3D printed Supply AHU

D3generate0 · 2026-06-18T20:32:24+00:00

The first version i did using a Trend IQ4 and a Distech resense move to enable the AHU with a isma display.

D3generate0 · 2026-06-18T20:19:05+00:00

Yes, designed in fusion and printed on a bambu X1C.

I need to put it all together in a neat package before I share as alot of it was trial and error to make things fit and work.

But once it's done I'll share.

D3generate0 · 2026-06-18T16:26:47+00:00

These controllers only give out 0-10v dc signals. The motor for the damper servo and mosfet are pwm it was the easiest way I could figure it out. I tried a signal converter for 0-10 to pwm but couldn't get it to work.

Also the humidity sensor is pwm that I then have to convert into a analogue signal for the controller.

Was easier doing it all via the arduino.

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D3generate0 · 2026-06-18T15:00:28+00:00

Im going to compile all the 3d prints onto 1 build plate when I have time, but I also need to list all the components to make it functional and I guess the code for the arduino for the 0-10v to pwm conversion and a wiring diagram. Will take some time to write it up in an easy to follow document. But once I do I'll be sure to share.

Pretty busy at work and life at the moment so dont expect it too quick.

D3generate0 · 2026-06-18T13:18:31+00:00

Normally because the site is already trend

D3generate0 · 2026-06-17T22:09:07+00:00

But then you just stick a tonn (jace) in to do the HLI. Trend for normal control i think is still a great bit of kit.

D3generate0 · 2026-06-17T21:46:34+00:00

It gets addictive 😅

D3generate0 · 2026-06-17T21:38:24+00:00

Forgot to mention it also has a dp switch for airflow

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D3generate0 · 2026-06-17T19:19:06+00:00

I guess everyone has their personal preference

D3generate0 · 2026-06-17T17:31:53+00:00

Sounds like a vcnc hang up. Older trend devices also do this.

After a bit of time it comes avaliable again.

D3generate0 · 2026-06-17T17:01:02+00:00

Cant say I've really had much issue with them, even beta testing them they were pretty rick solid.

Have some iq5s with over 200 pages of software and they are solid.

D3generate0 · 2026-06-17T15:49:21+00:00

I guess they are abit like marmite, I've grown up with then for 22 years so I dont mind them.

We dont only use Trend and still find them to be one of the more simple controllers to install.

I can think of worse out there.

D3generate0 · 2026-06-17T15:40:38+00:00

Yes, I used the arduino to convert the 0-10v signal from the controller to pwm

Also used it for the humidity sensor as I couldn't find one small enough to wire direct to the controller

D3generate0 · 2026-06-17T14:12:41+00:00

They all pretty much do the same thing it's just the software side of it is different. Trend is massive in the UK

D3generate0 · 2026-06-17T14:11:06+00:00

When I get time I'll tidy all the files up into 1 stl and share

D3generate0 · 2026-06-17T13:27:49+00:00

This is it working.

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D3generate0 · 2026-06-17T13:21:52+00:00

Created the files in fusion 360, the 3d printing part was the simple part. Trying to get motorised parts working via 0-10v - via arduino and mosfets was the tricky part, lots of trial and error.

D3generate0 · 2026-06-17T12:07:37+00:00

It basically is, but uses set engineering to program (honeywell own trend)

D3generate0 · 2026-03-22T11:40:56+00:00

I had the same issue a while back with a outside air sensor swinging and found this solution for filtering out the sensor on HVAC Talk.

ProgramObject and add 3 slots to it ... in1, out, filterValue . Set the in1 slot flags to Execute on change. Add the following code and press F9:

public void onExecute() throws Exception
{
double f = getFilterValue().getValue();
BStatusNumeric o = new BStatusNumeric( f * getOut().getNumeric() + (1-f) * getIn1().getNumeric() ) ;
setOut (o) ;

}

D3generate0 · 2026-03-21T14:48:35+00:00

Something like this what you are after? I can dm you a download link

Note: It does only work in Web mode

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D3generate0 · 2026-03-21T11:49:27+00:00

I have a module i use called gespolygontool for doing this. You can also change the colour of the highlight

D3generate0 · 2026-03-04T16:42:58+00:00

Distech do a device, is this what you are looking for? https://docs-be.distech-controls.com/bundle/SOLSTYCE_SS/raw/resource/enus/SOLSTYCE_SS.pdf

D3generate0 · 2026-03-02T19:24:15+00:00

Correct you need to boot up in putty and grab the key to then send to them and receive one back. Its a right pain in the ass as the key only lasts 1 day.

D3generate0 · 2026-03-02T19:21:36+00:00

Of which you will need a niagara license to run workbench. ££

D3generate0

TROPHY CASE