Installation site requirements
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Installation site requirements for certain components
Refrigeration technology
For AHUs with refrigeration technology, a refrigerant sensor for monitoring the installation site and
suitable ventilation must be present and functional.
The installation site of refrigeration plants is defined according to EN 378.
Steam generator for electro steam humidifier
The following applies to steam generators of electro steam humidifiers:
• Permissible operation temperature: 5 to 40 °C; if necessary, ventilation (if installed in closed
rooms) and/or frost protection must be provided.
• Must not be installed in rooms with underpressure.
Hydraulic set
In the case of weatherproof AHUs with hydraulic sets, hydraulic components must be protected
against frost by the customer (e.g., pipe trace heating, frost protection circuit, frost protection
agents).
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