Rinnai RU98i Installation Manual download pdf (Page 2)

Rinnai CVent 2

Descripon

The CVent Common Venng system provides longer vent lengths and fewer wall or roof penetraons than

convenonal single-unit venng. For the exhaust ue, CVent ulizes a CSA-cered and tested polypropylene

venng material from Ubbink, the same supplier for Rinnai's innovave line of concentric venng. The various

secons are self locking and sealing and can be pushed together without use of cement or glue.

CVent is only for use in U.S. installaons and is not currently approved for use in Canada.

Installaon is cered for up to 10,200 feet. Refer to the installaon / operaons manual for the tankless

engine (RU98) for appropriate dip switch selecon. Refer to High Altude Installaon secon for

appropriate de-rate values.

Model Applicability

The common vent system is CSA cered (ANSI Z21.10.3, Gas Water Heaters Standards) for use only with the

Rinnai tankless condensing water heater RU98i (REU-KB3237FFUD-US).

Installer Qualicaons .......................................... 2

Descripon ............................................................ 2

Model Applicability ............................................... 2

Safety Symbols ...................................................... 3

Warranty and Liability Exclusions ......................... 3

Specicaons ........................................................ 3

High Altude Installaon ...................................... 4

Water Heater Installaon ..................................... 4

Parts/Kits ............................................................... 5

Sample Roof Installaon ....................................... 9

Sample Horizontal Terminaon Installaon………. 10

Spare Parts List………………………………………………….11

Venng Guidelines .............................................. 12

Maximum Equivalent Vent Length ...................... 13

CVent Terminaon Clearances ............................ 14

Exhaust Vent Terminaon Clearances ................ 15

CVent Maintenance Clearances .......................... 17

Water Heater Clearances .................................... 17

CVent Installaon Instrucons ............................ 18

Common Header Check valve Maintenance ....... 23

Final Checklist ...................................................... 24

Appendix

Ubbink CVent Assembly Instrucons .................. 25

A licensed professional must install the common

venng.

The installer should have skills such as

 connecng gas lines, water lines, valves, and

electricity

 knowledge of applicable naonal, state, and local

codes

If you lack these skills, contact a licensed professional.

Installer Qualicaons

Table of Contents

Improper installaon of the vent system and components, or failure to follow all installaon

instrucons, can result in serious injury.

WARNING

1 2 3 4 5 6 7 ... 33 34

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Rinnai RU98i Installation Manual Page 2

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