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AP18733 REV. 3.2.17
22
PREPARE WATER HEATER LOCATION
IMPORTANT
Carefully consider installation when determining water heater location. Please read the entire manual before attempting installation. Failure to
properly take factors such as water heater venting, piping, condensate removal, and wiring into account before installation could result in wasted
time, money, and possible property damage and personal injury.
WARNING
WARNING
WARNING
Incorrect ambient conditions can lead to damage to the heating system and put safe operation at risk. Ensure that the water heater installation
location adheres to the information included in this manual. Failure to do so could result in property damage, serious personal injury, or death.
This water heater is certied for indoor installations only. Do not install the water heater outdoors. Failure to install this water heater indoors could
result in substantial property damage, severe personal injury, or death.
This water heater must be installed as described in this manual: upright, with the vent adapters in the vertical position. DO NOT attempt to install
this water heater in any other orientation. Doing so will result in improper water heater operation and property damage, and could result in serious
personal injury or death.
Failure to keep water heater area clear and free of combustible materials, liquids, and vapors can result in substantial property damage, severe
personal injury, or death.
▪ A. BEFORE LOCATING THE WATER HEATER
IMPORTANT
IMPORTANT
IMPORTANT
Failure of water heater or components due to incorrect operating conditions IS NOT covered by product warranty.
The service life of the water heater’s exposed metallic surfaces, such as the cabinet, as well as internal surfaces, such as the heat exchanger, are
directly inuenced by proximity to damp and salty marine environments. In such areas, higher concentration levels of chlorides from sea spray
coupled with relative humidity can lead to degradation of the heat exchanger and other water heater components. In these environments, water
heaters must not be installed using direct vent systems which draw outdoor air for combustion. Such water heaters must be installed using room
air for combustion. Indoor air will have a much lower relative humidity and, hence, potential corrosion will be minimized.
Locate the water heater where any leakage from the relief valve, related piping, tank, or connections will not result in damage to surrounding
areas or lower oors of the building. The water heater should be located near a oor drain, or installed in proximity to an adequately drained drain
pan. Rheem WILL NOT be held liable for leakage damages.
To conserve water and energy, insulate all water piping, especially the hot and recirculation water lines.
1. Installation Area (Mechanical Room) Operating Conditions
• Ensure ambient temperatures are higher than 33°F/0.6°C and lower than 120°F/49°C
• Prevent the air from becoming contaminated by the products, places, and conditions listed in this manual.
• Avoid continuously high levels of humidity
• Never close existing ventilation openings
2. Check for nearby connections to:
• System water piping
• Venting connections
• Gas supply piping
• Electrical power
• Condensate drain
3. Check area around water heater. Remove any combustible materials, gasoline, and other ammable liquids.
4. Gas control system components must be protected from dripping water during operation and service.
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