Operating Instructions

Mechanical Installation
Siemens Building Technologies, Inc. 11
Environmental Conditions
Install the SED2 in a heated, indoor-controlled environment that is
free of moisture and conductive contaminants, such as condensation
and dust. The air entering the unit for ventilation or cooling must be
clean and free of corrosive materials. If installed in a confined space,
remove the heat from the area by ventilation or by air conditioning
equipment. The ambient temperature must be between 14°F and
104°F (–10°C and 40°C) and the relative humidity must be 0% to 95%
non-condensing. Do not mount unit in direct sunlight.
Storage Temperature:
Maximum temperature: +158°F (+70°C) *
Minimum temperature: –40°F (–40°C)
Operating Temperature:
Maximum temperature: +104°F (+40°C) *
Minimum temperature: +14°F (–10°C)
* Be aware of the potential increase in temperature inside a control
cabinet (de-rating is required; contact the factory).
Humidity: Maximum 95% rh (non-condensing)
Altitude: The SED2 can be installed at altitudes up to 3280 ft (1000
m) above sea level with no reduction in output current rating (contact
the factory).
NOTE: If installing the SED2 at an altitude higher than 3280 ft
(1000 m) above sea level, de-rating is required.
Location: Do not install the SED2 in an area that is exposed to
repeated shock or vibration, water hazards, or atmospheric pollutants
such as dust and corrosive gases.
EMI and RFI: Do not install the SED2 near powerful sources of
electromagnetic interference (EMI) and radio frequency interference
(RFI) without a suitable filter.