Watts Industries POWERS BILTMORE 900 Series Owner's manual

The BILTMORE is a pressure-balancing mixer which delivers
a predetermined mix of hot and cold water by compensating
for pressure fluctuations in the hot and cold water supplies.
The BILTMORE features a poppet design valve as part of a
replaceable balancing cartridge. The poppet-type construc-
tion offers two distinct advantages: It will not stick due to
lime build-up or foreign particles in the supply water, and it
has a quick reaction time. The adjustable maximum temper-
ature stop prevents overadjustment of the handle.
Safety feature: Should either supply fail, the BILTMORE
reduces the flow of water to prevent a continued spray of all
hot or all cold water.
Capacity..................................4.6 gpm @ 45 psi
[15 L/min @ 310 kPa Differential]
Maximum Static Pressure ............125 psig [862 kPa]
Maximum Inlet Temperature ................180°F [82°C]
Inlet and Outlet Sizes..........1/2″sweat or NPT thread
Rough-in Guide .................................All Models
Handle Rotation Stop ..........................All Models
Listing ...................................ASSE 1016 Type P
Certified .........................................CSA B125
The BILTMORE is particularly recommended for shower
and shower/tub installations in hotels, motels, high-rise
apartments, condominiums, and single-family housing.
Pressure balancing valve (Type P) senses incoming water
pressures and compensates for fluctuations in either to sta-
bilize outlet temperature. The entire balancing poppet
assembly is contained in a chamber. This chamber is
replaceable as a complete cartridge. The hot and cold are
mixed by the action of the mixing plate. As the temperature
adjustment stem is rotated from shutoff to maximum hot
water discharge temperature, the mixing plate passes the
required proportion of hot and cold water to produce the
desired water temperature. With the adjustment stem in its
full clockwise position, shutoff is obtained by closing off
both supplies.
The maximum temperature limit stop (located on the bon-
net) allows the user to set the desired maximum discharge
temperature. This mixer does not compensate for supply
water temperature changes, so any variation in the water
temperature will affect the control point and the maximum
discharge temperature setting.
CAUTION: Maintenance of the unit requires resetting of
the maximum temperature adjustment stop. As inlet
temperatures vary from site to site and season to season,
failure to properly adjust the maximum temperature adjust-
ment stop can result in excessive hot water delivery.
TECHNICAL INSTRUCTIONS
BILTMORE Series 900
Pressure-Balancing Valves
Model 3
P902 P905
P909 P910
Figure 1 COLD WATER
SUPPLY
HOT WATER
SUPPLY
BALANCING
POPPETS
MIXING PLATE
OPERATION (See Figure 1)
DESCRIPTION
SPECIFICATIONS
APPLICATION
TI900

What to look for if:
1. The flow of water is less than desired.
a. Valves upstream from supply not full open
b. Low inlet water supply pressure(s)
c. Accumulation of lime deposits in hot water pipes,
restricting flow of hot water
d. Showerhead clogged
e. Checkstops obstructed or jammed
2. The flow of water is completely shut off.
a. Valves upstream from supply completely closed
b. Failure of hot or cold water supply pressure, the
mixer is designed such as to restrict the flow of
water on hot or cold water supply failure
c. Checkstops are closed
3. The flow is untempered hot or cold water.
a. Hot water supply temperature is too low
b. Diaphragm is ruptured; replace with new balance
chamber
4. The flow of water continues after mixer is shut off.
a. Worn shutoff discs; replace shutoff discs
b. Foreign particles on mixing plate causing scratches;
replace stem and plate
c. Bad O-rings on the inlet ports of cartridge; replace.
5. The maximum temperature is low.
a. Accumulation of lime deposits in hot water pipes
restricting flow of hot water
b. Concealed maximum temperature stop is not at
desired adjustment point
c. Hot water supply temperature is too low
6. The valve opens with hot water flow rather than
cold water flow.
a. Inlet water supplies are connected to the wrong
ports; see instructions below on reversed inlets.
Cold into hot, hot into cold
If reversed inlets are required due to back-to-back instal-
lation, close check stops. Remove High Temperature Limit
Stop. Unscrew bonnet. Rotate stem 180. The word
“TOP” stamped on stem must face down toward tub
outlet. Reinstall bonnet. Place High Temperature Limit
Stop on bonnet.
NOTE: Hot and cold inlets should be re-identified for
reversed inlets to avoid confusion during future mainte-
nance.
To service mixer, remove handle and dial assembly. Shut off
water supply at checkstops. Remove sleeve and O-ring,
unscrew bonnet, and remove stem.
To remove balance chamber, use needle-nose pliers. Pull
straight out.
Reassemble; Apply silicone grease to stem assembly (15)
at O-ring (14) and mixing plate face. Also apply silicone
grease to outlet seal (16). Be certain “TOP” stamped on
stem is facing up. Screw bonnet onto body; tighten to 75
in.-lbs. Place O-Ring on bonnet. Slide sleeve over O-Ring.
Turn on water at checkstops. Replace dial assembly and
handle.
To service checkstops, turn off water supplies upstream
of mixer. Unscrew checkstop bonnet nut and remove
plunger. Replace items as required.
TI900 Page 2
Outlet
Orientation of Plate and
Stem Assembly for
Standard Inlets
(Cold water into Cold port)
Flats on stem must face
top and bottom outlets.
(Note: “Top” stamped on
stem faces shower outlet.)
Cold
Water
Hot
Water
Outlet
Figure 2
MAINTENANCE/TROUBLESHOOTING SERVICING
REVERSED INLETS

TI900 Page 3
Item Part No. Description Material Kit No.***
1 900 213 Bonnet Nut Brass 900 050
2 084 029 O-Ring Buna-N 900 028, 050
3 900 214 Check Stem Brass 900 050
4 084 030 O-Ring Buna-N 900 025, 050
5 900 215 Spring S.S. 900 050
6 900 212 Poppet Brass 900 050
7 800 061 Disc Buna-N 900 028, 050
8* 800015H Sleeve C.P. Brass 900 269
9 084 041 O-Ring Buna-N 900 028
10 900 220 Limit Stop Celcon 900 032
11 900 137 Name Plate 900 032
12 900 219 Bonnet 900 032
13 084 032 O-Ring Buna-N 900 028, 032
14 084 033 O-Ring Buna-N 900 028, 032
15 900 231 Stem Assy. 900 032
16 900 197 Outlet Seal 900 028, 032
17 084 031 O-Ring Buna-N 900 028,032
18 900 240 Cartridge Celcon 900 032
19 902 234 Retainer (not shown) Brass N/A
Item Part No. Description Material Kit No.***
19 Body Bronze N/A
20 900 140 Plug Button Acrylic 900 035
900 142 Insert 900 035
21 800 161 Screw 8-32 x 5/8″Brass 900 035
21A 800 164 Screw 8-32 x 5/8″Brass 900 105, 036
22 900019C Knob Acrylic 900 035
23 080 026 Screw 8-32 x 3 1/2″Brass 900 040, 102
24 900020A Round Dial Plate S.S. 900 040
25 800 020 Gasket Buna-N 900 040
26 401 229 Gasket Buna-N 900 040
27 900 096 Plug Button ABS 900 105
28 900 070 Lever Handle Cast 900 036
29 900 091 Handle ABS 900 105
30 900 095 Insert Mylar 900 102
31 080 026 Screw 8-32 x 3 1/2” Brass 900 040, 102
32 900 090 Trim Plate C.P. ABS 900 102
33 900 093 Sleeve Gasket 900 102
34 900 094 Trim Gasket 900 102
* 900 132 in Model P910.
** Plug button (#900 140), insert (#900 142), and lucite handle (#900 019) are included
in Lucite Handle Assembly Kit #900 035.
***Parts must be ordered by Kit number, not by individual part number .
N/A = Part not available.
10
11
12
13
14
15
1
2
16
18
3
4
17
5
7
19
6
Silicone Grease
9
8
21A21A
2828
2323
2424
2525
2626
2020
2121
2222
2323
2424
2525
2626
MODEL YEAR WEEK
MODEL IDENTIFICATION*
3P26
* Located on label attached to bonnet.
PARTS
PARTS LIST
27
27
21A
21A
29
29
31
31
30
30
32
32
33
33
34
34

TI900 Page 4
ABS Lever Handle Kit (Model 905) 900 105
Faceplate Assembly (Model 905) (chrome finish) 900 102
Faceplate Assembly, Round 900 040
Plug Button with Insert for Lucite Handle 900 140
Plug Button Bulk Pack (25 pieces of 900 140) 900140BP
Stem Extension Kit 900 109
Thin Wall Mounting Kit 900 119
Vandal-Proof Screws (for handle and faceplate) 900 034
Maximum temperature setting must be set at the job site.
High temperature limit stop is located on the bonnet.
Remove O-ring and discard. Slide the retainer and the high
temperature limit stop out. Rotate stem to desired maxi-
mum temperature, but no greater than 115°F (46°C). Slide
back the maximum temperature limit stop touching the tab
on the stem. Slide the retainer back all the way to secure
the high temperature limit stop. Install handle.
The maximum temperature setting must be readjusted if
the hot water supply temperature is changed, and also
seasonally to compensate for changes in the cold
water supply temperatures.
WARRANTY INFORMATION
Powers warrants that the equipment manufactured by it is free from defects in material and workmanship and, without charge, equip-
ment found to be defective in material and workmanship will be repaired, or at Seller’s option, replaced F.O.B. original point of ship-
ment, if written notice of failure is received by Seller within one (2) years after date of shipment, provided said equipment has been
properly installed, operated in accordance with Seller’s instructions, and provided such defects are not due to abuse or chemical
decomposition by chemical or galvanic action. This express warranty is in lieu of and excludes all other warranties, guarantees, or rep-
resentations, express or implied. There are no implied warranties of merchantability or of fitness for a particular purpose. The Seller
assumes no responsibility for repairs made on Seller’s equipment unless done by Seller’s authorized personnel, or by written authority
from the Seller. The Seller makes no guarantee with respect to material not manufactured by it.
TI900 0632 6512245
TROUBLESHOOTING & REPAIR KITS ADDITIONAL KITS
MAXIMUM TEMPERATURE SETTING
Repair Kit No.TroubleshootingDescription
• Water leaks at valve stem
and/or bonnet.
• Water leaks at valve shut-off.
• Water leaks at checkstop.
900 030 Models 1 & 2*
900 028Model 3
• With mixer handle in MID
position, hot water flows with
cold water checkstop closed or
cold water flows with hot water
checkstop closed.
900031A Model 1
900 031 Model 2
900 032 Model 3
Internals
Replacement
• Checkstop will not completely
shut off.
900 049Models 1 & 2
900 050 Model 3
Checkstop
Replacement
• 800 handle will not operate
properly.
800 098**
Gasket and Disc
Replacement
(mixer & checkstops)
Conversion from
800 Lever Handle
to 900 Lever Handle
• 800 handle will not operate
properly.
800 099**
Conversion from
800 Lucite Knob
to 900 Lucite Knob
* Model 1—Use white TFE gasket; Model 2—Use black Viton A O-ring.
** Replacement of Biltmore 800 handle/stem, escutcheon, or cartridge upgrades
the valve to a Biltmore 900 Model 2.
High temperatue stop
Retainer
O-ring
© 2006 Powers
USA: Phone: [phone] • Fax [phone] • www.powerscontrols.com
Canada: Phone: [phone] • Fax [phone] • www.powerscontrols.ca