Danfoss Termix VMTD-F-B Instructions Manual
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Danfoss Termix VMTD-F-B Instructions Manual

Termix vmtd-f-b district heating substation for direct heating and instantaneous domestic hot water
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Instructions

Table of Contents

DEN-GT
Termix VMTD-F-B
District heating substation for
direct heating and
instantaneous domestic hot water
Declaration of conformity ............................... 2
Safety notes ...................................................... 3
Storage .............................................................. 3
Disposal ............................................................. 3
Mounting .......................................................... 4
Pipe connections ................................................ 4
Electrical connection .......................................... 5
Filling, start-up ................................................... 5
Design ............................................................... 6
Schematic diagram (example) ........................ 6
Control .............................................................. 7
Maintenance ..................................................... 8
Troubleshooting DHW ..................................... 9
Troubleshooting HE ...................................... 10
VI.CW.C1.02 / LUK40110
© Danfoss 04/2011
1

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Summary of Contents for Danfoss Termix VMTD-F-B

  • Page 1: Table Of Contents

    Termix VMTD-F-B Instructions District heating substation for direct heating and instantaneous domestic hot water Table of Contents Declaration of conformity ....... 2 Safety notes ............3 Storage .............. 3 Disposal ............. 3 Mounting ............4 Pipe connections ..........4 Electrical connection .......... 5 Filling, start-up ...........

  • Page 2: Declaration Of Conformity

    Instructions Termix VMTD-F-B - substation for direct HE and DHW Declaration of conformity Declaration of compliance Gemina Termix A/S Member of the Danfoss Group Navervej 15-17 DK-7451 Sunds Do hereby on our own responsibility declare that the following products: Termix Substations...

  • Page 3: Safety Notes

    Instructions Termix VMTD-F-B - substation for direct HE and DHW Safety notes The following instructions refer to the standard The risk of persons being injured and equipment design of substation. Special versions of damaged increases considerably if the substations are available on request.

  • Page 4: Mounting

    Instructions Termix VMTD-F-B - substation for direct HE and DHW Mounting The substation must be installed and connected by authorized service personnel. Installation must be in compliance with local standards and regulations. Allow adequate space around the substation for mounting and maintenance purposes.

  • Page 5: Electrical Connection

    Instructions Termix VMTD-F-B - substation for direct HE and DHW Electrical connection Before making electrical connections, please note the following: - Please read the relevant parts of safety notes. Electrical connections must be made by an - The substation must be connected to 230 V AC authorised electrician only.

  • Page 6: Design

    Schematic diagram (example) supply supply return return Substations as supplied may be different to those shown on Danfoss literature. Plate heat exchanger DHW 31 Differential pressure controller Ball valve 41A Fitting piece, Energy meter Thermostatic valve 41B Fitting piece, Cold water mains...

  • Page 7: Control

    Instructions Termix VMTD-F-B - substation for direct HE and DHW Control Differential pressure controller The differential pressure controller smooths out the fluctuations in pressure arriving from the district heating network. The operating pressure in the substation is thus held steady.

  • Page 8: Maintenance

    Instructions Termix VMTD-F-B - substation for direct HE and DHW Safety valve The purpose of the safety valve is to protect the substation from excessive pressure. The blow-off pipe from the safety valve must not be closed. The blow-off pipe outlet should be placed so that it discharges freely and it is possible to observe any dripping from the safety valve.

  • Page 9: Troubleshooting Dhw

    Instructions Termix VMTD-F-B - substation for direct HE and DHW Troubleshooting DHW - the strainer on the DH supply pipe is clean, - the supply temperature of the DH is at the normal level (summer, at least 60 °C - We recommend that troubleshooting be carried winter, at least 70 °C),...

  • Page 10: Troubleshooting He

    Instructions Termix VMTD-F-B - substation for direct HE and DHW Troubleshooting HE Problem Possible cause Solution Strainer clogged in DH or HE circuit Clean gate/strainer. (radiator circuit). The filter in the heat meter on DH circuit Clean the filter (after consulting the DH clogged.
  • Page 11 Instructions Termix VMTD-F-B - substation for direct HE and DHW Problem Possible cause Solution Too small heating surface/too small radiators compared to the total heating Increase total heating surface. requirement of the building. Make sure the heat is distributed evenly across the full heating surface –...
  • Page 12 Instructions Termix VMTD-F-B - substation for direct HE and DHW Gemina Termix A/S • Member of the Danfoss Group • Navervej 15-17 • DK-7451 Sunds • Denmark Tel.: +45 9714 1444 • Fax: +45 9714 1159 • mail@termix.dk • www.heating.danfoss.com VI.CW.C1.02 / LUK40110...

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