Siemens RDF300 Manual page 7

Numerous applications in one model
Features / functions
Multifunctional inputs
Features / functions
Benefits
One model (ASN) offers numerous
applications easily selected via DIP switch.
This reduces the number of ASNs and
simplifies ordering and stocking.
Benefits
2 multifunctional inputs with freely
assignable functions:
o External / return air sensor for
temperature acquisition at an
alternative location
o Heating / cooling changeover sensor:
Automatic changeover for more
convenience
o Operating mode switchover contact:
A useful function for hotel rooms with
keycard, commercial buildings with
time clock, etc. that helps save energy
when the specific area is not in use.
o Dewpoint sensor input:
In connection with a dewpoint sensor
to prevent condensation and to avoid
damage to the building on chilled
ceiling applications.
o Electric heater enable contact:
Enabling / disabling of electric heater
from remote for tariff regulation, energy
saving purposes, etc.
o Fault input contact:
Digital input to signal faults and
maintenance reminder (e.g. filter
cleaning) to help extend the life of
equipment.
32X049EN - April 2009 –
7
HVAC Products