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Installation and operation manual VRV 5 branch selector unit BS4A14AJV1B BS6A14AJV1B BS8A14AJV1B Installation and operation manual BS10A14AJV1B English VRV 5 branch selector unit BS12A14AJV1B...
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All other floors Lowest underground floor No safety measure No safety measure External alarm Ventilated enclosure Ventilated enclosure m [kg] m [kg] [m²] [m²] Lowest under- Lowest under- m [kg] All other floors m [kg] All other floors ground floor ground floor No safety measure External alarm...
Table of contents 13.5 Installing the ventilation ducting ..........24 Table of contents 13.5.1 To install the ducting (field supply)....... 24 13.5.2 To install the duct closing plate........25 13.5.3 To switch the air in- and outlet side ......25 1 About this document 14 Piping installation 2 Specific installer safety instructions...
▪ A subset of the latest technical data is available on the regional installation" [ 4 28]) Daikin website (publicly accessible). WARNING ▪ The full set of latest technical data is available on the Daikin Business Portal (authentication required). Field piping method MUST be in accordance with the instructions...
2 Specific installer safety instructions CAUTION WARNING Install the refrigerant piping or components in a position Appliance MUST be installed in accordance with national where they are unlikely to be exposed to any substance wiring regulations. which may corrode components containing refrigerant, CAUTION unless the components are constructed of materials that are inherently resistant to corrosion or are suitably...
Make sure installation, servicing, maintenance and repair ▪ Piping in refrigerating systems shall be designed and comply with instructions from Daikin and with applicable installed such as to minimise the likelihood of hydraulic legislation and are executed ONLY by authorised persons.
3 User safety instructions ▪ Batteries are marked with the following symbol: CAUTION This unit is equipped with electrically powered safety measures, such as a refrigerant leak detector. In order to be This means that the batteries may NOT be mixed with unsorted household waste.
▪ Be aware that the refrigerant inside Daikin and, in addition, comply with the system is odourless. applicable legislation and are performed by qualified persons only. In...
5 Before operation Heat recovery outdoor unit Precautions for maintenance and Branch selector (BS) Refrigerant piping service VRV direct expansion (DX) indoor unit Remote controller in normal mode CAUTION Remote controller in alarm only mode Remote controller in supervisor mode (mandatory in instructions" ...
7 Troubleshooting In case of detection when the unit is in standby Malfunction Measure When the detection occurs when the unit is in standby, a "false If a refrigerant leak ▪ Actions will be taken by the system. Do detection check" will occur. occurs (error code NOT turn OFF the power supply.
10 About the box For the installer Gas header reducer pipe (Ø22.2 → 12.7 mm) About the box Gas header reducer pipe (Ø22.2 → 15.9 mm) Gas header reducer pipe (Ø22.2 → 19.1 mm) Gas header expander pipe (Ø22.2 → 28.6 mm) NOTICE Before installation, check the packaging and parts for damage. Make sure that the shipment is complete. About the unit and options NOTICE When you carry or manipulate the unit, never tilt it more...
12 Special requirements for R32 units The safety measures that are needed for the BS unit are explained 11.2.1 Identification label: BS unit in more detail below. If they are followed, no additional safety Location measures for the BS unit are required. Follow the installation requirements for the BS unit as explained in this manual carefully and follow the installation requirements described in the outdoor unit and indoor unit installation and operation manuals to ensure that the...
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12 Special requirements for R32 units If the partition between two rooms on the same floor meets certain Note: When "No safety measure" is required, it is still allowed to requirements then the rooms are considered as one room and the install an external alarm or ventilated enclosure if wanted.
12 Special requirements for R32 units For the occupancy listed below, the alarm system must additionally warn at a supervised location with 24-hour monitoring: No safety measure External alarm ▪ with sleeping facilities. ▪ where an uncontrolled number of people are present. ▪...
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12 Special requirements for R32 units The information in the table below must be taken into account in Note: The internal pressure of the BS unit should not be more than case a ventilated enclosure is used as a safety measure: 350 Pa below the pressure of the surroundings.
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12 Special requirements for R32 units 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 conversion of units might be required. Beware that for ducting, the pressure drop from the manufacturer might be given per unit length of ducting (units are for example Pa/m).
12 Special requirements for R32 units Assign a unique cluster number to each cluster in the system. All Multiple BS units in series – one extraction fan BS units in the same cluster MUST have the same cluster number. In this configuration, multiple BS units are connected in series to a single extraction fan.
13 Unit installation 12.6 Combinations of safety measures WARNING The appliance shall be stored in a room without It is possible to combine BS units with different safety measures (no continuously operating ignition sources (example: open safety measures, external alarm and ventilated enclosure) in the flames, an operating gas appliance or an operating electric same system.
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13 Unit installation ▪ Combining drain pipes. It is possible to combine drain pipes. Ambient condition Value Use drain pipes and T-joints with the correct gauge for the Indoor humidity ≤80% operating capacity of the units. Do NOT install the unit in the following places: ▪...
13 Unit installation A’ B’ [mm] Ceiling opening size: 800 mm (BS4A) 1200 mm (BS6~8A) 1600 mm (BS10~12A) 13.2 Possible configurations Refrigerant piping Default flow. Only ducting on the air outlet side. (Default configuration) Default flow. Ducting on both sides. Reversed flow. Only ducting on the air outlet side. Reversed flow.
13 Unit installation 3 Position the unit by hooking the hanger brackets of the unit around the suspension bolts, in between the two washers. 3× Nut (field supply) Washer (field supply) 13.3.3 To close the unit Hanger bracket Double nut (field supply) 3×...
13 Unit installation 13.4.2 To connect the drain piping NOTICE Incorrect connection of the 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. Drain pipe connection (attached to the unit) Drain hose (accessory) Metal clamp (accessory)
13 Unit installation 1 Remove the duct connection. Do not not throw away the ▪ Position a 160 mm duct of at least 1 m over the unit duct screws. connection. ▪ Fix the duct to the duct connection with minimum 3 screws. ▪...
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13 Unit installation ▪ Unplug the damper wire from the intermediate connector. ▪ Loosen and remove the damper earth wire screw and detach the damper 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.
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13 Unit installation Damper 15 Connect the damper wires. 1× 4× ≤ 1.7 N•m To install the duct connection 12 Position the duct connection onto the other side of the unit. 13 Attach the duct connection with 4 screws. Connector Earth wire screw Damper earth wire ▪...
14 Piping installation 2× ≤ 3.2 N•m 17 Attach the damper wires. ▪ Attach the damper wire on the refrigerant piping, in the indicated places. Make sure the wire is tight, but do not pull on it excessively. ▪ Leave 20 cm of wire between the fixation on the pipe and the entry into the switch box in order to be able to put back the switch box.
14 Piping installation 14.2 Preparing refrigerant piping 14.2.1 Refrigerant piping requirements NOTICE The piping and other pressure-containing parts shall be suitable for refrigerant. Use phosphoric acid deoxidised seamless copper for refrigerant. ▪ Foreign materials inside pipes (including oils for fabrication) must be ≤30 mg/10 m.
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14 Piping installation BS unit Liquid pipe (field supply) HP/LP gas pipe (field supply) Suction gas pipe (field supply) Reducing joints and insulation tubes (accessory) Indoor unit connection set Liquid pipe (field supply) Gas pipe (field supply) WARNING Insulation tube (accessory) Bent header or branch pipes can lead to refrigerant Cut surface (branch pipes only) leakage.
15 Electrical installation Power supply wiring 14.3.2 To braze the pipe end The power supply wiring must be protected with the required safety NOTICE devices, i.e. a main switch, a slow blow fuse on each phase and an earth leakage protector in accordance with the applicable legislation. Precautions when connecting field piping.
15 Electrical installation Example 15.2 To connect the electrical wiring NOTICE ▪ Follow the wiring diagram (delivered with the unit, INDOOR INDOOR INDOOR INDOOR OUT- UNIT UNIT UNIT UNIT DOOR located at the inside of the service cover). UNIT IN/D OUT/D UNIT F1 F2 F1 F2 F1 F2 F1 F2...
15 Electrical installation Guidelines 15.4 To set the DIP switches ▪ Make sure the length of the earth wire between the fixation point The DIP switches are located on the PCB's A1P, A2P (BS6~12A) and the terminal is longer than the length of the power supply and A3P (BS10-12A).
16 Configuration DS2 (A1P) Example When joining branch pipe ports A and B. Examples DS1 (A1P) 1. When connecting an indoor unit to branch pipe ports A, B, and D, but NOT connecting an indoor unit to branch pipe port C. SVS output terminals (1 and 2) DS2 (A1P) Cable to external alarm circuit...
16 Configuration ▪ DIP switches Description Mode 1 and 2 Setting 8 Mode Description (in mode 2) Mode 1 Mode 1 can be used to monitor the current Value 4 situation of the BS unit (monitoring (in mode 2) settings) Mode 2 Mode 2 is used to change the field settings of the system.
16 Configuration What Result: Mode 2 is accessed: Changing and accessing Once mode 1 is selected (push BS1 3 Push BS2 seven times. the setting in mode 1 one time), you can select the wanted setting. It is done by pushing BS2. Accessing the selected setting's value is Result: Mode 2 setting 7 is addressed: done by pushing BS3 one time.
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16 Configuration [2-2] Definition [2-7] Ventilated enclosure 0 (default) Parallel cluster Disable Series cluster 1 (default) Enable [2-3] [2-8] Setting to simulate a refrigerant leak. Setting to assign an address value to the BS unit for the supervisor remote controller. This setting has to be put on "1"...
Outdoor unit Transmission wiring commissioning checklist is also available on the Daikin Business Portal (authentication required). In case the safety measures demand a ventilated enclosure, the BS unit test run has to include a measurement of the actual extraction The general commissioning checklist is complementary to airflow rate to confirm that it meets the legal requirements.
17 Commissioning NOTICE It is very important that all refrigerant piping work is done before the units (outdoor, BS or indoor) are powered on. When the units are powered on, the expansion valves will initialise. This means that the valves will close. If any part of the system has already been powered on, setting [2-21] on the outdoor unit has to be activated to open the expansion valves.
18 Hand-over to the user Symptom: The extraction fan does not turn ON In case an external alarm is required, the following safety measures are correctly applied: Possible causes Corrective action ▪ The external alarm is connected and powered. Incorrect field settings Check if all field settings are ▪...
▪ A subset of the latest technical data is available on the regional Daikin website (publicly accessible). WARNING ▪ The full set of latest technical data is available on the Daikin Prevent hazards due to inadvertent resetting of the thermal Business Portal (authentication required).
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21 Technical data Symbol Colour Symbol Colour Symbol Meaning Black Orange Thermo switch Blue Pink Residual current device Brown PRP, PPL Purple Resistor Green Thermistor Grey White Receiver Yellow Limit switch Float switch Symbol Meaning S*NG Refrigerant leak detector Printed circuit board (PCB) S*NPH Pressure sensor (high) Pushbutton ON/OFF, operation...
Equipment made or approved by Daikin that can be Model DS1, DS2 factory settings combined with the product according to the instructions in BS4A the accompanying documentation. Field supply Equipment NOT made by Daikin that can be combined with product according instructions BS6A accompanying documentation. BS8A...
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4P670163-1 0000000L 4P670163-1 2022.02 Verantwortung für Energie und Umwelt...