District Heating: Difference between revisions
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# Mounted Danfoss Icon on 3D printed brackets | # Mounted Danfoss Icon on 3D printed brackets | ||
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Revision as of 10:15, 2 May 2025
District Heating[edit]
Is delivered by Egedal Fjernvarme: http://www.egedalfjernvarme.dk/
change list[edit]
- Mounted Danfoss Icon on 3D printed brackets
- Changed the way the water overflow tube was routed. Now it has a free fall without any arcs that could store water in plateaus.
- Changed the pump setting to Auto Constant Flow - this is the recommended setting from Grundfoss
- Added an Ethernet connection so that Danfoss Leanhead.com can be used to see remote data
Købte dele hos LavprisEL: https://www.lavprisel.dk/customer-center/order/7686004/40680305/?utm_source=order_receipt&utm_medium=email&utm_campaign=trmails
- Added a 2-wire between my Danfoss Icon Floor Heating Controller can put the Heat Exchance Unit in "Sleep Mode" by connecting a Potential Free connection to the ECL-120 Controller
- Udeføler (ESMT) er forkert placeret. Denne skal altid placeres på bygningens koldeste facade, typisk mod nord. Føleren må ikke udsættes for morgensol. (link to description), page 13
Termix Distric Heating Unit[edit]
Termix Product Sheet: https://www.egedalfjernvarme.dk/media/16563/termix_vvx_tpv_iso_ecl_prodark_lq.pdf
Danfoss TPV regulator[edit]
https://termix.dk/produkt/termix-tpv-regulator/
Heat Exchanger Control Unit - ECL-120[edit]
Type ECL 120 Serial Number: 0032900AF2509 Quick Guide: https://termix.dk/wp-content/uploads/2023/06/Termix-Kvikguide-ECL-120-LDK36133.pdf Product Sheet: https://www.danfoss.com/en/products/dhs/electronic-controls/electronic-controllers-and-application-keys/ecl-comfort-controllers/#tab-overview Two versions of ECL-120: 100B1200 and 100B1603. https://store.danfoss.com/en/compareProduct?products=100B1200,100B1603 Application Guide 2023: https://assets.danfoss.com/documents/latest/353242/AB191586474439en-010701.pdf Technical Documents: https://www.danfoss.com/en/products/dhs/electronic-controls/electronic-controllers-and-application-keys/ecl-comfort-controllers/#tab-documents Redan Kvikguide: https://www.redan.dk/media/ie2fcjjt/redan_ecl_120_kvikguide_10_2023_final.pdf (grundindstilling) Symbolforklaring til Grafik på Leanheat side og i App: https://assets.danfoss.com/documents/latest/197150/AQ259534974284da-000402.pdf#page=11, side 11 ECL-120 and other good stuff: https://mail.google.com/mail/u/0/#inbox/WhctKLbVlktmxNtXHjDkxptKsnLPrjVfLNnkwJBQqdrgDmndkCDSDPffPtjMWWnNnZTftBB?projector=1&messagePartId=0.1 Grafik med aftapning af varmt vand: https://bentsenvvs.dk/ydelser/32-klimareguleringer/65-danfoss-leanheat-monitor/ Endnu bedre grafik for varmeveksler til varmt vand: https://www.danfoss.com/da-dk/campaigns/dhs/ecl310-varme-og-brugsvand/#tab-documents-a2601 Totalstop setting (Pumpestop): https://www.redan.dk/media/xh1d2kzl/redan_ecl_120_kvikguide.pdf
Standard setups[edit]
Idriftsættelse: https://www.youtube.com/watch?v=QEgPlYT3fL4
Opsætning ved gulvvarme
Grundfos UPM3-pump[edit]
Type: UPM3 Auto Model: 15-70 130 ZZZ
Konstant tryk" er som navnet siger en reguleringsform hvor trykket over pumpen holdes konstant, således at hvis der er stort forbrug i anlægget, så falder trykket over pumpen som så reagerer ved at skrue op for hastigheden, og modsat hvis forbruget falder. Pumpen tilpasser altså hastigheden (og dermed strømforbruget) til det aktuelle behov.
"Proportional tryk" er lidt mere "kryptisk", man kan sige at trykket ikke holdes konstant men derimod holdes lavt ved lille flow og stiger med stigende flow. Herudover er funktionen egentlig den samme som ved "konstant tryk", men det svarer altså til at man "skruer ned" for det ønskede tryk når der køres langsomt og "skruer op" for det ønskede tryk når der køres hurtigere. Egentlig kunne man selv stå ved en "konstant tryk" pumpe og "lege" "proportional tryk" styring, ved at justere det ønskede tryk op og ned i takt med flowet i anlægget.
Source: http://www.stokerforum.dk/index.php?topic=5817.0
YouTube video of 4 ways to control a pump: https://youtu.be/5tAWJeyd2Gg?si=xX5kKnIFnFlVkl3N
Online Termix ECL (over Internet)[edit]
The controller can be connected to the internet via a LAN cable Create a user at the Danfoss Leanhead Portal (link) and login: https://app.lhm.danfoss.com/
ECL120 Component Names[edit]
List of Components:
ECL120 Electronic Controller (ECL) Comfort 120 Regulator S1 Outdoor Temperature Sensor (Udetemperaturføler) S2 Indoor Reference Temperature Sensor (Seldom), Indendørs Reference temperaturføler (sjældent monteret) S3 (Mandatory) Inlet Flow Temperature. Water that runs into the floor heating or radiators, (obligatorisk) fremløbstemperaturføler S4 Return Temperature Sensor A1 Alarmudgang M1 Motorventil, 3-punktsstyring P1 Circulation Pump, Cirkulationspumpe
Danfoss ECL controller Overview[edit]
Danfoss ECL series: Intelligent temperature controllers for district heating, cooling, and domestic hot water systems, optimizing comfort and energy use.The Danfoss ECL series stands as intelligent temperature controllers specifically designed for district heating (DH), district cooling (DC), and domestic hot water systems (DHW). Central to their functionality is weather compensation, a key feature shared across the controllers. Equipped with built-in or dedicated application keys, the ECL series ensures adaptability to various district heating setups, promoting a high level of comfort and optimizing energy utilization. These controllers serve as reliable, practical solutions for achieving precise temperature control and energy efficiency in diverse heating and cooling applications
ECL 120 for 1 circuit (In a normal house connected to the District Heating Pipe system, you normally only have one circuit, as in our case) ECL 210 for 2 circuits ECL 296 for 2 circuits ECL 310 for 3 circuits Circuits means who many heating circuits it can control (including 3-point valve and heat exchanger units)
Quick Guide ECL-120: https://termix.dk/wp-content/uploads/2023/06/Termix-Kvikguide-ECL-120-LDK36133.pdf
Combined Floor Heating and Radiators[edit]
Basic Setup Heat Curve (varmekurve): 1.4 - 1.6 Minimum Temp: 38 Maximum Temp 50-60 deg. Return Limiter (returbegrænser) : 45 45-50 deg. Udkobling: 20 deg. (outdoor sensor) Cut-off point: 40 for radiator systems Advanced setup Temperature heat curve: 20 deg. Mode: Auto (In Comfort Mode Summer Mode is disabled)
Source: https://www.youtube.com/watch?v=Vihd4K9wZZE
Power Consumption[edit]
Regulator ECL Comfort 120 / 110 / 210 / 310 Forsyningsspænding: 230 V vekselstrøm - 50 Hz Strømforbrug: 5 VA Motor AMV 150 Forsyningsspænding: 230 V vekselstrøm - 50 Hz Strømforbrug: 8 VA Pumpe UPM3 AUTO, Forsyningsspænding: 230 V vekselstrøm - 50 Hz Isoleringsklasse: IP44 Strømforbrug: Max. 52 Watt
Termix ECL App[edit]
ECL Go App
The ECL Go App is to operate the ECL Comfort 120. The App is available for Android 8 and higher as well as for iOS 14 and higher. It is an Installer commissioning tool (and not an end user WiFi remote device) for controller and uses Bluetooth to connect with the ECL controller within a 1.5 meter range.
Can be found in Apple App-store: https://apps.apple.com/dk/app/termix-ecl/id1631972147?l=da
Controlling the Heat Exchange Unit from Danfoss Icon Floor Heating Controller[edit]
To allow the Floor Heating System to be able to put the Heat Exchange Unit to Sleep when no rooms/zones is asking for heat. And to stop unnecessary energy to be lost by having the pump in the Heat Exchanger and Floor Heating system. The Icon Controller can ask to stop these and put them into Energy Saving Mode. To do this the Floor Heating system pump is connected to a Relay output on the Icon controller. Another relay switch can be used to tell the Heat Exchanger to stop when no zones is asking for heat.
To make this possible you both have to wire this. I used a 2x1.5mm2 wire blue and brown as the note said.
Wiring of the Icon Floor Heating Controller[edit]
Here the installation on my Icon Floor Heating Controller:
On the upper yellow arrow you see the relay controlling the galvanically isolated output (Open / Closed). The lower yellow arrow shows the wire I connected and routed to the ECL-120 main controller.
Creating account at Danfoss Leanheat[edit]
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Making a connection between the Termix ECL-120 box and Leanheat portal[edit]
with connection to internet via LAN
Logging in on the Portal[edit]
Wiring of the ECL-102 controller[edit]
The other end is connected according to the Termix ECL-120 Quick Guide, page 13
As my controller is the Icon (Not Icon 2) then is only have one switching output which is wired with blue and brown wires as seen on the Icon output
App setup for the enabling of External Input[edit]
To setup this in the ECL-120 controller. You have to use the Danfoss ECL App with a Bluetooth connection. You have to setup the input as: "Sparedrift I overstyringstilstand afbrudt tilstand"
See below image from my App setup:
When the ECL-120 input is in open mode (no connection from the relay output from the Icon Controller) then the ECL-120 unit goes into Power Saving mode.
Verification of the setup and wiring[edit]
To verify is the settings and wiring is OK you can make sure your Icon controller signals the ECL-120 to go to Power Saving mode by lowering the heat thermostats in all rooms.
Here you can see the result and the Icon Controller is in OPEN mode. The ECL-120 turns on the "Moon" LED to show the Power Saving mode is is active. Now Termix Heat Exchanger is in saving mode.
