Table of Contents
Advertisement
Quick Links
Operating Guide
Termix VMTD-F MIX-I
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
Extras . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.5
Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.0 Troubleshooting .............................................. 18
7.1
Troubleshooting in general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.2
Troubleshooting DHW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.3
Troubleshooting HE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.4
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
8.0 Declaration...................................................... 23
8.1
Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
© Danfoss | 2024.01
AQ110886479343en-010601 / LUK4025001 | 1
Advertisement
Table of Contents
Troubleshooting
Subscribe to Our Youtube Channel
Related Manuals for Danfoss Termix VMTD-F MIX-I
Summary of Contents for Danfoss Termix VMTD-F MIX-I
-
Page 1: Table Of Contents
Operating Guide Termix VMTD-F MIX-I 1.0 Table of Contents 1.0 Table of Contents ..........1 2.0 Functional description........2 3.0 Safety notes............. 3 Safety Notes – general ..........3 4.0 Mounting ............ -
Page 2: Functional Description
Application The Termix VMTD-F MIX-I is a complete solution with built-in water heater and heating system with differential pressure control and mixing loop. The Termix VMTD-F MIX-I is applicable for for single-family houses and for decentralized systems in multi-family houses. -
Page 3: Safety Notes
REACH All Danfoss A/S products fulfill the requirements in REACH. One of the obligations in REACH is to inform customers about presence of Candidate list substances if any, we hereby inform... -
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 VMTD-F MIX-I 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.
-
Page 6: Start-Up
Operating Guide Termix VMTD-F MIX-I 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. put into operation, re-tighten ALL ALL connections. -
Page 7: Electrical Connections
Operating Guide Termix VMTD-F MIX-I 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. 230 V Local standards The substation must be connected to 230 V AC and earth. -
Page 8: Design
Operating Guide Termix VMTD-F MIX-I 5.0 Design 5.1 Design Your substation might look different than the substation shown. Design description Heat exchanger, DHW Sensor pocket, energy meter Circulation connection Differential pressure controller 41A Fitting piece, cold water mains Single check valve... -
Page 9: Schematic Diagram
Operating Guide Termix VMTD-F MIX-I 5.2 Schematic diagram Supply Supply Return Return Your substation might look different than the schematic diagram shown. Schematic description B Heat exchanger, DHW 10 Circulator pump Connection closed 14 Sensor pocket, energy meter Single check valve... -
Page 10: Controls
Operating Guide Termix VMTD-F MIX-I 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 VMTD-F MIX-I 6.1.4 TP7000 TP7000 electronic 7 day programmable room thermostat. Signals from the room thermostat can be used to control zone valves. 6.1.5 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.
- Page 12 Operating Guide Termix VMTD-F MIX-I 6.1.6 Grundfos UPM3 AUTO instructions Control mode Each push on the button switches to the next program setting. The choice of operation mode depends on the type of heating system and the pressure loss in the system.
-
Page 13: Dhw Temperature Control
Operating Guide Termix VMTD-F MIX-I 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 VMTD-F MIX-I 6.3 Other 6.3.1 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 15 Operating Guide Termix VMTD-F MIX-I 6.3.4 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.
-
Page 16: Extras
Operating Guide Termix VMTD-F MIX-I 6.4 Extras 6.4.1 Circulation pipe The circulation pipe set is mounted directly on the controller. The set includes circulation pipe, single check valve and fitting. When mounting the hot water circulation directly on the controller the hot water circulation temperature will be equal to the idle temperature. -
Page 17: 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. AQ110886479343en-010601 / LUK4025001 © Danfoss | 2024.01 | 17... -
Page 18: Troubleshooting
Operating Guide Termix VMTD-F MIX-I 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 19: Troubleshooting Dhw
Operating Guide Termix VMTD-F MIX-I 7.2 Troubleshooting DHW Problem Possible cause Solution Too little or no DHW. Strainer in supply or return line clogged. Clean strainer(s). DHW circulation pump out of order or with Check circulation pump. too low setting. -
Page 20: Troubleshooting He
Operating Guide Termix VMTD-F MIX-I 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 21 Operating Guide Termix VMTD-F MIX-I 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 22: Disposal
Operating Guide Termix VMTD-F MIX-I 7.4 Disposal Disposal note This symbol on the product indicates that it may not be disposed of as household waste.. It must be handed over to the applicable take-back scheme for the recycling of electrical and electronic equipment. -
Page 23: Declaration
Operating Guide Termix VMTD-F MIX-I 8.0 Declaration 8.1 Declaration of conformity AQ110886479343en-010601 / LUK4025001 © Danfoss | 2024.01 | 23... - Page 24 Operating Guide Termix VMTD-F MIX-I AQ110886479343en-010601 / LUK4025001 24| © Danfoss | 2024.01...
Need help?
Do you have a question about the Termix VMTD-F MIX-I and is the answer not in the manual?
Questions and answers