Optima 45 - 3 | 15 |
VENTING - VERTICAL TERMINATION USING SIMPSON
The Optima
1.Maintain 1” (25 mm) 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 14 (Venting Chart) for the maximum vertical rise of the venting system.
2.Set the gas appliance in its desired location. Drop a plum 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 pre- viously 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
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” (254 mm) 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, neces- sary to reach from the Appliance adaptor
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” (25 mm). 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
NOTE: Apply high temperature sealant to inner and outer pipe on every Simpson
Sealant
Fig. 2 | Fig. 3 |
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