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Viessmann VR2 Series - Product Information; Mechanical Room

Viessmann VR2 Series
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General InformationGeneral Information
7
Product Information
Sectional cast-iron boiler with triple-pass design.
For operation with modulating boiler water temperatures in closed loop, forced
circulation hot water heating sys tems.
The boiler model size selected should be based on an accurate heat loss calculation
of the building. The boiler selected must be compatible with the connected
radiation.
Mechanical Room
During the early s t ages of new home design, we recommend that proper
consideration be given to constructing a separate mechanical room dedicated to gas
or oil fired equipment including domestic hot water storage tanks.
The boiler must be located in a heated indoor space, near a floor drain, and as close
as possible to the vertical chimney or vent.
Whenever possible install boiler near an outside wall so that it is easy to duct fresh
air directly to the boiler area. In addition, do not use exhaust fans in the boiler room
and do not install the boiler in rooms with refrigeration equipment. This equipment
requires uncontaminated outside air for safe operation - do not install where
chemicals are stored or in a room with negative press ure. See section entitled
“Combustion Air Supply for further details regarding the above.
Locate boiler on flooring capable of supporting the weight of the boiler filled with
water. Ensure that the boiler location does not interfere with the proper circulation
of combustion and ventilation air within the mechanical room.
The maximum room temperature of the mechanical room where the boiler is located
must not exceed 95°F / 35°C.
5285 838 v2.15285 838 v2.1

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