4
STEP 2.1
Check Sensor Valve Operation
After installing the pump and the sensor valve, verify the valve is
functioning properly by following the steps below:Step 2.1
Step A -
Close the cold water stop valve below the sink.
Step B -
Open the cold water faucet.
Step C -
Water should fl ow slowly from the faucet until hot water
reaches the valve. The fl ow should gradually decrease until
no water is coming from the faucet, at which time the sen-
sor valve is closed.
Step D -
Close the cold water faucet and open the hot water faucet
to verify that hot water begins to fl ow quickly from the
spout.
Step E -
After verifying the Sensor valve is operating correctly, open
the cold water stop valve below the sink and check for
leaks over the next 24 hours.
STEP 2.2
(Optional)
Parallel Sensor Valve Installation
If you have uninsulated piping or long runs of pipe on a concrete
foundation it may require adding an additional Sensor Valve or install-
ing valves in parallel to increase the fl ow and reduce temperature
drop. Follow the steps below for parallel Sensor Valve Installation:
Step A -
Follow steps A and B of the 3/8” or 1/2” stop valve installa-
tion, depending on your stop valve connection size.
Step B -
Disconnect faucet supply line connection from the “Hot
Water Out” and “Cold Water Out” of the previously installed
Sensor Valve. Take the disconnected end and attach to the
“Hot Water Out” and “Cold Water Out” of the new Sensor
Valve.
Step C -
3/8” Installation
– Connect the 3/8” side of the new fl ex
hoses to the adapters installed on the previously installed
Sensor Valve and the 1/2” side to the “Hot Water In” and
“Cold Water In” of the new Sensor Valve respectively.
1/2" Installation
– Connect the 3/8” side of the new fl ex
hoses to the adapters installed on the new Sensor Valve
and the 1/2” side to the “Hot Water Out” and “Cold Water
Out” of the old Sensor Valve respectively.
Step D -
Open the hot and cold water stop valves below the sink.
1/2" Stop Valve Installation
Step A –
Close both the hot and cold water stop valves below the
sink.
Step B –
Place supplied rubber washers in female end of adapters.
Attach adapters to both “Cold Water In” and “Hot Water In”
ports of Sensor Valve. Finger tight plus a quarter turn with
wrench.
Step C –
Disconnect existing supply line connection from both hot
and cold stop valves. Take disconnected end and attach
to the “Hot Water Out” and “Cold Water Out” connections
respectively.
Step D –
Connect the 1/2" side of the new fl ex hose to the hot water
stop valve and the 3/8" side to the adapter installed on
“Hot Water In” port of the Sensor Valve. Repeat for the
remaining fl ex hose to the cold water stop valve.
(See Picture #5).
Step E –
Open the hot water stop valve and proceed to Step B of
Step 2.1 Check Sensor Valve Operation.
OR
NOTICE
If desired, Sensor Valve can be mounted to the wall with the
mounting screws. (See Picture #6).
Picture #5
Picture #6
Correct Installation
Incorrect Installation
