Pentair PRF-RO, Installation And Maintenance Manual, Page: 8 / 16

Recommended Placement Positions
The RO assembly should be positioned in one of two ways.
The first position is with the unit standing upright using the support
leg with the sumps horizontal. The tubing is directed to provide the
best fit.
The second position, sets the unit on end so the sumps are pointing
up. The tubing is directed upward and the locking bar is down to lock
the tubing connections. See Figure 9 System Positions.
NOTE: Ensure that the support leg is installed on the sumps.
Connection Lubrication
Connections with O-rings must be properly lubricated. The following
instructions describe the method and locations for lubrication.
Six packets of silicone lube are supplied. One packet should be
completely used to lubricate the O-ring contact surfaces in the 3
manifold ports and 2 RO membrane locations (Figure 10). Follow
Figure 11 and lubricate the filter seat and the flat surface below the
threads for the 3 sump locations. Use a complete packet of silicone
for each sump location.
NOTE: To properly lubricate the O-ring contact area, a film of clean
silicone grease is applied. The film should cover all of the
surface area that the O-ring will slide over and seal with. Do
not use grease containing petroleum products.
INSTALLATION cont.
Figure 9 System Positions
First Position
Locking Bar
Second Position
Support Leg
Figure 11
Figure 10
8