Watts 81007368 Installation guide

81007368
Watts
Brand
Watts
Model
81007368
Type
Installation guide
Plywood Subfloor
Pex LockDown
3
4
" Wood Screw, Minimum
E-PexB
Release Date: October 2001
3131 W. Chestnut Expressway
Springfield, MO 65802
ph: 417.864.6108
fax: 417.864.8161
www.wattsradiant.com
Installation Bulletin:
PEX LockDown for Underfloor Applications
PEX
LockDown
Watts Radiant offers a unique clipping method for underfloor,
suspended PEX applications. The PEX LockDown is great alternative
to other, more costly alternatives.
Each LockDown is composed of high-temperature nylon with a
conector that “clicks” shut. Each LockDown is designed to hold
3/8” or 1/2” barrier or non-barrier PEX tubing securely in place
without over tightening.
Caution
LockDowns are intended to hold the PEX loosely - do not use any
other fasteners that grip the PEX tightly. PEX, if gripped too tightly,
will cause a ticking noise as it expands and contracts. Do not use
LockDowns with 5/8” or greater PEX tubing.
Installation Instructions
We recommend the following procedure, installing one joist bay
at a time.
1. With a chalk line, mark each row of LockDowns in a joist bay.
2. Install LockDowns every 24-30” oc along the chalk line to the
subfloor with a 3/4” long wood screw.
3. Drill 1-3/4” holes in the middle of the joist as shown in the
diagrams. Check with local building codes for hole size or location
restrictions or additional recommendations.
4. Pull the PEX down the joist cavity. Make sure the PEX does
not twist as it is pulled from joist bay to joist bay.
5. Place each PEX run into the corresponding LockDown.
6. Complete the attachment by simply closing the connector utnil it
“clicks” into place.
7. Before installing insulation below the tubing, carefully inspect the
PEX to make sure each LockDown is securely fastened.
Description Part Number List Price
LockDown Clips pkg 100 P667100-100 $49.00
LockDown Clips pkg 1000 P667100-1000 $490.00
1-3/4” Hole in the middle of
the joist is required to pull the
PEX from bay to bay.
Leave the ends free to
move as needed.
PEX Tubing
1
3
”
8
1
1
”
8
8” oc.
16” oc.
LockDown Installation Sheet: Friday 27 July 2001
  • Page 1 1

Watts 81007368 Installation guide

81007368
Watts
Brand
Watts
Model
81007368
Type
Installation guide
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