Graco XM 24W626 Operation Manual page 37

NOTE: The water heater must be filled with fluid and
turned on at least 45 minutes prior to when flushing will
be required.
8. Open the flush ball valves.
9. Disengage trigger lock and trigger gun into a
grounded pail. Press gun against the grounded pail.
Use a pail lid with a hole to dispense through. Seal
around hole and gun with a rag to prevent splash
back.
10. Open flush pump air valve (CB). Pull out and slowly
turn flush pump air regulator (CG) clockwise until
flush pump begins to slowly cycle.
CB
11. Continue to dispense until all air is purged.
12. Close flush pump air valve (CB) to stop pump then
trigger gun into grounded pail to relieve pressure.
Engage gun trigger lock.
3A2776H
ti20110a
CG
TI1953a
TI19265a2
13. Close the flush ball valves on the mix manifold.
Prime Flush Pump
37