Thank you for your questions and so sorry for the late reply!
It is my understanding that the X Pump Block by Taco offers a variable speed pump on the heat source side to control temperature to the load side. To this point, if your hot water source is 140 it will likely slow the water down significantly through the heat exchanger to achieve the load side temperature you desire. This will create a large temperature difference between the supply and return of the heat source and will facilitate stratification that you desire!
I'm concerned though that the X Pump Block may be a bit more than what is needed. This is especially true if you do not need a heat exchanger. Please call when you have a moment so that we can talk this through!
Best Regards,
Cody Mack
Applications Engineer
Caleffi North America
414-238-2360
Rod,
Thank you for your questions and so sorry for the late reply!
It is my understanding that the X Pump Block by Taco offers a variable speed pump on the heat source side to control temperature to the load side. To this point, if your hot water source is 140 it will likely slow the water down significantly through the heat exchanger to achieve the load side temperature you desire. This will create a large temperature difference between the supply and return of the heat source and will facilitate stratification that you desire!
I'm concerned though that the X Pump Block may be a bit more than what is needed. This is especially true if you do not need a heat exchanger. Please call when you have a moment so that we can talk this through!
Best Regards,
Cody Mack
Applications Engineer
Caleffi North America
414-238-2360