Introduction; Before You Start; Description Of Rdg Range - Siemens RDG Application Manual

4

Introduction

The new thermostat range RDG and RDF is very versatile and consists of numerous
products. The RDG and RDF offer many new features and cover a broad field of
applications.
This document shall:
– give you an overview of the new ranges RDG and RDF
– assist you by the selection of the suitable product, and
– provide you with helpful information for installation and commissioning
The section "application overview" for each main application – i.e. fan coil unit,
universal, heat pumps and VAV – shows what applications are covered by which
thermostat line.
The section "product overview" shows the available thermostat variants and their
supported applications.

Before you start

Before you start selecting a thermostat, we recommend to make the following
preselection:
– Type of main application: fan coil unit, universal, heat pump or VAV
– Application: e.g. 2-pipe with electrical heater
– Type of control output 1: ON/OFF, PWM, 3-position, or DC 0...10 V
– Type of control output 2: ON/OFF, PWM, 3-position, or DC 0...10 V
– Type of inputs: e.g. external room temperature sensor, changeover sensor,
key card switch etc.
– Type of thermostat: standalone, standalone with 7-day timer, or communicating
thermostat
– Thermostat design: wall- or semi flush-mounted
– Other important requirements

Description of RDG range

The RDG represents a compact wall-mounted version and is of elegant and modern design.
This range consists of 2 lines of versatile products – RDG100 line and RDG400 line:
– RDG100 line for fan coil units plus universal (e.g. chilled ceilings or radiators)
and heat pump applications
– RDG400 line for VAV applications
The thermostats are available as standalone versions, standalone with 7-day time program,
and KNX versions tailored for use with Synco 700 via LTE-mode, for integration in Synco
living or BACS (building automation and control system) via S-mode.