Cuno SQC Series User Manual

The feed water tapping valve which is supplied, is

designed to be used on 3/8" to 1/2" OD soft copper tubing
(plain or chromed) and rigid metal pipe.  Do not use it on flexi-
ble ribbed tubing, because it has too thin a wall thickness and
it requires special hardware.

Soft Copper Tubing Installation:
1)

Close the cold water supply valve under the sink, or the 
main valve for the house.

2)

Before installing the feed water tapping valve, make sure 
that the piercing lance does not protrude beyond the rubber 
gasket.  (See Fig. 3)

3)

Assemble both halves of the feed water tapping valve onto 
the copper tubing.

4)

For 3/8" OD tubing, use the side of the bracket with the 
projections to prevent distortion of the tubing.  Use the "V" 
side of bracket for all larger size tubing.  Tighten the 
screws evenly and firmly.  The brackets should be parallel.  
Do not deform the tubing.  (See Fig. 3)

5)

To pierce the soft copper tubing, turn the handle clockwise 
until it is firmly seated.  The valve is closed in this position.  
With a wrench, tighten the nut/seal around the valve 
handle stem.  Open the cold water supply valve.

6)

Remove the cover from the appliance and disconnect the 
orange 1/4" tubing from the feed water fitting.  (See Fig. 6)

7)

Connect one end of the orange tubing to the feed water 
tapping valve using the brass compression nut, insert in 
plastic sleeve.  (See Fig. 3)

NOTE:  For basement installations, the existing orange feed
water tubing may have to be longer to reach the feed water
tapping valve.

Rigid Metal Pipe Installation:
1)

Close the cold water supply valve and drain the line to 
prevent spillage.

2)

Drill a 3/16" diameter hole at the desired location on the 
pipe.  To prevent any electrical shock hazard, use a 
battery operated drill.

3)

Turn the feed water tapping valve handle clockwise to 
expose the piercing lance beyond the rubber gasket no 
more than 3/16".  (See Fig. 3)

4)

Assemble the feed water tapping valve on the pipe by 
inserting the piercing lance into the drilled hole and 
tightening the two halves together.  Use the "V" side of the 
bracket.  Tighten the screws evenly and firmly, keeping the 
two sides of the bracket parallel.

5)

Turn the feed water tapping valve handle clockwise to 
close the valve.  With a wrench, tighten the nut/seal 
around the valve handle stem.

6) Remove the cover from the appliance and disconnect the 

orange 1/4" tubing from the feed water fitting.  (See Fig. 6)

7) Connect one end of the orange tubing to the feed water 

tapping valve using the brass compression nut, insert, and 
plastic sleeve.  (See Fig. 3)

NOTE:  For basement installations, the existing orange feed
water tubing may have to be longer to reach the feed water
tapping valve.

Fig. 3

6