# \[APP\]\[Pro\] Danfoss Air

**URL:** <https://community.homey.app/t/app-pro-danfoss-air/142497>\
**Category:** Apps\
**Tags:** app, homey-pro\
**Created:** [September 1, 2025, 9:32pm UTC](https://community.homey.app/t/app-pro-danfoss-air/142497 "2025-09-01T21:32:23Z")\
**Posts on this page:** 12\
**Page:** 1

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**Author:** ![petero-dk](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/petero-dk/32/81190_2.png) [@petero-dk](https://community.homey.app/u/petero-dk)\
**Post date:** [September 1, 2025, 9:32pm UTC](https://community.homey.app/t/app-pro-danfoss-air/142497/1 "2025-09-01T21:32:23Z")

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_Note: While the current version seems to be working, I am unable to continuously develop and fix bugs as I no longer have a Danfoss Air system._

I have begun the development of a Danfoss Air App. For now the source can be found here ( [GitHub - petero-dk/org.danfoss.air: Danfoss Air implementation for Homey · GitHub](https://github.com/petero-dk/org.danfoss.air) ).

It is possible to install the app from the store here: [Velux via KLF 200 | Homey](https://homey.app/a/org.velux.klf200)

It supports reading values, setting mode, boost bypass and more

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**Author:** ![Jason\_Holbech](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jason_holbech/32/71094_2.png) [@Jason\_Holbech](https://community.homey.app/u/Jason_Holbech)\
**Post date:** [September 16, 2025, 8:35pm UTC](https://community.homey.app/t/app-pro-danfoss-air/142497/2 "2025-09-16T20:35:09Z")

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Looking forward to test it 🙂 have really been missing this integration. What does the mode program do and will it be possible to set fan speed, bypass etc. by a flow card?

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**Author:** ![petero-dk](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/petero-dk/32/81190_2.png) [@petero-dk](https://community.homey.app/u/petero-dk)\
**Post date:** [September 19, 2025, 6:47pm UTC](https://community.homey.app/t/app-pro-danfoss-air/142497/3 "2025-09-19T18:47:07Z")

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Hi Jason,

The program mode makes the unit follow your program. You can set the program via the Danfoss Programming app: [Danfoss Air PC Tool - til slutbrugeren | Danfoss](https://www.danfoss.com/da-dk/service-and-support/downloads/dhs/danfoss-air-pc-tool-end-user/) (so from a week basis, fan speed up early monday, down late tuesday etc etc)

NOTE: If you are going to use the PC tool first disable the app or device in Homey as the Danfoss Air can only have one connection and they will interfer.

I guess the speed, bypass etc can get a flowcard.

The speed I need to think about how to do well, I am not sure I am doing the UI in a correct way, because I remove the speed control when the mode is NOT manual. I don’t think it would be a good idea to remove the flowcard (or even possible) when the mode is not manual.

Let me think about it.

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**Author:** ![Jason\_Holbech](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jason_holbech/32/71094_2.png) [@Jason\_Holbech](https://community.homey.app/u/Jason_Holbech)\
**Post date:** [September 19, 2025, 7:19pm UTC](https://community.homey.app/t/app-pro-danfoss-air/142497/4 "2025-09-19T19:19:11Z")

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Hi Peter,

Okay I would gladly give some inputs on use cases or ways to solve it. I normally use the Home Assistant integration with flow cards where it runs on demand, disables/enables boost or bypass, but I am missing the flow card which will let me set % fan speed or fan setting.

If the fan speed is possible, it sounds like I need to make an advanced flow changing mode to manual and fan speed with a delay which will enable demand if some conditions are met.

Best regards Jason

fre. 19. sep. 2025 kl. 20.57 skrev Peter via Homey Community Forum \<[notifications@athom.discoursemail.com](mailto:notifications@athom.discoursemail.com)\>:

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**Author:** ![Thomas\_Jorgensen](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/thomas_jorgensen/32/48465_2.png) [@Thomas\_Jorgensen](https://community.homey.app/u/Thomas_Jorgensen)\
**Post date:** [October 27, 2025, 2:36pm UTC](https://community.homey.app/t/app-pro-danfoss-air/142497/5 "2025-10-27T14:36:59Z")

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Hi Petero - thanks for this. Totally awesome and just what I have been waiting for 🙂

The app connects nicely to my Danfoss Air and I can see and control all that I was hoping for. However, it seems to lose connection as soon as Ieave the Homey and when I come back it doesnt work. Restarting the app solves this.

Any idea what could cause this?

Background info:  
The unit is in the summer house. When we are not there, I switch to manual mode and leave it in the lowest possible setting (1).

I dont have the PC tool connected.

The remote control is there, however, it may just have run out of battery.

The inside temperature is listed as **327.7 °C**

I use a Homey Pro from 2018.

The IP of the Air unit is static.

Let me know if there is anything I can do to help you debug.

Once again, thanks a lot for this.

Best regards,

Thomas

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**Author:** ![petero-dk](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/petero-dk/32/81190_2.png) [@petero-dk](https://community.homey.app/u/petero-dk)\
**Post date:** [November 4, 2025, 8:41pm UTC](https://community.homey.app/t/app-pro-danfoss-air/142497/6 "2025-11-04T20:41:40Z")

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Hi Thomas

Please try the test version where I have implemented retry on failure: [Danfoss Air | Homey](https://homey.app/a/org.danfoss.air/test/)

It might be because it fails to connect and then just does not get to retry.

Regards

Peter

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**Author:** ![Thomas\_Jorgensen](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/thomas_jorgensen/32/48465_2.png) [@Thomas\_Jorgensen](https://community.homey.app/u/Thomas_Jorgensen)\
**Post date:** [November 5, 2025, 9:16am UTC](https://community.homey.app/t/app-pro-danfoss-air/142497/7 "2025-11-05T09:16:32Z")

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Hi Peter

Just tried, still looses the connection.

Best regards

Thomas

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**Author:** ![petero-dk](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/petero-dk/32/81190_2.png) [@petero-dk](https://community.homey.app/u/petero-dk)\
**Post date:** [December 1, 2025, 5:30am UTC](https://community.homey.app/t/app-pro-danfoss-air/142497/8 "2025-12-01T05:30:26Z")

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I have created a new test version that fixes a memory leak: [Danfoss Air | Homey](https://homey.app/da-dk/app/org.danfoss.air/Danfoss-Air/test/)

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**Author:** ![David\_Bjornhart](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/david_bjornhart/32/120935_2.png) [@David\_Bjornhart](https://community.homey.app/u/David_Bjornhart)\
**Post date:** [December 29, 2025, 4:48pm UTC](https://community.homey.app/t/app-pro-danfoss-air/142497/9 "2025-12-29T16:48:30Z")

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Hi Peter

Just installed the app, and it works💪 would be nice to enable the boost from flows. Are you a planing to look into that in a near future?

best regards, David

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<div class="post-metadata">

**Author:** ![David\_Bjornhart](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/david_bjornhart/32/120935_2.png) [@David\_Bjornhart](https://community.homey.app/u/David_Bjornhart)\
**Post date:** [January 1, 2026, 12:34pm UTC](https://community.homey.app/t/app-pro-danfoss-air/142497/10 "2026-01-01T12:34:48Z")

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I would be very nice to have a card, but until then I used these 2 Homeyscripts:

// DanfossAir\_Boost.js

// argument: true = tænd boost, false = sluk boost

const enable = args[0] === true || String(args[0]).toLowerCase() === ‘true’;

// Danfoss enheds-ID

const deviceId = ‘ID\_FOR\_YOUR\_DANFOSS\_AIR\_DEVICE’;

// Sæt boost on/off

await Homey.devices.setCapabilityValue({

deviceId,

capabilityId: ‘onoff.boost’,

value: enable

});

return enable ? ‘ON’ : ‘OFF’;

// toggle.js – hvis Boost er OFF → ON, ellers OFF

const device = await Homey.devices.getDevice({ id: ‘ID\_FOR\_YOUR\_DANFOSS\_AIR\_DEVICE’ });

const current = device.capabilities[‘onoff.boost’];

const newState = !current;

await Homey.devices.setCapabilityValue({

deviceId: device.id,

capabilityId: ‘onoff.boost’,

value: newState

});

return `Boost toggled to ${newState ? ‘ON’ : ‘OFF’}`;

The device id is found in [Homey Developer Tools](https://tools.developer.homey.app/tools/devices) and search for your Danfoss Air device.

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<div class="post-metadata">

**Author:** ![Jason\_Holbech](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jason_holbech/32/71094_2.png) [@Jason\_Holbech](https://community.homey.app/u/Jason_Holbech)\
**Post date:** [May 6, 2026, 10:00pm UTC](https://community.homey.app/t/app-pro-danfoss-air/142497/11 "2026-05-06T22:00:36Z")

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Hi Peter,

I can’t seem to find many cards to do flows/automations? Is it possible to create more “then” cards? Only card is set fan mode. I am looking for set bypass, fan speed/percent etc.?

 ![IMG_9670](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/b/e/bee96f8c27e240b9660b99a7b52863268d8f8805.png)

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<div class="post-metadata">

**Author:** ![petero-dk](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/petero-dk/32/81190_2.png) [@petero-dk](https://community.homey.app/u/petero-dk)\
**Post date:** [June 24, 2026, 4:57am UTC](https://community.homey.app/t/app-pro-danfoss-air/142497/12 "2026-06-24T04:57:44Z")

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Unfortunately I don’t own a Danfoss Air anymore, so I cannot actively develop on this app anymore.
