Vaillant 837/937 frost protection

[Tipper]

I don't think that's available on the 360f.

Well I think so, it would help if Vaillant expalined how their products are supposed to work and provided decent operating instructions instead of keeping it all secret!

 

[JoeMar]

Tipper

i've added this bit to my previous post.

Edit: I've just had a quick look at the specs for the VRT360 and i looks like it is possible to set time windows for the circulating pump.

Like it has already been said the 937 does a very good job at protecting it's pipes and you are worrying a bit too much about it.


Last edited by JoeMar on Wed Feb 11, 2009 10:06 am, edited 1 time in total

 

[JoeMar]

I don't think that's available on the 360f.

Well I think so, it would help if Vaillant expalined how their products are supposed to work and provided decent operating instructions instead of keeping it all secret!

yep you definitely can - see page 13-14

http://www.vaillant.co.uk/stepone2/data/downloads/a6/42/00/VRT_360.pdf

 

[Tipper]

The 'circulation pump' referred to is an external pump that you may have for an additional HW tank external to the 937. 'Heating' is the internal circ pump that pushes water round the rads.

The 360f gives only three heating (or circ pump) periods per day, HI, H2 & H3.

Can't see how you could do what you suggested.

Have a look under your 937 and you will see what I mean about potential unprotected piping. I just think for an unheated location it will be best to cover the underside of the boiler which I have done. Going to make up a little waistcoat for the Magnaclean too!

Interestingly Vaillant cover their a*ses by saying in the installatiuon instructions that a frost stat may be required locally and suggest connecting it across 3 & 4 but don't say what impact that has on the eBus management.