Rinnai REU-VAM1620W User Manual

— 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.
• Immediately call your gas supplier from a neighbor’s phone.
Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire
department.
— Installation and service must be performed by a qualified
installer, service agency or the gas supplier.
WARNING: If the information in these instructions is not
followed exactly, a fire or explosion may result causing
property damage, personal injury or death.
Operation and Installation Manual
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
Table of Contents.................................. 2
Consumer Safety Information ............... 4
Operating Instructions ........................... 5
Maintenance ......................................... 12
Front Panel Display and Error Codes ... 13
Installation Instructions ......................... 17
Consumer Support ................................ 36
V53e ................... REU-VAM1620W
Outdoor Tankless Water Heater
ANS Z21.10.3
●
CSA 4.3
For Residential Applications
Register your product at www.rinnairegistration.com or
call 1-866-RINNAI1 (746-6241)

Rinnai REU-VAM1620W Specifications

General

Brand	Rinnai
Model	REU-VAM1620W
Category	Water Heater
Language	English

Summary

Consumer Safety Information

Safety Behaviors and Practices

Guidelines for safe operation and maintenance, including keeping area clear and avoiding alterations.

Safety Features

Describes built-in safety mechanisms like overheat and flame failure protection.

Operating Instructions

Setting the Temperature with a Remote Controller

Temperature Options Without a Remote Controller

Explains how to set temperature without a remote controller using dip switches.

Maintenance

Cleaning

Instructions for cleaning the appliance, including water inlet filter and internal components.

Front Panel Display and Error Codes

Error Code Table

Provides a table of error codes, their faults, and recommended remedies.

Trouble Shooting for Common Issues

Accessing Operating Information with a Remote Controller

How to view error codes and operating data using the MC-91 remote controller.

Water Quality

Flushing the Heat Exchanger (Error Code: LC or 00)

Installation Instructions

Clearances from Appliance

Electrical Connection

Gas Piping

Water Piping

General Instructions

Pressure Relief Valve

Requirements and installation guidance for the pressure relief valve.

Freeze Protection

Explanation of freeze protection features and recommendations for solenoid valves.

Recommended Piping for Basic Installation

Flue Terminal Clearances (ANS Z21.10.3 • CSA 4.3)

Consumer Support

Limited Warranty

Details what is covered under the Rinnai warranty and the duration of coverage.