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Page 4

Sensor Valve Location

For the greatest effect, the valve should be located at a faucet with the greatest piping 
distance from the hot water heater.  If your home has a branched hot water line, more than 

one Sensor Valve may be necessary.  Additional Sensor Valve kits can be found at some 

retail locations as well as Watts Premier website at 

www.wattspremier.com

 or by calling toll 

free at (800) 752-5582.

NOTE:  Do not use Teflon tape or pipe dope on the Sensor Valve threads

.

Sensor Valve Installation

 3/8"  Stop Valve Installation

1.  Close both the hot and cold stop valves below the sink 

(see Picture 3).

2. 

Place supplied rubber washers in female end of 
adapters.  Attach adapters to both “Cold Water Out” and 
“Hot Water Out” ports of Sensor Valve. Finger tight plus 
a quarter turn with wrench.

3. 

Disconnect existing supply line connection from both hot 
and cold stop valves and then connect to adapter, attach 
to Sensor Valve (see Picture 5).

4.  Connect the new 1/2" x 3/8" flex hose to the hot water 

stop valve (3/8" side) and the “Hot Water In” port (1/2" 
side) of the Sensor Valve  (see Picture 5). Connect the 

remaining 1/2” x 3/8” flex hose to the cold water stop 

valve.

5. 

Open both the hot water and cold water stop valves.

6. 

If desired, Sensor Valve can be mounted to the wall with 
the mounting screws.

 1/2" or Other  Stop Valve Installation

1.  Close both the hot and cold stop valves below the sink 

(see Picture 3).

2. 

Place supplied rubber washers in female end of 
adapters.  Attach adapters to both “Cold Water 
Out” and “Hot Water Out” ports of Sensor Valve. 
Finger tight plus a quarter turn with wrench.

3. 

Disconnect existing supply line connection from 
faucet connection leave stop valve connection 

in place. Take disconected end and attach to 

“Hot Water In” and “Cold Water In” connections 
respectively

4.  Connect the new 1/2" x 3/8" flex hose to the 

already installed adapter (on Sensor Valve) (3/8" 
side) and the faucet connection (1/2” side) for 
both Hot Water and Cold Water respectively (see 
Picture 5).

5. 

Open both the hot water and cold water stop 
valves.

6. 

If desired, Sensor Valve can be mounted to the 

wall with the mounting screws.

Picture 3

Picture 4

Picture 5

Hot Water

Out

Cold Water

Out

Cold Water

In

Hot Water

In

Summary of Contents for 500800

Page 1: ...o the product s failure and possible damage to property Refer to enclosed warranty for operating parameters to ensure proper use with your water supply Manual Edition October 18 2007 INSTANT HOT WATER RECIRCULATING SYSTEM Pump and Comfort Valve CS VW MH26400 65GM ANSI NSF 61 DRINKING WATER SYSTEM COMPONENTS MAXIMUM USE TEMPERATURE 140 F Mfg by Grundfos Pumps U P C 12 Supply Line and Adapters ANSI ...

Page 2: ...able of Contents Package Contents Operational Parameters Pump Installation Sensor Valve Installation Sensor Valve Operation Electrical Timer Control Technical Data Timer Operation Warranty 2 2 3 4 5 5 6 7 8 Examine the components carefully to make sure no damage has occurred to the pump Care should be taken to ensure the pump is NOT dropped or mishandled dropping will damage the pump Package Conta...

Page 3: ...p is not touching the exhaust vent piping chimney of a gas or oil fired hot water heater 5 Connect the hot water line to the 3 4 NPT discharge of the pump Use pipe dope or Teflon tape to seal threads when connecting to a 3 4 female NPT connection If a gasketed flexible copper water heater connector is used pipe dope or Teflon tape is not required Water Heater Checklist Electric Water Heater Turn o...

Page 4: ...op valve 3 8 side and the Hot Water In port 1 2 side of the Sensor Valve see Picture 5 Connect the remaining 1 2 x 3 8 flex hose to the cold water stop valve 5 Open both the hot water and cold water stop valves 6 If desired Sensor Valve can be mounted to the wall with the mounting screws 1 2 or Other Stop Valve Installation 1 Close both the hot and cold stop valves below the sink see Picture 3 2 P...

Page 5: ...ing Interval 15 minute increment Switch Modes Timer ON Override OFF Override Protection Clear plastic cover for dust and moisture protection of the clock face Timer Technical Application The timer control is designed only for use with the specified WATTS INSTANT HOT WATER RECIRCULATING SYSTEM Installed indoors on hot water service systems The timer control is designed to turn the circulator on and...

Page 6: ...er on the inner dial Example for 10 30 AM Turn the minute hand clockwise until 10 30 AM is aligned with the triangle on the inner dial The hour and the minute dial will show exactly 10 30 Programming 24 Hour Timer manual switch position The 24 Hour dial has quarter hour division tabs plus AM PM indications Set the required ON OFF times on the programing ring by pushing the tabs away from or toward...

Page 7: ...y This warranty does not cover any equipment that is relocated from the site of its original installation This warranty does not cover any equipment that is installed or used outside the United States of America and Canada LIMITATIONS AND EXCLUSIONS WATTS WILL NOT BE RESPONSIBLE FOR ANY IMPLIED WARRANTIES INCLUDING THOSE OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE WATTS WILL NOT BE RES...

Page 8: ...Phoenix AZ 85027 Fax 623 931 0191 Watts Premier Inc Phone 800 752 5582 www wattspremier com LUPTLW04 10 07 PRINTED IN USA ...

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