Powers 470 Series VisuGuard Pressure-Balancing Tempering Valve with LCD Temperature Display User Manual
Page 2
2
H
O
T
C
O
LD
COLD
Outlet
Orientation of Plate and Stem Assembly
for STANDARD Inlets
(Cold Water into Cold port)
Must Point
to COLD Inlet
Notch in Handle
Spline
Must FACE TOP
Water
HOT
Water
C
FIGURE 2 – STANDARD INLETS
Troubleshooting
n
Description
Recommended Repair Kit
Kit Number and Contents
1. Water leaks at stem and/or bonnet.
2. Flow of water continues after mixer is turned off.
Gasket and Disc
Replacement
410-182 Items 3, 3A, 8, 12, 16
1. Variable or untempered discharge temperature.
Balance Chamber
410-183 Items 8, 12, 13, 14, 15, 16, 17
1. Flow continues after mixer is turned off.
2. Handle splines on stem damaged.
Throttling Stem and Plate
Replacement
410-378 Items 3, 3A, 8, 9, 10, 11, 12
Discard Extra O-rings
1. Cartridge slips while seated in body.
2. Flow of water continues after mixer is turned off,
and all other seals have been replaced.
Oversize 410 Inlet
Seal Kit
410-570 Items 3, 3A, 8, 12, 16
Disgard oversized O-ring (not shown)
Electronics
1. Display not working (blank).
Battery not properly installed
or "dead".
Replace or reinstall battery correctly.
2. Temperature does not change on display when
handle is turned.
Temperature probe not
installed.
Remove plate and install.(See Figure 7)
3. Temperature display does not respond rapidly
when handle is turned.
Temperature probe not
properly installed.
Reinstall (See Figure 7).
Notes
:
1. Use silicone provided on all O-rings and related surfaces. Never use grease.
2. Some kits contain parts for all models; discard extra parts as appropriate.
Maintenance
n
Troubleshooting
What to look for:
1. The flow of water is less than desired.
a. Valves upstream from supply not fully open.
b. Low supply pressures.
c. Accumulation of lime deposits in hot water pipes,
restricting the flow of hot water.
d. Showerhead clogged.
e. Checkstops may not be fully open.
f. Low hot water supply temperature.
2. Flow of water is completely shut off.
a. Valves upstream from supply completely closed.
b. Failure of hot or cold water supply pressure.
The Hydroguard is constructed to restrict the flow
of water on hot or cold water supply failure.
c. Checkstops closed.
3. Flow is untempered hot or cold water.
a. The water supplies are connected to the wrong ports.
Reconnect valve supplies to proper ports.
b. Diaphragm is ruptured; replace with new cartridge.
c. Check for foreign material that may be clogging the car-
tridge strainers.
4. Flow of water continues when VisuGuard LCD is shut off.
a. Worn shut-off discs. Replace worn disc.
b. Scratched mixing plate.
c. Erosion. Contact a Powers applications engineer to
order replacement parts.
5. Maximum temperature is too low.
a. Accumulation of lime deposits in hot water pipes, which
restricts the flow of hot water.
b. The concealed maximum temperature limit stop is
not at its maximum adjustment. See page 5 to set the
maximum temperature limit stop.
c. Hot water temperature is too low.
6. Standard inlets are desired.
See Figure 2 for instructions on standard inlets (with cold
water entering the COLD port). With mixer in closed posi-
tion, the
notch in the top spline on the stem must FACE
the outlet.