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Rheem ECOH160DV User Manual

Rheem ECOH160DV
72 pages
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94% CONDENSING
TANKLESS
WATER HEATER
AP15896-1(11/10)
Printed in USA
*All models available for natural gas (N) or
propane gas (P) usage.
Do not destroy manual. Please
read carefully and keep in a
safe place for future reference.
CERTIFIED
R
Direct Vent
Models
Rheem/EcoSense
RTGH-95DV*
RTGH-84V*
ECOH200DV*
ECOH160DV*
Paloma/Wai Wela
PHH-32RDV*
PHH-25RDV*
Ruud
RUTGH-95DV*
RUTGH-84DV*
Richmond
RMTGH95DV*
RMTGH84DV*
Outdoor
Models
Rheem/EcoSense
RTGH-95X*
RTGH-84X*
ECOH200X*
ECOH160X*
Paloma/Wai Wela
PHH-32ROF*
PHH-25ROF*
Ruud
RUTGH-95X*
RUTGH-84X*
Richmond
RMTGH95X*
RMTGH84X*
WARNING:
If the information in these
instructions is not followed
exactly, a fire or explosion
may result, causing death,
personal injury, or property
damage.
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.
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.
D
E
S
I
G
N
C
E
R
T
I
F
I
E
D
®
USE AND CARE MANUAL
With Installation Instructions
for the Installer
Water Heaters for Other Than
Recreational Vehicle Installation Only
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Rheem ECOH160DV Specifications

General IconGeneral
TypeTankless
Fuel TypeNatural Gas
Energy Factor0.82
Voltage120V
Activation Flow Rate0.5 GPM
Temperature Range98°F - 140°F
Maximum BTU160, 000 BTU/hr
Maximum Flow Rate8.0 GPM
PhaseSingle Phase

Summary

Safety Warnings and Procedures

General Safety Warnings

Important safety information regarding fire, explosion, and personal injury.

Gas Leak Emergency Procedure

Steps to follow if you smell gas.

Product Identification

Direct Vent and Outdoor Model Lists

Lists of available direct vent and outdoor models.

Water Heater Venting Safety

Venting Dangers and Precautions

Risks of improper venting, flammable vapors, and condensate.

Venting Requirements and Materials

Clearances, pipe types, and installation standards.

Water Supply Safety

Water Temperature and Scalding Hazards

Risks of high temperatures and scald prevention.

Water Supply Conditions and Maintenance

Required quality, connections, and freeze protection.

Natural Gas and LP Safety

Fuel Type and Leak Detection Safety

Warnings on conversion and detecting gas leaks.

Gas Installation and Operation Precautions

Codes, pressure, and shut-off procedures.

Pre-Operation Safety and Instructions

Before Operation Safety Checks

Reading labels, smelling gas, and knob handling.

Operating and Shutdown Procedures

Step-by-step guide for starting and stopping.

Electrical Safety

Electrical Hazards and Wiring Compliance

Shock risks, grounding, and repair limitations.

California Installation Requirements

Earthquake Bracing Guidelines

Specific bracing needs for California installations.

General Installation and Maintenance Safety

Installation Compliance and Precautions

Following codes, avoiding disassembly, and pre-operation checks.

Safety Precautions and Manual Reference

Reading manual, intended use, and saving instructions.

Preoperating Checklist

Steps to verify before starting the unit.

Product Specifications Diagrams

Direct-Vent and Outdoor Model Dimensions

Visual representation of unit dimensions.

Product Specifications Table

Model Specifications Comparison

Detailed technical data for different models.

General Descriptions

Direct-Vent Water Heater Diagram

Visual layout of components and connections.

General Descriptions

Outdoor Water Heater Diagram

Visual layout for outdoor models.

Using Your Water Heater

General Operating Safety

Flammable vapors and operating rules.

Water Temperature Safety and Adjustment

Risks of high temperatures and scald chart.

Setting the Water Temperature

Temperature Measurement and Control

Checking temperature and remote control functions.

Water Heater Operation Facts

Key safety points about temperature and operation.

Caring for Your Water Heater

Venting System and Condensate Collector Inspections

Annual checks and condensate handling.

Water Heater Inspections

Burner Inspection Procedure

Visual checks of the burner and flames.

Care and Cleaning

General Cleaning Safety and Procedure

Protecting against shock and cleaning the unit.

Water Filter Cleaning Steps

Procedure for cleaning the water filter.

Care and Cleaning (cont.)

Water Filter Maintenance Precautions

Cautions during filter removal and reinstallation.

Preventive Maintenance

Maintenance Importance and Tasks

User and professional maintenance schedules.

Draining the Water Heater

Draining Procedure Steps

Detailed steps for safely draining the unit.

Draining the Water Heater (cont.)

Re-servicing the Water Heater

Steps to put the unit back into service after draining.

Freeze Protection

Freeze Protection Methods and Warnings

Protecting the unit and pipes from freezing.

Vacation and Extended Shutdown

Shutdown and Freeze Protection Guidelines

Procedures for extended periods and freezing conditions.

Troubleshooting Chart

Troubleshooting Guide Introduction

How to use the chart and safety reminders.

Common Problems and Solutions

Diagnosing and fixing common issues.

Troubleshooting Chart (cont.)

Additional Troubleshooting Scenarios

Addressing water temperature and fan issues.

Service Error Code Chart

Error Code Diagnosis and Response

Understanding and reacting to error codes.

Service Error Code Chart (cont.)

Specific Error Codes and Solutions

Detailed list of error codes.

Call for Assistance

Contacting Service Professionals

Who to call and what information to provide.

Installation Standards and Location

Compliance with Codes and Standards

Adhering to regulations.

Choosing a Safe Installation Location

Fire hazards and location requirements.

Installation Location Requirements

Venting and Clearance Requirements

Sealing, insulation, and prohibited locations.

Product Inspection and Installation Environment

Initial Unit Inspection

Checking for damage and parts.

Corrosive Atmosphere Considerations

Avoiding damaging air supply.

Direct-Vent Water Heater Installation

Typical Installation Diagram

Visual guide for direct-vent setup.

Outdoor Water Heater Installation

Outdoor Installation Warning and Diagram

Safety for outdoor units and visual layout.

Mounting the Water Heater

Wall Mounting and Electrical Requirements

Securing the unit and power supply.

Venting for Direct-Vent Water Heater

Venting Dangers, Requirements, and Materials

Safety, codes, and approved vent pipes.

Recommended Vent Lengths

Charts for pipe length calculations.

Venting Installation Details

Vent Pipe Support, Slope, and Pre-existing Systems

Proper installation and inspection.

Massachusetts Venting Regulations

CO Detector and Signage Requirements

Specific state rules for CO detectors and signs.

Horizontal Vent Terminal Location

Vent Terminal Placement Diagram

Visual guide for correct placement.

Vent Terminal Clearance Requirements

Dimensional Clearances for Vent Terminals

Detailed chart for US and Canadian requirements.

Horizontal Vent Considerations

Condensate, Placement, and Protection

Managing moisture, avoiding obstacles, and protecting surfaces.

Tankless Water Heater Venting

Multi-Unit Spacing and Outdoor Placement

Requirements for multiple units and outdoor units.

Horizontal Vent Installation

Solvent Cement Safety and Pipe Joining

Flammable cement handling and pipe connection steps.

Horizontal Vent Installation (cont.)

Fasteners, Sealing, and Hole Cutting

Attaching vent components and preparing openings.

Alternative Horizontal Vent Installations

Vent Kit Diagrams and Layout

Visuals of concentric and flat kits.

Vertical Vent Installation

Venting Dangers, Support, and Condensate Traps

Safety, structural support, and condensate management.

Vertical Vent Terminal Location

Clearance Requirements Chart

Dimensional data for vertical vent placement.

Standard Vertical Vent Termination

Diagram of Vertical Venting Setup

Visual representation of roof termination.

Alternative Vertical Vent Termination

Diagrams for Alternative Vertical Kits

Visuals for different termination kits.

Water Supply Requirements

Water Quality, Thermal Expansion, and Pressure

Conditions for safe operation and expansion tank needs.

Water Supply Installation

Pressure, Flow, and Connection Procedures

Ensuring proper water flow and connections.

Water Supply Installation (cont.)

Filter Maintenance and Hot Water Outlet Connections

Filter care and piping guidelines.

Water Piping Arrangement with Service Valve Kit

Benefits of using service valve kits.

Relief Valve Requirements

Relief Valve Specifications and Installation

Safety ratings, discharge piping, and notices.

Pipe Insulation and Condensate Drainage

Insulation and Condensate Management

Protecting pipes from freezing and ensuring proper condensate flow.

Gas Supply Connections

Fuel Type, Piping, and Connector Safety

Warnings on conversion and detecting gas leaks.

Gas Piping Sizing

Pipe Sizing Procedures and Tables

Calculating and selecting appropriate pipe sizes for gas supply.

Gas Supply Installation

Gas Line Installation Steps and Pressure

Installing valves, sediment traps, and checking pressure.

Leak and Pressure Testing

Gas Leak Testing and Pressure Testing Procedures

Methods for ensuring system integrity.

High-Altitude Installation and Electrical Wiring

Altitude Adjustments and Electrical Safety

Requirements for high altitudes and electrical installation safety.

Electrical Wiring

Wiring Diagram

Visual representation of electrical connections.

Remote Control Selection and Location

Remote Control Placement and Model Options

Guidelines for installing remotes and available models.

Remote Control Installation

Wall Mounting and Cable Connection Steps

Procedures for attaching the remote to the wall.

Connecting Remote Control to Water Heater

Remote Control Wiring and Final Checks

Connecting cables and verifying operation.

Insulation Blankets and Installation Precautions

Insulation Blanket Use and Warnings

When they are needed and safety considerations.

General Installation Precautions

Key checks before operation.

Installation Checklist

Comprehensive Installation Verification

Checklist for location, venting, supply, gas, electrical, and condensate.

Lighting the Water Heater

Pre-Lighting Safety and Operating Instructions

Essential safety checks and startup procedures.

Lighting and Shutting Off the Water Heater

Step-by-Step Operation Guide

Detailed instructions for starting and stopping the unit.

Setting the Water Temperature

Temperature Adjustment Warnings and Procedure

Safety risks and steps for adjusting temperature.

Setting the Water Temperature (cont.)

Completing Temperature Setting Adjustments

Final steps for setting desired temperatures.

Minimum Temperature Adjustment and High-Altitude Settings

Adjusting Minimum Temperature and Altitude Switch Settings

Procedures for low temps and high altitudes.

High-Altitude DIP Switch Adjustments

DIP Switch Configuration for Altitude

Specific steps for different elevation ranges.

Parts Replacement

Parts Ordering Information and Diagrams

How to order parts and labeled components.

Parts Ordering (cont.)

Outdoor Components Diagram and List

Labeled parts for outdoor models.

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