Table of Contents
Advertisement
OPERATING, INSTALLATION AND SERVICE MANUAL
COMMERCIAL GAS WATER HEATER
WITH FLUE DAMPER AND ELECTRIC
IGNITION SYSTEM WITHOUT FAN MOTOR
WARNING: If the information in these instructions is not followed exactly, a fire
or explosion may result causing property damage, personal injury or death.
Do not store or use gasoline or other flammable vapors and liquids in the
vicinity of this or any other appliance.
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.
Installation and service must be performed by a qualified installer,
service agency or the gas supplier.
THIS APPLIANCE SHALL NOT BE INSTALLED IN ANY LOCATION WHERE
FLAMMABLE LIQUIDS OR VAPORS ARE LIKELY TO BE PRESENT.
FLAMMABLE VAPORS MAY BE DRAWN TO THIS WATER HEATER FROM OTHER
AREAS OF THE STRUCTURE BY AIR CURRENTS.
CAUTION
THIS WATER HEATER SHOULD NOT BE USED TO HEAT A SPA OR HOT TUB
THIS WATER HEATER SHALL NOT BE INSTALLED IN BATHROOMS, BEDROOMS,
This water heater is equipped for one type gas only. Check the data plate near the control access panel for the correct gas. DO NOT
USE THIS WATER HEATER WITH ANY GAS OTHER THAN THE ONE LISTED ON THE DATA PLATE. Failure to use the correct gas
can cause problems which can result in DEATH, SERIOUS BODILY INJURY OR PROPERTY DAMAGE. If you have any questions or
doubts consult your gas supplier or gas company. Water heaters for bottled, propane or liquefied petroleum gas (LPG) are different from
natural gas models. A natural gas heater will not function safely on bottled, propane or liquefied petroleum gas (LPG) and no attempt
should be made to convert a heater from natural gas to any other gas. An odorant is added to the gas used by this water heater.
IF YOU HAVE QUESTIONS THAT ARE NOT ANSWERED IN THE MANUAL YOU MAY CALL THE TOLL
FREE NUMBER 800 900-9063 OR CONTACT US BY EMAIL AT: engineering@waterheaters.com.
DO NOT CONTACT US BY TELEPHONE OR EMAIL FOR WARRANTY REGISTRATION. YOUR WATER
HEATER SERIAL NUMBER IS ALREADY ON FILE. THE WARRANTY IS ACTIVATED AT THE TIME OF
PURCHASE. KEEP YOUR RECEIPT TO SHOW TO SERVICE PERSON IF SERVICE IS REQUIRED.
REQUIRES 120V A.C. POWER SUPPLY
OR ANY OCCUPIED ROOM NORMALLY KEPT CLOSED.
WARNING
150158 Rev. 03 January-2011
Advertisement
Table of Contents
Related Manuals for American Standard D100-250
Summarization of Contents
General Safety and Warnings
Flammable Vapors and Liquids
Warning against storing or using flammable materials near the appliance.
Procedure for Gas Smell
Steps to take if you detect the smell of gas.
Installation and Service Qualifications
Requirement for qualified personnel to perform installation and service.
Prohibited Installation Locations
Restrictions on installing the heater in certain locations.
Gas Type Compliance
Importance of using the correct gas type as listed on the data plate.
Installation Safety and Dangers
Flammable Vapor Hazards
Explains the explosion risk from flammable vapors near the heater.
Handling Flammable Products
Guidelines for storing flammable products safely.
Pilot Flame and Vapor Ignition
How the pilot flame can ignite vapors.
Scalding Danger from Hot Water
Warning about severe burns from water over 125°F.
Warranty Limitations
Non-Compliance with Codes
Warranty void if installation does not meet local codes.
Undersized Heater or Overfiring
Failures due to undersizing or excessive burner firing.
Poor Water Quality and Sediment
Impact of bad water conditions and lime buildup on warranty.
Improper Venting or Air Pressure
Warranty exclusion for issues caused by improper venting.
Proximity to Chemicals/Solvents
Damage from chemicals or solvents stored nearby voids warranty.
Consumer Responsibilities and Installation
Manual Purpose and Installation Guidance
Manual acquaints users with installation, operation, and safety.
Closed Water Systems and Expansion Tanks
Requirements for closed water systems including expansion tanks.
Gas Leak Safety Procedures
Safety steps to follow in case of a gas leak.
Installation Information Recording
Fields to complete for model, serial, and installation address.
Installation Requirements
Pre-Installation Checks and Guidance
Importance of reading instructions and seeking qualified help.
Gas Type Verification
Ensuring the gas type matches the rating plate.
Location and Clearance Requirements
Selecting a suitable location with proper clearances for servicing.
Prohibited Installation Locations
National Fuel Gas Code prohibitions on installation locations.
Installation Clearances and Air
Combustible Construction Clearances
Table specifying clearances from combustible materials.
Garage Installation Safety
Safety requirements for installing in a garage.
Alcove and Combustible Floor Certifications
Diagrams showing certified installation types.
Combustion and Ventilation Air Requirements
Provisions for adequate air supply for combustion and ventilation.
Venting and Environmental Precautions
Draft Diverter and Air Pressure
Caution regarding draft diverter placement and air pressure zones.
Corrosive Atmosphere and Warranty
Warning about corrosive atmospheres affecting warranty.
Water Damage and Drain Pan Requirements
Requirements for drain pans to prevent water damage.
Venting Installation and Inspection
Procedures for installing and checking the venting system.
Installation Procedures
Flue Damper Installation
Step-by-step instructions for installing the flue damper.
Water Connection Requirements
Details on connecting cold and hot water supply lines.
Gas Piping Installation
Guidelines for installing gas piping, including unions and drip legs.
High Temperature Water Safety
Caution regarding high water temperatures and scald injury prevention.
Advanced Installation and Safety
L.P. Gas Safety and Leak Detection
Safety warnings specific to Liquefied Petroleum gas.
Anode Rods and Tank Protection
Function of anode rods and their impact on warranty.
Multiple Heater Installation Guidelines
Best practices for manifolding multiple water heaters.
Safety Systems and Special Conditions
Multiple Heater Manifolding
Diagrams illustrating manifolding configurations.
Hydrogen Gas Formation and Precautions
Information on hydrogen gas production and safety measures.
Temperature and Pressure Relief Valve
Installation, function, and warnings for the T&P relief valve.
Electrical and Installation Checks
Electrical Requirements and Wiring
Electrical specifications and wiring cautions.
Pre-Operation Installation Checklist
Comprehensive checklist before starting the burner.
Wiring Diagrams
Wiring Diagram D80-512AS Model
Electrical schematic for the D80-512AS model.
Wiring Diagram High BTU Input Models
Electrical schematic for models over 400,000 BTU/Hr.
Operation and Gas Safety Procedures
Damper Operation Sequence
Description of the flue damper's operational sequence.
General Operating Instructions
Step-by-step guide for operating the water heater.
Natural Gas Leak Safety
Safety procedures for natural gas leaks.
L.P. Gas Leak Safety and Handling
Safety procedures for L.P. gas leaks and handling.
Maintenance and System Configurations
Flammable Material Storage Warning
Danger associated with storing flammable materials near the unit.
Tank Cleaning and Maintenance
Procedure for cleaning the water heater tank.
Vacation Mode and System Combinations
Settings for vacation and warnings for combination systems.
Venting Inspection and Condensation
Guidelines for venting inspection and explanation of condensation.
Operating Procedures
Safety Before Lighting
Crucial safety warnings before attempting to light the pilot.
Step-by-Step Operating Instructions
Detailed steps for starting and operating the water heater.
Turning Off Gas Supply
Procedure for safely turning off the gas supply.
Operating and Gas Valve Control
Safety Before Operation
General safety precautions before operating the appliance.
Operating Instructions
Instructions for initiating and running the water heater.
Gas Valve Control Identification
Illustrations of different gas valve control types.
Procedure to Turn Off Gas
Steps for turning off the gas valve to the appliance.
Temperature Control, Safety, and Gas Pressure
High Temperature Limit and Control
Details on the high-temperature limit switch and temperature adjustment.
Emergency Shutdown and Tampering
Procedures for emergency shutdown and warnings against tampering.
Burner and Pilot Maintenance
Recommended maintenance for burners and pilot flames.
Gas Pressure Specifications
Required supply and manifold gas pressures for different gas types.
Draining and Troubleshooting Introduction
Draining the Water Heater
Procedure for draining the water heater, especially during freezing conditions.
Service Qualifications
Emphasizes that service must be performed by qualified personnel.
Common Complaints Overview
Introduction to common issues and the need for trained personnel.
Common Complaints and Remedies
Burner Ignition and Flame Issues
Troubleshooting for non-ignition, weak, or abnormal burner flames.
Water Heating Performance Issues
Addressing insufficient hot water and slow recovery.
System Component Issues
Diagnosing issues with relief valves or electronic controllers.
Combustion and Odor Problems
Troubleshooting condensation, odors, and carbon formation.
Combination Heating System Diagram
Piping Arrangement for Top Connections
Illustrates piping for a combination heating and potable water system.
Need help?
Do you have a question about the D100-250 and is the answer not in the manual?
Questions and answers