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420012001500 - 03182024 - Rev. 04
COLD WEATHER HANDLING - If the boiler has been stored in a
very cold location (BELOW 0oF) before installation, handle with care
until the components come to room temperature. Failure to do so could
result in damage to the boiler.
Carefully consider installation when determining boiler location.
Please read the entire manual before attempting installation. Failure
to properly take factors such as boiler venting, piping, condensate
removal, and wiring into account before installation could result in
wasted time, money, and possible property damage and personal
injury.
This boiler is certified for indoor use only. DO NOT INSTALL
OUTDOORS. Outdoor installations ARE NOT covered by warranty.
Failure to install the boiler indoors could result in property damage,
severe personal injury, or death.
Failure to keep the boiler area clear and free of combustible materials,
liquids, and vapors can result in substantial property damage, severe
personal injury, or death.
Do not introduce toxic chemicals, such as antifreeze or appliance
treatments, into any piping meant for potable water purposes.
Do not connect DHW connections to any heating systems or components
that have been previously used for nonpotable applications.
Ensure that all piping and components connected to the appliance are
suitable for potable water applications.
A. Locating the Boiler
Incorrect ambient conditions can lead to damage to the heating system
and put safe operation at risk. Ensure that the installation location
adheres to the information included in this manual. Failure to do so
could result in property damage, serious personal injury, or death.
Failure of boiler or components due to incorrect operating conditions
IS NOT covered by product warranty.
This boiler must be installed upright in the vertical position as described
in this manual. DO NOT attempt to install this boiler in any other
orientation. Doing so will result in improper boiler operation and
property damage, and could result in serious personal injury or death.
1. Installation Area (Mechanical Room) Operating Conditions
• Ensure ambient temperatures are higher than 32°F / 0°C and
lower than 104°F / 40°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
• Ensure a minimum 1” clearance around hot water and exhaust
vent pipes
• NOTE: To prevent condensing in the fan, it is recommended to
avoid prolonged exposure to temperatures below 45°F
This boiler has a condensate disposal system that may freeze if
exposed to sustained temperatures below 32°F. Precautions should
be taken to protect the condensate trap and drain lines from sustained
freezing conditions.
Circulators suitable for DHW applications must be used.
Failure to take precautions could result in property damage, severe
personal injury, or death.
CAUTION CAUTION
CAUTION
WARNING
WARNING
WARNING
WARNING
WARNING
2. Check for nearby connections to:
• System water piping
• Venting connections
• Gas supply piping
• Electrical power
• Condensate drain
3. Check area around boiler. Remove any combustible materials,
gasoline, and other flammable liquids.
The service life of the boiler’s exposed metallic surfaces, such as the
casing, as well as internal surfaces, such as the heat exchanger, are
directly influenced 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 boiler
components. In these environments, boilers must not be installed using
direct vent systems which draw outdoor air for combustion. Such
boilers must be installed using room air for combustion. Indoor air will
have a much lower relative humidity, and hence potential corrosion
will be minimized.
Always take future maintenance into consideration when locating the
boiler. If the boiler is located in an installation location with limited
clearances, it may be necessary to remove the boiler from the space
to perform maintenance. Failure to consider maintenance when
determining installation location could result in property damage.
Failure of the boiler or components due to incorrect operating
conditions IS NOT covered by product warranty.
4. Gas control system components must be protected from dripping
water during operation and service.
5. If the boiler is to replace an existing boiler, check for and correct
any existing system problems, such as:
• System leaks
• Location that could cause the system and boiler to freeze and
leak
• Incorrectly sized expansion tank
6. Clean and flush system when reinstalling a boiler.
NOTE: When installing in a zero clearance location, it may not be
possible to read or view some product labeling. It is recommended to
make note of the boiler model and serial number.
Failure to follow these instructions could result in serious personal
injury or death.
Part 3 - Prepare the Boiler for Installation
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