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Contents

Introduction .............................................................................................3

Guarantee ............................................................................................3
Recommended Usage..........................................................................3
Patents .................................................................................................3

Important Safety Information .................................................................4
Pack Contents Checklist ........................................................................6

Specifications

 ..........................................................................................7

Installation .............................................................................................10

General...............................................................................................10
Typical Suitable Installations for DM and BSDM ................................ 11
Typical Suitable Installations for DM Pumped ....................................14
Installation Schematic ........................................................................15
Power Supply Unit ..............................................................................18
Digital Mixer........................................................................................19

Operation ...............................................................................................23
Commissioning .....................................................................................23
Fault Diagnosis ......................................................................................23
Maintenance ...........................................................................................25

General...............................................................................................25
Cleaning .............................................................................................25
Checkvalve Cartridges - Removal and Installation.............................25

Spare Parts ............................................................................................27
Accessories ...........................................................................................30
Customer Services ................................................................................31

If you experience any difficulty with the installation or operation of your new digital 

mixer, please refer to 

‘Fault Diagnosis’

, before contacting Kohler Mira Ltd. Our 

contact details can be found in section: 

‘Customer Services’

.

Summary of Contents for BSDM

Page 1: ...1 These instructions are to be left with the user Installation and User Guide Mira Digital Mixer ...

Page 2: ...stallation Schematic 15 Power Supply Unit 18 Digital Mixer 19 Operation 23 Commissioning 23 Fault Diagnosis 23 Maintenance 25 General 25 Cleaning 25 Checkvalve Cartridges Removal and Installation 25 Spare Parts 27 Accessories 30 Customer Services 31 If you experience any difficulty with the installation or operation of your new digital mixer please refer to Fault Diagnosis before contacting Kohler...

Page 3: ...ixer BSDM Guarantee For domestic installations Mira Showers guarantee the Mira Digital Mixer against any defect in materials or workmanship for a period of five years from the date of purchase shower fittings for one year For non domestic installations Mira Showers guarantee the Mira Digital Mixer for a period of one year from the date of purchase For terms and conditions refer to section Customer...

Page 4: ...oducts manufactured by us are safe and risk free provided that they are installed used and maintained in good working order in accordance with our instructions and recommendations 3 Isolate the electrical and water supplies before connecting to the appliance 4 Mains connections are exposed when the cover is removed 5 Make sure that any pipework that could become frozen is properly insulated 6 Havi...

Page 5: ... be given to the young the elderly the infirm the disabled anyone who suffers from a medical condition that can result in temporary incapacity e g epilepsy or blackouts or anyone inexperienced in the correct operation of the controls 6 Sunburn or skin conditions can increase your sensitivity to hot water Make sure that you set the shower to a cooler temperature 7 If any of the following conditions...

Page 6: ... PSU q 3 x 15 mm Compression Nuts and Olives q 4 x Fixing Screws and Wall Plugs q 1 x Ferrite 2 x Ferrites Mira BSDM model only q 1 x Light Green Flow Regulator q 1 x Dark Green Flow Regulator q 6 x Rubber Feet q 2 x Fixing Screws and Wall Plugs q 1 x Cable Cover Retaining Screw q 1 x 22 mm Compression Nut and Olive Mira BSDM model only q 1 x Mira Digital Mixer DM q 1 x Mira Digital Mixer Pumped V...

Page 7: ...intained Pressure DM Pumped BSDM 500 kPa 5 bar 100 kPa 1 bar 10 m max total head 500 kPa 5 bar Minimum Maintained Pressure DM Pumped BSDM 50 kPa 0 5 bar 1 kPa 0 01 bar 0 1 m min total head 50 kPa 0 5 bar Supply Pressure Differential Nominally Equal Temperatures Maximum Temperature factory pre set 45 C shower 46 C bath Maximum Temperature setting range 36 C 48 C Minimum Temperature Thermostatic con...

Page 8: ... Flow Rates DM DM Pumped BSDM Nominal Flow Rates will vary depending on inlet maintained pressure and spout kit Low High n a n a n a n a 11 L Min 18 L Min Electrical DM DM Pumped BSDM Supply Voltage 100 240 V RMS 50 60 Hz 230 V 10 RMS 50 Hz 100 240 V RMS 50 60 Hz Maximum Load 35 W at 12 VDC 200 W at 230 V AC 35 W at 12 VDC Fuse 3AMP Fused Supply 3AMP Fused Supply 3AMP Fused Supply Duty Cycle n a C...

Page 9: ...9 511 mm 33 mm 44 mm 86 mm 458 mm View from Side A 96 mm 118 mm 172 mm 188 mm A 55 mm 90 mm 168 mm Dimensions Note Outlet configuration will vary depending on model ...

Page 10: ...carry out routine maintenance and servicing Safe and easy access to the installed product MUST be available at all times When installing a mixer valve in an area not regularly accessed consideration for potential leaks must be taken into account While such events are unlikely it is advisable to periodically check the installation for traces of water on or around the product If possible site the va...

Page 11: ...irectly controls the gas flow rate to the burner An expansion vessel MUST be fitted and regularly maintained if any form of backflow prevention device is fitted e g non return valve or PRV This will make sure that excess expansion or pulse pressures do not damage the product or plumbing system The expansion vessel may already be fitted within the boiler check with the manufacturer and is in additi...

Page 12: ...shed through followed by a brief hot shot until the hot water supply is stabilised Use of Flow Regulators with Combination Boilers The Digital Mixer can demand more hot water than some instantaneous water heaters combination boilers can heat especially in winter when the mains water is colder A flow regulator may need to be used to make sure that the Digital Mixer can deliver a full range of water...

Page 13: ...ype fitted with a tempering valve can be used A drop type pressure reducing valve must be fitted and regularly maintained if any form of backflow prevention device is fitted e g non return valve PRV then an expansion vessel should also be fitted This will ensure that excess expansion or pulse pressures do not damage the product or the plumbing system The expansion vessel may already be fitted exte...

Page 14: ...tern and a hot water cylinder providing nominally equal pressures Pipework layouts and connections must be such that other draw offs will not effect water supplies to the shower It is therefore best practice to have independent hot and cold supplies to the pumped version of the Mira Magna digital mixer Mira Magna Water Delivery System 1 0 metre minimum Air Separation 100 mm from the lowest level o...

Page 15: ...Ferrites To Mains Power Supply To Mains Power Supply Note Metal pipework must be earth bonded Note Metal pipework must be earth bonded Hot Inlet Cold Inlet Cold Inlet Outlet Outlets Mira Magna Water Delivery System Mira Magna Water Delivery System Control Panel optional Spouts Mira Magna BSM Interface Hot Inlet Mira BSDM Mira DM and Mira DM Pumped Pumped Version Recommended Method Pump Power Suppl...

Page 16: ... strainers will reduce the need to remove debris at the mixing valve point The recommended maximum mesh aperture dimension for such strainers is 0 5 mm Pipework must be rigidly supported to avoid any strain on the connections Pipework dead legs should be kept to a minimum Supply pipework layout should be arranged to minimise the effect of other outlet usage upon the dynamic pressures at the mixing...

Page 17: ...l surface If the Digital Mixer is installed in a different orientation to those shown it may malfunction e g cause airlocks effect the thermal performance and could cause water ingress Caution The Digital Mixer MUST NOT be installed in the orientations shown below Cold Inlet Cold Inlet Cold Inlet Hot Inlet Hot Inlet Hot Inlet Outlet Outlet Outlet ...

Page 18: ...is recommended that both Power Supply cables from the Digital Mixer are connected to the 3 amp switched fuse spur box via a separate junction box not supplied Refer to section Installation Installation Schematic Put the PSU in the required position and mark the positions of the fixing holes Drill and plug the fixing holes Note Installers may wish to obtain alternative proprietary cavity fixings wh...

Page 19: ... of the fixing holes in the required position Drill and plug the fixing holes Note Installers may wish to obtain alternative proprietary cavity fixings when installing onto a dry lined stud partition shower cubicle or laminated panel wall structures However these methods of fixing are beyond the scope of this guide Make sure that the rubber feet 6 off are located on the bottom of the digital mixer...

Page 20: ...ble from the PSU to the Digital Mixer and position the moulded grommet on the PSU cable into the slot of the electrical connection compartment Connect the cable connection from the water delivery system to the Digital Mixer and position the moulded grommet on the cable connection into the slot of the electrical connection compartment Cable Connection for the Water Delivery System Moulded Grommets ...

Page 21: ...m the water delivery system to the cable from the Digital Mixer For the DM Pumped model connect the cable from the pump in the Digital Mixer to the 3 amp fused spur For the BSDM model connect the cables from the water delivery system and user interface to the cable from the digital mixer via the junction box Note For all models refer to the separate Installation and User Guides for the Mira Magna ...

Page 22: ...igital Mixer must be held securely when the supply pipes are being tightened Connect the outlet pipe s to the Digital Mixer Caution The outlet connection s on the Digital Mixer must be held securely when the outlet pipe s are being tightened Restore the hot and cold water supplies and make sure that there are no leaks Restore the power supply Cold Inlet Hot Inlet Cold Water Supply Hot Water Supply...

Page 23: ...e that the underlying cause of the malfunction has been resolved Warning There are no user serviceable components beneath the cover of the appliance Only a competent tradesperson should remove the cover Note This is not an extensive list of faults if you find a fault that is not listed please contact us for assistance Most faults can be rectified by checking the following Make sure that the water ...

Page 24: ...asing cold feed pipe to cylinder to Ø28 mm Shower runs cool for a short time 1 2 minutes then flow splutters Air ingress into hot pipework Refer to the system diagrams in section Installation Flow of water virtually stops and surges on off after a few minutes Incorrect storage of cold water in cistern 230 litres recommended Increase storage of cold water Shower runs cold after 5 10 minutes Incorre...

Page 25: ...s These finishes should be cleaned with a mild washing up detergent or soap solution and then wiped dry using a soft cloth Checkvalve Cartridges Removal and Installation Hot water entering the cold supply or vice versa indicates that immediate attention is necessary This is carried out by removing and cleaning or renewing as necessary the checkvalve cartridges Isolate the water supply to the Digit...

Page 26: ...ridge is not a serviceable item so any apparent wear or damage will require its renewal Do not overtighten when re fitting checkvalve cartridges Restore the water and power supplies and check for leaks 3 1 4 5 2 Checkvalve Cartridge Assembly Checkvalve Cartridge Assembly Checkvalve Checkvalve Inlet Adaptor Inlet Adaptor Strainer Strainer ...

Page 27: ...25 Checkvalve Cartridge Assy Filter Pack 463 94 Inlet Adapter 464 04 Inlet Saddle Clamp 464 03 Outlet Saddle Clamp 463 06 Cable Cover Pack 463 89 Control PCB 463 83 Power Supply Unit 463 05 Seal and Screw Pack Components Identified A 463 28 Internal Saddle Clamp 463 95 Outlet Adaptor A A A A A A A A A A A 463 08 Single Thermistor Pack 1653 081 Flow Regulator and Ferrite Pack 1618 106 Extension Lea...

Page 28: ... Clamp 464 03 Outlet Saddle Clamp 463 33 Solenoid Manifold Pumped 463 34 Pump and Motor Assembly 463 06 Cable Cover Pack 463 99 Control PCB 463 35 Pump Control PCB 463 83 Power Supply Unit 463 05 Seal and Screw Pack Components Identified A 463 28 Internal Saddle Clamp 463 95 Outlet Adaptor A A A A A A A A A A A A 463 08 Single Thermistor Pack 1653 081 Flow Regulator and Ferrite Pack 1618 106 Exten...

Page 29: ...h 463 26 Blanking Plate Pack 463 25 Checkvalve Cartridge Assembly Filter Pack 463 94 Inlet Adapter 464 04 Inlet Saddle Clamp 464 03 Outlet Saddle Clamp 463 06 Cable Cover Pack 1618 111 Control PCB 463 83 Power Supply Unit 463 28 Internal Saddle Clamp 1618 110 Outlet Adaptors 463 08 Single Thermistor Pack A A A A A A A A A A A 1653 080 Flow Regulator and Ferrite Pack 1618 106 Extension Lead and Con...

Page 30: ...Seat White Chrome 2 1731 001 Grey Chrome 2 1731 002 Stylish slim line and robust shower seat for use in or outside of the shower area Folds up when not in use Maximum User Weight 150 kg 23 5 stone Note Must be installed onto a solid wall Logic Showerhead Holder White 2 1605 149 White Chrome 2 1605 150 An alternative to the traditional slide bar Often a useful addition when positioned for the small...

Page 31: ...o call If the performance of your product declines check in this manual to see if simple home maintenance is required If you require further assistance call our Customer Services Team Extended Guarantees A selection of protection plans are available that enable you to cover repair bills for the life of your policy excludes Eire Ring 01922 471763 for more details Helpdesk Service Our dedicated Cust...

Page 32: ...32 UK AS FM 14648 1103138 W2 E 1503 1588 N73H N78A N79A Kohler Mira Limited November 2010 ...

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