Aug 10 2009 · This means in the supply line coming out of the boiler; the air/dirt separator Expansion Tank and makeup water connection should be between the Boiler and Pump. The order is: 1) Boiler(s) 2) Air Separator 3) Tee-off for Expansion Tank typically with makeup water as well 4) Main loop Circulator Pump 5) Supply header off of which loads are taken.
Use Teflon tape and tighten with a wrench. Take the discharge line that had originally been connected to your water heater and screw onto the discharge outlet of the pump. Confirm that the flow arrow on the pump housing is pointing away from the hot water heater. Double check that all connections are a
There are two main components to an effective hot water recirculating system: the recirculating pump installed on the hot water discharge line of your homes water heater and the sensor valve installed on the supply lines of a faucet at the farthest distance from the water heater.