Watts Industries POWERS BILTMORE 900 Series Technical Instructions

DESCRIPTION
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
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SPECIFICATIONS
Maximum Static Pressure
Maximum Inlet Temperature
Inlet and Outlet Sizes
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Rough-in Guide
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Handle Rotation Stop
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Listing
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Certified
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APPLICATION
The BILTMORE is particularly recommended for shower
and shower/tub installations in hotels, motels, high-rise
apartments, condominiums, and single-family housing.
OPERATION (See Figure 1)
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.
4.6 gpm @ 45 psi
[15 L/min @ 310 kPa Differential]
125 psig [862 kPa]
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180°F [82°C]
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1/2" sweat or NPT thread
All Models
All Models
ASSE 1016 Type P
CSA B125
TECHNICAL INSTRUCTIONS
Pressure-Balancing Valves
P902
P909
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.
Figure 1
BALANCING
POPPETS
MIXING PLATE
BILTMORE Series 900
Model 3
P905
P910
COLD WATER
SUPPLY
HOT WATER
SUPPLY
TI900