Installation, continued – Powers 447 Infrared HydroGuard ESP Infrared Sensor Shower User Manual
Page 2

TI447S
Page 2
The solenoid valve should be located as close as possible to the
showerhead it is servicing. Access to the valve must be provided
for maintenance and servicing.
Suggested height for mounting of the sensor for adult men and
women is approximately 41”… adjustments to height should be
made for adolescents and children. Measure the proper height
from the floor… mark shower sensor location with a pencil. Using
a 5/8” drill bit, drill hole for sensor connection cord.
Once you’ve pushed the shower sensor cord through the hole,
use the stainless steel plate as a template, marking the location
of the mounting screws. The shower sensor assembly can be
mounted to a 4 x 2 x 23/16” deep electrical box with screws pro-
vided, although it is not necessary to do so. If installing onto wall,
drill 2 mounting holes (refer to figure 2) and install the sensor
assembly.
Do not yet tighten screws since you may need access to the sen-
sitivity and run time potentiometers for final adjustments.
Step 2:
Install Solenoid
To facilitate servicing, you may wish to install a service stop
directly upstream of solenoid. Prior to installing solenoid, flush
lines to be sure supply water is free from grit and sand. Solenoid
end connections are 3/4” NPT.
Using thread sealant on male threads only (do not use teflon
tape), connect supply line to solenoid, checking to be sure the
flow is in the proper direction (flow arrow is marked on solenoid
body). For normal operation, check to be sure the solenoid man-
ual override is in the “off” position or water will flow regardless of
sensor activation/deactivation.
Connect outlet side of solenoid to showerhead piping.
Step 3:
Install Modular Junction Box
Keeping in mind that the solenoid and sensor must be within 2¢
of the modular junction box (unless you’re using extra cables and
connectors), determine the location for mounting. Using the base
of the box as a template (cover should be removed by unsnap-
ping from base), drill two small holes for mounting of the box.
Install box. (See figure 3.)
Step 4: Transformer Installation
Transformer can be remotely located (in the chaseway, closet or
in ceiling, etc.) and can typically power up to eight shower solenoids.
You may wish to install a remote shut-off switch to shut down power
to showers during maintenance, cleaning or repair.
For single shower applications, connect supply wires to modular
junction box by loosening black and yellow screw terminals of mod-
ular junction box. Using the power cord wire supplied, connect one
of the two wires to the yellow terminal, the other to the black termi-
nal, tightening the screws for a sure connection. (Refer to figure 5.)
Replace cover onto Modular Junction Box. Insert the plug from
the solenoid into one receptacle of the modular junction box, and
the plug from the sensor into the other receptable. Either plug
can be inserted into either receptacle of the modular junction box.
Plug In Transformer (see figure 6). This type of Transformer is
designed to be plugged into a 110V AC wall outlet. Transformer
is supplied with a 10’ wire, which can be shortened or length-
ened to meet installation requirements using 22 gauge bell wire.
Connect the feed wires to the screw terminals on the secondary
side of the transformer. To avoid permanent damage to the trans-
former, sensor or solenoid valve, do not plug transformer into
outlet until all wiring has been completed!
Box Mount Transformer (see figure 7). This type of transformer is
designed to be mounted on an 110 VAC supply electrical junc-
tion box (“J” box should be mounted inside chase wall or above
ceiling). Run wires from secondary side of transformer to control
box enclosure. To avoid permanent damage to the transformer,
sensor, or solenoid valve, do not supply power to primary side of
transformer until all wiring has been completed.
Step 5: Start Up
Supply power to transformer.
Activate the sensor and check to
be sure the small red activation
light appears in the bottom of
sensor lens. (Refer to figure 8.)
INSTALLATION, CONTINUED
3
1
⁄
4
1
5
⁄
8
5
⁄
8
Dia. Hole
3
⁄
16
Dia. Hole
2 places
Shower Sensor
Assembly
Mounting Holes
Overall size of
plate: 4
7
⁄
8
″
square
Figure 2
Sensor Assembly Mounting Holes
Figure 3
Modular Junction Box
Solenoid Valve
or IR Sensor Connector
Red
Yellow
24 VAC to Yellow & Black
24 VAC
Solenoid Valve
or IR Sensor Connector
Black
Green
Figure 5
Modular Junction Box—Wiring
Figure 6
Plug-In
Transformer
Red
indicator light
Figure 8
Sensor Assembly Activation Light
Box Mount
Transformer
24V AC
Secondary
Figure 7