PEX Installation Manual

41
IM-PF 724596 0416
3. While holding the tube securely to prevent turning,
nish tightening the nut with the ManaBloc Wrench
(part number 50631) until the white Lock-In insert
appears between the lugs and becomes ush with
the ends of the lugs, plus ¼- to ½-turn.
Complete the connection as soon as each distribution
line is connected to the ManaBloc. Each valve should
be turned counter clockwise ¼-turn to the open
position after completing each connection, as
shown above.
WARNING: DO NOT use slip-joint pliers to
tighten the Lock-In nuts. Use the ManaBloc
wrench (part number 50631) to tighten the
compression connections.
4. After all connections are complete, recheck that all
of the Lock-In inserts are visible between the lugs
and are ush or protruding slightly beyond the lugs.
5. As the distribution lines are connected to the
ManaBloc, they should immediately be labeled on
the cover plate as to which xture that line supplies.
Fixture labels are included with each ManaBloc. Afx
the appropriate label to the cover plate next to the port.
COMPRESSION CONNECTION CAUTION
This plumbing system relies upon the
proper tightening of distribution line
compression connections.
Failure to properly complete ALL connections may
result in system failure. Incomplete or improper
connections can hold pressure during a system test
but may fail at a later date, resulting in water damage.
DO NOT OVERTIGHTEN compression ttings.
Overtightening of the Lock-In compression nuts may
cause damage to the tubing, nut, valve or tting
body. DO NOT tighten Lock-In nuts beyond the
recommendation of these instructions (Step 3).
LUG
For compression connections:
NOT FOR USE WITH FOSTAPEX
NOTE: The red ManaBloc valves designate hot
ports and the blue valves designate cold ports.
Make sure the distribution lines are connected to the
correct ports (hot or cold). The use of color-coded
ViegaPEX Ultra tubing reduces the possibility of cross
connections.
1. For each distribution line, slide the Lock-In
compression nut (A), Lock-In insert (B) and the
plastic ferrule (C) onto the tubing in that order. (See
illustration below.)
The long taper of a ⅜" ferrule (C) must be TOWARD
THE END OF THE TUBE; a ½" ferrule is symmetrical
and may be installed facing either direction. Insert the
stainless steel stiffener (D) COMPLETELY into the
end of the tubing.
WARNING: DO NOT attempt to install the
Lock-In insert backward as it may break.
ALWAYS insert the long portion of the insert
sleeve over the tube rst.
DO NOT attempt to use or reuse inserts that are
defective, cracked, broken or otherwise damaged, as
connection failure will result.
2. Push the tubing into the port socket (E) until it
bottoms out.
Holding the tube so that it does not back out of
the port socket, slide the white Lock-In insert
and ferrule snugly against the chamber inside
the port socket.
While holding the tube against the bottom of the
socket, thread the Lock-In compression nut onto the
port and tighten hand-tight.
E D C B A
E