Evaporative Cooling Installation Methods 
There are two principles of installation: External and
Internal
External installation: The units are fixed to the outside of a
building and the evaporative cooler acts as an inlet fan blowing cooled air through a
plenum chamber or a ducted system into the building. It is normally matched with an
extract system to give both the required ventilation rate and provide a positive or
negative pressure to the building |
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External
Installation Down Discharge The majority of
coolers are installed in this way. The extract would typically be 80% of the total cooler
capacity. |
| External Installation - Side discharge This installation is often used where roof access if difficult. |

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Where ventilation exists an
internal unit can be suspended from the building structure. Air can then be directed for
spot cooling or diffused as part of a larger scheme. |

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There are location points
for the cooler to sit on the duct. When the cooler sits on a level duct these points
ensure the cooler is level. The cooler must be installed on a level to ensure safe and
efficient operations. The duct enters the cooler 30mm. |
| A typical
roof mounted installation to a plenum chamber is shown. Checks
must be made that the roof structure can support the full operating weight of the system
plus the ductwork and plenum chamber.
The cooler must be mounted sufficiently high so that the drain
connection can be made. |

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The cooler is then fixed to
the ductwork using fixings appropriate for the duct material. It is recommended than a
minimum of 3 fixings are made on each side. Appropriate
weather proofing |
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TEL:
0800 0854737 |