1
Radiance
®
Direct Vent Gas Heater
30004967
7. Install the appropriate roof support and flashing, mak-
ing certain that the upper flange of the flashing base is
below the shingles. (Fig. 33)
8. Install appropriate pipe sections until the vent run
reaches above the flashing. The enlarged ends of the
vent sections always face downward.
9. Install the storm collar and seal around the joints. (Fig.
33)
10. Add additional vent lengths to achieve the proper
overall height.
11. Apply cement to the inner and outer termination collars
and install the terminal cap.
ST222
vent thru ceiling
12/99
#7DVAIS
Attic Insulation
Shield
#7DVFS
Firestop in Up-
per Floor
#7DVFS
Firestop in
Ceiling
Use Four
8d Nails
ST
Fig. 32
Install firestops and attic insulation shield.
ST221
vent thru roof
12/99
Storm Collar
Sealant
Upper
edge of
flange goes
under upper
shingles
Flashing
#7DVSKV
(A, B, or
F) Roof
Support
Use three #5
sheet metal
screws at
each joint
ST1
Fig. 33
Roof support and flashing.
Selkirk Direct-Temp Metalbestos
Direct Vent System
Installation Instructions
1. Determine whether the length of pipe fits the appliance
outlet by attempting to engage the parts. If the parts
engage smoothly, proceed to Step . If obstructions,
interference or loose fit is noted, contact the appliance
manufacturer or Selkirk Metalbestos with the dimen-
sions of the appliance outlet.
. Slide the length of pipe over the appliance outlet a
minimum of 1
Z\x
” and screw to the appliance outlet col-
lar using a minimum of two () #8 x 1/4” sheet metal
screws.
Appliance Adapter (AAV)
The appliance adapter (AAV) adapts DIRECT-TEMP to
most direct vent appliances incorporating outlet collars
configured to receive most common 4” (ID) 6
⁵\,
” (OD) or 5”
(ID) by 8” (OD) “Twist Lock” Style, direct vent systems.
The adapter incorporates two () indentations on the out-
er wall of the inlet end, which are designed to “Twist Lock”
into place upon attachment to the appliance outlet. Align
the adapter indentations with the entry slots of the appli-
ance outlet and slide together. Turn the adapter clockwise
approximately one-quarter turn to lock in place. The outlet
end of the adapter is standard DIRECT-TEMP construc-
tion.
Framing Dimension Table 1
Model DT Ceiling Support (CS) Cathedral Ceiling Wall Thimble
Diameter
Firestop (FS)
Support CCS)
(WT)
4”
8
Z\v
” x 8
Z\v
”
10
⁵\,
” x 10
⁵\,
”
8
Z\v
” x 8
Z\v
”
5”
10
Z\,
” x 10
Z\,
”
14
Z\x
” x 14
Z\x
”
10
Z\,
” x 10
Z\,
”
Use of Sealant
It is not required to apply or use sealant on the inner liner
of DIRECT-TEMP. For outer wall joint sealing consider-
ations, follow appliance manufacturer recommendations.
Joint Connection:
The pipe and elbows are assembled by inserting the out-
let (male) end of a length of pipe or elbow into the inlet
(female) end of an adjacent length of pipe or elbow. Make
sure the outlet end is fully seated within the inlet end of
the adjoining section and the gasket, located on the inner
liner of the inlet section is fully enclosed by the inner liner
of the outlet of the adjoining section. Push in the Lock Tab
such that it becomes seated within the inward groove of
the adjoining section. This locks the joint in place. (Fig.
34)
Supporting DIRECT-TEMP: Vertical Support
Vertical installations can be supported by two methods:
Ceiling Support (CS) (used in flat ceiling installation)
comes with a support plate and a support collar. Install
it by screwing the support plate to the top of the prop-
erly framed ceiling joist opening, using screws provided.
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