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Manual 2100-518B
Page 23 of 30
FLUSHING UNIT ONLY (ALSO USED
WHEN REPLACING UNIT, COAXIAL
COIL, HOSE KIT OR PUMP)
1. Connect unit to ow center.
2. Rotate 3-way valve to position shown in Figure 9C.
3. Remove access port caps and plugs and connect either
ush cart or Bard DORGHMT tting (service only -
not intended for primary ush).
4. Attach garden hose to domestic water supply.
5. Purge air from garden hose before connecting to port
in ow center.
6. Attach another length of garden hose to the other port
in the ow center, leading to drain.
7. Flush ow center and unit with domestic water until
air is removed.
8. Close drain valve on discharge hose and pressurize
system to domestic water pressure (approx. 4-75
psig).
9. Remove bleed screw(s) from ow center pump
motors to purge air and replace screw(s).
10. Close valve on supply hose to trap pressure in the
system.
11. Rotate 3-way valves back to normal operating
position (see Figure 9D).
12. Remove water supply hose from ow center and
replace access port caps/plugs.
FLUSHING & CHARGING (CONTINUED)