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Page 6

TIMER OPERATION

NOTE: Before the circulator is started, the water 

system must be filled with water and vented.

The timer has three modes of operation 
controlled by a manual switch:

1)  

OFF

 position: Circulator off     

2)  

TIMER

 position: Circulator   

 

 

controlled by the timer settings

3)  

ON

 position:  Circulator in    

 

 

continuous operation - not controlled   

 

by the timer settings

      

Time Setting

NOTE: DO NOT SET THE TIME BY ROTATING “OUTER” DIAL.
TO SET THE CURRENT TIME, TURN THE MINUTE HAND CLOCKWISE.

 

Turn the minute hand clockwise until time of day on the outer dial is aligned with the 
triangle marker 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 towards the 
center of the ring.  Tabs pushed away from the center ring indicate circulator "ON" while 
tabs pushed towards the center ring indicate circulator is switched "OFF".  

The circulator will now start/stop according to the settings of the programming tabs.

In case of power outage the timer will not keep time.  Repeat time 
setting step when power is restored.

Triangle Marker

Manual Switch

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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