I would greatly appreciate design advice.
I have installed pipe and a circulating pump for a 100 long house with the water heater and pump located at one end. 2 Bathrooms located 50, and 2 bathrooms 90 from tank and pump. I have installed a 4 conductor 22 gage wire from the baths to the pump in anticipation of remote pump control. Pump and circulating function work well, controlled by a manual 120 v. switch. Originally thought I would circulate the water continuously in the insulated lines, but I believe that will cause significant energy consumption (additional heat loss), so have decided to install a demand system where the pump would be remotely actuated at the baths in order to eliminate the cold water run out. Takes about 8 minutes for pump to supply to far end of house.
Pump specs:115v., .37A, 1/100 hp
I want to install 5 low voltage remote momentary push button switches( with led to indicate pump operation), which would activate a timed (latched?) relay for approximately 10 minutes, then auto turn off, using the preinstalled 4 conductor 22 gage wire.
The relay I think I need:
http://www.ebay.com/itm/271085004219?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
The switches I think I need:
http://www.ebay.com/itm/251320034864?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
The Power supply I think I need:
http://www.ebay.com/itm/121191034179?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
I am confused about the exact wiring in order to make this a latching relay.
I suppose its ok to mix 120v. ac with 12 v dc through the relay?
In the spec sheet for the relay they suggest the installation of a second relay, as found on page 10 of the spec sheet:
http://www.ia.omron.com/data_pdf/data_sheet/h3y_ds_e_4_2_csm92.pdf
Do not connect the H3Y as shown in the following circuit diagram on
the right hand side, otherwise the H3Ys internal contacts different
from each other in polarity may become short-circuited.
Use the following safety circuit when building a self-holding or selfresetting
circuit with the H3Y and an auxiliary relay, such as an MY
Relay, in combination.
Am I on the right track? Right equipment?
Will the timer open the relay, breaking the 12 v jump across the switches, at the end of the set time (approx 10 min)
Do I need to install a second relay, and why?
Thanks in advance for wading through this, I will much appreciate your advice.
I have installed pipe and a circulating pump for a 100 long house with the water heater and pump located at one end. 2 Bathrooms located 50, and 2 bathrooms 90 from tank and pump. I have installed a 4 conductor 22 gage wire from the baths to the pump in anticipation of remote pump control. Pump and circulating function work well, controlled by a manual 120 v. switch. Originally thought I would circulate the water continuously in the insulated lines, but I believe that will cause significant energy consumption (additional heat loss), so have decided to install a demand system where the pump would be remotely actuated at the baths in order to eliminate the cold water run out. Takes about 8 minutes for pump to supply to far end of house.
Pump specs:115v., .37A, 1/100 hp
I want to install 5 low voltage remote momentary push button switches( with led to indicate pump operation), which would activate a timed (latched?) relay for approximately 10 minutes, then auto turn off, using the preinstalled 4 conductor 22 gage wire.
The relay I think I need:
http://www.ebay.com/itm/271085004219?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
The switches I think I need:
http://www.ebay.com/itm/251320034864?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
The Power supply I think I need:
http://www.ebay.com/itm/121191034179?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
I am confused about the exact wiring in order to make this a latching relay.
I suppose its ok to mix 120v. ac with 12 v dc through the relay?
In the spec sheet for the relay they suggest the installation of a second relay, as found on page 10 of the spec sheet:
http://www.ia.omron.com/data_pdf/data_sheet/h3y_ds_e_4_2_csm92.pdf
Do not connect the H3Y as shown in the following circuit diagram on
the right hand side, otherwise the H3Ys internal contacts different
from each other in polarity may become short-circuited.
Use the following safety circuit when building a self-holding or selfresetting
circuit with the H3Y and an auxiliary relay, such as an MY
Relay, in combination.
Am I on the right track? Right equipment?
Will the timer open the relay, breaking the 12 v jump across the switches, at the end of the set time (approx 10 min)
Do I need to install a second relay, and why?
Thanks in advance for wading through this, I will much appreciate your advice.