Install replacement non-pressurized flow center, including hose connection kit FC2-GLNP Reuse all existing antifreeze isolated in the ground loops during the repair service and top off the new reservoir with 4 gallons of new cryotech 100 resulting in a 10%-15% mixture with roughly 22-24° freeze protection. Water furnace equipment usually requires a 15 to 20° freeze protection antifreeze on closed loop systems. If equipment intermittently or repeatedly locks out on freeze protection a antifreeze flushing cart rejuvenation service may be required to achieve 15° freeze protection with propylene glycol Flush and bleed out all air pockets Run test cooling mode
