8
Figure 5
8. The product water tubing/piping and associated fittings connecting the RO product outlet to
the equipment being serviced should be food grade material that meets NSF Standard 51 or
61 with a minimum pressure rating of 75 PSI. The size of the product water tubing/piping
should be ½” ID minimum. Distances of 100 feet or greater from the RO to the equipment
being serviced should be ¾” ID minimum. Connect the appropriate size and type of
tubing/piping and associated fittings to the RO product outlet on the MRS-200 system and
route the lines to the equipment being serviced (i.e.; espresso, coffee, etc.).
Note:
The product water will react with most metal piping, creating a corrosive condition, in
addition to imparting an objectionable taste. Plastic pipe or reinforced tubing are generally
very good choices for RO water distribution materials.
9. Locate the RO waste connection. Two waste flow control assemblies have been provided.
Based on the incoming water quality, select one of the following:
a.
Systems operating on hard water (>10 grains) –
Locate the flow control insert (red
plastic cylinder in small parts kit). Press this insert into the red ¼” OD tubing (Fig. 6).
Attach the end of the tubing with the flow control insert into the 3/8” stem x ¼” OD tube
reducing fitting installed in the RO waste connection (Fig. 8). Route the other end of the
tubing to a drain nearby, securing it
permanently.
Allow an air gap at the drain, following
any applicable local codes.
b.
Systems operating on soft water (<10 grains) –
Locate the capillary tubing assembly
in the small parts kit. Insert the capillary tubing assembly into the red ¼” OD tubing (Fig.
7).
Do not shorten the capillary tubing at this time.
Attach the end of the tubing with
the capillary tubing assembly end fitting into the 3/8” stem x ¼” OD tube reducing fitting
installed in the RO waste connection (Fig. 8). Route the other end of the tubing to a drain
nearby, securing it
temporarily
. Allow an air gap at the drain, following any applicable
local codes. During start-up, refer to the section titled “Adjusting the Recovery” for
instructions.
Booster pump
location shown is
for reference only.
See Figure 4 for
actual location.
INLET SUPPLY VALVE
BOOSTER
PUMP
INLET
3/8" OD TUBE CONNECTION
TO
DRAIN
(OPTIONAL)
1/2" NPT FEMALE THREADED
TO EQUIPMENT
PRODUCT WATER
CONNECTION
OUTLET
BY-PASS VALVE
Summary of Contents for MRS-200
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