattended when the service cover is r...

Страница 58: ...nt box cover make sure that the sealing material on the lower back side of the cover is NOT caught and bent towards the inside see figure below a b c d e a Electrical component box cover b Front side...

Страница 59: ...rea 729 613 929 AB AA a mm Minimum foundation a Anchor point 4 HP AA AB 8 766 992 10 16 1076 1302 Fasten the unit in place using four foundation bolts M12 It is best to screw in the foundation bolts u...

Страница 60: ...iping 78 17 3 2 Checking refrigerant piping General guidelines 79 17 3 3 Checking refrigerant piping Setup 80 17 3 4 To perform a leak test 80 17 3 5 To perform vacuum drying 81 17 3 6 To insulate the...

Страница 61: ...polyethylene foam as insulation material with a heat transfer rate between 0 041 and 0 052 W mK 0 035 and 0 045 kcal mh C with a heat resistance of at least 120 C Insulation thickness Ambient tempera...

Страница 62: ...6 12 7 420 x 640 15 9 640 x 920 34 9 19 1 920 41 3 Example Downstream capacity for E capacity index of unit 1 Downstream capacity for D capacity index of unit 1 capacity index of unit 2 E Piping betw...

Страница 63: ...ess of the refrigerant piping shall comply with the applicable legislation The minimal pipe thickness for R410A piping must be in accordance with the table below Pipe mm Minimal thickness t mm 6 4 9 5...

Страница 64: ...of all the indoor units connected below the refnet header Indoor unit capacity index 2 pipes 200 KHRQ22M29H 200 x 290 290 x 640 KHRQ22M64H a 640 KHRQ22M75H a If the pipe size above the refnet header...

Страница 65: ...door and outdoor units a If the system capacity is 16 HP re read the first outdoor branch as seen from the indoor unit b Assume equivalent piping length of refnet joint 0 5 m and refnet header 1 m for...

Страница 66: ...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 u r s H1 H3 H2 Multi outdoor Branch with refnet header Example 3 r s u t With standard multi layout Indoor unit Refnet jo...

Страница 67: ...it and indoor unit 462 Dedicated setting on outdoor unit is required see 2 49 in 19 2 8 Mode 2 Field settings 4107 In case the outdoor location is lower than indoor extension is possible up till 90 m...

Страница 68: ...rd size Sizes bigger than the size up size are NOT allowed But even if you use the standard size you can increase the maximum allowable length after the first branch if all other conditions are met Ex...

Страница 69: ...p 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...

Страница 70: ...ake sure the outdoor and indoor units are mounted Connecting the refrigerant piping involves Routing and connecting the refrigerant piping to the outdoor unit Protecting the outdoor unit against conta...

Страница 71: ...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...

Страница 72: ...g with protective tape to prevent damage 17 2 5 To connect the refrigerant piping to the outdoor unit INFORMATION All local inter unit piping are field supplied except the accessory pipes NOTICE Preca...

Страница 73: ...aution label NOT allowed Allowed Make sure that the total length of the piping connected to the joint is absolute straight for more than 500 mm Only if a straight field piping of more than 120 mm is c...

Страница 74: ...through the front a a Close the areas marked with When the piping is routed from the front panel Only use clean pipes Hold the pipe end downwards when removing burrs Cover the pipe end when inserting...

Страница 75: ...rine it will deteriorate the refrigerant oil ALWAYS protect the surrounding surfaces e g insulation foam from heat when brazing 17 2 10 Using the stop valve and service port To handle the stop valve T...

Страница 76: ...the stop valve cap NOTICE Pay attention that mentioned torque range is applicable for opening 19 1 25 4 mm stop valves only To close the stop valve 1 Remove the stop valve cover 2 Insert a hexagon wre...

Страница 77: ...10 15 9 14 16 6 mm 19 1 19 21 8 mm 25 4 17 2 11 To remove the spun pipes WARNING Any gas or oil remaining inside the stop valve may blow off the spun piping If these instructions are NOT followed corr...

Страница 78: ...ut before continuing with the connection of the field piping in case the recovery was not complete 17 3 Checking the refrigerant piping 17 3 1 About checking the refrigerant piping Refrigerant piping...

Страница 79: ...ove all moisture air or nitrogen in the refrigerant piping If there is a possibility of moisture being present in the refrigerant piping for example water may have entered the piping first carry out t...

Страница 80: ...valve Close NOTICE The connections to the indoor units and all indoor units should also be leak and vacuum tested Keep any possible field supplied field piping valves open as well Refer to the indoor...

Страница 81: ...test and vacuum drying should be done before the power supply is set to the unit If not see 17 3 1 About checking the refrigerant piping 4 78 for more information To remove all moisture from the syste...

Страница 82: ...y Minimum thickness 30 C 75 to 80 RH 15 mm 30 C 80 RH 20 mm If there is a possibility that condensation on the stop valve might drip down into the indoor unit through gaps in the insulation and piping...

Страница 83: ...ront panel attached the unit cannot judge correctly whether it is operating properly or not NOTICE In case of maintenance and the system outdoor unit field piping indoor units does not contain any ref...

Страница 84: ...kg 105 CR 130 0 5 kg 1 5 kg 30 m 50 CR 70 0 kg 1 kg 70 CR 85 0 3 kg 0 5 kg 1 5 kg 85 CR 105 0 7 kg 1 kg 2 kg 105 CR 130 1 2 kg 1 5 kg a Piping length is considered the distance from the outdoor unit...

Страница 85: ...charging refrigerant Step 1 Calculate additional refrigerant charge amount R kg Refrigerant overcharge happened recover refrigerant to reach R Q Step 2 Open valves C and B to the liquid line Execute...

Страница 86: ...op valves R Q Continuation of previous page p p R410A d A 17 4 5 To charge refrigerant Follow the steps as described below Pre charging refrigerant 1 Calculate the additional amount of refrigerant to...

Страница 87: ...nifold connection to the liquid line and perform steps 4 8 INFORMATION If the total additional refrigerant amount was reached in step 3 by pre charging only record the amount of refrigerant that was a...

Страница 88: ...all the precautions mentioned in 19 Configuration 4 100 and 20 Commissioning 4118 into account 2 Turn on the power of the indoor units and outdoor unit 3 Activate outdoor unit setting 2 20 1 to start...

Страница 89: ...perature range for leak detection operation Retry when ambient conditions are satisfied Outdoor unit is out of temperature range for leak detection operation Retry when ambient conditions are satisfie...

Страница 90: ...To route and fix the transmission wiring 94 18 3 To connect the transmission wiring 96 18 4 To finish the transmission wiring 97 18 5 To route and fix the power supply 97 18 6 To connect the power sup...

Страница 91: ...ce redundant cable length in the unit NOTICE The distance between the high voltage and low voltage cables should be at least 50 mm NOTICE Do NOT operate the unit until the refrigerant piping is comple...

Страница 92: ...switch c Earth connection d Outdoor unit e Indoor unit f User interface g Indoor power supply wiring sheathed cable 230 V h Transmission wiring sheathed cable 16 V i Outdoor power supply wiring sheath...

Страница 93: ...nch a knockout hole hit on it with a hammer After knocking out the holes we recommend removing any burrs and paint the edges and areas around the holes using repair paint to prevent rusting When passi...

Страница 94: ...unit according to the table above multiply the result by 1 1 and select the next higher recommended fuse capacity Example Combining the RXYTQ30 by using the RXYTQ8 RXYTQ10 and RXYTQ12 Minimum circuit...

Страница 95: ...bility 2 a Fix to pipe insulation with tie wraps c Tie wrap Fix to factory mounted low voltage wiring d Tie wrap a Knockout hole has to be removed Close the hole to avoid small animals or dirt from en...

Страница 96: ...oor unit installation F1 F2 F1 F2 Q1 Q2 Q1 Q2 A1P d d e f b a c Q1 Q2 a Unit A master outdoor unit b Unit B slave outdoor unit c Unit C slave outdoor unit d Master slave transmission Q1 Q2 e Outdoor i...

Страница 97: ...wn in figure below a b c d e a Liquid pipe b Gas pipe c Insulator d Transmission wiring F1 F2 e Finishing tape 18 5 To route and fix the power supply The power supply wiring can be routed from the fro...

Страница 98: ...ion The length of the conductors between the power supply stress relief and the terminal block itself MUST be as such that the current carrying wires are tautened before the earth wire is in case the...

Страница 99: ...moved Attach both cables to the power supply terminal as indicated below L1 L2 L2 N 18 7 To check the insulation resistance of the compressor NOTICE If after installation refrigerant accumulates in th...

Страница 100: ...3 3 Example Automatic mode during cooling 115 19 3 4 Example Automatic mode during heating 116 19 1 Overview Configuration This chapter describes what you have to do and know to configure the system...

Страница 101: ...cial operation before normal operation can restart It will be indicated in below explanations See also 19 2 4 To access mode 1 or 2 4102 19 2 5 To use mode 1 4103 19 2 6 To use mode 2 4104 19 2 7 Mode...

Страница 102: ...panels except for the service cover on the electrical component box are closed while working Close the lid of the electrical component box firmly before turning on the power 19 2 4 To access mode 1 o...

Страница 103: ...to the default situation INFORMATION If you get confused in the middle of the process push BS1 to return to the default situation no indication on 7 segment displays blank refer to 19 2 4 To access mo...

Страница 104: ...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...

Страница 105: ...ter 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...

Страница 106: ...nt 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...

Страница 107: ...l Heat selector 2 0 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 an...

Страница 108: ...nto your system can be found in chapter 17 4 2 About charging refrigerant 483 2 20 Description 0 default Deactivated 1 Activated To stop the manual additional refrigerant charge operation when the req...

Страница 109: ...eeds 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...

Страница 110: ...n 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 limitati...

Страница 111: ...ving and optimum operation 4111 19 2 9 To connect the PC configurator to the outdoor unit X 2 7 A a b c 2 3 4 5 H J S T X27A A1P a PC b Cable EKPCCAB c Outdoor unit main PCB 19 3 Energy saving and opt...

Страница 112: ...ncy E g when your system is operating in heating you do not need as much heating under high outdoor ambient temperatures e g 15 C as under low outdoor ambient temperatures e g 5 C Using this idea the...

Страница 113: ...eration the condense temperature is allowed to go up to 49 C on temporary base depending on the situation When the request from the indoor units becomes more moderate the system will eventually go to...

Страница 114: ...emporary base depending on the situation In case of heating operation the condense temperature is allowed to go up to 46 C on temporary base depending on the situation When the request from the indoor...

Страница 115: ...A Actual 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 fa...

Страница 116: ...c C D 49 C 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 fa...

Страница 117: ...19 Configuration Installer and user reference guide 117 RXYTQ VRV IV heat pump for high ambient temperatures 4P561157 1B 2021 11 E Quick F Powerful...

Страница 118: ...pletion of the test run 122 20 7 Operating the unit 122 20 1 Overview Commissioning After installation and once the field settings are defined the installer is obliged to verify correct operation Ther...

Страница 119: ...lation and operation instructions as described in the installer and user reference guide Installation Check that the unit is properly installed to avoid abnormal noises and vibrations when starting up...

Страница 120: ...attached to the rear side of the front cover Installation date and field setting Be sure to keep record of the installation date on the sticker on the rear of the upper front panel according to EN6033...

Страница 121: ...t display will indicate and the indication Test operation and Under centralised control will display on the user interface of indoor units Steps during the automatic system test run procedure Step Des...

Страница 122: ...orrecting actions as explained in the malfunction code table Carry out the test operation again and confirm that the abnormality is properly corrected INFORMATION Refer to the installation manual of t...

Страница 123: ...properly please make sure the following is clear for the user Make sure that the user has the printed documentation and ask him her to keep it for future reference Inform the user that he can find th...

Страница 124: ...22 2 1 To use vacuum mode 125 22 2 2 To recover refrigerant 126 22 1 Maintenance safety precautions DANGER RISK OF ELECTROCUTION DANGER RISK OF BURNING SCALDING NOTICE Risk of electrostatic discharge...

Страница 125: ...the wiring diagram labelled on the back of the electrical component box cover Pay attention to the fan It is dangerous to inspect the unit while the fan is running Make sure to turn off the main switc...

Страница 126: ...e If you want to pump down the system and there is a leak in the refrigerant circuit Do NOT use the unit s automatic pump down function with which you can collect all refrigerant from the system into...

Страница 127: ...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 malfunc...

Страница 128: ...refrigerant amount recharge unit Check the user interface s display or transmission wiring between the outdoor unit and the indoor unit Electronic expansion valve malfunction main Y1E A1P X21A Check c...

Страница 129: ...circuit 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 sens...

Страница 130: ...0A X28A 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 X28...

Страница 131: ...ndoor 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 R407...

Страница 132: ...the indoor 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 sto...

Страница 133: ...ratures 4P561157 1B 2021 11 24 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 legisl...

Страница 134: ...5 2 Piping diagram Outdoor unit 136 25 3 Wiring diagram Outdoor unit 137 25 1 Service space Outdoor unit Make sure the space around the unit is adequate for servicing and the minimum space for air inl...

Страница 135: ...uction 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 hei...

Страница 136: ...way valve sub Y5S f Accumulator q Electrical component box g Expansion valve main Y1E r Service port refrigerant charge h Expansion valve subcool heat exchanger Y2E s Stop valve liquid i Expansion val...

Страница 137: ...oil1 Y3S c Heat exchanger n Solenoid valve oil2 Y4S d Fan o 4 way valve main Y1S e Fan motor M1F M2F p 4 way valve sub Y5S f Accumulator q Electrical component box g Expansion valve main Y1E r Servic...

Страница 138: ...PH 7 Only for RYYQ model 8 Only for RYYQ RYMQ model 9 For 8 12 HP Connector X1A M1F is white connector X2A M2F is red 9 For 14 20 HP Colours see below 10 Colours see below Symbols Field wiring Termina...

Страница 139: ...ic relay Y3S K11R A1P Magnetic relay Y5S L1R Reactor M1C Motor compressor M1F Motor fan PS A1P A3P Switching power supply Q1DI Earth leakage circuit breaker field supply Q1LD A1P Earth current detecto...

Страница 140: ...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 power ada...

Страница 141: ...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 Re...

Страница 142: ...nsion 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 oi...

Страница 143: ...roduct 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 in...

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Содержание VRV IV+ RXYTQ8U5YF

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