Rheem PROE20 1 RH POU User Manual

Water Heaters
Electric Point of Use
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.
!
!
2½ through 30 Gallon Capacity
120 and 240 Volt Models
®
LISTED
786H
AP10227-11 (01/05)
Printed in USA
Use & Care Manual
With Installation Instructions for the Installer
IMPORTANT SAFETY INSTRUCTIONS
WARNING—When using electrical appliances, basic safety precautions to reduce the risk of fire, electric shock, or injury to persons
should be followed, including:
READ ALL INSTRUCTIONS BEFORE USING THIS
WATER HEATER.
The cord and plug connected water heater covered in this
manual (2
1
/2 gallon models) must be grounded. Connect
only to properly grounded outlet. See “Electrical
Connections” section on page 8.
Install or locate this water heater in accordance with the
provided installation instructions.
Use this water heater only for its intended use as
described in this manual.
As with any appliance, close supervision is necessary
when used by children.
Do Not use an extension cord set with this water heater. If
no receptacle is available adjacent to the water heater,
contact a qualified electrician to have one properly installed.
Do Not operate this water heater if it has a damaged cord
or plug, if it is not working properly, or if it has been
damaged or dropped.
This water heater should be serviced only by qualified
service personnel. Contact nearest authorized service
center for examination, repair or adjustment.
SAVE THESE
INSTRUCTIONS

Rheem PROE20 1 RH POU Specifications

General

Brand	Rheem
Model	PROE20 1 RH POU
Category	Water Heater
Language	English

Summary

Safety Information

Important Safety Instructions

Key safety rules to follow before and during water heater use.

California Proposition 65 Warning

Warns about chemicals causing cancer, birth defects, or reproductive harm.

Water Temperature Adjustment

Discusses setting the water heater's thermostat for safety and energy conservation.

Time/Temperature Relationship in Scalds

Details how water temperature and time affect scald severity.

California Installation Safety

Specific safety requirements for water heater installation in California.

Water Heater Installation

Location Requirements

Guidelines for choosing a safe and suitable location for the water heater.

Water Supply Connections

Instructions for connecting hot and cold water lines to the heater.

Thermal Expansion Control

Explains thermal expansion and methods to control it.

Electrical Connections

Details on wiring and connecting the water heater to power.

Installation Checklist

A comprehensive list of steps to ensure proper installation.

Operating the Water Heater

Hydrogen Gas Precautions

Warns about potential hydrogen gas buildup and safety measures.

Safety Controls and ECO Reset

Explains the temperature limiting control (ECO) and how to reset it.

Water Temperature Setting

Instructions for adjusting the water temperature thermostat.

Care and Cleaning

Draining the Water Heater

Step-by-step instructions for draining the water heater tank.

Routine Preventative Maintenance

Recommended maintenance tasks for ensuring long-term service.

Vacation and Extended Shut-Down

Guidelines for preparing the water heater for periods of non-use.

Troubleshooting and Service

Troubleshooting Tips

Common problems, their causes, and recommended solutions.

If You Need Service

Contact information and required details for service assistance.

Replacement Parts and Wiring

Parts Ordering Instructions

How to order replacement parts, including necessary information.

21/2 Gallon Models Parts

Diagram and list of replacement parts for 21/2 gallon models.

6, 10, 20 Gallon Models Parts

Diagram and list of replacement parts for 6, 10, 20 gallon models.

30 Gallon Models Parts

Diagram and list of replacement parts for 30 gallon models.

Wiring Diagrams

Schematics illustrating the electrical connections for different models.