Rheem RTGH-95DVLN-3 User Manual

Do not destroy this manual. Please read carefully
and keep in a safe place for future reference.
CERTIFIED
R
Print 2D
Bar Code
Here
www.ahridirectory.org
ULTRA
Low NOx
Emissions
SCAQMD Rule 1146.2
WARNING:
If the information in these instructions is not
followed exactly, a fire or explosion may result,
causing death, personal injury, or property dam-
age.
For Your Safety!
• Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or
any other appliance. To do so may result in an
explosion or fire.
• Installation and service must be performed by
a qualified installer, service agency, or the gas
supplier.
D
E
S
I
G
N
C
E
R
T
I
F
I
E
D
®
SUPER HIGH EFFICIENCY CONDENSING
TANKLESS WATER HEATER
USE AND CARE MANUAL
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.
• Do not return to your home until authorized by
the gas supplier or fire department.
With Installation Instructions
for the Installer
Condensing Direct Vent
199,900 Btu/hr, 180,000 Btu/hr,
157,000 Btu/hr and 120,000 Btu/hr Models
AP21820 Rev 04

Rheem RTGH-95DVLN-3 Specifications

General

Brand	Rheem
Model	RTGH-95DVLN-3
Category	Water Heater
Language	English

Summary

Important Safety Information

Safety Precautions

General safety guidelines and warnings for operating the water heater.

Water Heater Venting Safety

Safety precautions related to water heater venting, including dangers of carbon monoxide.

Water Supply Safety

Safety information regarding water temperature settings and supply.

Natural Gas and Liquefied Petroleum Safety

Safety precautions specific to natural gas and LP gas usage.

For Your Safety Read Before Operating

Crucial safety instructions to follow before operating the water heater.

Electrical Safety

Safety instructions related to electrical connections and hazards.

Product Information

General Installation and Maintenance Safety

General safety guidelines for installation and maintenance of the water heater.

Specifications – Direct-Vent Models

Specifications

Installation Instructions For The Contractor

Choosing a Location

Guidelines for selecting a safe and appropriate location for water heater installation.

Water Heater Installation

Venting for Direct-Vent Water Heater

Vent Lengths

Charts and guidelines for calculating and determining appropriate vent lengths.

Vent Length and High Altitude DIP Switch Adjustments

Instructions for adjusting DIP switches for vent length and altitude.

Horizontal Vent Terminal Location

Charts detailing minimum dimensional requirements for vent terminal placement.

Horizontal Vent Considerations

Horizontal Vent Installation

Vent Riser Terminal Installation

Vertical Vent Installation

Vertical Vent Terminal Location

Chart detailing minimum dimensional requirements for vertical vent terminal placement.

Standard Vertical Vent Termination

Gas Supply

Gas Supply System

Guidelines for the gas supply system, including type and safety.

Gas Piping

Procedure for sizing gas piping to ensure proper operation of the water heater.

Determining the Required Pipe Size

How to determine the correct gas pipe size based on BTU capacity and pressure drop.

Gas Supply Installation

Step-by-step visual guide for installing the gas supply line and components.

Leak Testing

Procedures for safely testing the gas supply system for leaks.

Pressure Testing the Gas Supply System

Guidelines for pressure testing the gas supply system, including isolation procedures.

High-Altitude Installation

Electrical Wiring

Hard-Wiring the Electrical Connections

Wiring Diagram

Schematic diagram illustrating the electrical wiring connections for the water heater.

Activating the Water Heater

FOR YOUR SAFETY READ BEFORE OPERATING

Crucial safety instructions to follow before operating the water heater.

Shutting Off the Water Heater

Safety Precautions

General safety warnings and precautions to be aware of while using the water heater.

Setting the Water Temperature

Maximum Temperature Adjustment by Main Display Control

Recirculation Pump Control

Recirculation Pump Control Installation

Recirculation Pump Control Operation

Water Saving Control

Water Saving Control

Water Heater Inspections

Venting System (Direct Vent Only)

Condensate Collector

Burner

Care and Cleaning

Water Filter Cleaning

Preventive Maintenance

User Preventive Maintenance

Professional Preventive Maintenance

Draining the Water Heater

Freeze Protection

Running Water Freeze Protection

Vacation and Extended Shutdown

Troubleshooting Chart

Guide to diagnose and fix common water heater problems.

Service Error Code Chart

If You Need Service

Call for Assistance

Information on how to obtain service assistance and what information to provide.

Maintenance Notice

Error Code 88 Clearing

Steps to clear error code 88 after performing maintenance activities.