16
LP-520 REV. 5.1.17
• Location that could cause the system and appliance to freeze and leak.
• Incorrectly-sized expansion tank
Do not connect the appliance to any heating systems or components that have been previously used for non-potable applications.
Do not introduce toxic chemicals, such as antifreeze or appliance treatments, into the appliance or any piping meant for potable water
purposes.
Ensure that all piping and components connected to the appliance are suitable for potable water applications.
Do not use this appliance only for space heating applications.
Circulators suitable for DHW applications must be used.
Failure to follow these instructions could result in property damage, personal injury, or death.
6. Clean and flush system when reinstalling an appliance.
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 appliance model and serial number.
C. LEVELING
D. CLEARANCES FOR SERVICE ACCESS
See Figure 4 and Table 7 for recommended service clearances. If these minimum clearances are not provided, it may not be possible
to service the appliance without removing it from the space.
Space must be provided with combustion/ventilation air openings
correctly sized for all other appliances located in the same space as
the appliance. The appliance cover must be securely fastened to
prevent it from drawing air from the appliance room. This is particularly
important if the appliance is in a room with other appliances. Failure to
comply with the above could result in substantial property damage,
severe personal injury, or death.
Installation Clearances
from Non-Combustibles /
Combustibles
Recommended Service and Proper
Operation Clearances
Table 8 – Minimum Installation and Service Clearances
NOTE: A combustible door or removable panel is acceptable front
clearance. A 3” minimum clearance must be provided from the
appliance front cover to the removable panel or combustible door.
MINIMUM CLEARANCES FROM COMBUSTIBLE MATERIALS
• Hot water pipes – at least 1” from combustible materials.
• Exhaust vent pipe – at least 1” from combustible materials.
Always take future maintenance into consideration when locating the appliance. If the appliance is located in an installation location with
limited clearances, it may be necessary to remove the appliance from the space to perform maintenance. Failure to consider
maintenance when determining installation location could result in property damage.
In order for the condensate to properly flow out of the collection system, the appliance must be installed level. Failure to ensure the
appliance is installed level will result in improper appliance operation.
Figure 4 – Minimum Service Clearances
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