Onix Tubing Installation Manual

page 24 Watts Radiant: Onix Installation Manual
To help seal the joist cavity, the insula-
tion needs to be placed up against the
header plate of the truss. This will pre-
vent air from moving from bay to bay
and from moving downward to the
environment below. By doing this, a
2" air gap is no longer a possibility.
If the insulation is placed so it just
extends into the header space, a 1/2" -
3/4" air space should be easily main-
tained. It still remains critical that the
insulation does not touch the radiant
tubing.
The above illustration shows a serpentine layout
wi
th a banded area running parallel to the exposed
wall
. The banded area is spaced at 4" oc.
Return Manifold
Supply Manifold
Frame
me
F
F
loor: S
: S
te
te
p by Step
The above illustration shows a sperpentine layout
wi
th a banded area running perpendicular to the
exposed
wall. The banded area is spaced at 4" oc.
Supply Manifold
Return Manifold
The above illustration shows how to "pick up" a bay
when
the previous circuit terminates mid-run. The
second
circuit loops back down the open bay from the
far end. The remainder of the circuit is installed in the
sa
me fashion as the first circuit.
Return Manifold
Supply Manifold
This illustration shows a serpentine layout with a
banded area running parallel to the exposed wall.
The banded area is spaced at 4" o.c.
The above illustration shows a serpentine layout
wi
th a banded area running parallel to the exposed
wall
. The banded area is spaced at 4" oc.
Return Manifold
Supply Manifold
Frame Floor: Step by Step
The above illustration shows a sperpentine layout
wi
th a banded area running perpendicular to the
exposed
wall. The banded area is spaced at 4" oc.
Supply Manifo
ld
Return Manifo
ld
The above illustration shows how to "pick up" a bay
when
the previous circuit terminates mid-run. The
second
circuit loops back down the open bay from the
far end. The remainder of the circuit is installed in the
sa
me fashion as the first circuit.
Return Manifold
Supply Manifold
The above illustration shows a serpentine layout
wi
th a banded area running parallel to the exposed
wall
. The banded area is spaced at 4" oc.
Return Manifold
Supply Manifold
Frame Floor: Step by Step
The
above illustration shows a sperpentine layout
wi
th a banded area running perpendicular to the
exposed
wall. The banded area is spaced at 4" oc.
Supply Manifold
Return Manifold
The above illustration shows how to "pick up" a bay
when
the previous circuit terminates mid-run. The
second
circuit loops back down the open bay from the
far end. The remainder of the circuit is installed in the
sa
me fashion as the first circuit.
Return Manifold
Supply Manifold
This illustration shows a serpentine layout with a
banded area running perpendicular to the
exposed wall. The banded area is spaced at 4" oc.
This illustration shows how to “pick up” a bay
when the previous circuit terminates mid-run. The
second circuit loops back down the open bay
from the far end. The remainder of the circuit is
installed in the same fashion as the first circuit.
Typical TJI (Truss Joist International) cross-section.
TJI Joist
Foil-faced batt insulation.
Insulation needs to
make contact with
the header beam
to create a sealed
cavity.
Layout Examples
Open Web Trusses offer several advantages
on large construction projects. Webb Truss
floors can carry heavier loads and can span
greater distances.
Staple-Up