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Rheem ECOH200X User Manual

Rheem ECOH200X
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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 ECOH200X Specifications

General IconGeneral
BrandRheem
ModelECOH200X
CategoryWater Heater
LanguageEnglish

Summary

Safety Warnings and Precautions

General Safety Warnings

Covers fire, explosion, and flammable material risks.

Gas Leak Emergency Procedures

Steps to take if you smell gas, including immediate actions and contacting authorities.

Important Safety Information Overview

Safety Alert Symbols and Meanings

Explains safety alert symbols and warning word definitions (Danger, Warning, Caution, Notice).

California Proposition 65 Health Warning

Warning about chemicals causing cancer or birth defects from the product.

Venting Safety Hazards and Cautions

Dangers of Improper Venting Installation

Risks of death, injury, fire, or explosion from improper venting.

Flammable Vapor Ignition Risks

Hazards of flammable vapors near the water heater and appliance.

Venting Material and Connection Cautions

Precautions for vent pipe material and secure connections.

Water Supply and Temperature Safety

Dangers of High Water Temperatures

Risks of scalding from water temperatures above 125°F (52°C).

Water Connection Precautions

Warnings about applying heat to water connections and pipe insulation.

Water Quality and Temperature Limits

Specifies acceptable water quality and inlet temperature conditions.

Scald Risk vs. Water Temperature

Chart showing burn times at different water temperatures.

Fuel Type Safety Information

Natural Gas and LP Safety Warnings

Safety concerning gas types, leaks, and LP gas properties.

Gas Piping Installation Standards

Conforming to local utility and national codes for gas piping.

Repair and Operation Safety

Safety precautions for repairs and handling gas supply controls.

Pre-Operation Safety and Procedures

Read Before Operating Warnings

Critical safety instructions and warnings before initial operation.

Gas Leak Detection and Response

Instructions for detecting gas leaks and immediate actions.

Operating Instructions for Startup

Step-by-step guide for turning on the water heater.

Electrical Safety

Shock Hazard Warnings

High voltage electrical hazards and safety measures.

Wiring and Grounding Compliance

Following local and national electrical codes for wiring and grounding.

California Proposition 65 Health Warning

Warning about chemicals causing cancer or birth defects from the product.

General Installation and Maintenance Safety

Installation Compliance and Warnings

Adhering to installation codes and general safety instructions.

General Safety Precautions

Reading the manual, proper use, and maintenance advice.

Product Information Recording

Section for recording model, serial, and installation details.

Product Specifications Diagrams

Direct-Vent Model Dimensions

Diagram showing physical dimensions for direct-vent models.

Outdoor Model Dimensions

Diagram showing physical dimensions for outdoor models.

Product Specifications Data

157k BTU Model Specifications

Technical data and ratings for 157,000 BTU models.

199.9k BTU Model Specifications

Technical data and ratings for 199,900 BTU models.

General Unit Description

Typical Direct-Vent Water Heater Layout

Diagram illustrating components and connections for a direct-vent unit.

Outdoor Unit Description

Typical Outdoor Water Heater Layout

Diagram illustrating components and connections for an outdoor unit.

Using Your Water Heater Safely

Flammable Vapor Hazards

Risks associated with storing or using flammable vapors near the unit.

Setting Water Temperature Safely

Guidelines for adjusting the water temperature setting.

Scalding Hazard from Hot Water

Danger of severe burns or death from water temperatures above 125°F (52°C).

Water Temperature Settings and Facts

Determining Water Temperature at Faucet

Factors affecting water temperature at the faucet, like pipe length.

Important Water Heater Operational Facts

Key facts about water heater operation, controls, and safety features.

Water Heater Inspections

Venting System Inspection

Annual checks for security and airtightness of the venting system.

Condensate Collector Maintenance

Handling and checking the condensate drain line for proper function.

Burner Inspection

Visual Burner Inspection Procedure

Steps for inspecting the main burner flames through the sight glass.

General Care and Cleaning

Electrical Safety During Cleaning

Hazard of electric shock; power must be OFF before cleaning.

Combustible Material Safety

Keeping combustible materials away from the water heater.

Water Filter Cleaning Procedure

Step-by-step instructions for cleaning the water filter.

Water Filter Cleaning Cautions

Filter Removal and Tightening Cautions

Precautions against deforming or damaging the filter during removal/installation.

Preventive Maintenance Schedule

User Preventive Maintenance Tasks

Routine maintenance tasks for the user, including filter cleaning and leak checks.

Pressure Relief Valve Checks

Noticing and responding to periodic relief valve discharge.

Professional Maintenance Recommendations

Recommended services by qualified technicians for optimal performance.

Draining the Water Heater

Safety Warnings for Draining

Dangers of scalding and product damage associated with improper draining.

Reactivating the Water Heater

Post-Draining Cautions

Precautions when putting the heater back into service after draining.

Water Heater Drainage and Freeze Protection

Standard Drain Method Details

Alternative procedure for draining the water heater using service valves.

Freeze Protection Measures

Methods to protect the water heater and piping from freezing conditions.

Running Water Freeze Protection Method

Using a continuous water flow to prevent freezing.

Extended Shutdown Procedures

Safety for Extended Shutdown

Warnings regarding draining and turning off power for extended non-use.

Troubleshooting Common Issues

Diagnosing and fixing common problems before calling for service.

Shock Hazard During Troubleshooting

Safety measure to turn off power before troubleshooting.

Troubleshooting Common Problems

No or Insufficient Hot Water

Diagnosing and fixing issues related to lack of hot water.

Water Too Hot

Diagnosing and fixing issues related to excessively hot water.

Service Error Code Diagnostics

Understanding Error Codes

How the unit displays and indicates error codes on the remote control.

Shock Hazard Before Checking Codes

Safety measure to turn off power before accessing error codes.

Service Error Code Reference

Error Code Lookup Table

Table of error codes, possible causes, and solutions.

Contacting Support for Service

Information needed when calling for service assistance.

Contractor Installation Guide

Installation Standards and Location

Compliance with Installation Codes

Adherence to national, local, and utility codes for installation.

Choosing a Safe Installation Location

Guidelines for selecting a proper and safe location for the water heater.

Fire Hazard Warnings for Location

Risks of fire due to flammable materials or improper location.

Location Requirements and Clearances

Clearances for Combustible Materials

Minimum distances required from combustible and noncombustible materials.

Prohibited Installation Locations

Areas where the water heater must not be installed, such as garages or occupied rooms.

Pre-Installation Checks

Product Inspection Before Installation

Checking the unit for damage and ensuring all parts are present.

Corrosive Atmosphere Warning

Warning against installing near air supplies containing halogenated hydrocarbons.

Direct-Vent Water Heater Installation

Gas Shut-Off Valve Mandate

Requirement for a manual gas shut-off valve as per codes.

Typical Direct-Vent Installation Diagram

Visual guide showing the setup for a direct-vent water heater.

Outdoor Water Heater Installation

Outdoor Installation Only Warning

Critical warning: This unit is designed for outdoor installation only.

Typical Outdoor Installation Diagram

Visual guide showing the setup for an outdoor water heater.

Mounting the Water Heater

Wall Mounting Reinforcement Caution

Need for secure wall mounting to prevent injury or damage.

Direct-Vent Water Heater Venting Requirements

Dangers of Improper Venting

Critical safety risks of incorrect venting, including CO poisoning.

Clearance Requirements for Combustibles

Warnings about required clearances to flammable materials.

Venting System Cautions

Precautions regarding vent recirculation and material.

Maximum Vent Length Limitations

Table detailing maximum vent pipe lengths based on elbows and diameter.

Venting System Details

Vent Pipe Material and Size

List of approved vent pipe materials and size requirements.

Vent Pipe Installation Best Practices

Recommendations for vent pipe slope, support, and noise reduction.

Preexisting Venting System Inspection

Procedure for inspecting existing vent systems for replacement installations.

Massachusetts Venting Regulations

Carbon Monoxide Detector Requirements

Mandated carbon monoxide detectors for specific installations in MA.

Venting Signage Requirements

Signage rules for vent terminals in Massachusetts installations.

Horizontal Vent Terminal Placement

Horizontal Vent Clearances

U.S. Vent Terminal Clearances

Minimum distances for vent terminals based on US installation codes.

Canadian Vent Terminal Clearances

Minimum distances for vent terminals based on Canadian installation codes.

Horizontal Venting Considerations

Condensate Freezing and Building Damage

Risks from flue gas condensate freezing on exterior walls.

Indoor Multi-Unit Venting Rules

Required spacing between vent terminals for multiple indoor units.

Outdoor Unit Venting Placement

Placement advice for outdoor units regarding air inlet and flue outlet.

Horizontal Vent Installation Steps

Solvent Cement and Primer Safety

Hazards of using flammable solvent cements and primers.

Approved Vent Pipe Materials

List of acceptable vent pipe materials and fittings.

Joining Vent Pipes and Fittings

Procedures for properly cementing vent pipe joints.

Horizontal Vent Pipe Installation Details

Fasteners for Vent Pipe Mounting

Types of fasteners recommended for mounting vent pipes to walls.

Horizontal Vent Terminal Spacing

Required distances between air intake and exhaust vent terminals.

Alternative Horizontal Venting Kits

Vertical Vent Installation Procedures

Dangers of Improper Vertical Venting

Critical safety risks of incorrect vertical vent installations.

Approved Parts for Vertical Venting

Using only manufacturer-approved termination and parts for vertical venting.

Air Intake Condensate Trap Installation

Installing a trap for condensate in the air intake pipe.

Vertical Vent Terminal Location Guidelines

U.S. Vertical Vent Clearances

Minimum clearance requirements for US vertical vent terminal locations.

Canadian Vertical Vent Clearances

Minimum clearance requirements for Canadian vertical vent terminal locations.

Standard Vertical Vent Termination Setup

Alternative Vertical Venting Kits

Water Supply Requirements

Water Quality and Temperature Limits

Critical conditions for water supply: clean, potable, and within temperature limits.

Thermal Expansion Tank Requirement

Requirement for a thermal expansion tank in recirculation systems.

Water Supply Connection Guidelines

General advice for connecting the water supply to the unit.

Water Supply Connection Details

Water Pressure Guidelines for Operation

Minimum and required water pressures for proper operation and flow.

Water Supply Installation Steps

Procedures for installing shut-off valves and purging water lines.

Water Supply Installation Procedures

Correct Hot and Cold Water Connections

Ensuring proper connection of water inlet and outlet lines.

Piping Arrangement with Service Valves

Diagram showing piping configuration with service valve kits.

Relief Valve Installation and Safety

Safe Relief Valve Operation Requirements

Conditions for safe relief valve function, including pressure and BTUH ratings.

Relief Valve Type and Discharge Piping

Notes on relief valve types and requirements for discharge piping.

Pipe Insulation and Condensate Management

Hot and Cold Pipe Insulation Benefits

Advantages of insulating water lines for efficiency and freeze protection.

Condensate Drainage Procedures

How to properly drain condensate, ensuring it does not freeze.

Gas Supply Connection Safety

Gas Type Conversion Warning

Dangers of converting the unit between natural gas and LP gas.

Gas Supply Connection Steps

Steps for connecting the gas supply line to the water heater.

Gas Piping Sizing

Gas Piping Sizing Procedure Example

Method for calculating the correct gas pipe size.

Natural Gas Pipe Sizing Table

Table providing pipe sizes for natural gas based on length and capacity.

Propane Gas Pipe Sizing Table

Table providing pipe sizes for propane gas based on length and capacity.

Gas Supply Installation Steps

Gas Shut-Off Valve and Union Installation

Installing manual gas shut-off valves and unions.

Gas Line Material and Sediment Trap

Requirements for gas line material and installation of a sediment trap.

Gas Leak and Pressure Testing

Safe Gas Leak Testing Methods

Warnings against open flames for leak testing; use soapy water.

Gas Supply System Pressure Testing

Procedures for pressure testing the gas supply system.

High Altitude and Electrical Wiring

High-Altitude Installation Adjustments

How altitude affects performance and necessary adjustments.

Electrical Wiring Safety and Compliance

Safety and code requirements for electrical wiring and grounding.

Power Cord and Grounding Requirements

Details on power cords, outlets, and proper grounding.

Electrical Wiring Diagram

Remote Control System

Remote Control Location Considerations

Factors for choosing where to install the remote control.

Remote Control Model Compatibility

Overview of available remote controls and their features.

Remote Control Installation - Wall Mounting

Remote Control Wiring Safety

Safety precautions for wiring the remote control.

Steps for Mounting Remote Control

How to install the remote control on the wall.

Connecting Remote Control to Water Heater

Remote Control Connection Steps

How to connect the remote control cable to the water heater unit.

Insulation Blankets and Installation Precautions

Insulation Blanket Usage Guidelines

When and how to use insulation blankets, and warnings about their use.

General Installation Precautions

Key precautions before starting the installation process.

Installation Checklist

Lighting the Water Heater - Safety First

Critical Safety Before Lighting

Essential warnings and instructions before attempting to light the unit.

Pre-Operation Safety Checklist

Key safety steps and checks before starting operation.

Water Heater Startup and Shutdown

Operating Instructions for Lighting

Step-by-step guide for lighting and starting the water heater.

Procedure for Shutting Off the Heater

Steps to safely turn off the water heater.

Setting Water Temperature - Main Control

Temperature Adjustment Warnings

Dangers of improper temperature settings, including scalding risks.

Scald Risk Chart Review

Importance of reviewing the scald potential chart before adjusting temperature.

Adjusting Temperature Up to 140°F

Steps to set the water temperature up to 140°F (60°C).

Water Temperature Adjustment Details

Stopping Temperature Blinking

How to stop the temperature display from blinking after adjustment.

Limiting Maximum Temperature to 120°F

Procedure to set a maximum water temperature limit of 120°F (49°C).

Minimum Temperature Setting

Adjusting Minimum Temperature to 85°F

Steps to set the minimum water temperature down to 85°F (29°C).

High-Altitude DIP Switch Adjustments

High-Altitude DIP Switch Adjustment Steps

DIP Switch 2 Adjustment for Altitude

Specific steps for adjusting DIP Switch 2 based on installation altitude.

Parts Replacement Information

Parts Ordering Process

How to order replacement parts, including required information.

Direct-Vent Gas Components Diagram

Illustrated diagram of components for direct-vent models.

Outdoor Unit Parts Identification

Outdoor Gas Components Diagram

Illustrated diagram of components for outdoor models.

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