Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.
View this topic in a long page with up to 500 replies per page Create new topic
1 | 2 
Awesome
4794 posts

Uber Geek
+1 received by user: 1060

Trusted
Subscriber

  Reply # 1517798 22-Mar-2016 16:44
One person supports this post
Send private message

I've played around at home with an IR blaster to try and control mine, but the trouble is teaching it the IR codes. When you use a TV remote for example, it usually just send a single command based on the button you push - but most heap pump remotes send the whole current configuration set from the remote to the heat pump each time (Often why there is a second or so delay with most heat pump remote button pushes). This ensures the LCD display on the remote is in sync with the device.

 

That makes the number of possible IR combinations each remote can send go up by a lot, and it often varies model to model, manufacturer to manufacturer. So someone needs to take the time to capture all the IR code combinations and program up them up somewhere.

 

If you're lucky enough to get a blaster that knows the codes for your specific device great, but that's about the only way.





Twitter: ajobbins


6640 posts

Uber Geek
+1 received by user: 551

Trusted

  Reply # 1517849 22-Mar-2016 18:09
Send private message

Integration wise I'd look at the web options these guys have.  Not sure if there is any scope to sent SNTP type commands to web pages, or read the data back etc.

 

Thermostats themselves won't work with heatpumps.  There are very few devices that will just auto start when you turn the power on. -Dishwashers, washing machines etc all require user intervention normally once the power is on to start working. 

 

 

 

Daikin wise there are quite expensive options for interfacing with the units, assuming it's a model that's got that functionality in the first place.  Echelon do products for Daikin such as LonWorks and BACnet (has enthernet onboard) protocol interfaces, and Daikin now has a cheaper limited functionality Modbus card also.  The also have a series of basic cards, which allow for relay control of on/off and other options such as limited local mode adjustment/setpoint/on-off control etc. If you add a variable resistor to these you can set the target temperature also.  Often these aren't compatible with the residential models, so that web approach might be your best bet?


1712 posts

Uber Geek
+1 received by user: 551

Trusted
Subscriber

  Reply # 1517896 22-Mar-2016 19:03
One person supports this post
Send private message

As others have said dx heat pumps (particularly inverter units) are quite different than a central heating or heating/cooling system.

 

A central heating/cooling system has one or two inputs. Heating on and/or cooling on. It doesn't modulate (ie run from 0-100% heating or cooling) it runs either 100% heating or off.

 

In comparison a heat pump works a bit differently. Non inverter units have a compressor and a reversing valve to change from heat to cooling (or vice versa). If you have an inverter unit it modulates the speed of the inverter to provide modulation of the heating or cooling. It also provides fan speed control. Most units also have reasonably good algorithms for modulating fan speed depending on how fan you are away from setpoint.

 

You can't really use a smart thermostat for this, you need to write a high level setpoint to the unit and do some scheduling. Industry standard for this type of control is via BACnet IP but that is a whole different level to a domestic application. Otherwise it's start/stop, and fault with a fixed setpoint, but only if the unit you are using supports this, it generally requires an interface card which as Jaxson said isn't normally available for domestic units.


20 posts

Geek
+1 received by user: 5


  Reply # 1518054 22-Mar-2016 23:45
Send private message

Have you had a look at tado controllers?

 

https://www.tado.com/be-en/smart-air-conditioner

 

I got one of these when they were on kickstarter. 

 

Works in both heating and cooling mode, I haven't used much as we have moved from house with a heat pump. 

 

Not sure about whether it can be integrated into a wider home automation setup however. 


What does this tag do
947 posts

Ultimate Geek
+1 received by user: 192

Subscriber

  Reply # 1518097 23-Mar-2016 07:31
Send private message

Tado had a non-public API but is very simple to send commands to, which some Smartthings users have developed integrations for https://community.smartthings.com/t/tado-cooling-integration/30945

 

 

 

As part of their Kickstarter stretch goal they said they would add Smartthings but it doesn't seem to be an official feature yet nor showing on their development roadmap https://support.tado.com/hc/en-gb/articles/205505299-What-new-Features-are-planned-What-is-on-the-Development-Roadmap-

 

But a great device and I plan to control a ducted heatpump with Tado and maybe integrate with openHAB running on a Pine64.

 

 


6640 posts

Uber Geek
+1 received by user: 551

Trusted

  Reply # 1518137 23-Mar-2016 08:41
Send private message

Coolautomation do a range of products.

https://coolautomation.com/shop/

Daikin do their skyfi product now, but expect it's not looking for external integration options.

http://www.daikin.co.nz/skyfi

Diakins own modbus card or basic interface cards are probably the cheapest options.
Also depends on what you want to be able to control specifically as to whether their cheap offerings will be sufficient.
See here for an idea of capabilities IF your domestic unit is capable of taking the basic interface adapter card.

http://www.icglimited.co.uk/library/web/1.%20Daikin/3.%20Controller%20Manuals/Installation/KRP4A51-54%20Installation%20Manual.pdf

Sorry tapping this on a mobile in a bus...

1661 posts

Uber Geek
+1 received by user: 186

Subscriber

  Reply # 1518153 23-Mar-2016 09:01
Send private message

I grabbed one of these (http://www.daikinme.com/products/index.jsp?singleprv=KKRP01A) for my Daikin unit. I got them from an Aussie supplier but they no longer have them so not sure how easy they are to get, or if they have been superseded by the SkyFi product altogether. It wasn't cheap (about $300 from memory) and I had to install it myself (not easy!) but now I have local ethernet control of my heat pump. I was able to write a binding for openHAB (which others are now using with the SkyFi controller too I believe) which gives full integration with my home automation system.

 

Daikin seem quite proactive in this area of automation integration.


Will not stab you
228 posts

Master Geek
+1 received by user: 17

Subscriber

  Reply # 1555315 19-May-2016 08:51
Send private message

I would be keen to hear any further thoughts or experiences you have on the Daikin and openHab.

 

I about about to go with three Daikin units based on it's integration with openHab.





Recursion: See recursion.
--
“It is important not to let the perfect become the enemy of the good, even when you can agree on what perfect is. Doubly so when you can't. As unpleasant as it is to be trapped by past mistakes, you can't make any progress by being afraid of your own shadow during design.”

     --Greg Hudson, Subversion developer

1661 posts

Uber Geek
+1 received by user: 186

Subscriber

  Reply # 1555322 19-May-2016 08:58
One person supports this post
Send private message

I have underfloor heating so the Daikin is a secondary heating source. I use openHAB to monitor the temp in the living room and adjust the setpoint depending on who is home (i.e. up a few degrees when the wife is home) and what the weather is like outside (i.e. down a degree if it is sunny outside). If it gets too cool then the heat pump is fired up and warms the living room until it meets WAF levels. Only really kicks in in the middle of winter.

 

As far as integration with openHAB, it seems to work fine. The binding is pretty basic but allows you to turn on/off and set the mode/temp setpoint etc. Pretty much all I need. I don't use the temperature sensors on the Daikin as I found them fairly inaccurate, but they are reported if you need them.


Will not stab you
228 posts

Master Geek
+1 received by user: 17

Subscriber

  Reply # 1555342 19-May-2016 09:36
Send private message

Thanks for the update. What are you using as a thermostat?

 

Do you have much else connected to openHab?

 

Finally, do you do you know what happened to www.smartthingsnz.co.nz.

 

 





Recursion: See recursion.
--
“It is important not to let the perfect become the enemy of the good, even when you can agree on what perfect is. Doubly so when you can't. As unpleasant as it is to be trapped by past mistakes, you can't make any progress by being afraid of your own shadow during design.”

     --Greg Hudson, Subversion developer

1661 posts

Uber Geek
+1 received by user: 186

Subscriber

  Reply # 1555344 19-May-2016 09:39
2 people support this post
Send private message

I have an Aeon Labs MultiSensor in the living room which reports temp, humidity and light levels which are used for various rules. openHAB is the thermostat effectively, takes the temp readings from the MultiSensor and controls the Daikin heatpump as required.

 

I have a very comprehensive openHAB setup - connected to most things in my house. Taken years to build up to this stage!

 

I used to run SmartThings NZ but we welcomed the arrival of a little baby girl at the start of the year and I no longer have the time to run the business. 

 

Check out the guys at Active Automation if you are still after Z-Wave gear.

 

 

 

Good luck!


Will not stab you
228 posts

Master Geek
+1 received by user: 17

Subscriber

  Reply # 1555368 19-May-2016 09:55
Send private message

Great, thanks for the info!





Recursion: See recursion.
--
“It is important not to let the perfect become the enemy of the good, even when you can agree on what perfect is. Doubly so when you can't. As unpleasant as it is to be trapped by past mistakes, you can't make any progress by being afraid of your own shadow during design.”

     --Greg Hudson, Subversion developer

236 posts

Master Geek
+1 received by user: 17


  Reply # 1555602 19-May-2016 14:07
Send private message

I’ve got a Panasonic multi split (3x units) setup in the bedrooms that I’m looking at integrating with openHab using an Arduino and IR, I’m just not sure why when the units are programmable?

 

Currently they maintain a set temperature for a scheduled time.


1 | 2 
View this topic in a long page with up to 500 replies per page Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

N4L helping TAKA Trust bridge the digital divide for Lower Hutt students
Posted 18-Jun-2018 13:08


Winners Announced for 2018 CIO Awards
Posted 18-Jun-2018 13:03


Logitech Rally sets new standard for USB-connected video conference cameras
Posted 18-Jun-2018 09:27


Russell Stanners steps down as Vodafone NZ CEO
Posted 12-Jun-2018 09:13


Intergen recognised as 2018 Microsoft Country Partner of the Year for New Zealand
Posted 12-Jun-2018 08:00


Finalists Announced For Microsoft NZ Partner Awards
Posted 6-Jun-2018 15:12


Vocus Group and Vodafone announce joint venture to accelerate fibre innovation
Posted 5-Jun-2018 10:52


Kogan.com to launch Kogan Mobile in New Zealand
Posted 4-Jun-2018 14:34


Enable doubles fibre broadband speeds for its most popular wholesale service in Christchurch
Posted 2-Jun-2018 20:07


All or Nothing: New Zealand All Blacks arrives on Amazon Prime Video
Posted 2-Jun-2018 16:21


Innovation Grant, High Tech Awards and new USA office for Kiwi tech company SwipedOn
Posted 1-Jun-2018 20:54


Commerce Commission warns Apple for misleading consumers about their rights
Posted 30-May-2018 13:15


IBM leads Call for Code to use cloud, data, AI, blockchain for natural disaster relief
Posted 25-May-2018 14:12


New FUJIFILM X-T100 aims to do better job than smartphones
Posted 24-May-2018 20:17


Stuff takes 100% ownership of Stuff Fibre
Posted 24-May-2018 19:41



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.