Archgard 72-DVT30N - Manual (Page 16)

72-DVT30N
16
1. Maintain 1” (25mm) clearance (air space) to combustibles when passing through ceilings,
walls, roof, enclosures, attic rafter, or other nearby combustible surfaces. Do not pack air
spaces with insulation. Check Page 15 (Venting Chart) for the maximum vertical rise of the
venting system.
2. Set the gas appliance in its desired location. Drop a plumb bob down from the ceiling to the
position of the appliance flue exit, and mark the location where the vent will penetrate the
ceiling. Drill a small hole at this point. Next, drop a plumb bob from the roof to the hole previ-
ously drilled in the ceiling, and mark the spot where the vent will penetrate the roof.
NOTE: you may wish to relocate the appliance to avoid cutting load-bearing members.
3. A Firestop spacer must be installed in the floor or ceiling of every level. To install the Firestop
spacer in a flat ceiling cut a 10” (254mm) square hole. Frame the hole as shown Fig. 1 and
install the firestop.
4. Assemble the desired lengths of pipe and elbows as outlined in the Venting Chart, necessary
to reach from the Appliance adaptor (999-DV-SDA). Ensure that all Simpson Dura-Vent and/
or flexible gas liners are connected and sealed accordingly.
5. Cut a hole in the roof centered on the small drill hole placed in the roof as outlined in Step 2.
6. The hole should be of sufficient size to meet the minimum requirements for each combusti-
bles of 1” (25mm). Slip the flashing under the shingles (shingles should overlap half of the
flashing) as per Fig.2.
7. Continue to assemble pipe lengths and/or flexible gas venting.
8. Ensure vent is vertical and secure the base of the flashing to the roof with roofing nails;
slide storm collar over the section and seal with a mastic.
9. Install the vertical termination cap by twist-locking it.
10” (254mm)
square hole
framing
firestop
spacer
Fig. 1
Fig. 2
Female
Locking
Lugs
Male
Locking
Lugs
Fig. 3
VENTING - VERTICAL TERMINATION USING SIMPSON DURA-VENT PIPE ONLY
The Optima 72 can be vented vertically using Simpson Dura-Vent Direct Vent System. To vent
using Simpson Dura-Vent exclusively, you must use the Archgard 999-DV-SDA Adapter and
connect the adapter to the top of flue outlet on the Optima 72 gas fireplace.