Tue, 19 Dec 2023 08:22:16 +0000 http://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17866&Focus=301959#Comment_301959 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17866&Focus=301959#Comment_301959 Mon, 12 Jun 2023 11:39:41 +0100 wholaa
I have a Vent-Axia MVHR and although I have grown to love MVHR I have noticed it does have tendency to run continuously on boast on damp rainy days like today. has anyone else noticed this and thought of possible solutions given that they can be loud on boost? Do more expensive brands avoid this some how? I am not sure if the damp air is through open windows being summer time or via damp intake air from outside.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17866&Focus=301960#Comment_301960 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17866&Focus=301960#Comment_301960 Mon, 12 Jun 2023 13:16:38 +0100 djh
edit: to add - We keep our windows closed during summer days, when it is warmer outdoors than in the house, and then we open them at night when it is cooler outside.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17866&Focus=301986#Comment_301986 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17866&Focus=301986#Comment_301986 Tue, 13 Jun 2023 11:36:06 +0100 Simon Still
I'm pretty sure my unit also has an inbuilt humidistat but I can't remember if I deactivated it or not but it doesn't seem to give me issues (or the controls from the smart home system over ride it). Ideally you could do with a switch to change the settings temporarily but you might have to do it permeantely -
https://www.vent-axia.com/sites/default/files/439817_ad.pdf

The manual says

Internal Humidity Sensor Screen (if fitted)
The Humidity Sensor screen enables you to switch the Sensor On and adjust the trigger point between 50% and 90%. (default setting 70%).

Humidity Rapid-Rise (RH RR) Overrun
The Sentinel kinetic does not just look for relative humidity levels above a set point, which can be unreliable in products that extract from multiple rooms, but it also looks for rapid increase in relative humidity typically generated by such activities as showering or cooking. This feature allows an overrun of up to 60
minutes from a “Rapid rise” of humidity.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17866&Focus=301989#Comment_301989 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17866&Focus=301989#Comment_301989 Tue, 13 Jun 2023 11:52:03 +0100 RobL I can imagine it's not obvious what to do on a hot humid day - the faster you run the unit, the more humidity it will raise the house to.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17866&Focus=301994#Comment_301994 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17866&Focus=301994#Comment_301994 Tue, 13 Jun 2023 12:51:06 +0100 djh Posted By: RobLI can imagine it's not obvious what to do on a hot humid day - the faster you run the unit, the more humidity it will raise the house to.I imagine it's something like the same logic as a summer bypass. The system clearly needs two humidity sensors, one sensing internal humidity and the other external humidity, as well as temperature sensors. Then it can calculate the absolute or specific humidity (not sure which) and decide whether it should be increasing or decreasing fan speed. And two control settings - an upper limit and a lower one. But I doubt most units are kitted out that way.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17866&Focus=301996#Comment_301996 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17866&Focus=301996#Comment_301996 Tue, 13 Jun 2023 15:55:59 +0100 wholaa http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17866&Focus=301997#Comment_301997 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17866&Focus=301997#Comment_301997 Tue, 13 Jun 2023 18:39:28 +0100 DamonHD
Rgds

Damon]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17866&Focus=302054#Comment_302054 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17866&Focus=302054#Comment_302054 Tue, 20 Jun 2023 13:36:05 +0100 CWatters
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https://www.vent-axia.com/sites/default/files/407159.pdf

Sentinel
Kinetic 200ZP
Kinetic 200ZPH
Kinetic 200ZPM

Internal Humidity Sensor Screen (if fitted)
The Humidity Sensor screen enables you to
switch the Sensor On and adjust the trigger point
between 60% and 70 %. (default setting 70%).]]>