Vermont Casting DV580 manual Rear Wall Vent Installation Twist Lock Pipe

DV360/580 Series Direct Vent Gas Fireplace

Vent Opening for Combustible Walls

		Rear Vent Top View
20” (508 mm)
	Max.

DVR584-600

Fig. 20 Rear vent application, no elbows.

9³⁄₈”

(240 mm)

10³⁄₈”

(265 mm)

Fireplace Hearth

Framing Detail

	20”	20”
		(508 mm)
	(508 mm)
		Max.
	Max.
45°		45°

Rear Vent Top View, Corner Installation FP836

Fig. 21 Rear vent application, one 45° elbow.

Rear Wall Vent Installation

Twist Lock Pipe

Step 1

Locate and cut the vent opening in the wall.

For combustible walls first frame in opening. (Fig. 22)

NOTE: When using flex vent, the opening will have to be measured according to the 1” (25mm) rise in 24” (610mm) vertical run.

Combustible Walls: Cut a 10³⁄₈”H x 9³⁄₈” W (265 mm x 240 mm) hole through the exterior wall and frame as shown. (Fig. 22)

Noncombustible Walls: Hole opening should be 7¹⁄₂” (191mm) diameter.

Zero clearance sleeve is only required for combustible walls.

Step 2

Measure wall thickness and cut zero clearance sleeve parts to proper length (Maximum 12” / 305 mm). As- semble sleeve to its maximum opening (10³⁄₈” x 9³₈”) and attach to firestop assembly. (Fig. 23)

Step 3

Measure the horizontal length requirement for the vent- ing including a 2” (51 mm) overlap, i.e. from the elbow to the outside wall face plus 2” (51 mm). (Fig. 21)

Opening for Noncombustible Wall

7¹⁄₂”
(190 mm)
Fireplace Hearth	VO584-100
Fig. 22 Locate vent opening on wall.
Adjustable Zero	Max. Length
Clearance Sleeve	12” (305 mm)
	#8 Screws (2)
#8 Screws
(2)
	#8 Screws
	(2)
Firestop
Adjustable Zero
Clearance Sleeve	ZCS101
Fig. 23 Adjustable zero clearance sleeve.

Step 4

Install the 4” (102 mm) vent to the appliance collar and secure with 3 sheet metal screws. Install the 7” (178

mm)vent pipe to the appliance collar and secure with 3 sheet metal screws. It is not necessary to seal this con- nection. If a 45° elbow is being used attach the elbow to the appliance in the same manner then attach the venting to the elbow.

It is critical that there is no downward slope away from the appliance when con- necting the vent or elbow.

Step 5

Guide the venting through the vent hole as you place the appliance in its installed position. Guide the 4”

(102 mm) and 7” (178 mm) collar of the vent termina- tion into the outer ends of the venting. Do not force the termination. If the vent pipes do not align with the termination, remove and realign the venting at the appli- ance flue collars. (Fig. 24) Attach the termination to the wall as outlined in the instruction sheet supplied with the termination.

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