Technical data

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SYSTEM IN OPERATION
FILLING THE SYSTEM
V. FINISH FILLING
A. Water has turned from milky to clear.
B. NO air bubbles are seen.
C. Close the discharge ball valve.
D. Keep pumping until pressure on the guage is 15-20 Lbs.
E. Turn off the fi ll valve.
F. Shut off the pump, the system should be free of air and at pressure.
VI. PRESSURE MAINTENANCE SYSTEMS FOR CLOSED LOOP SYSTEMS (Recommended)
A. Limited volume and unlimited volume
1. Use an Axiom system feeder for a pressure maintance system that has a limited reserve.
Limits any leak to 3 gallons.
2. Household water auto fi ll system. This is attached to the house water supply and has unlimited
water fl ow. It has a pressure maintance valve and a backfl ow preventer.
3. Must be either treated city water or a polypropylene glycol mix.
4. Either systems can be attached to the upper right fi tting on the Flex-Pro panel for pressure maintance.