Vermont Casting Selkirk Direct-TempMetalbestos Direct Vent System, Installation Instructions

Stardance Direct Vent/Natural Vent Gas Heater

#7DVAIS Attic Insulation Shield

Use Four	#7DVFS
8dNails	Firestop in
	Upper Floor

		#7DVFS
ST222		Firestop in
		Ceiling
Fig. 31	Install firestops and attic insulation shield.
Use three #5 sheet
metal screws at
each joint
		Sealant
Storm Collar
		Upper
		edge of
		flange
		goes under
		upper
		shingles
Flashing
	#7DVSKV
	(A, B, or F)
	RoofSupport	ST221
Fig. 32	Roof support and flashing.

9.Install the storm collar and seal around the joints. (Fig. 32)

10.Add additional vent lengths to achieve the proper overall height.

11.Apply cement to the inner and outer termination col- lars and install the terminal cap.

Selkirk Direct-Temp Metalbestos Direct

Vent System

Installation Instructions

1.Determine whether the length of pipe fits the appli- ance outlet by attempting to engage the parts. If the parts engage smoothly, proceed to Step 2. If ob- structions, interference or loose fit is noted, contact the appliance manufacturer or Selkirk Metalbestos with the dimensions of the appliance outlet.

2.Slide the length of pipe over the appliance outlet a minimum of 1¹⁄₂” and screw to the appliance outlet collar using a minimum of two (2) #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) 6⁵⁄₈” (OD) or 5” (ID) by 8” (OD) “Twist Lock” Style, direct vent sys- tems.

The adapter incorporates two (2) indentations on the outer 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 appliance 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 construction.

Framing Dimension Table 1

Model DT	Ceiling Support (CS)	Cathedral Ceiling	Wall Thimble
Diameter	Firestop (FS)	Support CCS)	(WT)
4”	8¹⁄₄” x 8¹⁄₄”	10⁵⁄₈” x 10⁵⁄₈”	8¹⁄₄” x 8¹⁄₄”
5”	10¹⁄₈” x 10¹⁄₈”	14¹⁄₂” x 14¹⁄₂”	10¹⁄₈” x 10¹⁄₈”

Use of Sealant

It is not required to apply or use sealant on the inner liner of DIRECT-TEMP. For outer wall joint sealing considerations, follow appliance manufacturer recom- mendations.

Joint Connection:

The pipe and elbows are assembled by inserting the outlet (male) end of a length of pipe or elbow into the in- let (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. 33)

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