P/N 241513 Rev. 5
A
A
WARNING:
Improper installation, adjustment, alteration, service or maintenance can cause property
damage, personal injury, exposure to hazardous materials* or loss of life. Review the information in this manual
carefully. *This unit contains materials that have been identified as carcinogenic, or possibly carcinogenic,
to humans.
FOR YOUR SAFETY: Do not store or use gasoline or other flammable vapors and liquids or other com-
bustible materials in the vicinity of this or any other appliance. To do so may result in an explosion or
fire.
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 manual should be maintained in legible condition and kept adjacent to the heater or in a safe place for future
reference.
CATALOG NO. 3400.552D
Effective: 09-20-18
Replaces: 08-23-18
INSTALLATION AND
OPERATION MANUAL
Models 1005A - 2005A
Type H, WH, and P
ULTRA HIGH EFFICIENCY
