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5
PLUMBING
Cut 1/4” dia. tubing lines to fit your installation.
Ensure all cuts are evenly made with no nicks,
scratches or rough spots on the tube end.
Longer tubing lengths – nylon or copper – may
also be used (not provided). Ends of tubing
must be round and free of burrs and scratches
to seal properly.
Install 3/8” x 1/4” adapter elbow into blue outlet
port.
Install 3/8” dia. yellow tube between yellow inlet
port and storage tank valve (Models 50045947-
001 & 50045947-002). Insert plug from parts
bag in yellow port for Model 50045947-003.
Locate drain line assembly (1/4” dia. red tubes
assembled to flow control coupling). Install 1 ft.
long end of 1/4” dia. red drain line into red port
in the RO system. Route the longer 1/4” dia.
red drain line to a drain. Note that the coupling
contains a flow control that is critical to the
function of the RO system. Make sure the
drain line assembly is installed correctly.
Push tubing completely into applicable fitting by
pushing past initial resistance and then applying
light pulling force to ensure a tight fit.
– To remove tube from connection, depress
collar and pull tubing.
FIG. 4
Water tube connections to the water supply, fil-
ter and steam humidifier must be checked for
leaks after installation and a short period of
operation.
Tube Fully Engaged with Fitting
Collar O-Ring
Tubing
Collar (depress to
remove tubing)
Tubing
FIG. 5
Storage Tank
Open
Closed
1/4” White
Tubing
3/8” x 1/4”
Adapter Elbow
Cold Water
Supply
1/4” White
Tubing
3/8”
Yellow Tubing
Drain Flow
Control
Drain Points for Reject Water
Follow local codes for proper installation
Refer to additional drain requirements in steam
humidifier manual when coupling RO drain and
humidifier drain
Standpipe
Sump
Laundry
Tub
Floor
Drain
air gap
air
gap
air
gap
air
gap
RO System with
Storage Tank
(Model 50045947-001)
#1 #2 #3
To Steam
Humidifier
Shutoff
Control Valve
1/4”
Red Tubing
Floor
Drain
Condensate
Pump
air
gap
FIG. 3