Rheem RTE 3 User Manual

Water Heaters
Electric Tankless
The purpose of this manual is twofold:
one, to provide the installer with the basic
directions and recommendations for the proper
installation and adjustment of the water heater;
and two, for the owner–operator, to explain
the features, operation, safety precautions,
maintenance and troubleshooting of the water
heater. This manual also includes a parts list.
It is imperative that all persons who are
expected to install, operate or adjust this
water heater read the instructions carefully
so they may understand how to perform
these operations. If you do not understand
these instructions or any terms within it, seek
professional advice.
Any questions regarding the operation,
maintenance, service or warranty of this
water heater should be directed to the seller
from whom it was purchased. If additional
information is required, refer to the section on
“If you need service.”
Do not destroy this manual. Please read
carefully and keep in a safe place for future
reference.
!
Recognize this symbol as an
indication of Important Safety
Information!
!
California Proposition 65 Warning:
This product contains chemicals
known to the State of California to
cause cancer, birth defects or other
reproductive harm.
AP15447 (10/10)
Printed in USA.
Use & Care Manual
With Installation Instructions for the Installer
US
M E T
®
Complies with UL 499.

Rheem RTE 3 Specifications

General

Brand	Rheem
Model	RTE 3
Category	Water Heater
Language	English

Summary

Read Safety Information

Important Safety Information

Water Temperature Setting

Discusses water temperatures, scalding risks, and setting the thermostat.

Installations in California

Details California-specific requirements for bracing water heaters during earthquakes.

Safety Precautions

Lists general safety precautions for installation and operation of the water heater.

Installing the Water Heater

Local Installation Regulations

Covers compliance with national, local, and utility codes for installation.

Location Selection

Guidance on selecting a suitable indoor location, protected from freezing.

Shipment Inspection

Instructions to check the water heater for damage and verify power supply.

Water Connections

Details on connecting hot and cold water lines using compression fittings.

Electrical Connections

Information on separate branch circuits, wiring, grounding, and safety precautions.

Installation Checklist

Operating the Water Heater

Safety Precautions During Operation

Safety measures to follow before and during water heater operation.

Preparation for Operation

Steps to prepare the unit for use, including purging air and turning on power.

Water Temperature Adjustment

Guidance on adjusting water temperature, scalding risks, and energy conservation.

Time and Temperature Relationship in Scalds

Maintenance Overview

Normal Maintenance

Information on the unit's design for long service life and minimal regular maintenance.

Routine Preventative Maintenance

Suggestion to establish and follow a routine preventive maintenance program.

Before You Call For Service

Troubleshooting Tips

A chart of common problems, their possible causes, and recommended solutions.

Specifications

Electrical Specifications

Details on voltage, amperage, wire gauge, and dimensions for different models.

Temperature Rise and GPM Flow

Chart showing temperature rise and gallons per minute flow rates for various models.

If You Need Service