SUPER HIGH EFFICIENCY CONDENSING
TANKLESS WATER HEATER
USE AND CARE MANUAL
With Installation Instructions
for the Installer
Condensing Direct Vent
199,900 Btu/hr, 180,000 Btu/hr,
157,000 Btu/hr and 120,000 Btu/hr Models
WARNING:
If the information in these instructions is not
followed exactly, a fire or explosion may result,
causing death, personal injury, or property dam-
age.
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.
Print 2D
Bar Code
Here
CERTIFIED
®
R
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.
Do not destroy this manual. Please read carefully
and keep in a safe place for future reference.
ULTRA
Low NOx
Emissions
ww w. ah r i d i rec t or y. org
SCAQMD Rule 1146.2
AP21820 Rev 04
Need help?
Do you have a question about the RTGH-95DVELN-3 and is the answer not in the manual?
Questions and answers
water get hot then cold then hot again wont stay hot all trhe time
The Rheem RTGH-95DVELN-3 water heater may fluctuate between hot and cold water due to poor water quality, incorrect water supply conditions, or improper installation. It requires clean, potable water free of corrosive chemicals, sand, or dirt, and the inlet water temperature must be between 32°F (0°C) and 120°F (49°C). Reversing the hot and cold water connections can also cause operational issues. Regular maintenance, including flushing the heat exchanger and using a water treatment device, can help prevent fluctuations.
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