Viessmann SDIO/SM1A, Installation And Service Instructions Manual

Page 1: ...contractors VIESMANN SDIO SM1A electronics module In conjunction with the Vitotronic control unit and HMU control unit For controlling and regulating a solar DHW heating system SDIO SM1A electronics...

Page 2: ...st unintentional reopening Isolate the system from the power supply e g by removing the separate fuse or by means of a mains isolator and check that it is no longer live Safeguard the system against r...

Page 3: ...an be harmful to health Never let condensate touch your skin or eyes and do not swallow it Flue systems and combustion air Ensure that flue systems are clear and cannot be sealed for instance due to a...

Page 4: ...eating by the heat generator 23 Suppression of reheating by the boiler in relation to central heating backup not in conjunction with heat pumps 23 Maximum collector temperature 23 Minimum collector te...

Page 5: ...maintenance section and identified as follows Symbol Meaning Steps required during commissioning Not required during commissioning Steps required during inspection Not required during inspection Step...

Page 6: ...6 For available system examples see www viessmann schemes com Information System examples 5838676 Information...

Page 7: ...NTC 20 k standard delivery Temperature sensor NTC 10 k if installed a Temperature sensor NTC 10 k if installed sS Transfer pump or 3 way diverter valve sF Solar circuit pump f Power supply jF PlusBus...

Page 8: ...electrical fault occurs The appliance and pipework must be connected to the equipotential bonding of the building Isolators for non earthed conductors Install an isolator in the power cable to provide...

Page 9: ...s described above Adjusting the codes parameters The codes parameters for the SDIO SM1A electronics module are set at the heat generator control unit Service instructions for the heat generator or the...

Page 10: ...With PWM control Note Changed display on Vitotronic 200 heat pump control unit type WO1C Speed control solar circuit pump 03 Temperature differential for start of speed control Display Value Explanat...

Page 11: ...ure 60 C C 08 10 to 08 90 09 Maximum collector temperature Display Value Explanations 130 C 09 130 Maximum collector temperature to protect system components 130 C C 09 20 to 09 200 0A Stagnation time...

Page 12: ...speed Display Value Explanations 7 l min 0F 70 l min 0F 1 to 0F 255 Flow rate adjustable from 0 1 to 25 5 l min 1 step 0 1 l min 10 Target temperature control Display Value Explanations OFF 10 0 ON 10...

Page 13: ...tion with Vitocell 100 W type CVUB A Thermostat function and auxiliary function for increased DHW hygiene 20 6 Do not adjust in conjunction with Vitocell 100 W type CVUB A Solar heating via external h...

Page 14: ...nder 2 with cyclical heating 26 3 Cyclical heating without priority for any of the DHW cylinders 26 4 Cyclical heating without priority for one of the DHW cylinders 27 Cyclical heating time Display Va...

Page 15: ...perature sensor connections Check coding address 20 Solar circuit pump faulty or in correctly connected Check solar circuit pump connection see page 16 Check coding address 02 Carrying out a relay act...

Page 16: ...a PWM connection Code parameter 02 2 must be set If the PWM connection is interrupted the circulation pump must be switched off If the circulation pump runs at maximum speed when the PWM connection is...

Page 17: ...of instances where incorrect circulation was captured can be scanned Check time shown at the control unit adjust if neces sary Check current collector temperature and cylinder temperature via diagnos...

Page 18: ...18 Troubleshooting Repairs cont 5838676 Diagnosis...

Page 19: ...The following details are required when ordering parts Serial no see type plate Position number of the individual part within the assembly from this parts list Parts lists Parts list 5838676 Componen...

Page 20: ...20 0004 0010 0011 0012 0001 0003 0005 0006 0007 0008 0009 Fig 4 Parts lists Parts list cont 5838676 Components...

Page 21: ...ief fittings 0005 Collector temperature sensor NTC 20 k 0006 Power cable no 40 0007 Bus cable with plug aVG jF 0008 Temperature sensor NTC 10 k 0009 Connecting cable solar circuit pump 0010 Plug set 2...

Page 22: ...ature set at the high limit safety cut out if installed is exceeded Variable speed solar circuit pump The speed control is activated in coding address 02 It can only be activated for relay output sF S...

Page 23: ...f The reduced set DHW temperature is specified in coding address 67 or parameter 0C in the DHW group This value must be below the first set DHW temperature In systems with heat pumps During solar DHW...

Page 24: ...he dif ferential to the cylinder temperature is 50 K fault message 9E will be issued Monitoring of night circulation not in conjunction with heat pumps Code 0D 1 Unwanted flow rates in the solar circu...

Page 25: ...or DHW heating With the additional function for DHW heating boiler circuit control unit function the solar preheat stage can be heated at the selected times Boiler control unit settings Set a 2nd set...

Page 26: ...utilising excess heat Output sS is switched on when the temperature at sensor exceeds the start temperature Output sS is switched off when the temperature at sensor falls below the stop temperature Ex...

Page 27: ...arameter 1126 1 is exceeded The temperature set at the high limit safety cut out is exceeded Suppression of DHW cylinder reheating by the boiler Reheating is suppressed in 2 stages Reheating of the DH...

Page 28: ...0 1 step 0 1 l h In the delivered condition parameter 1136 3 is set to a value of 1 operation with Viessmann heat transfer medium Collector frost protection Viessmann collectors are filled with Viess...

Page 29: ...apacity Output sF 1 1 A 230 V Output sS 1 1 A 230 V Connection and wiring diagram Fig 6 A1 Main PCB PWM Speed control solar circuit pump if circulation pump with PWM control installed TB Maximum tempe...

Page 30: ...PlusBus for connecting with HMU control unit DIO electronics module or ADIO electronics module aVG KM BUS to Vitotronic boiler control unit Specification Connection and wiring diagram cont 5838676 App...

Page 31: ...tem are not part of ordi nary household waste For decommissioning the system isolate the system from the power supply and allow components to cool down where appropriate All components must be dispose...

Page 32: ...the European directives and supplementary national requirements in terms of its design and operational characteristics Using the serial number the full Declaration of Con formity can be found on the...

Page 33: ...d KM BUS 22 Functions setting 9 H Heat statement 24 28 I Incorrect circulation 17 Indirect cylinder heating 26 Interval function 25 Isolators 8 M Maximum collector temperature 23 27 Minimum collector...

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Page 36: ...Shropshire TF1 7YP GB Telephone 44 1952 675000 Fax 44 1952 675040 E mail info uk viessmann com Viessmann Werke GmbH Co KG D 35107 Allendorf Telephone 49 6452 70 0 Fax 49 6452 70 2780 www viessmann com...