Installation Guide

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Polypropylene (PP) Common Venting Installation Instructions 1

Certified to ANSI Z21.10.3 - CSA 4.3

For U.S. and Canadian Installations

CERTIFIED FOR USE WITH

THE FOLLOWING RINNAI INDOOR

CONDENSING TANKLESS WATER HEATERS:

■ CU199i (REU-N3237FFC-US)

■ CU160i (REU-N2530FFC-US)

■ RU199i (REU-N3237FF-US)

■ RU180i (REU-N2934FF-US)

■ RU160i (REU-N2530FF-US)

■ RU130i (REU-N2024FF-US)

■ RUR199i (REU-NP3237FF-US)

■ RUR160i (REU-NP2530FF-US)

■ Demand Duo (CHS199100CU)

1-800-621-9419

Rinnai Customer Care. Monday to Friday

between 8 AM to 8 PM ET

rinnai.us

— Do not store or use gasoline or other ammable vapors and liquids in the vicinity of this or any other

appliance.

— WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electrical switch; do not use any phone in your building.

• Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instrucons.

• If you cannot reach your gas supplier, call the re department.

— Installaon and service must be performed by a licensed professional.

If the informaon in these instrucons is not followed exactly, a re or explosion

may result causing property damage, personal injury or death.

WARNING

READ AND SAVE THESE INSTRUCTIONS

This manual is a supplement to the appliance manual. Addional informaon can be

obtained from the Rinnai Water Heater Installaon and Operaon Manual.

INSTALLATION INSTRUCTIONS

Polypropylene (PP) Common Venng

3”, 4”, 6” Diameters

100000557 REVC 04/18

Summary of content (40 pages)

PAGE 1
-800-621-9419 Rinnai Customer Care. Monday to Friday between 8 AM to 8 PM ET rinnai.
PAGE 2
Welcome This manual provides installation instructions for Ubbink Polypropylene (PP) common venting and is a supplement to the Installation and Operations Manual supplied with the Rinnai Tankless Water Heater. Common venting must satisfy all the requirements of the Installation and Operations Manual, as well as the requirements in this manual.
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Safety READ ALL INSTRUCTIONS BEFORE INSTALLATION WARNING • • • • • • • • • If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury, or death. Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. WHAT TO DO IF YOU SMELL GAS: − Do not try to light any appliance. − Do not touch any electrical switch; do not use any phone in your building.
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About the Common Venting System The Common Vent system provides longer vent lengths and fewer wall or roof penetrations than conventional single-unit venting. Venting Guidelines WARNING Features include: • 3”, 4” and 6” common vent PPTL common vent components are approved for use in the U.S. only and not available for installations in Canada. • Canadian common vent installations must use 6” PPS (gray) common vent components. • Certified to ANSI Z21.10.3 - CSA 4.3 for U.S. and Canadian installations.
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Must Do • Information You must use vent components that are certified and listed with the water heater model. The vent system must vent directly to the outside of the building and use outside air or room air for combustion. Avoid dips or sags in horizontal vent runs by installing supports per the vent manufacturer’s instructions. Support horizontal vent runs a minimum of every four feet and all vertical vent runs a minimum of every six feet.
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3” Common Venting Topics in this Section: • 3” Direct Vent and Room Air • 3” Inline and Corner Kits 3” Direct Vent and Room Air Direct Vent Inline Corner AIR INTAKE EXHAUST AIR INTAKE Room Air • Refer to the Combustion Air section of this manual for room air requirements. Inline Corner EXHAUST Polypropylene (PP) Common Venting Installation Instructions Copyright © 2018 Rinnai America Corporation. All Rights Reserved.
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3” Inline and Corner Kits Direct Vent INLINE and CORNER (P/N: 790130) A Cut at this end Vent Tubes ‘A’ cut to length at the side indicated for inline system spacing A Room Air INLINE and CORNER (P/N: 790131) A Vent Tube ‘A’ cut to length at the side indicated for inline system spacing Cut at this end Polypropylene (PP) Common Venting Installation Instructions Copyright © 2018 Rinnai America Corporation. All Rights Reserved.
PAGE 8
4” Common Venting Topics in this Section: • 4” Direct Vent and Room Air • 4” Inline Add-On and Starter Kits • 4” Back-to-Back Add-On and Starter Kits 4” Direct Vent and Room Air Direct Vent • Cutting Line table applicable up to 4 units. Maximum 4 Units Inline Back-to-Back Inline # of Appl L= Back-to-Back # of Appl L= 1 5.5” 1+1a 5.5” 2 6.5” 2+2a 6.5” 3 7.5” 3+3a 7.5” 4 8.5” 4+4a 8.
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4” Inline Add-On and Starter Kits Direct Vent 4” ADD-ON (P/N: 790134) 4” STARTER (P/N: 790132) 4” ADD-ON (P/N: 790139) 4” STARTER (P/N: 790137) Room Air Polypropylene (PP) Common Venting Installation Instructions Copyright © 2018 Rinnai America Corporation. All Rights Reserved.
PAGE 10
4” Back-to-Back Add-On and Starter Kits Direct Vent 4” ADD-ON (P/N: 790142) 4” STARTER (P/N: 790132) 4” ADD-ON (P/N: 790143) 4” STARTER (P/N: 790137) Room Air Polypropylene (PP) Common Venting Installation Instructions Copyright © 2018 Rinnai America Corporation. All Rights Reserved.
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6” Common Venting Topics in this Section: • 6” Direct Vent and Room Air • 6” Inline Add-On and Starter Kits • 6” Back-to-Back Add-On and Starter Kits 6” Direct Vent and Room Air Direct Vent • Cutting Line table applicable up to 8 units. Maximum 8 Units Inline Back-to-Back Room Air • • Inline # of Appl L= Back-toBack # of Appl L= 1 5.5” 1+1a 5.5” 2 6.5” 2+2a 6.5” 3 7.5” 3+3a 7.5” 4 8.5” 4+4a 8.5” 5 9.5” 6 10.5” 7 11.5” 8 12.
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6” Inline Add-On and Starter Kits Direct Vent 6” ADD-ON (P/N: 790135 / *791021PPS) 6” STARTER (P/N: 790133 / *791020PPS) *PPS material listed to ULC-S636 for Canadian Installations *PPS material listed to ULC-S636 for Canadian Installations Room Air 6” ADD-ON (P/N: 790140 / *791024PPS) *PPS material listed to ULC-S636 for Canadian Installations Polypropylene (PP) Common Venting Installation Instructions Copyright © 2018 Rinnai America Corporation. All Rights Reserved.
PAGE 13
6” Back-to-Back Add-On and Starter Kits Direct Vent 6” ADD-ON (P/N: 790136 / *791022PPS) 6” STARTER (P/N: 790133 / *791020PPS) *PPS material listed to ULC-S636 for Canadian Installations *PPS material listed to ULC-S636 for Canadian Installations Room Air 6” ADD-ON (P/N: 790141 / *791025PPS) 6” STARTER (P/N: 790138 / *791023PPS) *PPS material listed to ULC-S636 for Canadian Installations Polypropylene (PP) Common Venting Installation Instructions Copyright © 2018 Rinnai America Corporation.
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Termination Kits *PPS material listed to ULC-S636 for Canadian Installations Roof Termination 6 inch: 790096 6 inch: *791030PPS 4 inch: 790095 Roof Termination 3 inch: 790125 Wall Terminal Kit 6 inch (Plastic): 790094 6 inch (PPS): *791029PPS 4 inch (Plastic): 790093 3 inch (Plastic): 790124 Roof Termination Shown with OPTIONAL Exhaust Flue Rain Cap Roof Termination (39” extension) 6 inch (stainless): 790103 Intake Rain Cap 6 inch: 780061 4 inch: 780060 Polypropylene (PP) Common Venting Installation
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Common Vent Components Images below are representative shape of actual components.
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Sample Horizontal Termination Assembly Support Brackets required 6 inch: 790087 / *791027PPS 4 inch: 790027 3 inch: 790121 Elbow Bracket 6 inch: 790092 4 inch: 790091 3 inch: 790123 3’ MAXIMUM HORIZONTAL DISTANCE BETWEEN BRACKETS. 6 inch: 790094 / *791029PPS 4 inch: 790093 3 inch: 790124 Wall termination Kit Combustion Air & Exhaust 7’ MAXIMUM VERTICAL DISTANCE BETWEEN BRACKETS. AT LEAST ONE BRACKET IS REQUIRED FOR EACH EXTENSION.
PAGE 17
Sample Vertical Termination Assembly-Room Air Support Brackets required 6 inch: 790089 / *791028PPS 4 inch: 790028 3 inch: 790122 39 inch Extension 6 inch: 790138 / *791020PPS 4 inch: 790137 Starter Kit 6 inch: 790136 / *791022PPS 4 inch: 790142 Back-to-Back Kit 6 inch: 790096 / *791030PPS 4 inch: 790095 3 inch: 790125 Roof termination 7’ MAXIMUM VERTICAL DISTANCE BETWEEN BRACKETS. AT LEAST ONE BRACKET IS REQUIRED FOR EACH EXTENSION.
PAGE 18
Maintenance Clearances If the vent system is to be enclosed, it is suggested that the design of the enclosure shall permit inspection of the vent system. The design of such enclosure shall be deemed acceptable by the installer or the local inspector. Water Heater Clearances Refer to the water heater installation and operation manual for minimum clearance requirements around the water heater.
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Horizontal Termination Clearances This appliance along with the Common Vent System is certified with the 3”, 4”, 6” Wall Termination mounted in the orientation shown below.
PAGE 20
Combustion Air Requirements Common Vent Applications Utilizing Room Air Common Vent Room Air Appliance Adapter Combustion Air Requirements This rack system requires adequate combustion air for ventilation and dilution of flue gases. Failure to provide adequate combustion air can result in unit failure, fire, explosion, serious bodily injury or death. Use the following methods to ensure adequate combustion air is available for correct and safe operation of this rack system.
PAGE 21
Combustion Air Requirements Louvers and Grills When sizing the permanent opening consideration must be taken for the design of the louvers or grills to maintain the required free area required for all gas utilizing equipment in the space. If the free area of the louver or grill design is not available, assume wood louvers will have 25% free area and metal louvers or grills will have 75% free area. Under no circumstance should the louver, grill or screen have openings smaller than 1/4”.
PAGE 22
Combustion Air Requirements Vent termination per ANSI Z223.1/NFPA 54. For clearances not specified in ANSI Z223.1/NFPA 54, clearances are in accordance with local installation codes and the requirements of the gas supplier. Exhaust When communicating indirectly with the outdoors through vertical ducts, each opening shall have a minimum free area of 1 in2/4000 Btu/hr (550 mm2/ kW) of total input rating of all appliances in the confined space.
PAGE 23
Exhaust Vent Termination Clearances Direct Vent for indoor models, you must install terminations to bring in combustion air and expel exhaust TERMINATION X AIR SUPPLY INLET V VENT TERMINAL Clearance in Ref. A also applies to anticipated snow line AREA WHERE TERMINAL IS NOT PERMITTTED SNOW Description Canadian Installations (CSA B149.1) U.S. Installations (ANSI Z223.1 /NFPA 54) Direct Vent (Indoor Unit) Direct Vent (Indoor Unit) Clearance above grade, veranda, porch, deck, or balcony 12 in.
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Exhaust Vent Termination Clearances Other than direct vent, when using room air for combustion, you must install terminations to expel exhaust. TERMINATION X AIR SUPPLY INLET V VENT TERMINAL Clearance in Ref. A also applies to anticipated snow line AREA WHERE TERMINAL IS NOT PERMITTTED SNOW Ref Canadian Installations (CSA B149.1) Other than direct vent (Outdoor unit and/or Room Air) Description U.S. Installations (ANSI Z223.
PAGE 25
Additional Clearances Check on whether local codes supersedes these clearances. • Avoid termination locations near a dryer vent. • Avoid termination locations near commercial cooking exhaust. • You must install a vent termination at least 12” (0.61 m ) to an inside corner above grade or snow line.
PAGE 26
Installation Instructions • After ensuring the water heaters are mounted securely and spaced 20.5” apart, install the appliance adapter on top of the water heaters. • • • • Exhaust Venting is designed for a 3° rise. When the water heaters are mounted at 20.5” spacing, the height increase is 1” per water heater. A 3” diameter extension pipe is included with the kit that must be cut to length to account for the rise from unit to unit.
PAGE 27
Installation Instructions Follow these Rinnai instructions, the Rinnai Installation and operation Manual and the Ubbink Vent System Assembly instructions located in the appendix of this manual. Install the venting according to one of the 2 configurations below. Do not locate the common vent header remotely from the water heaters. (Room air configurations follow the same instructions excluding information regarding air intake.
PAGE 28
Installation Instructions Recommended Spacing of Water Heaters 20.5” Spacing of the water heaters is critical for the common vent system to mounting easily and securely. The common vent headers are made for 20.5” spacing (center line to center line) between water heaters. If a different spacing is needed, please contact Rinnai concerning your application. Rinnai recommends using the Tankless Rack System (TRS) which is designed for 20.5” spacing.
PAGE 29
Installation Instructions (Condensate) Install the Condensate Trap and Drain Pipe The exhaust header collects condensate. A collector and self-priming trap is included with each starter kit. Condensate must be drained to prevent the malfunction, diagnostic code failures, or property damage. Condensate should be disposed according to local codes. Refer to the National Fuel Gas Code, ANSI Z223.1/NFPA 54, or the Natural Gas and Propane Installation Code, CSA B149.1 condensate disposal.
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Appendix A Ubbink Condensing Common Vent System Installation and Assembly Instructions Warranty and Liability Claims for personal and material damages are excluded, if they are due to any or several of the following reasons: • Use of the system not in accordance with the regulations. • Improper assembly and incorrect operation. • Faulty maintenance. • Non-compliance with the assembly and operating instructions. • Non-approved structural changes to the unit or to the individual components.
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List of Contents A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 Preface General and Local standards information Risk guidelines Transport and storage Tools and Workmanship General assembling Instructions Condensate and condensate drain Final Installation Checklist Application manufacturer’s Information Application manufacturer’s Information Application manufacturer’s Information 30 31 31 31 31 32 33 34 34 34 35 A1 Preface These installation instructions were compiled in accordance with the current state of technolo
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A2 General and Local standards information When installing and operating the Common Vent System, the following valid standards and regulations must be complied with and adhered to: • Local codes or, in the absence of local codes, with the National Fuel Gas Code, ANSI Z223.1/NFPA 54, or the Natural Gas and Propane Installation Code, CSA B149.1.
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The pipes and formed parts must be installed at an angle of 3° incline towards the heating appliance, to allow the condensate to dispose in accordance with regulations. 2” ( ) A6 General Assembly Instructions Correct Pitch Note: 3° Pitch equals a height difference of 2” per 3 ft (5.6 cm/meter) 3 ft ( ) Lubricant • • • • The seals and male ends of all common vent components must be lubricated before assembly. Use ONLY CENTROCERIN© lubricant or water to aid in the assembly of these vent components.
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A7 Condensate and condensate drain • • Condensate is produced in the Common Vent System when appliances are operating. • The disposal for the condensate can be accommodated via the appliances and / or separate condensate outlets in the Common Vent System. A condensate trap must be installed at any drain point to prevent flue gasses from exiting.
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A8 Final Installation Check List  All vent components are secure and fully engaged.  All seals are correctly positioned and included at every joint.  All exhaust vent runs include a minimum of a 3° incline (3/4” per ft or 5.6 cm/m)  All Condensate drains tubes are connected to a drain and comply with local code.  All condensate traps have been primed.  There are no obstructions in the combustion air or exhaust vent runs.
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A11 Application Manufacturer’s Information The manufacturer’s identification information as displayed below must be filled out and kept with the system chimney.
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100000557 Version C 04/2018