Pentair PENTEK GRO-2550 Manual De Instalación Y Funcionamiento página 6

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for corrosion. Corroded pipes should be replaced before continuing with
installation.
(A) Attach the drain clamp to a vertical section of the drainpipe, about 6 inches
above the trap. Make sure the opening on the drain clamp is facing towards the
drinking water faucet (see diagram on previous page).
(B) Using the fitting hole of the drain clamp as a guide, drill a 1/4-inch hole
through one side of the drainpipe.
(C) Remove the drain clamp from the drainpipe and enlarge the hole with a
3/8-inch drill bit. Use a file to remove rough edges from the drilled hole.
(D) Make sure the black rubber gasket is adhered to the inside of the drain clamp
and place the drain clamp assembly over the drilled hole. Look through the
hole and position the clamp so that the center of the clamp hole is slightly
higher (about 1/16-inch) than the center of the drilled hole. Tighten the clamp
securely.
(E) Screw the plastic compression nut onto the drain clamp until hand-tight.
5. Connecting the Faucet to the Drain
This is a gravity drain line. Any loops, kinks or sharp bends must be
CAUTION:
eliminated before proceeding. Failure to create a straight line to the
drain may result in reject water leaking through the air gap in the faucet
onto the countertop and below the faucet.
(A) Align the larger reject (3/8-inch) tubing from the faucet with the compression
nut on the drain clamp. Create as straight and smooth a path as possible with
the tubing. Do not kink tube. Cut the tubing squarely below the nut and remove
the internal and external burrs.
(B) Loosen the compression nut two complete turns. Insert the tubing into the nut
until it stops. Tighten with fingers, then tighten 1 to 2 turns with a wrench.
6. Installation of Mounting Screws
(A) If system is being installed under the kitchen sink, locate it on back or right
wall. Make sure to allow ample space for installation. To change the filter
cartridges, a minimum of 1-1⁄2 inches of clearance is required underneath the
filter housings. A minimum of 2 inches of clearance from the left side of the
unit is also required or 5 inches from the left bracket mounting screw hole.
(B) Install mounting screws at least 15 inches from cabinet floor and 7
apart. Leave a 5/16-inch space between the head of the screw and the wall to
slip bracket onto screws.
NOTE: Each connection fitting on the RO Assembly has a plug that must be
removed before inserting tubing. Push in on the collar and pull the plug
out.
7. Connecting the Faucet to the System
(A) The faucet tube from the bottom of the threaded metal tube is inserted into the
post filter. The fitting is at the top right of the RO System. Push the free end of
the tubing into the quick connect fitting.
6
7 1/2"
1 1/2" (minimum) to oor
6 • PENTEK GRO-2550 Installation and Operation Manual
-inches
1
2
7
TO FAUCET
FLOW
RESTRICTOR
15"
(minimum)
to oor
TO DRAIN
4
A
B
D
5
A
POST
CHECK
NOTE:
FILTER
VALVE
SCREW HEADS THIS SIDE UP
AUTO
SHUT OFF
VALVE
CARBON
CARTRIDGE
6"
C
E
3/8" Tube
B
TO TANK
RO
MEMBRANE
INLET WATER
BACK VIEW
TUBING CONNECTION DIAGRAM
SEDIMENT
CARTRIDGE

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