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Operating Guide

Termix BTD RO MIX

3.0 Safety notes

3.1 Safety Notes – general

The following instructions refer to the standard design of
substation. Special versions of substations are available on
request.

This operating manual should be read carefully before installation
and start-up of the substation. The manufacturer accepts no
liability for damage or faults that result from non-compliance with
the operating manual. Please read and follow all the instructions
carefully to prevent accidents, injury and damage to property.
Assembly, start-up and maintenance work must be performed by
qualified and authorized personnel only.
Please comply with the instructions issued by the system
manufacturer or system operator.

Corrosion protection

All pipes and components are made of stainless steel and brass.
The maximum chloride compounds of the flow medium should not
be higher than 150 mg/l.
The risk of equipment corrosion increases considerably if the
recommended level of permissible chloride compounds is
exceeded.

Energy source

The substation is designed for district heating as the primary
source of energy. However, also other energy sources can be used
where the operating conditions allow it and always are comparable
to district heating.

Application

The substation is designed to be connected to the house
installation in a frost-free room, where the temperature does not
exceed 50 °C and the humidity does not exceed 60%. Do not cover
or wall up the substation or in any other way block the entrance
to the station.

Choice of material

Choice of materials always in compliance with local legislation.

Safety valve(s)

We recommend mounting of safety valve(s), however, always in
compliance with local regulations.

Connection

The substation must be equipped with features that ensure that
the substation can be separated from all energy sources (also
power supply).

Emergency

In case of danger or accidents - fire, leaks or other dangerous
circumstances - interrupt all energy sources to the station if
possible, and seek expert help.
In case of discoloured or bad-smelling domestic hot water, close all
shut-off valves on the substation, inform the operating personnel
and call for expert help immediately.

Storage

Any storage of the substation which may be necessary prior to
installation should be in conditions which are dry and heated.

Authorized personnel only

Assembly, start-up and maintenance work must be performed by
qualified and authorized personnel only.

Please observe instructions carefully

To avoid injury to persons and damage to the device, it is absolutely
necessary to read and observe these instructions carefully.

Warning of high pressure and temperature

Be aware of the installation’s permissible system pressure and
temperature.

The maximum temperature of the flow medium in the substation is
120 °C.

The maximum operating pressure of the substation is 10 bar. PN 16
versions are available on enquiry.

The risk of persons being injured and equipment damaged increases
considerably if the recommended 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 substation has got hot surfaces, which can cause skin burns.

Please be extremely cautious in close proximity to the substation.
Power failure can result in the motor valves being stuck in open

position. The surfaces of the substation can get hot, which can cause
skin burns. The ball valves on district heating supply and return should

be closed.

Warning of transport damage

Before substation installation, please make sure that the substation

has not been damaged during transport.

IMPORTANT - Tightening of connections

Due to vibrations during transport all flange connections, screw joints
and electrical clamp and screw connections must be checked and
tightened before water is added to the system. After water has been
added to the system and the system has been put into operation,
re-tighten

ALL

connections.

Danfoss District Energy

VI.HE.F2.02 / LUK40661

DEN-GT

3

Summary of Contents for Termix BTD RO MIX

Page 1: ...ectrical connections 7 5 0 Design 8 5 1 Design 8 5 2 Schematic diagram 9 6 0 Controls 10 6 1 Heating circuit 10 6 2 DHW temperature control 13 6 3 Other 14 6 4 Maintenance 16 7 0 Troubleshooting 17 7...

Page 2: ...sensor pockets for insertion of a heat meter as well as strainer and ball valves Furthermore the substation is delivered with a mixing loop including pump controls and non return valve Heating HE The...

Page 3: ...s circumstances interrupt all energy sources to the station if possible and seek expert help In case of discoloured or bad smelling domestic hot water close all shut off valves on the substation infor...

Page 4: ...onnections 1 DHW circulation HWC 2 Domestic hot water DHW 3 Domestic cold water DCW 4 Heating HE return 5 Heating HE supply 6 District heating DH return 7 District heating DH supply Connection sizes A...

Page 5: ...ean and rinse Prior to installation all substation pipes and connections should be cleaned and rinsed Tightening Due to vibration during transport all substation connections must be checked and tighte...

Page 6: ...ating requirement increases Re thighten connections After water has been added to the system and the system has been put into operation re tighten ALL connections Pump The pump must be switched off du...

Page 7: ...Disconnection The substation must be electrically connected so that it can be disconnected for repairs Outdoor temperature sensor Outdoor sensors should be mounted so as to avoid exposure to direct su...

Page 8: ...E Hot water tank with coil 10 Circulator pump 27 Actuator HE 1A Ball valve DVGW 14 Sensor pocket energy meter 41 Fitting piece energy meter 7 Thermostatic valve DHW 20 Filling drain valve 43 Ball valv...

Page 9: ...Thermometer 41 Fitting piece energy meter 2 Single check valve 19 Surface sensor 43 Ball valve closed 7 Thermostatic valve DHW 20 Filling drain valve 50 Diff pressure controller with flow limiter 9 S...

Page 10: ...e heating circuit is controlled by the HE temperature controller 6 1 3 RAVK controller RAVK controller 25 65 C The temperature setting is as follows 1 25 C 2 35 C 3 45 C 4 55 C 5 65 C The values are i...

Page 11: ...rn the handle on the thermostatic controller to select a lower number 6 1 5 Electronic control Substations with electronic control must be set in accordance with manufacturer s instructions Where the...

Page 12: ...to setting selection if the user interface is unlocked You can change the settings as they appear The selection of the control mode depends on the system type and the allocation of pressure losses If...

Page 13: ...erature is adjusted as follows To increase temperature turn the handle on the thermostatic controller to select a higher number To decrease temperature turn the handle on the thermostatic controller t...

Page 14: ...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 It is recomme...

Page 15: ...n the system 2 Loosen nuts Loosen the nuts on the fitting piece 3 Remove fitting piece Remove the fitting piece and replace it with the energy meter Do not forget the gaskets 4 Tighten connections Aft...

Page 16: ...g of all temperatures such as DH supply temperature and DHW temperature Connections Checking all connections for leakages Safety valves The operation of the safety valves should be checked by turning...

Page 17: ...ctive or clogged non return valve Replace clean No electricity Check Wrong setting of automatic controls if any To adjust an electronic controller for DHW pls note enclosed instructions for electronic...

Page 18: ...Air pockets in the system Vent the installation thoroughly Limiting of the return temperature adjusted too low Adjust according to instructions Defective radiator valves Check replace Uneven heat dis...

Page 19: ...ell as return sensors Pump pressure too high Adjust pump to a lower level Air in system Vent the system Defective or incorrectly set radiator valve s Single pipe loop systems require special one pipe...

Page 20: ...Operating Guide Termix BTD RO MIX 20 DEN GT VI HE F2 02 LUK40661 Danfoss District Energy...

Page 21: ...Operating Guide Termix BTD RO MIX Danfoss District Energy VI HE F2 02 LUK40661 DEN GT 21...

Page 22: ...Operating Guide Termix BTD RO MIX 22 DEN GT VI HE F2 02 LUK40661 Danfoss District Energy...

Page 23: ...Operating Guide Termix BTD RO MIX 8 0 Declaration 8 1 Declaration of conformity Category 0 with electrical equipment Danfoss District Energy VI HE F2 02 LUK40661 DEN GT 23...

Page 24: ...Operating Guide Termix BTD RO MIX Produced by Danfoss A S 02 2017...

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