Bedienungsanleitung Siemens RDG110 (Seite 18 von 60) (Englisch)

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Siemens RDG100…/RDG110…/RDG140.../RDG160… Basic Documentation CE1P3076.en

Building Technologies Functions 19 Jun 2009

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

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”.

If the button l

ock function is enabled by parameter P14, the buttons will be locked

or unlocked by pressing the right button for 3 seconds.

If “Auto lock” is configured, the thermostat will automatically lock the buttons 10

seconds after the last adjustment.

The thermostat can be forced into Energy Saving mode (e.g. when a window is

opened). The window contact can be connected to digital input D1 (or multi-

functional input X1, X2). Set parameter P42 (P38, P40) to 3.

The left button switches the operating mode from Energy Saving to Comfort for the

period preset in P68, if the following conditions are fulfilled:

• The operating mode switchover contact is closed (connected to input X1, X2,

D1, parameter P38, P40, P42 set to 3)

• Parameter P68 (extend Comfort period) is greater than 0

During the temporary Comfort mode extension, sandglass symbol

appears.

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

Button lock

Operating mode

switchover contact

(window contact)

Extended Comfort

mode (operating mode

switchover contact

closed)

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