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DEN-GT

VI.CW.C1.02 / LUK40110  

©  Danfoss 04/2011

1

Instructions

Termix VMTD-F-B

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

 ................................................... 5

Design ............................................................... 6

Schematic diagram (example) ........................ 6

Control .............................................................. 7

Maintenance ..................................................... 8

Troubleshooting DHW ..................................... 9

Troubleshooting  HE ...................................... 10

Summary of Contents for Termix VMTD-F-B

Page 1: ...rect 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...

Page 2: ...60204 1 Safety of machinery Electrical equipment of machines EMC Directive 2004 108 EEC EN 61000 6 2 2007 Electromagnetic compatibility Generic standard Immunity industry EN 61000 6 3 2007 Electromag...

Page 3: ...ed permissible operating parameters are exceeded The substation installation must be equipped with safety valves however always in accordance with local regulations Warning of hot surface The substati...

Page 4: ...ith the station it must be fitted according to schematic diagram Please note that the strainer may be supplied loose Pipe connections Internal installation and district heating pipes connections must...

Page 5: ...be disconnected for repairs Filling start up Prior to installation all substation pipes and connections should be cleaned and rinsed Before start up check that pipes are connected according to the cir...

Page 6: ...tion might look different than the substation shown Schematic diagram example HE supply HE return DHW CWM DH supply DH return DCW Substations as supplied may be different to those shown on Danfoss lit...

Page 7: ...DHW temperature control used in Danfoss substations DHW temperature should be adjusted to 45 50 C as this provides optimal utilisation of DH water At DHW temperatures above 55 C the possibility of lim...

Page 8: ...U Pressure Equalizer The GTU Pressure Equalizer absorbs the expansion on the secondary side of the Termix water heaters and can be used as a substitute to the safety valve Furthermore the pressure equ...

Page 9: ...n line clogged Clean strainer s DHW circulation pump out of order or with setting too low Check circulation pump Defective or clogged non return valve Replace clean No electricity Check Wrong setting...

Page 10: ...the functioning of the pressure expansion vessel if required Air pockets in the system Vent the installation thoroughly Limiting of the return temperature adjusted too low Adjust according to instruc...

Page 11: ...the radiators as low as ever possible while maintaining a reasonable level of comfort The system is single pipe loop The system should feature electronic controls as well as return sensors Pump pressu...

Page 12: ...HE and DHW Instructions 12 VI CW C1 02 LUK40110 Produced by Danfoss A S 04 2011 Gemina Termix A S Member of the Danfoss Group Navervej 15 17 DK 7451 Sunds Denmark Tel 45 9714 1444 Fax 45 9714 1159 ma...

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