Shower pump install - vent
- Thread starter iceno9
- Start date
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in this pic no it don't look like it. looks like another fused switch next to the immersion.
and no its not ok.
and no its not ok.
thats the immersion flex 
its routed in to a differrent spur unit
its routed in to a differrent spur unitSponsored Links
Guys - the pump supply is from its own fused spur but on the same wiring back to the consumer unit. i.e. the RCD at the consumer uit supplies both. Anyway nothing wrong with that, wiring is well rated? (Not that the immersion heater is EVER used)
ANyway - what about my question regarding the venting?????
ANyway - what about my question regarding the venting?????
It's a possibility usual diagrams of this type of flange show a vent
Other types of flange can avoid one
Other types of flange can avoid one
Hi Stem - your drawing shows a Surrey flange.
I have fitted a WARIX flange......the submerged pipe on the WARIX feeds the top outlet.....so i know i have this right on my installation.
However Grundfos seem to think i need a manual vent fitting.....i just cant understand why if i have this flange fitted.
Regards
Matt
I have fitted a WARIX flange......the submerged pipe on the WARIX feeds the top outlet.....so i know i have this right on my installation.
However Grundfos seem to think i need a manual vent fitting.....i just cant understand why if i have this flange fitted.
Regards
Matt
Sorry for the confusion, I think you looked at my last post before I edited it.
I'm not an expert on these flanges, but when I installed a power shower at home about 10 years ago, I looked into it at the time. From memory, I think the top diagram with the vent is a Warix? The bottom diagram is a Surrey which I've posted to show the difference and why the Warix usually has a manual vent.
From memory my understanding is that the Surrey is better for natural venting and so doesn't need a manual vent, but its drawback is that it cannot match the Warix for flow rate, so if you have a really powerful shower, or a pump that feeds two showers the Warix is the better.
I'm not an expert on these flanges, but when I installed a power shower at home about 10 years ago, I looked into it at the time. From memory, I think the top diagram with the vent is a Warix? The bottom diagram is a Surrey which I've posted to show the difference and why the Warix usually has a manual vent.
From memory my understanding is that the Surrey is better for natural venting and so doesn't need a manual vent, but its drawback is that it cannot match the Warix for flow rate, so if you have a really powerful shower, or a pump that feeds two showers the Warix is the better.
Ok - advice from Grundfos today was to run the system with pump turned off and with cold cylinder water to try to purge any trapped air. Then run with pump on and see if it fixes the problem....we will see, but im not so confident.
@Seco - Why do you think there is a problem with having a second switched/fused spur from the immersion heater main feed?
Regards
Matt
@Seco - Why do you think there is a problem with having a second switched/fused spur from the immersion heater main feed?
Regards
Matt
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