Powers HydroGuard 400 Series How to use

The Hydroguard 400/410 pressure balancing valve insures
safety to the bather upon hot or cold water supply pressure
failure or change. The internal balance chamber forces the
hot or cold water supply pressure to be equalized should
either pressure fail or change. To ensure correct repair
parts are installed, determine valve model by referring to
bonnet label (see Figure 1). Once model number is deter-
mined, refer to appropriate chart to ensure correct kit has
been supplied. Since kits contain parts for multiple
models, discard extra parts.
Replace Balance chamber if…
• The discharge water temperature is variable or untempered.
• The valve leaks after it is completely shut off.
Balance Chamber Removal:
TO REMOVE THE BALANCE CHAMBER, using a bal-
ance chamber extraction tool (Part No. 401-202) is highly
recommended. To use the extraction tool, follow instruc-
tions below:
a. Insert hooked ends of extraction tool into HOT and
COLD outlet ports of the balance chamber (see Figure
2).
b. Insert screwdriver down through end of extraction tool.
c. Place a wood or plastic block (do not use metal)
between screwdriver and valve body. Firmly ease
screwdriver away and downward, using wood for
added leverage as cartridge is gradually pulled out.
Balance Chamber Installation:
1. Apply a small amount of silicone supplied to inner surface
of valve body and inlet “O”-rings of balance chamber.
2. Align chamber and valve body inlet holes.
3. Slowly push chamber in, being very careful not to pinch
side “O”-rings (item 5A in figures 5 and 6).
Replace Gasket and Disks if…
• Flow continues after mixer is turned off.
• Stem or handle is damaged.
• Water leaks at stem and/or bonnet.
Gasket and Disc Replacement:
1. Replace all gaskets and discs according to the dia-
grams as shown in figures 5 and 6. Use silicone gel
provided on all “O”-rings and related surfaces. Never
use grease.
2. The number of flat washers required for installation on
stem varies with each model. Refer to Figure 3 when
replacing the washers.
REPAIR FORM
HydroGuard®400/410/2000
Pressure Balancing Valves
All Models
DESCRIPTION
REPAIR INSTRUCTIONS
HOT COLD
5U7
MODEL
NUMBER
DATE
CODE
5U7
MODEL
4
0
1
-
0
0
0
P
A
R
T
N
O
.
POWERS
FIGURE 1: Determine Your Valve Model
Washer(s) — Models 1-3, 5, 7, 8 1 washer
Models 4, 6 4 washers
Figure 3: Number of Flat Washers to Use By Model
NOTE: Be certain to refer to Figure 5 or Figure 6 to
locate the appropriate parts and kits for your model.
Figure 2: Balance Chamber Removal
RF 400/410/2000

RF 400/410/2000 Page 2
Replace Stem and Plate if…
• Flow continues after mixer is turned off.
• Water leaks at stem and/or bonnet.
Stem and Plate Replacement
1. FOR STANDARD INLETS: Place the plate
directly on top of the balance chamber
(see Figure 4 for proper orientation of
plate).
2. The flat notch on the splined stem must
FACE the outlet port of the valve body for
standard inlets (cold water entering COLD
inlet port).
3. FOR REVERSED INLETS: (cold water
entering hot inlet port), the flat notch on the
splined stem must face AWAY FROM the
outlet port. See Figure 4A for proper orien-
tation of plate.
REPAIR INSTRUCTIONS (CONTINUED)
PARTS
Troubleshooting Repair
Kit No.
Where
Used
Repair Kit Includes
(Numbers below correspond with
numbers in Figure 5 above)
1. Water leak at stem and/or bonnet.
2. Flow continues after mixer is turned off.
Gasket and Disc
Replacement
410-182 400/410
All Models
1–4, 5A, 6**
1. Cartridge slips while seated in body.
2. Flow continues after mixer is turned off and all
other seals have been replaced.
Oversize 410 Inlet
Searl Kit*
410-570* 400/410
All Models
1–4, 5A, 5B*, 6**
1. Variable or untempered discharge temperature.
2. Leakage after mixed is turned off.
Balance Chamber 410-183
(for any
3-port valve)
400: Models 1-3
410: Models 1-3, 7, 8
Metal and Plastic Bonnet
3–5, 5A, 13, 15, 16**
1. Flow continues after mixer is turned off.
2. Handle splines on stem damaged.
Stem and Plate
Replacement
410-378 400: Models 1-3
410: All Models
1–4, 7–9***
410-378A 419's only 1–4, 7–9**
1-4, 7-9*** (shorter stem)
* When using oversize O-ring (item 5B), discard ONE of the two regular sized O-rings (5A) normally used and use item 5B in its place.
** Use O-ring only on Hydroguard 412/414. Others use gasket.
*** Item 7 has brass stem and Celcon Plastic Mixing Plate (refer to Figures 4 and 4A).
PLEASE NOTE: Some kits contain parts for more than one model. Discard additional parts as appropriate.
Figure 5: HydroGuard 400/410
Models 1-3, 5, 7, 8.
NOTE: For reversed inlets, be sure to clearly identify
the Hot and Cold inlet ports to avoid confusion
during future maintenance.
HOT
COLD
Cold
Water
Notch in Handle
(top) Spline
Must FACE Outlet
Outlet
Must Point
to COLD Inlet
Hot
Water
+
Orientation of Plate and Stem Assembly
for STANDARD Inlets
(Cold Water into COLD port)
HOT
COLD
HOT
Water
Notch in Handle
(top) Spline
Must Face AWAY
From Outlet
Outlet
Must point to
HOT inlet
COLD
Water
+
Orientation of Plate and Stem Assembly
for REVERSED inlets
(Cold Water into Hot port)
Figure 4: Standard Inlets Figure 4A: Reversed Inlets

RF 400/410/2000 Page 3
PARTS (CONTINUED)
Figure 6:
HydroGuard 400 - Models 4 & 6
HydroGuard 410 - Model 4
HydroGuard 2000 - Model 1

RF 400/410/2000 Page 4
MAXIMUM TEMPERATURE SETTING (refer to Figure 7).
This mustbe set on the job and following any maintenance
or servicing to the valve. Mixer is factory set to pass full
HOT water.
a. Loosen adjustment stop screw (do not remove).
Gradually rotate stem counterclockwise to get desired
maximum water temperature. (Maximum Temperature
Stop will rotate long with the stem when the stem is
rotated).
b. Once stem has been rotated to desired temperature,
slide adjustment stop clockwise until fin on adjustment
stop touches the maximum temperature stop.
c. While holding adjustment stop in place, tighten adjust-
ment stop screw.
d. Replace handle. Confirm maximum temperature has been
set properly by operating the valve using the handle.
Caution: Adjustment stop must be present for proper
operation.
MAXIMUM TEMPERATURE SETTING/HANDLE ROTATION STOP
Figure 7: Maximum Temperature Setting
RF 400/410/2000 0648 EDP# 6508770
© 2006 Powers
USA: Phone: [phone] • Fax [phone] • www.powerscontrols.com
Canada: Phone: [phone] • Fax [phone] • www.powerscontrols.ca