Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[lordielordie]

.
.
.

Constantly running a hot water circ. pump, creates a nice radiator in the crawl space under the house where my money evaporates into space..
I was using a timer to activate the pump only in a wake hours, but even that is also wasteful.

after searching around I came the conclusion that the most effective solution is to install motion/occupancy detectors in the 2 bathrooms, and have those activate the pump when someone steps in  the either bathroom.

I will need to make sure that the day/night is not in use, and that there is a delay of a few minutes once the detector no longer detects motion (before it sends OFF code)..


Can I have two wireless detectors, and one Wireless Transceiver operating one pump?
What parts and pieces would you folks recommend I use?

Thank you in advance,

Arie

[dave w]

This is a minimal system, you might want to go to the X10.com "porno" site to read more about the suggestions.

Active Eye or Eagle Eye motion sensor - Both have adjustable time delays, the EagleEye is programmable in steps, the ActiveEye has a small screwdriver adjustment for more precision.

Apparently X10 no longer offers the RR501 transceiver so you will have to go with the TM751 transceiver. The transceiver receivers the radio signal from the xxxxxEye and couples the commands on to the powerline.  The RR501 is older than the TM751 but actually had more features.

Appliance module (AM466) to control the pump (assuming it is 120V)

Also I would get a Palm Pad or a Slimline switch. They are remote controls that you can use to manually force the pump on or off.

[lordielordie]

This is a minimal system, you might want to go to the X10.com "porno" site to read more about the suggestions.

Active Eye or Eagle Eye motion sensor - Both have adjustable time delays, the EagleEye is programmable in steps, the ActiveEye has a small screwdriver adjustment for more precision.

Apparently X10 no longer offers the RR501 transceiver so you will have to go with the TM751 transceiver. The transceiver receivers the radio signal from the xxxxxEye and couples the commands on to the powerline.  The RR501 is older than the TM751 but actually had more features.

Appliance module (AM466) to control the pump (assuming it is 120V)

Also I would get a Palm Pad or a Slimline switch. They are remote controls that you can use to manually force the pump on or off.

I tried to navigate the x10.com site, but the Porn is a bit unsettling.. I feel like I will get a virus or some malware from that site..
I found other places that sell those for better prices, so if I get the following:

• Two MS16A ActiveEye
• one RR501 Transceiver
• one AM466 appliance module

Should this be ok?


I was wondering what would happen if:
someone goes in to bathroom 1 and activates the pump (ON),
a few minutes later some one goes into bathroom 2 and activates the pump again (ON),
then bathroom 1 gets empty and it deactivates the pump (OFF), while bathroom 2 is still occupied.. will the pump still be running??

[Brian H]

No the off from the bathroom 1 will turn off the pump.

[JeffVolp]

We use a Grundfos pump to circulate hot water during the day so all faucets have virtually instant hot water.  In addition to the bathrooms, hot water is also used in the kitchen and laundry basin.  I often go to a sink just to wash my hands, and don't want to wait a minute for the pump to send hot water to the far end of the house.  Here we have two hot water loops, and it takes 70 seconds for the pump to refresh hot water in both lines.  I totally insulated the pipes with foam insulation so there is little loss.  Then I run the pump for 70 seconds 3 times an hour from 6:30AM to 11:30 PM.  That guarantees hot water (not lukewarm water) at every faucet during the daytime.  Since this turns on and off so frequently, I use a lamp module rather than the CLACK - CLACK appliance module.  It has been running fine this way almost 6 years now.  Note, that you need a lamp module that just does ON/OFF, not the ramp-up/ramp-down that the new lamp modules do.

Jeff