Desa (V)gM36 Owner's Operation And Installation Manual

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www.desatech.com112435-01M Venting inStallationContinuedUSING ELBOW OFFSETS (30E-12DM)1. To achieve desired offset, you may installcombinations of 12", 18", 24", 36" and 48"length of double wall pipe (see offset chartand Figure 7).OFFSET CHART (22-50 FT. SYSTEM HEIGHT)Figure 7 - Typical Offset TerminationsReturnElbowOffsetElbowReturnElbowOffsetElbow6' Max.6' Max.6' Max.6' Max.6' Max.6' Max.ReturnElbowOffsetElbowOffsetElbowReturnElbowA B COffsetElbowCeilingSupport Pipe12S-12DMReturnElbowFigure 8 - Ceiling Support Pipe12S-12DM2" Min.StrapsStrapsStrapsStrapsDetail AReturn ElbowDetail BAngle FirestopSee Detail ASee Detail B2. Chimney weight above offset rests on returnelbow. Straps must be securely nailed to raftersor joists (see Figure 8, details a and b).3. Maximum length of pipe between supports(return elbow or 12S-12DM) is 6' of anglerun. Maximum of two 6' angle run sectionsper chimney system (see Figure 7).4. All pipe connections between the offset andreturn must be secured with two screws onthe outer pipe only (see Figure 9, page 10).Do not penetrate the inner stainless.OFFSET RISE CHIMNEY LENGTHA B 12" 18" 24" 36" 48"4 3/8" 16 3/8" ELBOW SET ONLY 3/4" 25 1/2" 112 3/4" 30 3/4" 115" 34 3/4" 118" 40" 1 121 1/4" 46 1/4" 123 3/4" 4 1/4" 1 12 3/4" 56 3/4" 130" 60 3/4" 1 133" 66" 136" 1" 1 138 1/4" 5" 241 1/4" 80 1/4" 1 1 145" 86 3/4" 246 3/4" 8 1/2" 1 1 151" " 1 153 1/4" 101" 256 1/4" 106 1/4" 25 1/4" 111 1/2" 1 1 161 3/4" 115 1/2" 1 264 3/4" 120 3/4" 1 268 1/4" 12" 2 10" 130" 1 1 24 1/4" 13 1/2" 1 2 16 3/4" 141 1/2" 1 2 1 3/4" 146 3/4" 4