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TWIN PIPE PVC/CPVC VENTING GUIDE FOR CONDENSING
TANKLESS WATER HEATERS

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Summary of Contents for Circ-Logic RU80i

Page 1: ...TWIN PIPE PVC CPVC VENTING GUIDE FOR CONDENSING TANKLESS WATER HEATERS...

Page 2: ...Multiple Water Heaters 22 17 Vertical Termination of U Vent and Combustion Air Pipe on a Pitched Roof 22 18 Ubbink Concentric to Twin Pipe Adaptor 23 Tables 1 Vent and Air Piping Materials 5 2 Recomm...

Page 3: ...ERNATIVE TWIN PIPE PVC CPVC VENTING SYSTEM The newly certified vent system is comprised of a Concentric to Twin Pipe Adaptor adaptable to 3 and 4 inch sizes PVC CPVC pipes fittings and either the IPEX...

Page 4: ...ection of this document Contaminated intake air will damage the water heater resulting in possible severe personal injury death or substantial property damage Exhaust Provide exhaust vent piping to Wa...

Page 5: ...primer PVC ANSI ASTM D2564 CPVC ANSI ASTM F493 IPEX bird screens purchase separately Termination Vent Screens Polyethylene 3 Vent screen IPEX part 196051 4 Vent screen part 196052 Screens are frictio...

Page 6: ...ls Before installation consider where air has the ability to travel within the building to the water heater Where possible install the water heater in a sealed closet so that it is protected from the...

Page 7: ...snow level in your area Ref Description Canadian Installations US Installations A Clearance above grade veranda porch deck or balcony 12 inches 30 cm 12 inches 30 cm B Clearance to window or door tha...

Page 8: ...at same level 0 30 m to an inside corner 0 30 m between terminals at same level 24 V 0 61 m to wall or parapet 12 V V 60 V V 1 52 m between terminals at different levels Figure 2 Required Clearances...

Page 9: ...A blank copy of the Vent Length Calculation Sheet is located at the end of this guide Ensure switch 1 in the bank of eight tan dip switches is in OFF position if vent length is greater than 21ft 6 4m...

Page 10: ...ed into the straight pipe lengths below 20 6 1 10 3 0 5 1 5 5 1 5 of 90 Elbows each 5 equivalent feet Max straight pipe vent length in feet meters 0 45 13 7 55 16 8 60 18 3 60 18 3 1 40 12 2 50 15 2 5...

Page 11: ...ach 5 equivalent feet Max straight pipe vent length in feet meters 0 21 6 4 31 9 4 36 11 0 36 11 0 1 16 4 9 26 7 9 31 9 4 31 9 4 2 11 3 4 21 6 4 26 7 9 26 7 9 3 6 1 8 16 4 9 21 6 4 21 6 4 4 11 3 4 16...

Page 12: ...stems ULC S636 Components of any certified system CANNOT be substituted with any other vent system s or unlisted pipes and or fittings All listed components primers and glues are part of the certified...

Page 13: ...or other type of reducing fittings is required to transition to 4 pipe STEP 5 Apply lubricant to the gasket surface and coupling with finger prior to component attachment refer to installation exampl...

Page 14: ...mbly Configuration The adaptor as supplied requires no additional parts to be used with standard 3 3rd party solid core PVC CPVC pipes refer to Figure 6 below for required parts for 3 PVC CPVC assembl...

Page 15: ...ng material contact PVC CPVC manufacturer for a complete list IPEX Concentric Vent Kit CVK Installation For installations with multiple terminations maintain appropriate clearances between terminals r...

Page 16: ...been determined cut a hole in the roof or wall large enough to accommodate the outer pipe The size of the hole can vary greatly depending on the roof pitch 2 As per the procedures outlined solvent ce...

Page 17: ...o IPEX PVC CPVC FGV Concentric Vent Kit ONLY for required spacing for all other termination types refer to Figures 12 thru 16 NOTE Reference General Clearance Requirements section of this guide for im...

Page 18: ...C Low Profile Termination Configuration VENTING INSTALLATION SEQUENCE 1 Install the water heater 2 Determine the termination method sidewall or vertical concentric or separate pipes etc 3 Determine pr...

Page 19: ...kit Be sure to follow guidelines for solvent cementing as described in the System 696 Installation Guide 3 Use the supplied screws and anchors to secure the base to the wall a drilled 3 16 hole 1 3 16...

Page 20: ...nd as shown in Figures 12 and 13 If the vent is terminated on a sidewall which is subject to high winds it is recommended to terminate the vent using a tee A tee provides the best protection against w...

Page 21: ...terminate using a tee or combination of elbows per figures 14 and 15 The termination must be installed 12 30 5 cm above roof or the highest anticipated snow level 3 The vent must terminate vertically...

Page 22: ...E DO NOT use lubricant between two PVC CPVC components Refer to cement manufacturer instruction for specific instructions and handling NOTICE Certified PVC CPVC Vent Termination Options continued Pitc...

Page 23: ...cable WARNING Improper installation of vent system and components or failure to follow all installation instructions can result in property damage or serious injury Lubricant can be applied on the sea...

Page 24: ...10 Approved PVC CPVC Termination Components OEM OEM orCert Product Description Diagram Equivalent Length Ft IPEX Purchased separately 196006 197009 3 Inch 196021 197021 4 Inch System 636 PVC CPVC FGV...

Page 25: ...mber of fittings Equivalent Vent Length Total Equivalent Length 1 90 elbow x 5 2 45 elbow x 2 5 3 IPEX Low Profile Termination x 5 4 IPEX 4 Concentric Termination x 20 5 IPEX 3 Concentric Termination...

Page 26: ...26 NOTES...

Page 27: ...27 NOTES...

Page 28: ...100000357 01 3 2014...

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