Siemens RDG100T Basic Documentation

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Siemens RDG100, RDG100T, RDG110, RDG140, RDG160 Basic Documentation CE1P3181en
Building Technologies Functions 14 Dec 2011
The temperature should be limited for 2 reasons: comfort and protection of the
floor.
The floor temperature sensor, connected to multifunctional input X1 or X2, acquires
the floor temperature. If the temperature exceeds the parameterized limit (parame-
ter P51), the heating valve is fully closed until the floor temperature drops to a level
2 K below the parameterized limit.
This function is factory-set to OFF (disabled).
Input X1 or X2 must be commissioned accordingly (P38 or P40 = 1).
See section 4.10 “Multifunctional input”.
Living roo
ms:
Up to 26 °C for long-term presence, up to 28 °C for short-time presence.
Bath rooms:
Up to 28 °C for long-term presence, up to 30 °C for short-time presence.
The table below shows the relation between parameter, temperature source and
temperature display:
Parameter P51
External temp.
sensor available
Source for display of room
temperature
Output control according
to
Floor temp. limit
function
OFF No Built-in sensor Built-in sensor Not active
OFF Yes External temp. sensor External temp. sensor Not active
10...50˚C No Built-in sensor Built-in sensor Not active
10…50˚C Yes Built-in sensor
Built-in sensor + limit by
external sensor
Active
The floor temperature limitation function influences the outputs listed in the table
below:
*) If P13 = ON --> el. heater in cooling
mode
Dewpoint monitoring is essential to prevent condensation on the chilled ceiling
(cooling with fan disabled, parameter P52). It helps avoid associated damage to
the building.
A dewpoint sensor with a potential-free contact is connected to multifunctional input
X1, X2 or D1. If there is condensation, the cooling valve is fully closed until no
more condensation is detected, and the cooling output is disabled temporarily.
The condensation symbol
is displayed during temporary override.
The input must be commissioned accordingly (P38, P40, P42).
See section 4.10 “Multifunctional input”.
Floor temper
ature
limitation function
Recommended values
for P51:
Floor temp. limit function has influence on
Application Output Y1 Output Y2 Output Y3
Heat. mode
(P01=0/2/3)
Cool. mode
(P01=1/2/3)
Heat. & cool.
mode (P01=4) Remark
2-pipe H/C valve Y1 N/A
2-pipe & el heater H/C valve El. heater Y2 Y2 *) Only el. heater
2-pipe & radiator H/C valve Radiator Y2 Y2 Only radiator
4-pipe Heating valve Cooling valve Y1 N/A Y1
4-pipe & el heater Heating valve Cooling valve El. heater Y3 N/A Y3 Only el. heater
2-stage 1st H/C 2nd H/C Y1, Y2 N/A
Dewpoint monitoring

Siemens RDG100T Specifications

General

Brand	Siemens
Model	RDG100T
Category	Thermostat
Language	English