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Operating Guide
Termix BTD RO MIX
1.0 Table of Contents
1.0 Table of Contents ............................................. 1
2.0 Functional description...................................... 2
3.0 Safety notes..................................................... 3
3.1
Safety Notes - general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4.0 Mounting ........................................................ 4
4.1
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4.2
Start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.3
Electrical 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
Danfoss District Energy
7.0 Troubleshooting .............................................. 17
7.1
Troubleshooting in general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.2
Troubleshooting DHW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.3
Troubleshooting HE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.4
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
8.0 Declaration...................................................... 23
8.1
Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
VI.HE.F2.02 / LUK40661
DEN-GT
1
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Summary of Contents for Danfoss Termix BTD RO MIX
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Page 1: Table Of Contents
Operating Guide Termix BTD RO MIX 1.0 Table of Contents 1.0 Table of Contents ..........1 7.0 Troubleshooting ..........17 Troubleshooting in general ........17 Troubleshooting DHW . -
Page 2: Functional Description
Designed for floor-mounting. Connections at the top of the station. Application The Termix BTD RO MIX substation is a complete solution for hot water and heating system with differential pressure control and mixing loop. The Termix BTD RO MIX is applicable for single-family houses or apartments. -
Page 3: Safety Notes
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. Authorized personnel only This operating manual should be read carefully before installation Assembly, start-up and maintenance work must be performed by and start-up of the substation. -
Page 4: Mounting
Assembly, start-up and maintenance work must be performed by primary supply to Danfoss substations. For the sake of simplicity, qualified and authorized personnel only. DH can be taken to mean the primary supply. - Page 5 Operating Guide Termix BTD RO MIX 4.1.1 Installation Mounting: Adequate space Please allow adequate space around the substation for mounting and maintenance purposes. Orientation The station must be mounted so that components, keyholes and labels are placed correctly. If you wish to mount the station differently please contact your supplier.
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Page 6: Start-Up
Operating Guide Termix BTD RO MIX 4.2 Start-up Start-up, Heating with mixing loop Start-up: Re-thighten connections 1: Pump speed After water has been added to the system and the system has been Set the pump to highest speed before start-up. -
Page 7: Electrical Connections
Operating Guide Termix BTD RO MIX 4.3 Electrical connections Before making electrical connections, please note the following: Safety notes Authorized electrician Please read the relevant parts of the safety notes. Electrical connections must be made by an authorized electrician only. -
Page 8: Design
Operating Guide Termix BTD RO MIX 5.0 Design 5.1 Design Your substation might look different than the substation shown. Design description 10 Circulator pump 27 Actuator, HE Hot water tank with coil 1A Ball valve, DVGW 14 Sensor pocket, energy meter... -
Page 9: Schematic Diagram
Operating Guide Termix BTD RO MIX 5.2 Schematic diagram Supply Supply Return Return Your substation might look different than the schematic diagram shown. Schematic description 10 Circulator pump Hot water tank with coil 24 Delivered loose with unit 14 Sensor pocket, energy meter... -
Page 10: Controls
Operating Guide Termix BTD RO MIX 6.0 Controls 6.1 Heating circuit 6.1.1 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 11 Operating Guide Termix BTD RO MIX 6.1.4 AVTB controller (30–100 °) The temperature setting is as follows: 1 = 35 °C 2 = 55 °C 3 = 75 °C 4 = 95 °C 5 = 100 °C The values are intended as a guide.
- Page 12 Operating Guide Termix BTD RO MIX 6.1.7 Circulator pump UPM3 UPM3 Pumps can be controlled in constant pressure, proportional pressure or constant speed mode defined by the means of a smart user interface. The variable speed modulating modes allow the pump to match its performance to the system requirements, helping to reduce noise when thermostatic valves are closing down.
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Page 13: Dhw Temperature Control
Operating Guide Termix BTD RO MIX 6.2 DHW temperature control DHW temperature control There are various types of 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 lime scale deposits increases significantly. -
Page 14: Other
Operating Guide Termix BTD RO MIX 6.2.3 Electric 2–way motorized valve Actuators with or without safety function are available for 3-point controls. Spring-return actuators can be used to provide safety shut-off in the event of power failure. 6.3 Other 6.3.1 Safety valve The purpose of the safety valve is to protect the substation from excessive pressure. - Page 15 Operating Guide Termix BTD RO MIX 6.3.3 Fitting piece The substation is equipped with a fitting piece for energy meter. Assembly of energy meters: 1: Close ball valves Close the ball valves on DH Supply and DH Return, if there is water on the system.
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Page 16: Maintenance
Venting Checking that the system is thoroughly vented. Inspections should be carried out minimum every two years. Spare parts can be ordered from Danfoss. Please ensure that any enquiry includes the substation serial number. Danfoss District Energy DEN-GT... -
Page 17: Troubleshooting
Operating Guide Termix BTD RO MIX 7.0 Troubleshooting 7.1 Troubleshooting in general In the event of operating disturbances, the following basic features should be checked before carrying out actual troubleshooting: • the substation is connected to electricity, Authorized personnel only •... -
Page 18: Troubleshooting He
Operating Guide Termix BTD RO MIX 7.3 Troubleshooting HE Problem Possible cause Solution Too little or no heat. Strainer clogged in DH or HE circuit Clean gate/strainer(s). (radiator circuit). The filter in the energy meter on DH circuit Clean the filter (after consulting the DH clogged. -
Page 19: Disposal
Operating Guide Termix BTD RO MIX Too high DH return temperature. Too small heating surface/too small Increase total heating surface. radiators compared to the total heating requirement of the building. Poor utilization of existing heating surface. Make sure the heat is distributed evenly Defective sensor on self-acting thermostat. - Page 20 Operating Guide Termix BTD RO MIX Danfoss District Energy DEN-GT VI.HE.F2.02 / LUK40661...
- Page 21 Operating Guide Termix BTD RO MIX Danfoss District Energy VI.HE.F2.02 / LUK40661 DEN-GT...
- Page 22 Operating Guide Termix BTD RO MIX Danfoss District Energy DEN-GT VI.HE.F2.02 / LUK40661...
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Page 23: Declaration
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... - Page 24 Operating Guide Termix BTD RO MIX Produced by Danfoss A/S © 02/2017...