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Special requirements for R32 units

Installer and user reference guide

54

BS4~12A14AJV1B

VRV 5 branch selector unit

4P695527-1 – 2022.02

Example

a

b

b

e

f

d

c

a

Outdoor unit

b

BS unit with ventilated enclosure safety measure

c

BS unit without safety measures

d

BS unit with external alarm safety measure

e

Extraction fan

f

External alarm
Transmission wiring

Field settings

BS units (b) with ventilated enclosure safety measure

Code

Description

Value

[2-0]

Cluster indication

1: enable

[2-1]

Cluster number

1

[2-2]

Cluster configuration

0 (default): parallel

[2-4]

Safety measures

1 (default): enable

[2-7]

Ventilated enclosure

1 (default): enable

BS units (c) without safety measures

Code

Description

Value

[2-0]

Cluster indication

0 (default): disable

[2-4]

Safety measures

0: disable

BS units (d) with external alarm safety measure

Code

Description

Value

[2-0]

Cluster indication

0 (default): disable

[2-4]

Safety measures

1 (default): enable

[2-7]

Ventilated enclosure

0: disable

Note: 

 Some field settings need to be made on all main PCBs (A1P, A2P and A3P) of

the same BS unit. For more information, see 

"17.1 Making field settings"

 [

4

 91].

Summary of Contents for VRV 5 BS4A14AJV1B

Page 1: ...Installer and user reference guide VRV 5 branch selector unit BS4A14AJV1B BS6A14AJV1B BS8A14AJV1B BS10A14AJV1B BS12A14AJV1B...

Page 2: ...you must read before installing Format Paper in the box of the BS unit BS unit installation and operation manual Installation and operation instructions Format Paper in the box of the BS unit Install...

Page 3: ...n 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 Symbol Ex...

Page 4: ...shock short circuit leaks fire or other damage to the equipment ONLY use accessories optional equipment and spare parts made or approved by Daikin WARNING Make sure installation testing and applied m...

Page 5: ...ing places In potentially explosive atmospheres In places where there is machinery that emits electromagnetic waves Electromagnetic waves may disturb the control system and cause malfunction of the eq...

Page 6: ...han the specified amount of refrigerant When the refrigerant system is to be opened refrigerant MUST be treated according to the applicable legislation NOTICE Make sure refrigerant piping installation...

Page 7: ...rical DANGER RISK OF ELECTROCUTION Turn OFF all power supply before removing the switch box cover connecting electrical wiring or touching electrical parts Disconnect the power supply for more than 10...

Page 8: ...WARNING After finishing the electrical work confirm that each electrical component and terminal inside the electrical components box is connected securely Make sure all covers are closed before starti...

Page 9: ...he radio waves a distance of 1 meter may NOT be sufficient NOTICE ONLY applicable if the power supply is three phase and the compressor has an ON OFF starting method If there exists the possibility of...

Page 10: ...open flames an operating gas appliance or an operating electric heater in the duct work WARNING The appliance shall be stored in a room without continuously operating ignition sources example open fla...

Page 11: ...to refrigerant leakage Possible consequence asphyxiation suffocation and fire NEVER bend the branch and header pipes sticking out of the unit They have to remain straight ALWAYS support the branch and...

Page 12: ...e power supply has a missing or wrong N phase equipment might break down Establish proper earthing Do NOT earth the unit to a utility pipe surge absorber or telephone earth Incomplete earthing may cau...

Page 13: ...external switching device such as a timer or connected to a circuit that is regularly turned ON and OFF by the utility WARNING When carrying out an inspection on the switch box of the unit ALWAYS make...

Page 14: ...or or detection of refrigerant leaks NOTICE Take precautions to avoid excessive vibration or pulsation to refrigeration piping Protect the protection devices piping and fittings as much as possible ag...

Page 15: ...For the user Installer and user reference guide 15 BS4 12A14AJV1B VRV 5 branch selector unit 4P695527 1 2022 02 For the user...

Page 16: ...ears 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 i...

Page 17: ...ol this chemical symbol means that the battery contains a heavy metal above a certain concentration Possible chemical symbols are Pb lead 0 004 Waste batteries MUST be treated at a specialised treatme...

Page 18: ...nce and service see 7 Maintenance and service 423 WARNING The unit is equipped with a refrigerant leak detection system for safety To be effective the unit MUST be electrically powered at all times af...

Page 19: ...her than those recommended by the manufacturer Be aware that the refrigerant inside the system is odourless WARNING The refrigerant inside the unit is mildly flammable but normally does NOT leak If th...

Page 20: ...ting 425 WARNING Stop operation and shut OFF the power if anything unusual occurs burning smells etc Leaving the unit running under such circumstances may cause breakage electrical shock or fire Conta...

Page 21: ...the unit MUST be electrically powered at all times after installation except for short service periods NOTICE Do NOT use the system for other purposes In order to avoid any quality deterioration do N...

Page 22: ...qualified service person to perform this work NOTICE Turn ON the power 6 hours before operation in order to have power running to the crankcase heater and to protect the compressor This operation man...

Page 23: ...or service agent We recommend performing maintenance at least once a year However applicable legislation might require shorter maintenance intervals Following symbols may occur on the indoor unit Sym...

Page 24: ...ubstances e g organic solvents hair spray paint in high concentrations in the close proximity of the BS unit because this may cause misdetection by the R32 refrigerant leakage sensor NOTICE Functional...

Page 25: ...te at all Check if there is no power failure Wait until power is restored If power failure occurs during operation the system automatically restarts immediately after power is restored Check if no fus...

Page 26: ...starts working and makes the noise Its volume will reduce in about a minute A continuous low hissing sound is heard when the system is in cooling or defrost operation This is the sound of refrigerant...

Page 27: ...Installer and user reference guide 27 BS4 12A14AJV1B VRV 5 branch selector unit 4P695527 1 2022 02 9 Relocation Contact your dealer to remove and reinstall the entire unit Moving units requires techni...

Page 28: ...is 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 d...

Page 29: ...For the installer Installer and user reference guide 29 BS4 12A14AJV1B VRV 5 branch selector unit 4P695527 1 2022 02 For the installer...

Page 30: ...bring the unit to its final installation position In this chapter 11 1 To handle the unit 30 11 2 To unpack the unit 32 11 3 To remove the accessories 36 11 1 To handle the unit For easier manual car...

Page 31: ...in the cardboard For the BS10 12A units it is advised to lift with more than 2 people When moving the unit carry it slowly After unpacking lift the unit via the hanger brackets Do not exert any press...

Page 32: ...ox Installer and user reference guide 32 BS4 12A14AJV1B VRV 5 branch selector unit 4P695527 1 2022 02 11 2 To unpack the unit For BS4A 1 Cut and remove the straps 2 Remove the box parts as indicated i...

Page 33: ...11 About the box Installer and user reference guide 33 BS4 12A14AJV1B VRV 5 branch selector unit 4P695527 1 2022 02 For BS6 12A 3 Cut and remove the inner straps...

Page 34: ...he box Installer and user reference guide 34 BS4 12A14AJV1B VRV 5 branch selector unit 4P695527 1 2022 02 4 Remove the pallet 5 Cut and remove the outer straps 6 Remove the box parts as indicated in t...

Page 35: ...11 About the box Installer and user reference guide 35 BS4 12A14AJV1B VRV 5 branch selector unit 4P695527 1 2022 02...

Page 36: ...h Insulation tube for stopper pipe 9 5 mm 3 for BS4A 1 for BS6 12A i Insulation tube for stopper pipe 15 9 mm 4 for BS4A 2 for BS6 12A j Insulation tube for stopper pipe 22 2 mm k Tie wraps 8 for BS4...

Page 37: ...cation NOTICE When installing or servicing several units at the same time make sure NOT to switch the service panels between different models 12 1 1 Identification label BS unit Location 12 2 About th...

Page 38: ...ation about an option see the installation and operation manual of the option Duct connection kit EKBSDCK This kit is required when you install ducting on the air inlet side See the examples in 14 2 P...

Page 39: ...4P695527 1 2022 02 c c c a e d b c c c b b b c c c BS4 12A X1M X15A X3M X3 4M X3 4 5M X2M BS10 12A BS6 12A BS4 12A f g a Power supply for the BS unit b Transmission wiring c Cable tie d Power supply...

Page 40: ...S unit are explained in more detail below If they are followed no additional safety measures for the BS unit are required Carefully follow the installation requirements for the BS unit as explained in...

Page 41: ...he occupied space make sure that the piping is protected against accidental damage Piping should be checked according to procedure as mentioned in the installation and operation manual delivered with...

Page 42: ...n At least 50 of Anvmin is less than 200 mm above the floor The bottom of the lower opening is 100 mm from the floor The height of the opening is 20 mm For the upper opening It is not an opening to th...

Page 43: ...c External alarm d m kg Amin m All other floors a All other floors a Lowest under ground floor b No safety measure c No safety measure c External alarm d 5 16 15 16 35 207 104 207 6 23 18 23 36 213 10...

Page 44: ...FLOORS LOWEST UNDERGROUND FLOOR The graphs and table are based on an installation height of the BS unit between 1 8 m and 2 2 m The installation height is the height of the bottom of the BS unit to th...

Page 45: ...When the room area is sufficiently large no safety measures are required This also includes a BS unit installed in the lowest underground floor The duct connection must be replaced with the duct closi...

Page 46: ...refrigerant leak is detected in any BS unit of the system Note An address number for the supervisor remote controller must be assigned to the BS unit See 17 1 Making field settings 491 When the R32 s...

Page 47: ...l a non return valve grill filter or other component in the evacuation duct Extraction fan The extraction fan must have a CE marking and cannot act as an ignition source during normal operation Exampl...

Page 48: ...esigning the evacuation channel in order to account for tolerances on parts dirt and dust building up in the evacuation channel over time etc Note The internal pressure of the BS unit should not be mo...

Page 49: ...250 300 50 P OUT Pa AFR OUT m h 47 5 115 Use the curves with instructions how to read them of the manufacturer of the components to find the pressure drop generated by all components in the ductwork A...

Page 50: ...ng field settings 491 Multiple BS units in parallel 1 extraction fan In this configuration multiple parallel BS units are connected to a single extraction fan Each BS unit benefits from a direct airfl...

Page 51: ...0 default parallel 2 4 Safety measures 1 default enable 2 7 Ventilated enclosure 1 default enable a Assign a unique cluster number to each cluster in the system All BS units in the same cluster MUST...

Page 52: ...efore BS unit operation it is required to perform a test run that simulates a refrigerant leak See 18 3 BS unit test run 4101 for more details Field settings Multiple BS units in series 1 extraction f...

Page 53: ...nfiguration 0 default parallel 1 series 2 4 Safety measures 1 default enable 2 7 Ventilated enclosure 1 default enable Note Some field settings need to be made on all main PCBs A1P A2P and A3P of the...

Page 54: ...alue 2 0 Cluster indication 1 enable 2 1 Cluster number 1 2 2 Cluster configuration 0 default parallel 2 4 Safety measures 1 default enable 2 7 Ventilated enclosure 1 default enable BS units c without...

Page 55: ...ation location with sufficient space to transport the unit in and out of the site Avoid installation in an environment with a lot of organic solvents such as ink and siloxane Do NOT install the unit i...

Page 56: ...MATION Equipment meets the requirement for commercial and light industrial location when professionally installed and maintained INFORMATION The sound pressure level is less than 70 dBA INFORMATION Al...

Page 57: ...h between the BS unit and the indoor unit 5 m c a b b a a BS unit b Indoor unit c Sound insulation field supply Drainage Make sure condensation water can be evacuated properly Drain pipe length Keep d...

Page 58: ...oming from or going to another BS unit drain piping and ducting d Minimum connection space for the refrigerant piping to the indoor units e False ceiling f False ceiling opening g Floor surface Ceilin...

Page 59: ...00 mm BS6 8A 1600 mm BS10 12A 14 2 Possible configurations Refrigerant piping A B b a a a 1 2 1 2 b a a a C b b A Refrigerant piping connected to left side only B Refrigerant piping connected to right...

Page 60: ...ducting on the air outlet side B Reversed flow Ducting on both sides C No extraction ventilation installed 1 To extraction fan or another BS unit 2 From another BS unit a Duct field supply b EKBSDCK o...

Page 61: ...tended when the service cover is removed 14 3 2 To close the unit 2 1 3 SW8 3 2 N m 14 4 Mounting the unit 14 4 1 To mount the unit INFORMATION Optional equipment When installing optional equipment al...

Page 62: ...the suspension bolts in between the 2 washers a b b d c a Nut field supply b Washer field supply c Hanger bracket d Double nut field supply a b c e d a Ceiling slab b Anchor bolt c Long nut or turnbuc...

Page 63: ...drain hose might cause leaks and damage the installation space and surroundings 1 Push the drain hose as far as possible over the drain pipe connection 1 a b a Drain pipe connection attached to the u...

Page 64: ...eaks Close the inspection hole 5 Wind the large self adhesive sealing pad accessory around the metal clamp and drain hose Note Start on the screw part of the metal clamp work your way around the clamp...

Page 65: ...or metal plate of the wooden structure separate the duct and wall electrically 1 Connect the air outlet Position a 160 mm duct of at least 1 m over the unit duct connection Fix the duct to the duct c...

Page 66: ...y e Insulation field supply f Sealing material accessory g Screw field supply 4 Protect the ducting against reverse airflow from wind 5 Prevent that animals debris and dust can enter the ducting 6 If...

Page 67: ...h box 1 Open the BS unit See 14 3 1 To open the unit 461 2 Remove the 4 screws 3 Store the screws in a safe place 4 Loosen the M8 bolts 2 turns without removing them 5 Lift the switch box pull it forw...

Page 68: ...earth wire Store the screw in a safe place Cut the cable ties that fix the damper wire to the pipe and the one that bundles the damper wire a b b b a Damper wire b Cable ties 3 Remove the damper Remov...

Page 69: ...H2 SW8 3 2 N m a Screw b Damper c Damper wire To remove the duct connection 1 Remove the 4 screws 2 Store the screws in a safe place 3 Pull the duct connection from the unit 4 PH2 SW8 To install the d...

Page 70: ...Pull the wires through until the foam insulation fits properly in the small hole in the unit s metal plate This makes the connection airtight Attach the damper with 4 screws 4 PH2 SW8 3 2 N m a b b b...

Page 71: ...over the screws and slide it in place Make sure the backside is aligned properly with the insulation of the switch box in order to make it airtight Tighten the 2 screws PH2 SW8 1 2 3 2 N m 2 2 4 Atta...

Page 72: ...ix damper wire to piping field supply c Tie wrap to bundle the damper wire field supply d Leftmost wire fixing plate To re install the switch box 1 Lift the switch box slide it backwards and lower it...

Page 73: ...t piping 75 15 3 1 To connect the refrigerant piping 75 15 3 2 To braze the pipe end 76 15 3 3 Joining branch pipe ports 77 15 4 To insulate the refrigerant piping 78 15 1 Installation limitations The...

Page 74: ...dex of indoor units connected to BS units in refrigerant flow through c 750 Maximum number of ports of BS units in refrigerant flow through c 16 Maximum number of indoor units connected to BS units in...

Page 75: ...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 temperature Humidity Mini...

Page 76: ...zing Prerequisite Remove the yellow paper from around the header pipes to avoid fire during brazing 1 Connect the header pipes to the appropriate field supply pipes The type of pipe is indicated on th...

Page 77: ...ti oxidants when brazing pipe joints Residue can clog pipes and break equipment Do NOT use flux when brazing copper to copper refrigerant piping Use phosphor copper brazing filler alloy BCuP which doe...

Page 78: ...it f Adherence surface To insulate the header and branch pipes standard insulation The header pipes and branch pipes MUST be insulated field supply Make sure that the insulation is properly mounted ov...

Page 79: ...event air gaps in the seam between the insulation tubes e d d a b c f a Insulation tube extra thick field supply b Tape field supply c Insulation tube BS unit d Adherence surface e BS unit f Insulatio...

Page 80: ...of the following stages 1 Making sure the power supply system complies with the electrical specifications of the units 2 Connecting the electrical wiring to the outdoor unit 3 Connecting the electrica...

Page 81: ...ce redundant cable length into the unit INFORMATION Also read the precautions and requirements in the general safety precautions chapter in the installer and user reference guide 16 1 2 Specifications...

Page 82: ...heath or cables 2 core wires Maximum wiring length between BS unit and indoor units 1000 m Maximum wiring length between BS unit and outdoor unit 1000 m Maximum wiring length between BS units 1000 m T...

Page 83: ...a a Stranded conductor wire b Round crimp style terminal Use the following methods for installing wires Wire type Installation method Single core wire c b c a a A AA A a Curled single core wire b Scre...

Page 84: ...multiple BS units in the system that are connected to the same transmission wiring branch line connect the terminals F1 F2 BS unit on terminal block X2M of the first BS unit to the terminals F1 F2 Ou...

Page 85: ...ch pipe B of BS unit 1 C Indoor unit C connected to joint branch pipes C and D of BS unit 1 The F1 F2 terminals of the indoor unit only have to be connected to 1 of the 2 F1 F2 terminals inside BS uni...

Page 86: ...t lower than the fixation point MAX Leave sufficient spare cable 20 cm additionally for all cables between the fixation point inside the switch box and the fixation point on the side of the BS unit Th...

Page 87: ...DIP switches To set the DIP switches for branch pipe ports to which NO indoor unit is connected Setting for branch pipe ports to which NO indoor unit is connected a DS1 A1P DS1 A2P DS1 A3P 1 2 3 4 1 2...

Page 88: ...and D but NOT connecting an indoor unit to branch pipe port C ON DS1 A1P OFF 1 2 3 4 ON DS2 A1P OFF 1 2 3 4 2 When joining branch pipe ports A and B Connecting an indoor unit to the joined branch pip...

Page 89: ...e BS unit The SVS output must be used when an external alarm is required see 13 3 To determine the required safety measures 441 FAN 1 2 b SVS 1 2 X6M a a SVS output terminals 1 and 2 b Cable to extern...

Page 90: ...on Installer and user reference guide 90 BS4 12A14AJV1B VRV 5 branch selector unit 4P695527 1 2022 02 c b c a BS4 12A X1M X6M a Power supply cable field supply b Output cable FAN cable shown field sup...

Page 91: ...mponents Push buttons to give input to the PCB A display to read feedback from the PCB DIP switches Mode 1 and 2 Mode Description Mode 1 monitoring settings Mode 1 can be used to monitor the current s...

Page 92: ...defined as Mode Setting Value Example Description Default situation Mode 1 Mode 2 Setting 8 in mode 2 Value 4 in mode 2 17 1 4 To access mode 1 or 2 Initialisation default situation NOTICE Turn ON the...

Page 93: ...ess push BS1 to return to the default situation no indication on 7 segment displays blank see 17 1 4 To access mode 1 or 2 492 17 1 5 To use mode 1 Mode 1 is used to set basic settings and to monitor...

Page 94: ...lue To quit and return to the initial status Push BS1 Changing the value of the selected setting in mode 2 Push BS1 for more than 5 seconds to select mode 2 Push BS2 to select the required setting Pus...

Page 95: ...ter the end of the sensor lifetime For more information see the reference guide of the user interface and contact your dealer 17 1 8 Mode 2 field settings 2 0 Setting to define if the BS unit belongs...

Page 96: ...if safety measures are required ventilated enclosure or external alarm Choose value 0 if no safety measures are required See 13 3 To determine the required safety measures 441 In case of 0 the output...

Page 97: ...e controller In case supervisor remote controllers are used in the system it is necessary to assign an address value to the BS unit Assign a different address to different BS units Use address values...

Page 98: ...9 is mandatory for all BS units and has to be made on all main PCBs A1P A2P and A3P of the BS unit 2 9 Description 0 default 15 Address for error handling Example d a A3P A2P A1P e e e A2P A1P e e b c...

Page 99: ...itional measure During the BS unit test run which is started by setting 2 3 to 1 the external fan and external alarm are both active To disable the external alarm during the airflow rate measurements...

Page 100: ...2 About airflow requirements 102 18 3 3 About measuring the airflow rate 103 18 3 4 To perform a BS unit test run 104 18 3 5 Troubleshooting during a BS unit test run 104 18 4 System test run 105 18...

Page 101: ...field settings are made In case a ventilated enclosure is required the following safety measures are correctly applied The ducting is properly installed and insulated The extraction fan is connected...

Page 102: ...guration e BS unit in parallel configuration f BS unit without safety measures g BS unit with external alarm h External alarm i Extraction fan j Outdoor unit Transmission wiring In case the safety mea...

Page 103: ...es 18 3 3 About measuring the airflow rate It is up to the installer to measure the airflow rate and provide correct data We advise 2 ways in the sections below but the installer is entirely free on h...

Page 104: ...s and visibly 3 In case of a configuration with a ventilated enclosure measure the airflow rate See 18 3 3 About measuring the airflow rate 4 103 for more information 4 In all configurations check if...

Page 105: ...ion the field settings of all BS units in a cluster need to be made correctly When in parallel configuration check that no dampers of other BS units in the same cluster have opened When in series conf...

Page 106: ...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 documentation a...

Page 107: ...e INFORMATION See the service manual for The complete list of error codes A more detailed troubleshooting guideline for each error 20 1 1 Prerequisites Troubleshooting 1 Carry out a thorough visual in...

Page 108: ...it 4P695527 1 2022 02 21 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...

Page 109: ...e wiring diagram on the unit Part numbering is by Arabic numbers in ascending order for each part and is represented in the overview below by in the part code Symbol Meaning Symbol Meaning Circuit bre...

Page 110: ...emitting diode HAP Light emitting diode service monitor green HIGH VOLTAGE High voltage IES Intelligent eye sensor IPM Intelligent power module K Contact K R KCR KFR KHuR K M Magnetic relay L Live L...

Page 111: ...high S NPL Pressure sensor low S PH HPS Pressure switch high S PL Pressure switch low S T Thermostat S RH Humidity sensor S W SW Operation switch SA F1S Surge arrester SEG 7 segment display SR WLU Si...

Page 112: ...n see the installation manual attached to the product 4 For X15A A1P remove the short circuit connector and connect the air conditioner stop signal optional product when using the drain up kit optiona...

Page 113: ...2A14AJV1B VRV 5 branch selector unit 4P695527 1 2022 02 Model DS1 DS2 factory settings BS12A ON DS1 A1P A2P OFF 1 2 3 4 ON DS2 OFF 1 2 3 4 ON DS1 A3P OFF 1 2 3 4 ON DS2 OFF 1 2 3 4 To set the DIP swit...

Page 114: ...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 instruct...

Page 115: ......

Page 116: ...4P695527 1 2022 02 Copyright 2022 Daikin Verantwortung f r Energie und Umwelt...

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