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Before You Begin (cont.)
NOTICE: Risk of product damage. Do not apply petroleum-based
lubricants to the valve components, as damage may result.
NOTICE: Risk of product damage. Inlet and outlet threaded joint
connections should be made with plumbers PTFE tape or liquid
sealant. Oil-based, non-setting compounds should not be used.
NOTICE: Do not force the handle in any direction. Forcing the
handle will damage the valve.
Observe all local plumbing and building codes.
Shut off the main water supply.
Inspect the supply piping for damage. Replace as necessary.
The bottom port of the thermostatic mixing valve is intended for
use as a bath filler only. If a bath spout is not used with this
product, cap the bottom port.
The P29511 and P29512 thermostatic mixing valves do not contain
an integral volume control/shut-off valve. You must install a
separate volume control/shut-off valve (P29527 or P29528)
downstream of any used valve outlet.
The thermostatic mixing valves do not have an integral aspirator.
For installations that use a bath diverter spout, you must install a
twin ell with integral aspirator between the valve and the bath
spout. If these thermostatic mixing valves are installed without an
aspirator, it will cause water to flow from the shower and bath
spout at the same time.
Determine the correct drain size and capacity for your
installation. If two thermostatic mixing valves are used together,
water volumes between 18 and 30 gpm (60 and 114 lpm) or more
are possible, depending upon the water supply pressure.
Determine the correct water heater size and capacity for your
installation. A typical shower installation uses an approximate
mix of 75% hot water and 25% cold. A custom shower application
using three 2-1/2 gpm (9.5 lpm) showerheads can use about 45
gallons (170 liters) of hot water in 8 minutes. Choose a water
heater large enough for your installation.
The valve is calibrated to 104°F (40°C) at the first stop position.
The maximum temperature limit stop is positioned so the outlet
water temperature does not exceed 120°F (49°C).
1170591-2-A
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