Viessmann SM1 Installation And Service Instructions Manual
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Summary of Contents for Viessmann SM1
- Page 1 VIESMANN Installation and service instructions for contractors Solar control module Type SM1 for wall mounting For applicability, see the last page Solar control module Please keep safe. 5684 235 GB 5/2015...
- Page 2 ■ installer or a qualified person authorised by the For replacements, use only original spare parts installer. supplied or approved by Viessmann. Regulations to be observed Safety instructions for operating the system National installation regulations If you smell gas ■...
- Page 3 Safety instructions Safety instructions (cont.) What to do if water escapes from the appliance Danger When water escapes from the appliance there is a risk of electrocution. Switch off the heating system by means of an external isolator (for example fuse box, domestic power distribution).
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Page 4: Table Of Contents
Index Index Information Disposal of packaging ................Symbols ....................Intended use ..................Installation sequence Overview of system examples ............... Mounting on the wall ................Overview of electrical connections ............Power supply ..................Commissioning Configuring the solar control module ............. Coding addresses overview ..............Coding .................... -
Page 5: Disposal Of Packaging
Please dispose of packaging waste in line with statu- DE: Use the disposal system organised by tory regulations. Viessmann. AT: Use the ARA statutory disposal system (Altstoff Recycling Austria AG, licence number 5766). CH: Packaging waste is disposed of by the HVAC contractor. -
Page 6: Overview Of System Examples
Installation sequence Overview of system examples Oil/gas boiler Control unit type HC1B, HO1B, HO1C, KW6B KC2B, KC4B, KO1B, HO2B KO2B System example DHW heating with a dual mode DHW cyl- 4605132 4605302 4605373 inder DHW heating and central heating backup 4605029 with a multi mode heating water buffer cylinder... -
Page 7: Overview Of Electrical Connections
Installation sequence Overview of electrical connections & aÖ fÖ L ? N L ? N 230 V~ Fig. 2 Solar control module Temperature sensor NTC 10 k (if installed) aÖ Ω Cylinder temperature sensor NTC 10 k (stand- Transfer pump or 3-way diverter valve Ω... - Page 8 Installation sequence Power supply (cont.) Power supply for accessories and external compo- nents ■ For accessories and external components that will not be connected to the control unit, we recommend making the power connection to the same MCB/fuse, or at the very least in-phase with the control unit. Connection to the same MCB/fuse provides addi- ■...
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Page 9: Configuring The Solar Control Module
Commissioning Configuring the solar control module The solar control module is recognised as a KM BUS Service instructions for the heat source or con- subscriber automatically by the heat generator control trol unit unit (coding address 54). The relevant codes for the solar control module are set ■... - Page 10 0b:0 Frost protection function for solar 0b:1 Frost protection function for solar cir- circuit switched off cuit switched on (not required with Viessmann heat transfer medium). Flow rate monitoring 0C:1 Flow rate monitoring active. 0C:0 Flow rate monitoring inactive. No flow rate captured in the solar circuit, or flow rate too low.
- Page 11 Commissioning Coding addresses overview (cont.) Coding in the delivered condition Possible change Set solar cylinder temperature 11:50 Set solar DHW temperature 50 °C. 11:10 The set solar DHW temperature is Target temperature control active adjustable from 10 to 90 °C. ■...
- Page 12 Commissioning Coding addresses overview (cont.) Coding in the delivered condition Possible change Priority DHW cylinder (cyclical heating) 26:1 Priority for DHW cylinder 1 with 26:0 Priority for DHW cylinder 1 with- – – cyclical heating. out cyclical heating. (Code "20:9" must be selected). 26:2 Priority for DHW cylinder 2 with-...
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Page 13: Faults Displayed With A Fault Code
Troubleshooting Faults displayed with a fault code The fault codes are displayed on the heat source con- trol unit. Fault code dis- System characteristics Cause Measures played Control mode Short circuit, temperature Check sensor at the solar con- sensor trol module (see page 15). Control mode Short circuit, temperature Check sensor... -
Page 14: Repairs
Troubleshooting Errors without fault code display (cont.) Fault Cause Remedy Solar circuit pump not running Temperature sensors inter- Check temperature sensor connection. See the or runs constantly changed. relevant system example. Check setting of coding address 20. Solar circuit pump faulty or in- Check solar circuit pump connection (see correctly connected. -
Page 15: Check Temperature Sensors
Troubleshooting Repairs (cont.) Check temperature sensors 1. Pull plug from the respective temperature sensor and check the sensor resistance. & aÖ 2. Compare the sensor resistance with the curve (see the following diagram). 3. In the event of severe deviation replace the sensor. Fig. - Page 16 Troubleshooting Repairs (cont.)
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Page 17: Parts List
0343 0344 Fig. 5 0311 Collector temperature sensor NTC 20 k 0348 Plastic module casing Ω 0330 Solar control module SM1 0349 Strain relief fittings 0341 Power cable fÖ 0350 Installation and service instructions 0342 KM BUS cable 0343 Cylinder temperature sensor NTC 10 k Ω... -
Page 18: Function Description
Function description Function description Note Service instructions for heat source or control Set or alter the functions described below in coding unit levels 1 and 2 ("Solar"/4 group) at the heat source control unit. Solar DHW heating The solar circuit pump starts according to the following ■... -
Page 19: Suppression Of Dhw Cylinder Reheating By The Heat Generator
Function description Function description (cont.) Suppression of DHW cylinder reheating by the heat generator in systems with boilers in systems with heat pumps Reheating is suppressed in 2 stages: During solar DHW heating, the "DHW set tempera- ■ Reheating of the DHW cylinder by the boiler is sup- ture"... -
Page 20: Flow Rate Monitoring
In the delivered condition, coding address 0E is set to and the operating time of the solar circuit pump are a value of 1 (operation with Viessmann heat transfer taken into account. medium). -
Page 21: Extended Functions
Function description Function description (cont.) Extended functions The extended functions are set in coding address 20. Note Extended control functions can be used only in relation to the selected system example and the system com- ponents listed there. Additional function for DHW heating With the additional function for DHW heating (boiler Note circuit control unit function), the solar preheat stage... -
Page 22: External Heat Exchanger
Function description Function description (cont.) External heat exchanger Set code 20:7 or 20:8. Code 20:7: ■ The cylinder is heated via an external heat exchanger. Secondary pump starts in parallel with & solar circuit pump Code 20:8: ■ If an additional temperature sensor is used, sec- ondary pump starts when solar circuit pump... -
Page 23: Specification
Specification Specification Rated voltage 230 V~ Rated frequency 50 Hz Rated current Power consumption 1.5 W Safety category IP rating IP 20 D to EN 60 529; ensure through de- sign/installation Permissible ambient temperature During operation 0 to +40 °C ■... - Page 24 Specification Connection and wiring diagram (cont.) Collector temperature sensor NTC 20 k Solar circuit pump & Ω Temperature sensor NTC 10 k (if installed) Power supply Ω fÖ Temperature sensor NTC 10 k (if installed) KM BUS for boiler control unit aÖ...
- Page 25 Keyword index Keyword index Additional function, DHW heating......21 Maximum collector temperature.........19 Minimum collector temperature........19 Minimum temperature..........19 Capturing the collector temperature......20 Central heating backup..........21 Coding addresses............9 Night circulation monitoring........20 Configuring..............9 Connection and wiring diagram........23 Cyclical heating............22 Parameters..............9 Power supply..............7 Priority control............
- Page 28 Applicability Serial No.: 7429073 7429802 Viessmann Werke GmbH&Co KG Viessmann Limited D-35107 Allendorf Hortonwood 30, Telford Telephone: +49 6452 70-0 Shropshire, TF1 7YP, GB Fax: +49 6452 70-2780 Telephone: +44 1952 675000 www.viessmann.com Fax: +44 1952 675040 E-mail: info-uk@viessmann.com...
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