Watts Heat H2O HWRS-WH Manuel D'installation Et D'utilisation page 4

OR
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 flex 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 flex 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 21 Check Sensor Valve Operation
NOTICE
If desired, Sensor Valve can be mounted to the wall with the
mounting screws. (See Picture #6).
Picture #5
Correct Installation
Incorrect Installation
Picture #6
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 21
Step A - Close the cold water stop valve below the sink
Step B - Open the cold water faucet
Step C - Water should flow slowly from the faucet until hot water
reaches the valve The flow 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 flow 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 flow 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 flex
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 flex
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