How to flush an earth loop with a buried manifold – B&D Mfg Purge Cart User Manual
Page 4
How to Flush an Earth Loop with a Buried Manifold
1. Close valves (1.)
and (2.), l
ocated
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
®
fl
ow
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. Discon
n
ect
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 pipi
ng and
heat pump with
9. Any small
amounts of air
remaining in the
system will become
trapped and
isolated in the GT
®
/
QT
®
fl
ow center.
10. Check the flow
with a flow meter
tool. Fill flow center
to bottom of dip
tube elbo
w on a GT
®
flow center or to t
h
e
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