ᐅ Negative pressure control for air-to-air heat pump

Created on: 6 Apr 2021 18:45
Z
Zenjamino
Hello everyone,

Our black stove requires a negative pressure monitor for the chimney, which is needed because of the air-to-air heat pump heating system. The chimney sweep wrote the following to me: I don’t have a specific negative pressure monitor in mind. What’s important is that the exhaust fan automatically switches off when a negative pressure of 4 pascals is reached.

We have already planned a connection to the chimney. See the attached picture.

Now my question is, which one do I need.

The system is a Proxon from Zimmermann.
Our electrician can install it, but I am supposed to purchase the monitor.

Thanks in advance and best regards

Zenjamino

Open electrical cables from an orange wall box in the shell construction.
Z
Zenjamino
7 Apr 2021 13:37
Thank you very much.
I assume you mean the models from Huber. Which one do I need to choose then? There is one for flush mounting and one for surface mounting. Also, with or without plug-in sensor? Sorry for all the questions, but I’m a chemist and quite far from these topics 🙂 !
N
nordanney
7 Apr 2021 16:51
Zenjamino schrieb:

There is one for concealed installation and one for surface mounting.
You need to know how it will be installed. The functions are the same.

Otherwise, ask your chimney sweep which one they prefer to use.
Z
Zenjamino
28 Oct 2021 20:23
Hello, to finally close this topic. I received a certificate from the heating company confirming that the heating system is certified according to DIN XX (the ventilation switches off when there is negative pressure), so I did not have to install anything else.
R
raumhafen
8 Dec 2021 17:49
Hello Zenjamino, this topic is also very relevant to us right now, so I’m very interested.

Our chimney sweep also insists on having a negative pressure monitor. He said that no ventilation system manufacturer would certify that their system shuts off under negative pressure. That’s why we didn’t even try to ask. Our building documents also state that we need a negative pressure monitor if we plan to have a wood stove later on.

We also have a Proxon system from Zimmermann.

What exactly did you receive from them as a certificate?

Thanks in advance & best regards
Michael
Z
Zenjamino
10 Dec 2021 12:52
I had the carpenter fill out this form, and the specialist for sanitary facilities (SSF) was satisfied with it.

Commissioning protocol for a ventilation system according to DIN 1946-6 (as of 05/2020)
R
raumhafen
14 Dec 2021 19:09
Ok, thanks for the information. I don’t think this will change our chimney sweep’s opinion, but we can give it a try 🙂
Did you get the form from the chimney sweep, or where can I obtain it?
Thanks again and best regards,
Michael