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Table of contents

Installer and user reference guide

REMA5+REYA8~20A7Y1B
VRV 5 heat recovery
4P687640-1 – 2022.07

To perform a BS/indoor unit connection check ............................................................................................................. 153

22.9

Operating the unit........................................................................................................................................................... 155

23 Hand-over to the user

156

24 Maintenance and service

157

24.1

Maintenance safety precautions.................................................................................................................................... 157
24.1.1

To prevent electrical hazards ......................................................................................................................... 157

24.2

Checklist for yearly maintenance of the outdoor unit................................................................................................... 158

24.3

About service mode operation....................................................................................................................................... 158
24.3.1

To use vacuum mode ..................................................................................................................................... 158

24.3.2

To recover refrigerant .................................................................................................................................... 159

25 Troubleshooting

160

25.1

Overview: Troubleshooting ............................................................................................................................................ 160

25.2

Precautions when troubleshooting ................................................................................................................................ 160

25.3

Solving problems based on error codes ......................................................................................................................... 160
25.3.1

Error codes: Overview .................................................................................................................................... 161

25.4

Refrigerant leak detection system.................................................................................................................................. 167

26 Disposal

170

27 Technical data

171

27.1

Service space: Outdoor unit ........................................................................................................................................... 171

27.2

Piping diagram: Outdoor unit ......................................................................................................................................... 173

27.3

Wiring diagram: Outdoor unit ........................................................................................................................................ 176

28 Glossary

179

Содержание VRV 5 REYA8A7Y1B

Страница 1: ...Installer and user reference guide VRV 5 heat recovery REYA8A7Y1B REYA10A7Y1B REYA12A7Y1B REYA14A7Y1B REYA16A7Y1B REYA18A7Y1B REYA20A7Y1B REMA5A7Y1B...

Страница 2: ...the air flow flap 31 7 6 Setting the master user interface 32 7 6 1 About setting the master user interface 32 7 6 2 To designate the master user interface 32 7 7 About control systems 33 8 Energy sa...

Страница 3: ...options 57 15 4 2 Possible combinations of indoor units 57 15 4 3 Possible combinations of outdoor units 57 15 4 4 Possible options for the outdoor unit 58 16 Special requirements for R32 units 60 16...

Страница 4: ...ng the electrical wiring 115 20 1 1 Precautions when connecting the electrical wiring 115 20 1 2 About the electrical wiring 117 20 1 3 Guidelines when knocking out knockout holes 118 20 1 4 About ele...

Страница 5: ...hecklist for yearly maintenance of the outdoor unit 158 24 3 About service mode operation 158 24 3 1 To use vacuum mode 158 24 3 2 To recover refrigerant 159 25 Troubleshooting 160 25 1 Overview Troub...

Страница 6: ...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 Digita...

Страница 7: ...al information Symbols used on the unit Symbol Explanation Before installation read the installation and operation manual and the wiring instruction sheet Before performing maintenance and service tas...

Страница 8: ...e instructions described in the Daikin documentation WARNING Tear apart and throw away plastic packaging bags so that nobody especially children can play with them Possible risk suffocation WARNING Pr...

Страница 9: ...ble 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 2 1 3 Refrigerant in case of R410A or R32 I...

Страница 10: ...complies with applicable legislation In Europe EN378 is the applicable standard NOTICE Make sure the field piping and connections are NOT subjected to stress NOTICE After all the piping has been conn...

Страница 11: ...ection having a contact separation in all poles providing full disconnection under overvoltage category III condition MUST be installed in the fixed wiring WARNING ONLY use copper wires Make sure the...

Страница 12: ...heat When connecting wiring which is the same thickness do as shown in the figure above For wiring use the designated power wire and connect firmly then secure to prevent outside pressure being exert...

Страница 13: ...guarantee to provide adequate protection to radio reception in such locations CAUTION Excessive refrigerant concentrations in a closed room can lead to oxygen deficiency WARNING If the appliance cont...

Страница 14: ...The drying material may dissolve and damage the system CAUTION Install the refrigerant piping or components in a position where they are unlikely to be exposed to any substance which may corrode comp...

Страница 15: ...devices ventilate the room and contact the dealer where you purchased the unit Do NOT use the unit until a service person confirms that the part from which the refrigerant leaked has been repaired WA...

Страница 16: ...ring All components procured on site and all electrical construction MUST comply with the applicable legislation WARNING ALWAYS use multicore cable for power supply cables CAUTION When connecting the...

Страница 17: ...that is regularly turned ON and OFF by the utility 3 1 Instructions for equipment using R32 refrigerant WARNING MILDLY FLAMMABLE MATERIAL The refrigerant inside this unit is mildly flammable WARNING D...

Страница 18: ...esign and install piping in refrigerating systems such as to minimise the likelihood of hydraulic shock damaging the system Mount the indoor equipment and pipes securely and protect them to avoid acci...

Страница 19: ...For the user Installer and user reference guide 19 REMA5 REYA8 20A7Y1B VRV 5 heat recovery 4P687640 1 2022 07 For the user...

Страница 20: ...ars and above and persons with reduced physical sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in...

Страница 21: ...ns that the batteries may NOT be mixed with unsorted household waste If a chemical symbol is printed beneath the symbol this chemical symbol means that the battery contains a heavy metal above a certa...

Страница 22: ...the air flow for a long time WARNING This unit contains electrical and hot parts WARNING Before operating the unit be sure the installation has been carried out correctly by an installer Maintenance...

Страница 23: ...ally does NOT leak If the refrigerant leaks in the room and comes in contact with fire from a burner a heater or a cooker this may result in fire or the formation of a harmful gas Turn OFF any combust...

Страница 24: ...ustible air from fan heaters gas cookers etc is present Always have qualified service personnel confirm that the point of leakage has been repaired or corrected before resuming operation Troubleshooti...

Страница 25: ...ase of accidental refrigerant leaks make sure there are no naked flames The refrigerant itself is entirely safe non toxic and mildly flammable but it will generate toxic gas when it accidentally leaks...

Страница 26: ...endence regarding the selection of cooling and heating operation and each consists of one individual branch set of a BS unit and all indoor units connected downstream INFORMATION The following figure...

Страница 27: ...ide 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 functi...

Страница 28: ...tructions 420 to acknowledge all related safety instructions NOTICE NEVER inspect or service the unit by yourself Ask a qualified service person to perform this work NOTICE Turn ON the power 6 hours b...

Страница 29: ...r interface whose display shows change over under centralised control refer to installation and operation manual of the user interface When the display change over under centralised control flashes re...

Страница 30: ...hat produce open fire ventilate the room constantly Do not place appliances that produce open fire in places exposed to the air flow from the unit or under the unit It takes some time to heat up the r...

Страница 31: ...he unit stops but wait for at least 5 minutes 7 5 Adjusting the air flow direction Refer to the operation manual of the user interface 7 5 1 About the air flow flap Air flow flap types Double flow mul...

Страница 32: ...user interface a b c c c c d d d d b a Outdoor unit b Branch selector BS c VRV DX indoor unit d User interface When the system is installed as shown in the figure above it is necessary to for each sub...

Страница 33: ...ised control 7 7 About control systems This system provides two other control systems beside individual control system one user interface controls one indoor unit Confirm the following if your unit is...

Страница 34: ...ting the unit turn on the main power supply switch 6 hours before operation to ensure smooth running Refer to Maintenance in the indoor unit manual When the display shows time to clean the air filter...

Страница 35: ...this idea the system automatically starts increasing its refrigerant temperature automatically reducing the delivered capacity and increasing the system s efficiency Hi sensible economic cooling heati...

Страница 36: ...ller 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...

Страница 37: ...your installer for more information NOTICE Applicable legislation on fluorinated greenhouse gases requires that the refrigerant charge of the unit is indicated both in weight and CO2 equivalent Formul...

Страница 38: ...ntioned 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...

Страница 39: ...g 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 fil...

Страница 40: ...nction code If the system does NOT operate properly except for the above mentioned cases and none of the above mentioned malfunctions is evident investigate the system in accordance with the following...

Страница 41: ...nd heating do not work 44 10 2 3 Symptom The fan speed does not correspond to the setting 44 10 2 4 Symptom The fan direction does not correspond to the setting 44 10 2 5 Symptom White mist comes out...

Страница 42: ...ub PCB indoor Heat exchanger thermistor malfunction indoor liquid Heat exchanger thermistor malfunction indoor gas Suction air thermistor malfunction indoor Discharge air thermistor malfunction indoor...

Страница 43: ...PCB abnormal Fin temperature abnormal INV PCB abnormal Compressor over current detected Compressor lock startup Transmission outdoor unit inverter INV transmission trouble INV unbalanced power supply...

Страница 44: ...r is getting ready to operate and is performing a communication check with all indoor units Please wait 12 minutes maximally until this process is finished 10 2 3 Symptom The fan speed does not corres...

Страница 45: ...is in operation this noise is heard A pishi pishi squeaking sound is heard when the system stops after heating operation Expansion and contraction of plastic parts caused by temperature change make t...

Страница 46: ...his continues for 1 minute 10 2 15 Symptom The compressor in the outdoor unit does not stop after a short heating operation This is to prevent refrigerant from remaining in the compressor The unit wil...

Страница 47: ...Installer and user reference guide 47 REMA5 REYA8 20A7Y1B VRV 5 heat recovery 4P687640 1 2022 07 11 Relocation Contact your dealer to remove and reinstall the entire unit Moving units requires techni...

Страница 48: ...s required by law to collect transport and discard the refrigerant in accordance with the hydrofluorocarbon collection and destruction regulations NOTICE Do NOT try to dismantle the system yourself di...

Страница 49: ...abel 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 Eco Des...

Страница 50: ...For the installer Installer and user reference guide 50 REMA5 REYA8 20A7Y1B VRV 5 heat recovery 4P687640 1 2022 07 For the installer...

Страница 51: ...the following Fragile handle the unit with care Keep the unit upright in order to avoid compressor damage Lift the unit preferably with a crane and 2 belts of at least 8 m long as shown in the figure...

Страница 52: ...ERATE 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 RE...

Страница 53: ...5 25 4 19 1 8 10 12 22 2 14 16 18 20 28 6 Liquid pipe Front connection ID b ID a Bottom connection ID b ID a 5 9 5 9 5 8 10 12 12 7 14 12 7 16 18 20 High pressure low pressure gas pipe Front connectio...

Страница 54: ...nd user reference guide 54 REMA5 REYA8 20A7Y1B VRV 5 heat recovery 4P687640 1 2022 07 1 Remove the bolt a and washers 2 Remove the transportation stay b as shown in the figure below 1 2 12 3 N m a b a...

Страница 55: ...ns of indoor units 57 15 4 3 Possible combinations of outdoor units 57 15 4 4 Possible options for the outdoor unit 58 15 1 Identification label Outdoor unit Location 14 20 HP 5 12 HP Model identifica...

Страница 56: ...go up to 90 kW and in cooling to 80 kW The outdoor unit is designed to work in heating mode at ambient temperatures from 20 C WB to 15 5 C WB and in cooling mode at ambient temperatures from 5 C DB t...

Страница 57: ...bject to rules combination between outdoor units indoor units and remote controllers etc mentioned in the technical engineering data 15 4 2 Possible combinations of indoor units In general following t...

Страница 58: ...YA12 14 REYA28 REYA12 16 15 4 4 Possible options for the outdoor unit INFORMATION Refer to the technical engineering data for the latest option names Refrigerant branching kit Description Model name R...

Страница 59: ...also 17 1 2 Additional installation site requirements of the outdoor unit in cold climates 475 Demand PCB EKRP1AHTA To enable the power saving consumption control by digital inputs you MUST install t...

Страница 60: ...easure In case the requirements of this manual are followed no additional safety measures are needed A big range of charge and room area combinations is allowed thanks to the countermeasures that are...

Страница 61: ...uirements Piping must be installed according to instructions given in 18 Piping installation 480 Only mechanical joints e g braze flare connections that are compliant with the latest version of ISO149...

Страница 62: ...15 dB louder than the background noise of the room In case of higher background noise in a certain room we recommend to use an external alarm field supply in that room This alarm can be connected to...

Страница 63: ...case of one R32 safety system compatible remote controller it should be the master and in the same room of the indoor unit 4 e e c a b f e c a b In case of two R32 safety system compatible remote con...

Страница 64: ...t 16 4 To determine the charge limit Step 1 Determine the smallest room served per BS unit branch pipe port in order to derive the maximum indoor capacity index that can be connected in total per bran...

Страница 65: ...t an opening to the outside The opening cannot be closed The opening must be 0 006 m 50 of Anvmin The bottom of the upper opening must be 1500 mm above the floor The height of the opening is 20 mm Not...

Страница 66: ...st case indoor unit volume and 40 m piping between indoor and BS unit In VRV Xpress it is possible to add custom piping lengths and indoor units which can lead to lower minimum room area requirements...

Страница 67: ...33 7 110 37 1 120 40 5 130 43 9 140 47 2 m Total refrigerant charge limit in the system Amin Smallest room area a Lowest underground floor Lowest underground floor Step 4 Use the values on the unit na...

Страница 68: ...ways be lower than 15 96 kg the number of indoor units connected downstream of BS units with a maximum of 63 8 kg Example 1 VRV system serving three rooms via one BS unit Room 1 20 m is served by one...

Страница 69: ...table under Step 2 the smallest room determines the maximum sum of capacity classes For port A this is room 1 100 32 20 40 92 OK Port C serves only room 3 use the table under Step 2 to find the maxim...

Страница 70: ...above text Determine smallest room area served by same branch pipe port See step 1 in above text Change installation for this port 1 Increase area of smallest room OR 2 Reduce connected indoor capacit...

Страница 71: ...ee step 3 in above text Determine smallest room area of the lowest underground floor Change installation for this port 1 Increase area of smallest underground room OR 2 Decrease piping length by chang...

Страница 72: ...t space to transport the unit in and out of the site Do NOT install the unit in places often used as work place In case of construction works e g grinding works where a lot of dust is created the unit...

Страница 73: ...r instructions NOTICE The equipment described in this manual may cause electronic noise generated from radio frequency energy The equipment complies to specifications that are designed to provide reas...

Страница 74: ...here 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...

Страница 75: ...r 17 1 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...

Страница 76: ...equipment In heating T AO C WB a b 20 15 5 15 10 5 0 5 10 15 20 10 15 20 2527 30 TAI C DB a Warming up operation range b Operation range TAI Ambient indoor temperature TAO Ambient outdoor temperature...

Страница 77: ...PCB need to be accessed To access these pushbuttons the electrical component box cover does not need to be opened See 21 1 3 To access the field setting components 4129 17 2 3 To open the electrical c...

Страница 78: ...se NOTICE When the installation height of the unit needs to be increased do NOT use stands to only support the corners Stands under the unit must be at least 100 mm wide 100 mm 100 mm NOT allowed Allo...

Страница 79: ...from around the unit During heating operation and when the outdoor temperatures are negative the drained water from the outdoor unit will freeze up If the water drainage is not taken care of the area...

Страница 80: ...ts Knockout holes 92 18 2 4 To route the refrigerant piping 92 18 2 5 To connect the refrigerant piping to the outdoor unit 93 18 2 6 To connect the multi connection piping kit 94 18 2 7 To connect th...

Страница 81: ...e plate larger piping thickness might be required 18 1 3 Refrigerant piping insulation Use polyethylene foam as insulation material with a heat transfer rate between 0 041 and 0 052 W mK 0 035 and 0 0...

Страница 82: ...unit total capacity type connected downstream Do not let the connection piping exceed the refrigerant piping size chosen by the general system model name Example Downstream capacity for C capacity in...

Страница 83: ...upon field piping rules determined by the installation needs See technical data and installer user reference guide for more details about the required pipe size up for your installation 18 1 5 To sel...

Страница 84: ...7A for an outdoor multi connection piping kit for 2 outdoor units 18 1 6 Installation limitations The illustration and table below show the installation limitations g a f e b c g g d g g g g g g a b S...

Страница 85: ...16 Maximum number of indoor units connected to BS units in refrigerant flow through c 64 18 1 7 About the piping length Make sure the piping installation does not exceed the maximum allowable pipe len...

Страница 86: ...m of a 20 m b 10 m equivalent length of branch pipe 6 7 m and the equivalent length of BS1 depending on the total downstream Capacity Index as indicated in the table above CI 400 1 6 m 20 10 6 7 1 6 3...

Страница 87: ...more information The outdoor unit is positioned lower than the indoor units Size up the liquid piping refer to 18 1 4 To select the piping size 481 for more information Activate the outdoor unit sett...

Страница 88: ...d to size up the liquid piping between the first branch kit or BS unit and the last branch kit or last BS unit It is also required to size up the liquid piping downstream of the BS unit if the last re...

Страница 89: ...required to size up the liquid piping downstream of the BS unit if the last refrigerant branch kit is located downstream of the BS unit It is not required to size up the liquid piping between the BS...

Страница 90: ...lects to the outmost outdoor unit when the system stops NOT allowed oil remains in piping Allowed If the piping length between the outdoor units exceeds 2 m create a rise of 200 mm or more in the suct...

Страница 91: ...make 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 con...

Страница 92: ...sing copper tubes through walls Unit Installation period Protection method Outdoor unit 1 month Pinch the pipe 1 month Pinch or tape the pipe Indoor unit Regardless of the period NOTICE Do NOT open th...

Страница 93: ...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 pa...

Страница 94: ...lti 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...

Страница 95: ...he piping Unit Installation period Protection method Outdoor unit 1 month Pinch the pipe 1 month Pinch or tape the pipe Indoor unit Regardless of the period Seal the piping and wiring intake holes usi...

Страница 96: ...e Pressure reducing valve f Nitrogen Do NOT use anti oxidants when brazing pipe joints Residue can clog pipes and break equipment Do NOT use flux when brazing copper to copper refrigerant piping Use...

Страница 97: ...tighten until the correct tightening torque value is achieved see Tightening torques 498 NOTICE Stop valves need to be opened on torque specified in this manual It is not allowed to turn valve a quar...

Страница 98: ...n property damage or personal injury which may be serious depending on the circumstances Use the following procedure to remove the pinched piping 1 Make sure that the stop valves are fully closed 2 Co...

Страница 99: ...finished The indoor units BS units outdoor unit are already powered ON Use procedure Method 2 After power ON Finish piping work Use procedure Method 1 Before power ON regular method Yes No No Yes It i...

Страница 100: ...erant piping for example water may have entered the piping first carry out the vacuum drying procedure below until all moisture has been removed All piping inside the unit has been factory tested for...

Страница 101: ...top valve Close High pressure low pressure gas line stop valve Close NOTICE The connections to the indoor units and all indoor units should also be leak and vacuum tested Keep any possible field suppl...

Страница 102: ...valves to the indoor units open as well Leak test and vacuum drying should be done before the power supply is set to the unit If not see 18 3 1 About checking the refrigerant piping 4 99 for more inf...

Страница 103: ...he insulation on the refrigerant piping according to the installation environment Ambient temperature Humidity Minimum thickness 30 C 75 to 80 RH 15 mm 30 C 80 RH 20 mm Between outdoor and indoor unit...

Страница 104: ...protect it against sharp edges 8 If the outdoor unit is installed above the indoor unit cover the stop valves with sealing material to prevent condensed water on the stop valves from moving to the ind...

Страница 105: ...paration WARNING Only use R32 as refrigerant Other substances may cause explosions and accidents R32 contains fluorinated greenhouse gases Its global warming potential GWP value is 675 Do NOT vent the...

Страница 106: ...ossible to minimise the amount of refrigerant contained in them Cylinders shall be kept in an appropriate position according to the instructions Ensure that the refrigerating system is earthed prior t...

Страница 107: ...ximum indoor capacity index which can be connected to a BS unit port is determined based on the smallest room served by that port In case the system serves the lowest underground floor of a building t...

Страница 108: ...ndividual outdoor unit charge factors When using more than one multi BS unit add the sum of the individual BS unit charge factors Parameter A If the total indoor unit capacity connection ratio CR 100...

Страница 109: ...nits 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 Indoo...

Страница 110: ...to test run Q R Q R Q R p p A B R32 d Step 4a Close valve B Step 5 Connect valve A to the refrigerant charge port d Open all outdoor unit stop valves Step 6 Activate field setting 2 20 1 Unit will st...

Страница 111: ...d a Weighing scales b Refrigerant R32 tank siphon system c Vacuum pump d Liquid line stop valve B Valve B 4 Do one of the following If Then a The determined additional refrigerant amount is not reache...

Страница 112: ...tings 4135 Result The unit will start operation 7 Open valve A and charge refrigerant until the remaining determined additional refrigerant amount is added and then close valve A 8 Close valve A and p...

Страница 113: ...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 refrigeran...

Страница 114: ...as a sensitivity of 5 grams refrigerant per year or better at a pressure of at least 0 25 times the maximum working pressure see PS High on the unit name plate In case a leak is detected recover the r...

Страница 115: ...124 20 7 To connect the external outputs 126 20 8 To check the insulation resistance of the compressor 127 20 1 About connecting the electrical wiring Typical workflow Connecting the electrical wirin...

Страница 116: ...em They can cause overheating electrical shock or fire Do NOT install a phase advancing capacitor because this unit is equipped with an inverter A phase advancing capacitor will reduce performance and...

Страница 117: ...not touch internal piping except the inverter PCB cooling pipe in order to avoid wire damage due to high temperature piping Firmly close the lid and arrange the electrical wires so as to prevent the...

Страница 118: ...sion wiring NOTICE Sheathed and shielded cables are required for transmission wiring between outdoor unit and BS unit For the above wiring always use vinyl cords with 0 75 to 1 25 mm2 sheath or cables...

Страница 119: ...ng the limits for voltage changes voltage fluctuations and flicker in public low voltage supply systems for equipment with rated current 75 A It is the responsibility of the installer or user of the e...

Страница 120: ...ments 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...

Страница 121: ...above multiply the result by 1 1 and select the next higher recommended fuse capacity Example Combining the REYA24 by using the REYA10 and REYA14 Minimum circuit ampacity of the REYA10 22 0 A Minimum...

Страница 122: ...ll animals or dirt from entering X1A b 5 12 HP 14 20 HP e a e c d d d d d d a b e a Wiring between the units indoor outdoor F1 F2 left b Internal transmission wiring Q1 Q2 c Plastic bracket d Tie wrap...

Страница 123: ...it B slave outdoor unit b1 BS unit 1 b2 BS unit 2 c Indoor unit d Outdoor unit other system transmission F1 F2 The interconnecting wiring between the outdoor units in the same piping system must be co...

Страница 124: ...of other units connected to the same earth The power supply wiring can be routed from the front and left side Fix it to the lower mounting hole c X1M a b a c d X1M b 5 12 HP 14 20 HP A A A d d d d a P...

Страница 125: ...the earth wire align the wire with the cut out section of the cup washer Incomplete earthing may cause electrical shock The power supply MUST be clamped to the bracket using field supplied clamp mate...

Страница 126: ...loses in case of occurrence of general errors See 10 1 Error codes Overview 441 and 25 3 1 Error codes Overview 4161 for errors that will trigger this output NOTICE The outputs have a limited capacity...

Страница 127: ...ck the insulation resistance of the compressor NOTICE If after installation refrigerant accumulates in the compressor the insulation resistance over the poles can drop but if it is at least 1 M then t...

Страница 128: ...Automatic mode during cooling 145 21 2 4 Example Automatic mode during heating 146 21 3 Using the leak detection function 147 21 3 1 About automatic leak detection 147 21 3 2 To manually perform a le...

Страница 129: ...peration before normal operation can restart It will be indicated in below explanations See also 21 1 4 To access mode 1 or 2 4130 21 1 5 To use mode 1 4131 21 1 6 To use mode 2 4132 21 1 7 Mode 1 mon...

Страница 130: ...ide 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 21 1 4 To access mode...

Страница 131: ...he 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 see 21 1 4 To access mode 1 or 2...

Страница 132: ...value is done by pushing BS3 one 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 five secon...

Страница 133: ...ster 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 1 1 Shows the status of low no...

Страница 134: ...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 communi...

Страница 135: ...automatic leak detection will be performed Depending on the chosen field setting the automatic leak detection function can be programmed one time into the future or on perpetual basis Indication is gi...

Страница 136: ...n conditions 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 De...

Страница 137: ...ant charge activated To stop the manual additional refrigerant charge operation when the required additional refrigerant amount is charged push BS3 If this function was not aborted by pushing BS3 the...

Страница 138: ...tion 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 noi...

Страница 139: ...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 lev...

Страница 140: ...mbinations 488 2 47 Te target temperature during heat recovery operation 2 47 Te target C 0 default Auto 2 6 3 7 4 8 5 9 6 10 7 11 2 49 Height difference setting 2 49 Description 0 default 1 In case t...

Страница 141: ...sor remote controller connected to system 2 65 Automatic leak detection interval time This setting is used in conjunction with setting 2 88 2 65 Time between automatic leak detection executions days 0...

Страница 142: ...onality Depending on the priority emphasises can be put on energy saving or comfort level Several parameters can be selected resulting in the optimal balance between energy consumption and comfort for...

Страница 143: ...conomic 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...

Страница 144: ...ion 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 operat...

Страница 145: ...erful 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 wi...

Страница 146: ...re 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...

Страница 147: ...value the interval time or the time until the next automatic leak detection operation can be chosen The parameter 2 88 defines whether the leak detection operation is executed one time within 2 65 day...

Страница 148: ...Leak detected 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 te...

Страница 149: ...9 22 3 Checklist before commissioning 150 22 4 Checklist during commissioning 151 22 5 About the test run 152 22 6 To perform a test run 152 22 7 Correcting after abnormal completion of the test run 1...

Страница 150: ...r running to the crankcase heater and to protect the compressor During test operation the outdoor unit and the indoor units will start up Make sure that the preparations of all indoor units are finish...

Страница 151: ...is a refrigerant leak try to repair the leak If the repair is unsuccessful call your local dealer Do not touch any refrigerant which has leaked out from refrigerant piping connections This may result...

Страница 152: ...compressor starts During the test operation the refrigerant running sound or the magnetic sound of a solenoid valve may become loud and the display indication may change These are not malfunctions 22...

Страница 153: ...fter 5 minutes 22 7 Correcting after abnormal completion of the test run The test operation is only completed if there is no malfunction code displayed on the user interface or outdoor unit 7 segment...

Страница 154: ...possible to stop the unit operation from a user interface To abort the operation press BS3 The unit will stop after 30 seconds During the check if the following codes are on 7 segment display the che...

Страница 155: ...022 07 22 9 Operating the unit Once the unit is installed and test operation of outdoor unit and indoor units is finished the operation of the system can start For operating the indoor unit the user i...

Страница 156: ...operly 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 the complete...

Страница 157: ...e 158 24 3 2 To recover refrigerant 159 24 1 Maintenance safety precautions DANGER RISK OF ELECTROCUTION DANGER RISK OF BURNING SCALDING WARNING Prior to start working on systems containing flammable...

Страница 158: ...n off the main switch and to remove the fuses from the control circuit located in the outdoor unit 24 2 Checklist for yearly maintenance of the outdoor unit Check the following at least once a year He...

Страница 159: ...ant leakage 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 sy...

Страница 160: ...LECTROCUTION DANGER RISK OF BURNING SCALDING 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...

Страница 161: ...ew In case other error codes appear contact your dealer Main code Sub code Cause Solution SVEO a SVS b Master Slave 1 The R32 sensor in one of the indoor units has detected a refrigerant leak c Possib...

Страница 162: ...f the BS units One of the sensors is at the end of lifetime for CH 22 almost and must be replaced Refer to the service manual for more information R32 sensor end of lifetime in one of the BS units Ear...

Страница 163: ...s Y4E main PCB X25A Check connection on PCB or actuator Electronic expansion valve malfunction subcool heat exchanger Y2E main PCB X26A Check connection on PCB or actuator Electronic expansion valve m...

Страница 164: ...n PCB or actuator Heat exchanger deicer temperature sensor R11T main PCB X35A Check connection on PCB or actuator Upper heat exchanger gas temperature sensor R8T main PCB X29A Check connection on PCB...

Страница 165: ...X31A Check connection on PCB or actuator Transmission outdoor unit inverter INV1 transmission trouble main PCB X20A X28A X40A Check connection Transmission outdoor unit inverter FAN1 transmission tro...

Страница 166: ...ning because there is an error on another unit indoor BS unit Check if other indoor units BS units have malfunction and confirm indoor unit mix is allowed Connection malfunction over indoor units or t...

Страница 167: ...are satisfied Too low pressure was noticed during leak detection operation Restart leak detection operation Indicates an indoor unit which is not compatible with leak detection functionality is instal...

Страница 168: ...ipped of the BS unit to evacuate the leaking refrigerant After the operation the system will go in locked state and the remote controllers will display an error Service is needed to repair the leak an...

Страница 169: ...ak is detected For exact model name see option list of the indoor unit For more information about this option refer to the installation manual of the optional output PCB Note iTM and WAGO module can a...

Страница 170: ...y 4P687640 1 2022 07 26 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 U...

Страница 171: ...iagram Outdoor unit 173 27 3 Wiring diagram Outdoor unit 176 27 1 Service space Outdoor unit Make sure the space around the unit is adequate for servicing and the minimum space for air inlet and air o...

Страница 172: ...les 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 si...

Страница 173: ...agram Outdoor unit Piping diagram 5 12 HP a b d 3D138283 e c Y2E R16T Y1E R5T Y5S R8T R10T R12T R15T Y10S Y2S R7T Y4E R6T Y3E R11T R4T Y5E M1F R3T S1NPL Y3S R21T Y11S M1 S1NPH S1PH Y4S Y8S PHE R13T R9...

Страница 174: ...2 07 Piping diagram 14 20 HP a b d e c Y2E Y1E R5T Y5S R8T R10T R12T R15T Y10S Y2S R7T Y4E R6T Y3E R11T R4T Y5E M1F R3T S1NPL Y3S R21T Y11S S1NPH S1PH Y4S R13T R9T M2F Y7E R1T DT 3D138283 HPS M sv sv...

Страница 175: ...e Filter Check valve Pressure relief valve Thermistor Solenoid valve Heat sink PCB Capillary tube Expansion valve 4 way valve Propeller fan High pressure switch PL low pressure sensor PH high pressure...

Страница 176: ...DS1 DS2 switches 3 Do NOT operate the unit by short circuiting protection device S1PH 4 Refer to the installation manual for connection wiring to indoor outdoor transmission F1 F2 and outdoor multi t...

Страница 177: ...F1U A6P 14 20 HP only Fuse T 3 15 A 250 V F1U F2U Fuse T 1 A 250 V F3U Field fuse F101U A4P Fuse HAP A P Pilot lamp service monitor is green K R A P Relay on PCB L1R Reactor M1C Motor compressor M1F M...

Страница 178: ...exchanger upper Y2E Electronic expansion valve subcool heat exchanger Y3E Electronic expansion valve heat exchanger lower Y4E Electronic expansion valve receiver gas Y5E Electronic expansion valve in...

Страница 179: ...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 instructi...

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