How to setup the Danfoss HC10 hydronic controller with Danfoss Link RS_Z

Bosse Sahl shared this thanks 13 months ago

Hi,

I'm trying to setup a Danfoss HC10 hydronic controller together with 6 Danfoss Link RS-Z and virtual thermostats, but the controller keeps getting into fault mode.

I get the following fault codes, ref. the Danfoss HC10 manual:

Main LED: Red flashing ... Error mode for one or more thermostats.

1-10 Output LEDs: Green flashing ... There is an error in the chain or an indication is required.

If I switch on/off the main power on the Danfoss HC10 it is all cleared and it is operating normally again, but after a while I get the same fault indications again.

Has anyone setup this controller together with virtual thermostats or knows how to do it based on similar systems?

Comments (26)

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I would say you are the 1st to try the Danfoss HC10 controller.

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Would you be able to help me if I take some screenshots of the controller on how it is shown on the zipato box or supply you any more information?

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Well. I can try.

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In my setup the virtual thermostat had the temperatur input from the Link RS-Z and the output to the corresponding output/endpoint (Ep) of the controller. Then when I adjusted the setpoint on the virtual thermostat the Ep-setpoint followed, but there was no connection to the Ep-thermostat mode on the controller. I solved this with a rule, but I guess that is not the correct way to do it. How do I connect this heating setpoint to the thermostat mode. There must be a way to associate these parameters together.

It looks like the controller is checking on some parameters as it will run for a period of time and then stop with the fault codes given by the LED lights, error on thermostat and indication required.


Here is a link to the manual: http://manuals-backend.z-wave.info/make.php?lang=en&sku=DANEHC10

I have also attached some pictures of how the controller is displayed in my setup.

If you need any further information or settings I will take more screenshots.

Do I need to make rules for this to work or should it be enough to make the correct associations, and the correct use/setup of the virtual thermostat. I use a rule to update the setpoint from the virtual thermostat to the Link RS-Z thermostat and the opposite way, so that the set points always are the same. Can this make any problem here, and can it be solved in another way?

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Can you show me the virtual thermostat endpoints settings?

See my image below. I guess you need to set the following:

Heating input - Danfoss RS-Z

Temperature meter - Danfoss RS-Z

Heating output - Danfoss HC10 - the same corresponding heating output circuit as the danfoss RS-Z is located.

34f4a00d549702e03af046c4a3a6c700

This is the 1st step. I need to read the manual to understand more about the error codes.

Also, can you please sned me the possible configuration parameters you have for HC10? If you open the device manager and open the setting for the root level device, you should have a tab called configurations.

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Originally I did not have any device on the heating input, but I have now adjusted all virtual thermostat like the one on the attached screenshot. Also attached is the configuration tab.

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Ok. So it seems that no configuration parameters are loaded when including the device to Zipato.

Nevertheless, you have in all virtual thermostats set up inputs - so this will allow you to manually change temperature.

Looking into the errors you mentioned at the beginning of the post it seems, that the danfoss shows an error with a specific output. Can you tell me which output is flashing green? This indicates that that specific output has problems.

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All the outputs are flashing green after a while, so the controller is checking all the outputs and gets the same feedback or is missing a feedback wich gives a fault indication.

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Hmm. Interesting. So it seems that the outputs are not recognized? The manual for Danfoss states that all should be setup before connecting the HC10 to power and inlcuding. perhaps this is due to the fact, that the HC10 does a self check to test which outputs are connected at all.

I guess it is a stupis question, but still. You have all outputs connected to the appropriate valve? 12-24V? Did you connect the valves after or before connecting power to the HC10?

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I included the controller before connecting the valves, just to check the controller. All valves was connected before it was setup, but after it was included. I have connected 7 valves to the controller, and all are 24V.

Should I remove it from the system and included it again now as the valves are connected?


What about the connection between the ep-thermostat and the ep-mode on the controller, do you think this will be linked up when the controller is included with the valves connected?

I will not be able to do this the next two weeks as I am away on work, but I can give it a try when I am back home.

Do you have any other solutions to try before I do this?

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When I said all outputs give a green flash after a while, it is only the outputs wich have valves connected that gives this fault code. The ones that are not connected is in off position and does not give any feedback.

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Well, so evidently the Danfoss recognize the connected valves. I would advise to contact Danfoss for more info. Sotty Im in no further help.

You can always raise a support ticket with Zipato as well.

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Does anyone know the difference between


Danfoss HC10 and HC-Z 10


Same for the Thermostat

Danfoss link RS or RS-Z


Seems that only the Z versions are supported by the zwave alliance while both versions are z wave devices

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Hello Bosse,

Did you ever solved the error message (red led flashing) issue?


@bosse

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Hi,


No I did not solve this issue. It is still flashing red, but the controller (HC10) is regulating with the help of rules.

Do you have any helpful information?

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Hello Bosse,


Not solved but investigating why this is happening.


What did you do with rules to fix this?


My thought is that the controller enters error mode because the unit does not get periodic messages from the controller. I want to try to send every hour the set point again and see if that is a fix.


Another questions. When I add the HC10 to my system (Fibaro hc2) I see


11x setpoint + 11 corresponding on/off

2x relay for on off external device like a boiler.


Did you even found out why there are 11 groups/zones?


Thanks for your help.

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Hi,


Yes, I also belive that the HC10 is missing some feedback signal, but I have not been able to send any extra set-points/temperatures.


Here is how my HC10 is displayed when connected to my zipabox.

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I use only the Ep 2 to 8 in my system, so I do not know anything about the one with no number or as number 11 in your system.


Do you also use the link-rs thermostats? Do you think it would help to have a higher wakeup interval, like 30 min. instead of the standard 60 min.?

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Hallo Bosse,


I’m not familiar with the zipato way of sending commands but can you send the setpoint to the Danfoss HC10 with a regular interval? This seems to solve the problem.

I also use the RS-Z thermostat but also for this I wrote a script which is activated when the setpoint changes and push this change to the fibaro heating panel. This seems to work as should.

Problem with the RS-Z thermostat is that he does not have associated groups and therefore I need manual code to receive the setpoint and push this to the heating panel.

Below is what I wrote on the fibaro forum.


Br

Vincent

—//—

As a test I wrote a little lua script sending every 60 minutes the setpoint to the Danfoss HC10 corresponding zone and that seems to solve the problem.

Currently running for 24 hours without the red led of dead default_icon_smile


So my best guess would be that the Danfoss CC link (master controller) sends the setpoint on a regular base to the Danfoss HC10.

My next goal would be to write a lua script which:


a. Requests the setpoint from the heating panel

b. Sends this setpoint every 60minutes to the Danfoss HC10 corresponding zone

c. Detect when the (heating panel) setpoint changes and send this within 2 minutes to the Danfoss HC10

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Hi,


I tested setting all my Link RS-Z to a wakeup interval of 30 min. (down from 60 min. that was the standard configuration), and it looks like it helps.

No red blinking LED for about 24 hours!

The next thing to get sorted is to have the VR thermostat turning the heating on and off, as of now I'm using rules to do that.

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Hi nice to meet. i am thinking to buy a danfoss hc .. to connect to my hc2. Do i only need the hc or are the cranes/taps seperately? Any other advice?

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Dutch?

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Jep

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Hi,


The Danfoss HC10 or HC5 is only the controler, so you need to have valves separate. I am not sure how this Danfoss ddvice is supported in the HC2 controller, but I recommend checking that first.

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ok thanks.

What kind of valves do you use?


I checked. It is supported

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Are u also on the Fibaro forum?


The danfoss is not officialy supported by Fibaro as far as i know. Its supported by the zwave alliancez

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Yes i am. I read somewhere it will work with some tweaks

But also thinking about some elektronic valves and some actors to control water flow or just an on/off on the pump