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Hi Guys,
I'm planning a disabled bathroom for an incontinent child with severe problems. The client has specified secondary circulation as it's 20m from the unvented cylinder and they don't want to have to wait for the hot to arrive. Rather than put it on a single channel timer and have it circulate every half hour (and cool the cylinder) I was thinking of having a PIR in the doorway of the bathroom to switch on the pump for a couple of minutes. I would need a timer that could be switched on by the PIR to run the pump for 5 mins maximum. I can't seem to get an answer out of my sparky friends on how to do this. Has anyone here done it?
I'm planning a disabled bathroom for an incontinent child with severe problems. The client has specified secondary circulation as it's 20m from the unvented cylinder and they don't want to have to wait for the hot to arrive. Rather than put it on a single channel timer and have it circulate every half hour (and cool the cylinder) I was thinking of having a PIR in the doorway of the bathroom to switch on the pump for a couple of minutes. I would need a timer that could be switched on by the PIR to run the pump for 5 mins maximum. I can't seem to get an answer out of my sparky friends on how to do this. Has anyone here done it?