Rinnai RE199EN - User Manual

This Installation Manual covers the setup of Rinnai tankless water heaters in recessed or outdoor installations, including recess box assembly, plumbing integration, clearance requirements, and compliance with building codes. The guide addresses both indoor recess boxes–requiring precise wall preparation, drilling for plumbing lines, and sealing–to ensure proper ventilation and structural support. It also details critical venting standards for outdoor units, specifying minimum clearances from surrounding structures (e.g., windows, decks) to prevent fire hazards, based on ANSI/NFPA 54 guidelines. Additionally, it outlines final assembly steps like pipe connections, hardware installation, and compliance checks, ensuring safe integration of the water heater system.

Page 1 – Recess Box Installation and Parts List
Page 2 – Tankless Water Heater Recess Box Location Requirements
Page 3 – Recess Box Preparation and Securing
Page 4 – Water Heater Mounting into Recess Box
Page 5 – Mounting Water Heater in Recess Box
Page 6 – Final Assembly and Code Compliance
Page 7 – Outdoor Vent Clearance Requirements
Page 8 – External Water Heater Clearance Guidelines
Page 9 – Outdoor Model Connection Alignment

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Item #

Item

Qty

Recess Box

Front Door Panel

Hanging Bracket

Mounting Screw (for top mounting bracket)

Lock Nut with Washer

Locking Bracket

Instructions (includes piping template)

•

Standard plumbing tools such as pliers, pipe wrenches and screwdrivers

•

Isolation Valve Kit (Included with REP Models)

•

Sealant and Caulk Gun

•

Drill (for drilling the piping connections)

•

Screws (galvanized or stainless steel to secure the recess box to the building structure)

•

Phillips Head Screwdriver

Before installation, please make sure all parts are located inside the product box.

IMPORTANT:

The

template used to
drill the piping
connections is
located on the last
page of this
document.

WARNING

•

Failure to correctly assemble the components according to these instructions may result in electric shock, injury,
or death.

•

A trained and qualified professional must install and inspect the recess box before use.

•

Warranty will be voided due to any improper installation.

•

For outdoor installation only.

•

Make sure the recess box is accessible for servicing and maintenance of the water heater.

•

RE199e (REU

VE2737WD

US)

•

REP199e (REU

VEP2730WD

US)

•

RE180e (REU

VE2432WD

US)

•

RE160e (REU

VE2125W D

US)

•

REP160e (REU

VEP2125WD

US)

•

RE140e (REU

VE1720W D

US)

Recess Box Part Number

RGBRE

For Use with Rinnai Tankless
Water Heater Models:

Figure 1

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About this manual

Brand: Rinnai
Model: RE199EN
Document type: User Manual
Category: Water Heater
Language(s): English
Pages: 9
File size: 2.4 MB
Format: PDF

Summary

Page 1 - Recess Box Installation and Parts List

Installation instructions for the Rinnai RGBRE Recess Box, including compatible water heater models, safety warnings, included parts, and a diagram of the recess box.

Page 2 - Tankless Water Heater Recess Box Location Requirements

Installation requirements for a tankless water heater recess box, detailing required location clearances, wall preparation steps, and dimensional requirements based on building codes.

Page 3 - Recess Box Preparation and Securing

Procedure for preparing the recess box by drilling plumbing lines, applying sealant, and securing the unit to the building structure using screws.