Sauter Components RDT 300 F001, User Manual

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2 - 22 Overview of models
7000928003 R4
Sauter Components
Description of functions: RDT 300
Control model 3
Installation:
– dual pipe installation, heating or cooling
Features:
– PI controller for heating and cascade controller for cooling, each with 2 setpoints per controller
– free PI controller, e.g. for dehumidification
– switchover between heating and cooling by means of change-over signal
– change-over output to switch the room controllers over
– outdoor temperature averaged and damped, can be switched off
– flow temperature for heating controlled by outdoor temperature, based on heating curve
– flow temperature for cooling with ground temperature input, corresponds to a cascade control
– operating mode changeover: internal or via external system remote control, off mode with frost protection
– flooring function as per DIN 4725 part 4
– valve anti-jamming function
– pump blocking protection
– active dewpoint prevention using dewpoint controller (limiter), internal dewpoint calculation, optional
active dewpoint input
– change-over signal derived:
from outdoor temperature or
from averaged outdoor temperature or
time-limited, as a function of reference and outdoor temperature
– shift output can be parameterised, e.g. to room controllers
– week clock with automatic summer/winter time switchover