Reference Manual

Climate Protection
51 Climate Protection
The "Climate Protection" function:
•
Supervises and maintains the internal temperature and humidity
within allowed ranges for the units in the RBS
• Controls the connection and disconnection of power, at start (or
restart) of the RBS and at extreme internal temperature.
The external temperature range for each RBS type is product-specific.
To get a complete picture of the climate protection system’s capacity,
this document should be read in conjunction with the relevant product
specification.
The Climate Protection of an RBS can be maintained with one or a
combination of the functions described in this chapter.
RBS configurations with one or more cabinets are handled.
51.1 Concepts
External Outside the RBS cabinet
Internal Inside the RBS cabinet
Temperature In this chapter, shaded air temperature
Normal range Is internal temperature within +5

Cto
+45

C
Normal operation Is internal temperature range which is
5

Cto10

C within safe range in both
high and low limits
Specified external Normal Condition range
Is stated in relevant product chapter
Normal Condition, safe function and non-destruction
Are defined within the context of
Enviromental Capability
User In this chapter, any unit that needs power
from the cabinet power system in order to
function.
51.2 Functions
51.2.1 Climate Control by Air Conditioning
Operational Conditions
This function requires AC power and an internal temperature above
0

C.
EN/LZT 720 0008 P2A
2001-11-28
399 (485)
© Ericsson Radio Systems AB
— All Rights Reserved —
Preliminary