Manual

How to Flush an Earth Loop with a Buried Manifold
1. Close valves (1.) and (2.), located on lines to and from the loop field. 2. Remove screw caps from tees (3.) and (4.), then connect flush cart hoses to 1“ MNT. 3. Flush and purge loop field thoroughly with flush cart.
the GT
®
/QT
®
flow
center pump(s). 7. Close valve (2.) and disconnect hose from tee (4.); screw cap back on. 8. Open valve (1.) and (2.); start system.
4. Disconnect hoses from tees (3.) and (4.) Put cap back on tee (3.). 5. Connect 1” clear hose with swivel connector to tee (4.), put hose into top of flow center. 6. Open valve (2.) and turn on flow center; flush inside piping and heat pump with
9. Any small amounts of air remaining in the system will become trapped and isolated in the GT
®
/
QT
®
flow center.
10. Check the flow with a flow meter tool. Fill flow center to bottom of dip tube elbow on a GT
®
flow center or to the top of the elbow on a QT
®
flow center.
Patent No. 5,244,037
©eg 1995-2013 B&D Mfg., Inc. all rights reserved.
4
08-2013