85
Water Flow Switch (WFS) Wiring
The WFS comes with a limited wire length. Extend the
wires as required, ensuring they do not exceed 20 ft. in
length.
Figure 158. Water Flow Switch
• Before starting any work on the heater, make sure to
shut off all power to avoid the risk of electrical shock
or damage to components.
• Ensure to run the WFS wires separately from the
high-voltage wires. Low-voltage wiring should not be
run together with high-voltage lines.
Follow the next set of instructions to connect the WFS to
the heater.
1. After installing the WFS onto the heater's inlet
pipeline, route the wires from the WFS to the heater's
corner post. See Figure 65.
2. Use the grommet/knockouts located on the heater's
corner post to route WFS wires into the heater. Ensure
that liquid-tight connectors are used to prevent water
or dust intrusion. See Figure 65.
3. To access the heater's front control cover panel, use
a 1/4" hex head screwdriver to unscrew the six (6)
screws. See Figure 127.
4. To remove the front panel, pull the bottom of the
panel downward and outward, and then disconnect
the wire attached to the rear of the user interface.
See Figure 128.
5. The panel should now be free for removal. See
Figure 128.
6. Set the control panel cover aside to reinstall when
wiring is completed.
7. Use the grommets in the control box to run wires from
inside the corner post to the inside of the electrical
junction box, using the grommets located next to the
transformer. See Figure 159.
8. Locate the orange wires connected to the Water
Pressure Switch (WPS). Proceed to disconnect the
terminals from the WPS. See Figure 159.
9. Connect the 2-wires from the WFS with the 2 orange
wires that were disconnected from the WPS.
a. For a clean installation, use ¼” male spade
terminals (.032 x .250, 18-22 AWG) for each wire
of the WFS to mate with the WPS orange female
terminal wires.
b. Alternatively, connect the WPS orange wires with
the WFS wires using wire nuts or butt splices.
10. Reinstall the control panel. Ensure to reconnect the
display board before fastening the front panel.
WFS
WIRING
Figure 159. WFS Wire Routing into J-Box
To Next Page
Loading...
