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 SAFETY INSTRUCTION

This safety alert symbol will be used in this manual to draw attention to safety related instructions. 

When used, the safety alert symbol means 

ATTENTION! BECOME ALERT! YOUR SAFETY IS 

INVOLVED! FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN A SAFETY 

HAZARD.

CAUTION:

 All work must be performed by qualified personnel trained in the 

proper application, installation, and maintenance of systems in accordance 

with all applicable codes and ordinances.

CAUTION:

 Over-tightening and breakage can occur with the use of Teflon

®

pipe joint compounds. Teflon

®

 provides lubricity so that care must be

exercised not to over-tighten joints. Failure to follow these instructions

could result in property damage and /or personal injury.

CAUTION: 

Electrical shock hazard. Disconnect ALL power sources when 

installing  or  servicing  this  equipment  to  prevent  eletrical  shock  or  

equipment damage. Failure to follow these instructions could result in property 

damage and/or personal injury. 

Caleffi shall not be liable for damages resulting from stress corrosion, misapplication or misuse of it products.

2

WARNING: 

This product can expose you to chemicals including lead, which is known 

to the State of California to cause cancer and birth defects or other reproductive harm. 

For more information go to www.P65Warnings.ca.gov.

Summary of Contents for Uni-Switch 626 Series

Page 1: ...tainless steel is used in the construction of many key parts including the bellows which protects the switch from corrosion With a protection classi cation of NEMA type 3 IP54 the switch can be used i...

Page 2: ...Teflon provides lubricity so that care must be exercised not to over tighten joints Failure to follow these instructions could result in property damage and or personal injury CAUTION Electrical shoc...

Page 3: ...r lubrifiant Teflon permet de sorte qu il faut prendre soin de ne pas trop serrer les articulations Le non respect de ces instructions peut entra ner des dommages mat riels et ou des blessures ATTENTI...

Page 4: ...on the cover and on the switch mounting plate When tted the distance between the upper surface of the pipe and upper surface of the switch mounting plate should be 3 1 8 80 mm The tee connection in th...

Page 5: ...ded the common black wire and normallyopen red wire contacts are closed while the common black wire and the normally closed blue wire are open Diagrams showing the internal connections of the micro sw...

Page 6: ...e calibration screw A i n a clockwise direction f or the contacts to close at higher ow rate values or in a counterclockwise direction for lower ow rate values When the adjustment has been made lock t...

Page 7: ...Operating ow rates gpm lpm 7...

Page 8: ...Caleffi North America Inc 3883 West Milwaukee Road Milwaukee WI 53208 T 414 238 2360 F 414 238 2366 8 NOTES 12 2022...

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