Rheem RHW42 Installation And Operation Manual page 9

TYPICAL INSTALLATION (with optional motorized water shutoff valve)
Hard Water
To Outside
Faucets
Water Softener
Valve
To
Controller
Plug-in
Power
Supply
Valve Drain
Elbow
Overflow
Drain Elbow
Salt Storage
Tank Overflow
Hose*
*Do not connect the
water softener valve drain
tubing to the salt storage
tank overflow hose.
OPTIONAL: INSTALL THE MOTORIZED WATER SHUTOFF VALVE
f you purchased the optional water shutoff valve,
I
install it in the plumbing upstream of the softener inlet.
Figure 9B shows installation with the shutoff valve
immediately upstream of the bypass valve inlet, using
one of the softener's installation adaptors and a 1"
NPT pipe nipple (not included).
The shutoff valve may also be installed in the plumbing
farther upstream of the softener, making sure that the
10 foot long cable will reach the softener's electronic
control board (See Figure 9C). The shutoff valve's
inlet and outlet are female 1" NPT. Support the weight
of the shutoff valve.
After completing plumbing, make sure that the water
softener is not powered up, and plug the cable from
the shutoff valve into the corresponding connector on
the electronic control board (See Fig. 9C or Schematic
on Page 26).
CAUTION: Do not place fingers into the motorized
shutoff valve when it is plugged into the
electronic controller.
Installation Instructions
Valve Drain
Hose*
Floor Drain
Soft
1" NPT
Water
Pipe Nipple
(not included)
Plug into Controller
Optional Motorized
Water Shutoff Valve
(not included with
water softener)
Clips Outlet
Inlet
Lubricated
O-ring
Secure Valve Drain
Hose in place over
Floor Drain
NOTE: See "Air Gap Requirements" section.
1-1/2"
air gap
Electronic Control
Board on back of
Faceplate
Plug cable into elec-
tronic control board
(power must be off)
NOTE: The shutoff valve may be operated manually
by pulling out and turning the knob on the shut-
off valve body (See Fig. 66 on Page 26),
although there is no need to do this when
installing.
9
Pipe
1" NPT Sweat
Adaptor (not
included)
1" NPT
Threaded
Adaptor
O-ring
Single
Bypass Valve
FIG. 9B
Optional Motorized
Water Shutoff Valve
FIG. 9C