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• Form I-UD-V-PV (Version D.1) Obsoletes I-UD-V-PV (Version D) Venting Requirements for Indoor, Power Vent Model UDAP and Model UDBP APPLIES TO: General This manual applies only to venting instructions and must be used with the installation manual. download Johnson Seahorse 4 Hp Outboard Manual more. Both manuals are shipped with the heater. If either manual is missing, contact your distributor before beginning installation. The instructions in this manual apply to fan type Model UDAP and blower type Model UDBP.

• Table of Contents 1.0 Venting Requirements General...............1 1.0 Venting Requirements...........2 2.0 Venting Requirements and Instructions - Residential Installation.. 3-5 2.1 Type of Vent Pipe Required for Vent Run.....3 2. download Case 590sm Service Manual here. 2 Vent Pipe Diameter and Vent Length.... • Residential Installation Only Model UDAP 30, 45, 60, 75, 100, 125 2.0 Venting Requirements and Instructions - Residential Installation A Category III vent as defined by the National Fuel Gas Code Z223.1 or CAN/CSA B149.1 and B149.2 is required for a residential installation of a Model UDAP. Some venting requirements will vary, however, depending on whether the vent is horizontal or vertical. Read and follow all of the requirements and instructions in Paragraphs 2.1 through 2.7. • Residential Installation Only Model UDAP Sizes 30, 45, 60, 75, 100, 125 2.0 Venting Requirements and Instructions - Residential Installation (cont’d) 2.5 Vent System Support Support horizontal runs every six feet (1.8M).