Boiler Hot water control

[christos 9]

Hello All,

OK this is my first post here hoping to get some help from you H.A gurus out there...

OK so i have setup my universal binary sensor to measure 4 temperatures.....

temp1 goes to holding tank 1

temp2 goes to holding tank 2

temp3 goes to hot water loop 1

temp4 goes to hot water loop 2

thank God the binary sensor is reading quite well at the basement.... ( no dead nodes )as well as the relay switches.... i have them there just for testing now.... no loads attached to them....... the trick i did was installing 2 relay switches at the stairs..... one up and one down

the down is connected to s2 directing the relay upstairs to turn on... ( faking a 2-way bistable switch ) so the basement and ground floor form a nice stable mesh... ( for now !! )

what i want to with the help of 2 fibaro 2x1.5KW is to turn on and off the circulation pump of each temp sensor that is attached to it.......

For example i want to switch on hot water loop pump 1 when temp3 falls below 45 degrees and switch off then it reaches 46 degrees ..... at certain times of day

and switch on holding tank1 when my hot water falls below 50 and switch off when it reaches lets say 55....

can it be done???

using heating panel i can see that i cannot set temps more than 32 degrees......

also associating each temp sensor of the universal binary sensor to each channel of the relay switch seems impossible.... or can it be done????

can anyone suggest a solution to this??

Regards

Christos

[ Added: 2013-05-23, 09:09 ]

and another thing....

how do you choose the right temperature probe when making a scene??

when i select the universal sensor i cannot find inside the green block the word value.......

there is only on off armed disarmed breached ... etc...

[ Added: 2013-05-24, 07:50 ]

Nobody??????????

[ Added: 2013-05-24, 10:13 ]

Hello All,

OK this is my first post here hoping to get some help from you H.A gurus out there...

OK so i have setup my universal binary sensor to measure 4 temperatures.....

temp1 goes to holding tank 1

temp2 goes to holding tank 2

temp3 goes to hot water loop 1

temp4 goes to hot water loop 2

thank God the binary sensor is reading quite well at the basement.... ( no dead nodes )as well as the relay switches.... i have them there just for testing now.... no loads attached to them....... the trick i did was installing 2 relay switches at the stairs..... one up and one down

the down is connected to s2 directing the relay upstairs to turn on... ( faking a 2-way bistable switch ) so the basement and ground floor form a nice stable mesh... ( for now !! )

what i want to with the help of 2 fibaro 2x1.5KW is to turn on and off the circulation pump of each temp sensor that is attached to it.......

For example i want to switch on hot water loop pump 1 when temp3 falls below 45 degrees and switch off then it reaches 46 degrees ..... at certain times of day

and switch on holding tank1 when my hot water falls below 50 and switch off when it reaches lets say 55....

can it be done???

using heating panel i can see that i cannot set temps more than 32 degrees......

also associating each temp sensor of the universal binary sensor to each channel of the relay switch seems impossible.... or can it be done????

can anyone suggest a solution to this??

Regards

Christos

[ Added: 2013-05-23, 09:09 ]

and another thing....

how do you choose the right temperature probe when making a scene??

when i select the universal sensor i cannot find inside the green block the word value.......

there is only on off armed disarmed breached ... etc...

[ Added: 2013-05-24, 07:50 ]

Nobody??????????

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[robmac 173]

Hi,

I would have a look at doing this as a lua scene as you can build more complex conditions than in the builder. If you look in the power user section lots of examples of how to use lua.

to get you going...

start your scene with this

Please login or register to see this code.

hc2 will then trigger the scene to run on change of any of the temperatures

then use 'if' statements to check the temperature of each sensor against your targets and turn the relay on or off

you can limit the sensitivity to change or put in a limit to how often the scene is triggered by using param 11 and 12 on the universal sensor

[christos 9]

Hello Robmac

Thank you for your reply

i have tried with lua script with some help from others

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My only fear now is to suddenly have dead node on the fibaro relay or the universal sensor and not being able to control neither hot water nor central heating....

c

Due to the fact that my house has 3 levels.... concrete walls concrete floors i have to be very sure that this system is stable enough to implement hot water control.....

So far with the modules i have installed i haven't even covered 10% of my house.....

Homecenter 2 has shown me that it is ok to play with lights dimmers etc etc but for mor e critical functions of the house there is a lot of work to be done.....

But i have my hopes high.....

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/emoticons/default_icon_biggrin.gif" alt=":-D" />

one thing i have noticed is that i have found my homecenter2 crashing ( i see the 4 lights on the front panel constantly on and not responding to commands from the web... ) like 4 times since yesterday.... maybe its is the last scene i have put in order to "optimise" network..... i have deleted it and i have replaced this scene with another one i have found in power users

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lets see what happens today...

[richo 4]

christos,

Here is the latest version of my "check dead" code improved with some help from other community members:

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Make sure that you set right pooling time to have as few dead nodes as possible - in my case valu 400 works the best. Also try to position HC as close to the house centre as possible.

PS

I would never control my boiler or alarm system only with Fibaro. Maybe next year

Please login or register to see this image.

/emoticons/default_icon_wink.gif" alt=";-)" /> Otherwise when system works it's a real fun

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/emoticons/default_icon_smile.gif" alt=":-)" />

[christos 9]

Thank you so much richo......

yes i thought so also that i cannot trust for now controlling my boiler with fibaro system

maybe i'll just use a relay with timer just to turn on the system and off.... the mechanical thermostats attached to the storage tanks will do their joob.... ( i'll just leave the binary sensor just for monitoring the temps!!!!

As for alarm .. no ways i'll just keep my system as it is!!

The dead nodes script looks very very interesting....

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/emoticons/default_smile.png" alt=":)" srcset="https://forum.fibaro.com/uploads/emoticons/[email protected] 2x" width="20" height="20" />

i have polling interval to 0 in configuration.... i'll change it to 400 and see what happens

cheers

christos

[nadavgo 1]

[ERROR] 17:54:36: line 18: attempt to compare string with nil

[j.nowacki 5]

nadavgo, put == instead of >=