William Fisher
New Member
The hot water recirculation line is a dedicated line and used a Laing SMT 303BSW pump and is plumbed to the bottom of the hot water tank.
I found out that the recirculation was not working because the pump was dead. I replaced it with a Laing LHB08100081 Low Flow Circulating Pump. It is supposed to the replacement for the older pump. I set the pump at 3 and started it.
Well, the issue is that the water at the faucets is now over 150 degrees. It is almost like the recirculation pump is defeating the balancing valve on the top of the tank.
The hot water heater is a Bradford White Combination Water Heating unit.
https://www.bradfordwhite.com/profe...efender-combi1-ttw-power-vent-models-c-sw2-tw
By the way, the thermostatic mixing valve on the water heater seems to be working well. When the recirculate pump is forcing hot water through it from the tank (my theory) it shuts the water flow down to almost nothing to try to stay under 140 degrees.
I have seen you write about recirculation pumps. I hope you have an idea or two..or three.
Thanks.
I found out that the recirculation was not working because the pump was dead. I replaced it with a Laing LHB08100081 Low Flow Circulating Pump. It is supposed to the replacement for the older pump. I set the pump at 3 and started it.
Well, the issue is that the water at the faucets is now over 150 degrees. It is almost like the recirculation pump is defeating the balancing valve on the top of the tank.
The hot water heater is a Bradford White Combination Water Heating unit.
https://www.bradfordwhite.com/profe...efender-combi1-ttw-power-vent-models-c-sw2-tw
By the way, the thermostatic mixing valve on the water heater seems to be working well. When the recirculate pump is forcing hot water through it from the tank (my theory) it shuts the water flow down to almost nothing to try to stay under 140 degrees.
I have seen you write about recirculation pumps. I hope you have an idea or two..or three.
Thanks.
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