Raven AccuFlow Vortex, Installation And Operation Manual

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CHAPTER 6
66 AccuFlow™ Vortex and AccuFlow™ HP+ Installation and Operation Manual
7. After cleaning and inspecting the assembly, replace the three o-ring seals. Lubricate the o-ring seals with a
non-petroleum based lubricant such as brake fluid, silicone, or liquid soap and reseat seals on the intake end of
the Vortex cooler before reassembling to ensure o-rings can be installed without damage or displacement.
NOTE: O-rings should be replaced when the unit is disassembled. Tank-mixed nitrogen stabilizers can be
corrosive to o-rings. Raven recommends injection of nitrogen stabilizers downstream of heat
exchanger components and plumbing. Unit should be inspected, disassembled, and cleaned at the
end of every season if nitrogen stabilizers are mixed in the ammonia nurse tanks. O-rings should be
replaced when the unit is disassembled.
8. Insert the inner assembly into the casing and replace the four bolts at the intake end of the Vortex cooler
assembly and torque to 210 in-lbs.
9. Apply PTFE pipe thread sealant or equivalent to pipe threads to lubricate and seal pipe joints and re-connect
external plumbing.
FIGURE 3. AccuFlow Vortex Cooler Assemblies (P/N 063-0173-663)
Bolt
Orifice Fitting
O-Ring 421
O-Ring 151
Nut
Washer
Back of Cooler
Relief Valve