SECTION 3-3
INSTALLATION
FLOWMAX RO MANUAL REV: B 05/1999
USFilter
United States Filter Corporation
5.
Level the RO unit by installing shim stock under the frame near the frame tie down holes.
6.
Install the anchor bolts and secure the frame to the anchor bolts using flat washers, lock
washers, and nuts.
Do not use the RO unit to support external piping. All plumbing runs should
be supported per manufacturers’ recommendations and local codes.
7.
Install the feed water plumbing line. The plumbing runs should
never be smaller than the actual RO inlet pipe size, and may need to be larger for pipe
runs over 50 feet.
NOTE:
The plumbing materials should be of non-corroding materials (PVC, SST, etc.) Use of
this material will reduce the tendency to foul the membranes from metal precipitation.
8.
Install the product water plumbing line. For the Auto Flush feature, two automatic valves
should be installed in this line near the storage tank. (See P&ID) This will allow the RO
unit to rinse the piping to drain during start-up.
NOTE:
If this feature is used, install a pressure relief valve between the RO and the automatic
valves. Also it is recommended to install a manual divert to drain line for use during
cleaning cycles.
9.
Install the reject, or reject line directly to an open drain.
NOTE:
As a general rule, no valves should be installed in this line. If necessary, install a relief
valve set at no greater than 5 PSIG. The valve should be directed to a visible drain so
relief is obvious.
If the reject drain is below the level of the RO unit, install a vacuum breaker valve or
open pipe leg on the reject line. This will prevent siphoning of all water out of the RO
unit during shutdown.
10.
Install a tank level sensing device with an adjustable deadband. We recommend a
pressure switch with inches of water scale. The deadband will prevent frequent start/stop
action of the system during run time.
11.
Connect a regulated air supply to the inlet port of the solenoid on the bottom of the
Control Panel. The air pressure needs to be 80 to 100 PSIG.
The plumbing installation should now be complete. Check the plumbing to ensure all joints are
properly connected and supported.
Electrical Installation
WARNING
