Reference Manual

Climate Protection
Description
This function maintains the internal temperature by an internally
circulated air system (separated from the external environment). The
internally circulated air will pass through an active cooling unit which
has the capacity to lower the internal air temperature below the external
environmental temperature.
45.2.2 Climate Control by Heat Exchanging
Operational Conditions
This function is available when the system voltage is present and the
internal temperature is above 0

C.
Description
This function maintains the internal temperature by an internally
circulated air system (separated from the external environment). The
internally circulated air will pass through a heat exchanger which cools
down the internal air to a temperature just above the external
environmental temperature.
45.2.3 Climate Control by Forced Air
Operational Conditions
This function is available when the system voltage is present and the
internal temperature is above 0

C.
Description
This function maintains the internal temperature by filtering external air
and forcing it through or passing the units. By continuously replacing
the warmed air with air of a lower temperature and using controlled air
speed, the internal temperature will be kept within working range.
45.2.4 Heating
Operational Conditions
This function is available with low internal temperature and AC power.
The function is only used in products specified for external temperature
ranges whose lower limit is below +5

C.
Description
The heating function uses a combination consisting of a heating element
and fans to force the heated air through the RBS air channel system.
The heating function controls the internal temperature to above normal
operation low limit.
338 (421)
EN/LZT 720 0008 R1A
2001-06-26
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