Troubleshooting guide

2
Plumbing Connections
Note: The ScaleGard LP Reverse Osmosis
Water Filtration System requires a minimum
50 psi inlet water pressure. If inlet water
pressure is less than 50 psi, a water booster
pump may be required. Refer to Figure 1 for
proper tubing connections.
All connections are made with "Push-In"
connectors. Refer to Figure 2 on the use of "Push-
In" plastic fittings. Use care in routing the tubing to
ensure that there are no bends or kinks.
1) Shut off water supply and water booster pump
(if applicable).
2) Insert the 1/4” x 1/4” Stem X Barb Adapter
(See Figure 1) into Inlet Water Valve. Run a
1/4” I.D. hose from the Water Supply or
Booster Pump to the Inlet Water Valve.
3) Insert one end of the 3/8" blue tubing (included)
into one end of the outlet tee on the RO system
and the other end to one side of the Water
Sample Valve Assembly. See Figure 1.
4) Insert the 3/8” x 1/4” Stem x Barb adapter into
the open 3/8” port of the sample valve
assembly. Run a 1/4” I.D. hose from the water
sample valve assembly to the inlet of the
Foodservice Equipment. See Figure 1.
5) Remove the white plug from the bottom port of
the RO Module.
6) Remove the red cap from the RO module and
moisten the o-rings with water. Insert the
cartridge into the filter head. Be sure the ears
on the cartridge line up with the spaces in the
head. Then turn the cartridge 1/4 turn to the
right.
7) Connect the 1/4” red tube from the “Brine In”
side of the permeate pump to bottom port of
the RO Module. (See Figure 3).
8) Run the separate 1/4” red tubing (included)
from the “Brine Out” port of the permeate
pump to the drain.
Side View Front View
Tank Shut-Off Valve
Inlet Water Valve
1/4” x 1/4”
Stem x Barb Adapter
Feedwater
from Incoming
Water Line or
Booster Pump
Prefilter Cartridge
P/N: 55706-10
Schrader Air Valve
Reverse Osmosis (RO)
Membrane
P/N: 55987-20
“Brine Out”
Port
1/4” Red Tubing
(To Drain)
“Brine In”
Port
Red
Tubing
(To Bottom
of RO
Membrane
Cartridge)
Outlet Tee
3/8”
Blue Tubing
Water Sample
Valve Assembly
Feedwater from Incoming
Water Line or
Booster Pump
3/8” x 1/4”
Stem x Barb Adapter
To Equipment
RO Membrane Plug
Step
2
Step
8
Step
3
Step
4
Step
5
Step
7
Figure 1