238-48384-00Q REV 03/21
ULTRA HIGH EFFICIENCY COMMERCIAL GAS
WATER HEATER INSTALLATION & OPERATION MANUAL
WITH TROUBLESHOOTING GUIDE
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.
For customer comfort, safety and
convenience, it is recommended this water
heater be installed and serviced by a
plumbing professional.
If the information in these instructions is
not followed exactly, a fire or explosion
may result causing property damage,
personal injury or death.
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