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23

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Troubleshooting

Installer and user reference guide

139

R R8T7V1B
VRV IV heat pump for indoor installation
4P499898-1A – 2020.10

23 Troubleshooting

In this chapter

Overview: Troubleshooting .................................................................................................................................................... 139

Precautions when troubleshooting........................................................................................................................................ 139

Solving problems based on error codes................................................................................................................................. 139
23.3.1

Error codes: Overview............................................................................................................................................ 140

23.1 Overview: Troubleshooting

Before troubleshooting

Carry out a thorough visual inspection of the unit and look for obvious defects such
as loose connections or defective wiring.

23.2 Precautions when troubleshooting

WARNING

▪

When carrying out an inspection on the switch box of the unit, ALWAYS make
sure that the unit is disconnected from the mains. Turn off the respective circuit
breaker.

▪

When a safety device was activated, stop the unit and find out why the safety
device was activated before resetting it. NEVER shunt safety devices or change
their values to a value other than the factory default setting. If you are unable to
find the cause of the problem, call your dealer.

DANGER: RISK OF ELECTROCUTION

WARNING

Prevent hazards due to inadvertent resetting of the thermal cut-out: power to this
appliance MUST NOT be supplied through an external switching device, such as a
timer, or connected to a circuit that is regularly turned ON and OFF by the utility.

DANGER: RISK OF BURNING/SCALDING

23.3 Solving problems based on error codes

In case of a displayed malfunction code, perform correcting actions as explained in
the malfunction code table.

After correcting the abnormality, press BS3 to reset the malfunction code and retry
operation.

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Содержание VRV IV RKXYQ5T8Y1B Series

Страница 1: ...Installer and user reference guide VRV IV heat pump for indoor installation RKXYQ5T8Y1B RDXYQ5T8V1B RKXYQ8T7Y1B RDXYQ8T7V1B...

Страница 2: ...program 29 8 3 2 To use the dry program WITHOUT cool heat changeover remote control switch 29 8 3 3 To use the dry program WITH cool heat changeover remote control switch 30 8 4 Adjusting the air flo...

Страница 3: ...51 14 3 5 To remove the transportation EPS 51 14 4 Heat exchanger unit 52 14 4 1 To unpack the heat exchanger unit 52 14 4 2 To handle the heat exchanger unit 52 14 4 3 To remove the accessories from...

Страница 4: ...l wiring 95 18 1 1 Precautions when connecting the electrical wiring 95 18 1 2 Field wiring Overview 97 18 1 3 About the electrical wiring 99 18 1 4 Guidelines when knocking out knockout holes 99 18 1...

Страница 5: ...136 22 3 Checklist for yearly maintenance of the heat exchanger unit 137 22 4 About service mode operation 137 22 4 1 To use vacuum mode 137 22 4 2 To recover refrigerant 138 23 Troubleshooting 139 2...

Страница 6: ...ion and operation manual Installation and operation instructions Format Paper in the accessory bag of the compressor unit Heat exchanger unit installation manual Installation instructions Format Paper...

Страница 7: ...t could result in death or serious injury WARNING FLAMMABLE MATERIAL CAUTION Indicates a situation that could result in minor or moderate injury NOTICE Indicates a situation that could result in equip...

Страница 8: ...and user reference guide 8 RKXYQ5T8 8T7Y1B RDXYQ5T8 8T7V1B VRV IV heat pump for indoor installation 4P499898 1A 2020 10 Symbol Explanation Indicates a table title or a reference to it Example 1 3 Tab...

Страница 9: ...igerant WARNING 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...

Страница 10: ...ovide sufficient space around the unit for servicing and air circulation Make sure the installation site withstands the weight and vibration of the unit Make sure the area is well ventilated Do NOT bl...

Страница 11: ...he unit s compressor does NOT have to operate WARNING ALWAYS recover the refrigerant Do NOT release them directly into the environment Use a vacuum pump to evacuate the installation NOTICE After all t...

Страница 12: ...nal refrigerant 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 wir...

Страница 13: ...ssary opening 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 d...

Страница 14: ...al components 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...

Страница 15: ...nit unattended 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 leak...

Страница 16: ...ing 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 circuit breakers Secure the electrical wiring...

Страница 17: ...en 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 power supply is pulled loose from the...

Страница 18: ...For the user Installer and user reference guide 18 RKXYQ5T8 8T7Y1B RDXYQ5T8 8T7V1B VRV IV heat pump for indoor installation 4P499898 1A 2020 10 For the user...

Страница 19: ...e and persons with reduced physical sensory or mental capabilities or lack of experience and knowledge can only use this appliance if they have been given supervision or instruction concerning the use...

Страница 20: ...following symbol This means that the batteries may NOT be mixed with unsorted household waste If a chemical symbol is printed beneath the symbol this chemical symbol means that the battery contains a...

Страница 21: ...ing flap is 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...

Страница 22: ...have qualified service personnel confirm that the point of leakage has been repaired or corrected before resuming operation WARNING Stop operation and shut off the power if anything unusual occurs bu...

Страница 23: ...ustive list depending on compressor unit model heat exchanger unit model and indoor unit model combinations VRV direct expansion DX indoor units air to air applications AHU air to air applications EKE...

Страница 24: ...el Some parts 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 o...

Страница 25: ...e the system when using 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...

Страница 26: ...designate the master user interface VRV DX 32 8 5 3 About control systems 32 8 1 Operation range Use the system in the following temperature and humidity ranges for safe and effective operation Specif...

Страница 27: ...acity from dropping or cold air from blowing Defrost operation In heating operation freezing of the heat exchanger unit s air cooled coil increases over time restricting the energy transfer to the hea...

Страница 28: ...ir Contact your dealer for details 8 2 4 To operate the system WITHOUT cool heat changeover remote control switch 1 Press the operation mode selector button on the user interface several times and sel...

Страница 29: ...nterface 8 3 Using the dry program 8 3 1 About the dry program The function of this program is to decrease the humidity in your room with minimal temperature decrease minimal room cooling The micro co...

Страница 30: ...selector button on the user interface several times and select program dry operation 3 Press the ON OFF button of the user interface Result The operation lamp lights up and the system starts operatin...

Страница 31: ...ion can be adjusted in one of the following ways The air flow flap itself adjusts its position The air flow direction can be fixed by the user Automatic and desired position WARNING Never touch the ai...

Страница 32: ...rol of all slave user interfaces connected to the same compressor unit flashes 2 Press the operation mode selector button of the controller that you wish to designate as the master user interface Resu...

Страница 33: ...r 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 to Maintenance in the indoor unit manual Keep t...

Страница 34: ...y reducing the delivered capacity and increasing the system s efficiency Hi sensible economic cooling heating The refrigerant temperature is set higher lower cooling heating compared to basic operatio...

Страница 35: ...enzine 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...

Страница 36: ...cleaned air filters back in the same position 10 3 About the refrigerant This product contains fluorinated greenhouse gases Do NOT vent gases into the atmosphere Refrigerant type R410A Global warming...

Страница 37: ...ify disassemble remove reinstall or repair the unit yourself as incorrect dismantling or installation may cause an electric shock or fire Contact your dealer In case of accidental refrigerant leaks ma...

Страница 38: ...e distortion etc the unit 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 su...

Страница 39: ...umber 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...

Страница 40: ...ng do not work 43 11 2 4 Symptom The fan speed does not correspond to the setting 43 11 2 5 Symptom The fan direction does not correspond to the setting 43 11 2 6 Symptom White mist comes out of a uni...

Страница 41: ...t detector or floor temperature sensor malfunction indoor User interface thermistor malfunction indoor Fan or drain pump malfunction heat exchanger unit PCB malfunction compressor unit Current leakage...

Страница 42: ...thermistor malfunction Heat exchanger unit capacity setting malfunction Abnormal low pressure drop faulty expansion valve Reversed power supply phase malfunction INV voltage power shortage System tes...

Страница 43: ...lled 11 2 3 Symptom Fan operation is possible but cooling and heating do not work Immediately after the power is turned on The micro computer is getting ready to operate and is performing a communicat...

Страница 44: ...sound is heard when the system stops after heating operation Expansion and contraction of plastic parts caused by temperature change make this noise A low sah choro choro sound is heard while the ind...

Страница 45: ...normal condition This continues for 1 minute 11 2 16 Symptom The compressor in the compressor unit does not stop after a short heating operation This is to prevent refrigerant from remaining in the co...

Страница 46: ...reference guide 46 RKXYQ5T8 8T7Y1B RDXYQ5T8 8T7V1B VRV IV heat pump for indoor installation 4P499898 1A 2020 10 12 Relocation Contact your dealer for removing and reinstalling the total unit Moving un...

Страница 47: ...Disposal 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 a...

Страница 48: ...For the installer Installer and user reference guide 48 RKXYQ5T8 8T7Y1B RDXYQ5T8 8T7V1B VRV IV heat pump for indoor installation 4P499898 1A 2020 10 For the installer...

Страница 49: ...ular economy for refrigerants One of the actions to achieve this is the reuse of reclaimed refrigerant in VRV units produced and sold in Europe For more information about the countries that are in sco...

Страница 50: ...4 3 3 To remove the accessories from the compressor unit 1 Remove the accessories part 1 a 1 b 1 c 1 d 1 e 1 f 3 a General safety precautions b Compressor unit installation and operation manual c Fluo...

Страница 51: ...iping accessories for circuit 2 to the indoor units 5 HP 8 HP c Gas 15 9 mm 19 1 mm d Liquid 9 5 mm 9 5 mm e Piping adapter 19 1 22 2 mm that you need when connecting piping to the heat exchanger unit...

Страница 52: ...k the heat exchanger unit 1 2 14 4 2 To handle the heat exchanger unit NOTICE When removing the heat exchanger unit from the pallet do NOT place the suction or discharge side of the unit on the floor...

Страница 53: ...accessories from the heat exchanger unit 1 1 1 1 1 3 1 b c d a e f g a Optional filter for debris b Heat exchanger unit installation manual c Sealing pad d Drain hose e Metal clamp f Screw for shield...

Страница 54: ...ons of indoor units 57 15 5 3 Possible options for the compressor unit and heat exchanger unit 57 15 1 Overview About the units and options This chapter contains information about Identification of th...

Страница 55: ...tion Model identification Example R D X Y Q 5 T8 V1 B Code Explanation R Outdoor air cooled D Heat exchanger unit X Heat pump no continuous heating Y Single module Q Refrigerant R410A 5 8 Capacity cla...

Страница 56: ...the humidity is beyond these conditions safety devices may be put in action and the air conditioner may not operate 15 4 System layout NOTICE Design of the system must not be done at temperatures bel...

Страница 57: ...oor units can be connected to a VRV IV heat pump for indoor installation The list is non exhaustive and is depending on the combination of compressor unit heat exchanger unit and indoor unit models VR...

Страница 58: ...through a personal computer interface For this option EKPCCAB is required which is a dedicated cable to communicate with the compressor unit The user interface software is available on http www daikin...

Страница 59: ...C A B C X1M 7 Fix the cables with cable ties 8 Turn ON the DIP switch DS1 1 1 2 3 4 OFF X66A ON DS1 A1P 9 Reattach the service covers See 18 5 To close the compressor unit 4105 10 Perform a test run...

Страница 60: ...n Installation is optional It is recommended in places where a lot of debris or dirt example leafs can go into the suction ducting Where Install the filter in one of the following places Suction openi...

Страница 61: ...lines when installing the ducting 69 16 4 4 Guidelines when installing the drain piping 70 16 1 Preparing the installation site Do NOT install the unit in places often used as work place In case of co...

Страница 62: ...keep a proper distance from stereo equipment personal computers etc b c f d d a e b c mm g b c a Personal computer or radio b Fuse c Earth leakage protector d User interface e Indoor unit f Compressor...

Страница 63: ...ng places because it may shorten the life of the unit Where the voltage fluctuates a lot In vehicles or vessels Where acidic or alkaline vapour is present 16 1 2 Installation site requirements of the...

Страница 64: ...ed in a room which is sufficiently large This assures that the maximum concentration level of refrigerant gas is not exceeded in the unlikely event of major leak in the system and this in accordance t...

Страница 65: ...stalled In a case such as the following calculate the volume of D E as a single room or as the smallest room D When there are no smaller room divisions E When there is a room division that has an open...

Страница 66: ...n 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 2 2 To open the compressor...

Страница 67: ...Guidelines when installing the compressor unit Check the strength and level of the installation ground so that the unit will not cause any operating vibration or noise If the vibration might be trans...

Страница 68: ...tional equipment When installing optional equipment also read the installation manual of the optional equipment Depending on the field conditions it might be easier to install the optional equipment f...

Страница 69: ...pecially in sound sensitive areas Example Sound absorbing ducting sound absorbing baffle in the ducting Air leaks Wind aluminium tape around the connection between the heat exchanger unit and the duct...

Страница 70: ...1 100 to prevent air from being trapped in the piping Use hanging bars as shown 1 1 5 m a a Hanging bar O Allowed X Not allowed Condensation Take measures against condensation Insulate the complete dr...

Страница 71: ...ain pump and drain reservoir are to be field supplied Drain pump Minimum flow rate 45 l h Feedback contact You can connect a contact that gives the status of the drain pump to the heat exchanger unit...

Страница 72: ...3 3 Checking refrigerant piping Setup 86 17 3 4 To perform a leak test 87 17 3 5 To perform vacuum drying 88 17 3 6 To insulate the refrigerant piping 89 17 4 Charging refrigerant 89 17 4 1 About cha...

Страница 73: ...g the following tables and reference figure only for indication A a B D D C D D b EKEXV AHU VRV DX VRV DX c c a Heat exchanger unit b Compressor unit c Refrigerant branch kit VRV DX VRV DX indoor unit...

Страница 74: ...If the recommended gas pipe size up is not available you must use the standard size which might result in a small capacity decrease 8 HP You must increase the size size up of the main liquid pipe betw...

Страница 75: ...5 HP KHRQ22M20T 8 HP KHRQ22M29T9 Refnet joints at other branches For refnet joints other than the first branch select the proper branch kit model based on the total capacity index of all indoor units...

Страница 76: ...m 90 m 3 Total piping length x L1 L2 L3 L4 L5 L6 L7 Minimum 10 m x Maximum in case of 8 HP x 300 m Maximum in case of 5 HP If Then L1 30 m x 115 m L1 25 m x 120 m L1 20 m x 125 m L1 15 m x 130 m L1 1...

Страница 77: ...iping Keeping in mind the guidelines for Pipe bending Brazing Using the stop valves Removing pinched pipes 17 2 2 Precautions when connecting the refrigerant piping INFORMATION Also read the precautio...

Страница 78: ...ducing valve a b c d e f f a Refrigerant piping b Part to be brazed c Taping d Manual valve e Pressure reducing valve f Nitrogen Do NOT use anti oxidants when brazing pipe joints Residue can clog pipe...

Страница 79: ...so may break the valve body To open the stop valve 1 Remove the stop valve cover 2 Insert a hexagon wrench into the stop valve and turn the stop valve counterclockwise 3 When the stop valve cannot be...

Страница 80: ...ter handling the stop valve tighten the stop valve cover securely and check for refrigerant leaks For the tightening torque refer to the table below To handle the service port Always use a charge hose...

Страница 81: ...rom all 4 pinched pipes Depending on your available tools use method 1 manifold with refrigerant line splitters required or method 2 Manifold Connections Compressor unit p p e B A Method 1 Connect to...

Страница 82: ...ore continuing with the connection of the field piping in case the recovery was not complete 17 2 7 To connect the refrigerant piping to the compressor unit NOTICE Be sure to use the supplied accessor...

Страница 83: ...kout 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 wir...

Страница 84: ...ct the refrigerant piping to the heat exchanger unit 1 Remove the cover 2 Remove the 2 insulation pieces 3 Put a wet cloth in front of the EPS to protect the drain pan 4 Braze the liquid and gas pipin...

Страница 85: ...or units are powered on When the units are powered on the expansion valves will initialise This means that they will close Leak test and vacuum drying of field piping heat exchanger unit and indoor un...

Страница 86: ...k test or vacuum drying NOTICE Make sure that all field supplied field piping valves are OPEN not compressor unit stop valves before you start leak test and vacuuming For more information on the state...

Страница 87: ...ing scales d Refrigerant R410A tank siphon system e Vacuum pump f Liquid line stop valve circuit 2 to indoor units g Gas line stop valve circuit 2 to indoor units h Gas line stop valve circuit 1 to he...

Страница 88: ...on of flared joints between the brass flare nut and the copper flare 17 3 5 To perform vacuum drying NOTICE The connections to the indoor units and to the heat exchanger unit and all indoor units and...

Страница 89: ...perature of 70 C for liquid piping and polyethylene foam which can withstand a temperature of 120 C for gas piping Reinforce the insulation on the refrigerant piping according to the installation envi...

Страница 90: ...ses NOTICE If the power of some units is turned off the charging procedure cannot be finished properly NOTICE Be sure to turn ON the power 6 hours before operation in order to have power running to th...

Страница 91: ...59 10 mm 0 065 12 7 mm 0 12 12 mm 0 097 17 4 4 To charge refrigerant Charging refrigerant consists of 2 stages Stage Description Stage 1 Pre charging Recommended in case of larger systems Can be skipp...

Страница 92: ...alves A B and C D Refrigerant line splitter 2 Open valves C on line of B and B 3 Pre charge refrigerant until the determined additional refrigerant amount is reached or pre charging is not possible an...

Страница 93: ...n 4 107 and 20 Commissioning 4129 into account 8 Turn on the power of the indoor units compressor unit and heat exchanger unit 9 Activate setting 2 20 to start the manual additional refrigerant charge...

Страница 94: ...g action 23 3 Solving problems based on error codes 4139 17 4 6 To fix the fluorinated greenhouse gases label 1 Fill in the label as follows b Contains fluorinated greenhouse gases 2 1 1 1 2 2 kg tCO2...

Страница 95: ...unit 105 18 6 To close the heat exchanger unit 105 18 7 To check the insulation resistance of the compressor 105 18 1 About connecting the electrical wiring Typical workflow Connecting the electrical...

Страница 96: ...sure side Do NOT use taped wires stranded conductor wires extension cords or connections from a star system They can cause overheating electrical shock or fire Do NOT install a phase advancing capacit...

Страница 97: ...a Main switch b Earth connection c Power supply wiring including earth sheathed cable F1 F2 Transmission wiring sheathed shielded cable using shielded cable for the transmission wiring is mandatory f...

Страница 98: ...th distance between compressor unit and furthest indoor unit 300 m Total wiring length distance between compressor unit and all indoor units and between compressor unit and heat exchanger unit 600 m I...

Страница 99: ...rrs 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 damag...

Страница 100: ...ampacity Recommended fuses RKXYQ5 13 5 A 16 A RKXYQ8 17 4 A 20 A Phase and frequency 3N 50 Hz Voltage 380 415 V Power supply Heat exchanger unit The power supply must be protected with the required sa...

Страница 101: ...en the compressor unit 466 2 Connect the transmission wiring as follows F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 b X2M X2M X2M X1M A1P RKXYQ5 RDXYQ5 TO OUT D TO IN D F1 F2 F1 F2 a1 a2 a2...

Страница 102: ...th leakage circuit breaker b Fuse c Power supply cable 4 Route the wiring through the frame and fix the cables power supply and transmission wiring with cable ties INFORMATION To make routing the wiri...

Страница 103: ...ransmission wiring as follows F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 b X2M X2M X2M X1M A1P RKXYQ5 RDXYQ5 TO OUT D TO IN D F1 F2 F1 F2 a1 a2 a2 a F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F...

Страница 104: ...the wiring through the frame and fix the cables power supply and transmission wiring with cable ties A1P X1M X2M b a c c a Transmission wiring b Power supply c Cable tie 18 4 To finish the transmissi...

Страница 105: ...e the heat exchanger unit NOTICE When closing the cover make sure that the tightening torque does NOT exceed 4 1 N m 2 SW8 18 7 To check the insulation resistance of the compressor NOTICE If after ins...

Страница 106: ...nstallation 4P499898 1A 2020 10 If Then 1 M Insulation resistance is OK This procedure is finished 1 M Insulation resistance is not OK Go to the next step 2 Turn ON the power and leave it on for 6 hou...

Страница 107: ...ttings 124 19 3 3 Example Automatic mode during cooling 126 19 3 4 Example Automatic mode during heating 127 19 1 Overview Configuration This chapter describes what you have to do and know to configur...

Страница 108: ...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...

Страница 109: ...OT CHANGE THE FACTORY SETTING 8 HP DS1 1 COOL HEAT selector see Possible options for the compressor unit and heat exchanger unit 457 OFF not installed factory setting DS1 2 4 NOT USED DO NOT CHANGE TH...

Страница 110: ...scription H1P OFF Default situation H1P flashing Mode 1 H1P ON Mode 2 0 0 8 0 0 0 H2P H7P binary 8 Setting 8 in mode 2 0 0 0 4 0 0 H2P H7P binary 4 Value 4 in mode 2 19 2 4 To access mode 1 or 2 After...

Страница 111: ...t check the communication wiring Switching between modes Use BS1 to switch between the default situation mode 1 and mode 2 B S 1 5 s B S 1 B S 1 B S 1 a c b B S 1 5 s B S 1 B S 1 B S 1 a b c 5 HP 8 HP...

Страница 112: ...ected units heat exchanger unit indoor units as follows Action Button display 1 Start from the default situation 2 Select mode 1 BS1 1 3 Select setting 5 X depends on the setting that you want to sele...

Страница 113: ...he default situation 2 Select mode 2 BS1 5 s 3 Select setting 8 X depends on the setting that you want to select BS2 X binary 8 4 Select value 4 8 C a Display the current value b Change to 4 X depends...

Страница 114: ...isplay Default situation H1P OFF in case of 5 HP You can read out the following information Value Description H6P Shows the status of low noise operation OFF Unit is currently not operating under low...

Страница 115: ...a forced power consumption limitation by field setting The unit will always operate at the selected power consumption limitation The second method is to enable power consumption limitation based on an...

Страница 116: ...hows the 2nd last malfunction code 1 16 Shows the 3rd last malfunction code 7 segments display Mode 1 in case of 8 HP You can read out the following information Setting Value Description 1 1 Shows the...

Страница 117: ...formation see setting 2 8 1 6 Shows the current Tc target parameter position For more information see setting 2 9 1 10 Shows the total number of connected units heat exchanger unit indoor units It can...

Страница 118: ...alue 5 HP 7 LEDs display The seven LEDs give a binary representation of the setting value number 8 HP 7 segments display The three 7 segments show the setting value number For more information and adv...

Страница 119: ...pressure of the heat exchanger unit according to the ducting requirements 0 30 Pa 1 default default 60 Pa 2 90 Pa 3 120 Pa 4 150 Pa 2 16 Test run heat exchanger unit When activated the heat exchanger...

Страница 120: ...te the automatic low noise operation function of the unit and define the level of operation Depending on the chosen level the noise level will be lowered The start and stop moments for this function a...

Страница 121: ...der 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 accordi...

Страница 122: ...heat pump system is equipped with advanced energy saving functionality Depending on the priority emphasises can be put on energy saving or comfort level Several parameters can be selected resulting in...

Страница 123: ...s efficiency 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...

Страница 124: ...orary base depending on the situation In case of heating operation the condense temperature is allowed to go up to 49 C on temporary base depending on the situation When the request from the indoor un...

Страница 125: ...e operation mode above 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 temp...

Страница 126: ...n case of 5 HP This setting is used in conjunction with setting 2 9 19 3 3 Example Automatic mode during cooling A B E 100 50 Te C D 3 C 6 C 35 C F A Actual load curve B Virtual load curve initial cap...

Страница 127: ...unit set temperature B Operation start C Operating time D Mild E Quick F Powerful 19 3 4 Example Automatic mode during heating A B 100 70 E Tc C D 49 C 46 C F 2 C A Virtual load curve default automati...

Страница 128: ...de 128 RKXYQ5T8 8T7Y1B RDXYQ5T8 8T7V1B VRV IV heat pump for indoor installation 4P499898 1A 2020 10 Quick Powerful Mild Room temperature evolution A B C D E F A Indoor unit set temperature B Operation...

Страница 129: ...ures described below This chapter describes what you have to do and know to commission the system after it is configured Commissioning typically consists of the following stages 1 Checking the Checkli...

Страница 130: ...to avoid abnormal noises and vibrations when starting up the unit Field wiring Be sure that the field wiring has been carried out according to the instructions described in the chapter Connecting the...

Страница 131: ...nstallation date and field setting Be sure to keep a record of the installation date on the sticker on the rear of the front panel according to EN60335 2 40 and keep record of the contents of the fiel...

Страница 132: ...power to the compressor unit heat exchanger unit and the connected indoor units NOTICE Be sure to turn ON the power 6 hours before operation in order to have power running to the crankcase heater and...

Страница 133: ...nd to protect the compressor 3 Make sure the default idle situation is existing see To access mode 1 or 2 4110 Push BS2 for 5 seconds or more The unit will start test operation Result The test operati...

Страница 134: ...ting actions as explained in the malfunction code table Carry out the test operation again and confirm that the abnormality is properly corrected INFORMATION If a malfunction occurs In case of 5 HP Th...

Страница 135: ...t operates 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 c...

Страница 136: ...and service 136 22 2 Maintenance safety precautions 136 22 2 1 To prevent electrical hazards 136 22 3 Checklist for yearly maintenance of the heat exchanger unit 137 22 4 About service mode operation...

Страница 137: ...y maintenance of the heat exchanger unit Check the following at least once a year Heat exchanger The heat exchanger can get blocked up due to dust dirt leaves etc It is recommended to clean the heat e...

Страница 138: ...ase of 8 HP to stop vacuuming mode 22 4 2 To recover refrigerant This should be done with a refrigerant recovery unit Follow the same procedure as for vacuuming method DANGER RISK OF EXPLOSION Pump do...

Страница 139: ...ns Turn off the respective circuit breaker When a safety device was activated stop the unit and find out why the safety device was activated before resetting it NEVER shunt safety devices or change th...

Страница 140: ...e Sub code 23 3 1 Error codes Overview In case of 5 HP Main code Cause Solution Heat exchanger fan malfunction Drain pump feedback contact is open In the heat exchanger unit Check connection on PCB A1...

Страница 141: ...alfunction Heat exchanger unit R2T A1P X18A Check connection on PCB or actuator Suction temperature sensor malfunction Compressor unit R3T A1P X12A Compressor unit R5T A1P X12A Check connection on PCB...

Страница 142: ...r unit are left closed The piping and wiring of the specified indoor unit or heat exchanger unit are not connected correctly to the compressor unit Open the stop valves on both the gas and liquid side...

Страница 143: ...R21T A1P X29A Open stop valves Check refrigerant amount recharge unit Refrigerant overcharge Stop valve closed Check refrigerant amount recharge unit Open stop valves Ambient temperature sensor malfu...

Страница 144: ...nsor malfunction Compressor unit S1NPL short circuit A1P X31A Check connection on PCB or actuator Transmission outdoor unit inverter INV1 transmission trouble Compressor unit A1P X20A X28A X42A Check...

Страница 145: ...at are currently connected If they are not proper replace them with proper ones Check if the compressor unit and heat exchanger unit are compatible 5 HP heat exchanger unit connected Check installatio...

Страница 146: ...door installation 4P499898 1A 2020 10 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 applica...

Страница 147: ...gram Compressor unit 149 25 3 Wiring diagram Heat exchanger unit 152 25 1 Piping diagram Compressor unit and heat exchanger unit 5 HP R2T R3T R1T M1F M2F Y1E Y3E R2T M1C R3T R7T R4T Y1S S1NPL S1PH S1N...

Страница 148: ...witch Y1E Y3E Electronic expansion valve Y1S Solenoid valve 4 way valve Heating Cooling 8 HP Y2E R21T M1C R3T R5T R6T Y1S S1NPL S1PH S1NPH R7T c b f g a d f h f i j e B k f i R2T R3T R1T M1F M2F Y1E M...

Страница 149: ...2 Wiring diagram Compressor unit The wiring diagram is delivered with the unit located on the switch box cover Symbols X1M Main terminal Earth wiring 15 Wire number 15 Field wire Field cable 12 2 Conn...

Страница 150: ...rip power supply X2M Terminal strip transmission wiring X Y Connector Y3E Electronic expansion valve Y1S Solenoid valve 4 way valve Z C Noise filter ferrite core Z F Noise filter A1P Notes for 8 HP 1...

Страница 151: ...pply A1P A3P Q1DI Earth leakage circuit breaker field supply Q1RP Phase reversal detect circuit A1P R21T Thermistor M1C discharge R3T Thermistor accumulator R5T Thermistor subcool liquid pipe R6T Ther...

Страница 152: ...al Earth wiring 15 Wire number 15 Field wire Field cable 12 2 Connection continues on page 12 column 2 1 Several wiring possibilities Option Not mounted in switch box Wiring depending on model PCB Leg...

Страница 153: ...Y1B RDXYQ5T8 8T7V1B VRV IV heat pump for indoor installation 4P499898 1A 2020 10 V1R Diode module A1P X1M Terminal strip power supply X2M Terminal strip transmission wiring X Y Connector Y1E Electroni...

Страница 154: ...certain product 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 Main...

Страница 155: ......

Страница 156: ...4P499898 1A 2020 10 Copyright 2017 Daikin Verantwortung f r Energie und Umwelt...

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