Siemens RDG400 manual Setpoints and sequence, Single duct With min/max Limitation

Page 11

4.4Setpoints and sequence

In single-duct changeover applications the Comfort setpoints for heating and cooling sequence are the same (w).

In applications with electrical heater, radiator or heating / cooling coil the Comfort setpoint is at the heating sequence.

The start of the cooling sequence is linked to “Dead-zone” above the Comfort setpoint. The dead zone can be set via parameter P33.

The setpoints for Energy Saving and Protection mode are below the Comfort setpoints (heating) and above the Comfort setpoints (cooling).

They can be set via parameters P11, P12 (Energy Saving) and P65, P66 (Protection).

The control signal for air flow can be limited via parameters P63 and P64. See section 4.8.1.

To simplify the diagram below, only minimum limitation is shown.

 

 

 

 

 

 

 

 

 

wHeatProt

 

w

 

wCoolProt

 

 

wHeatEco

 

 

wCoolEco

T[°C]

3181D127

 

 

 

 

 

Comfort mode

 

 

 

Energy Saving / Protection mode

 

Application

Heating mode

Cooling mode

 

 

Heating mode

 

Cooling mode

 

 

Y

 

Y

 

 

Y

 

 

Y

 

 

Single duct

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHeatEco T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W

T

 

W

T

 

 

WHeatProt

 

 

 

WCoolEco

WCoolProt T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Single duct

Y

 

Y

 

 

Y

 

 

Y

 

 

with min/max

 

 

 

 

 

 

 

limitation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W

T

 

W

T

 

 

WHeatProt

WHeatEco T

 

 

WCoolEco

WCoolProt T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Comfort mode

 

Energy Saving

 

Protection mode

 

Application

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Single duct

 

Y

 

 

YE

 

 

YE

 

 

 

YE

 

with

 

 

 

 

 

 

 

Y

 

 

Y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

electrical

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

heater

 

 

 

 

W

T

 

WHeatEco

WCoolEco

T

 

WHeatProt WCoolProtT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y

 

 

YR

 

 

YR

 

 

 

YR

 

Single duct

 

 

 

 

 

 

 

Y

 

 

Y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

with radiator

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W

T

 

WHeatEco

WCoolEco

T

 

WHeatProt WCoolProtT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11 / 42

 

 

 

Siemens

RDG100, RDG100T, RDG110, RDG140, RDG160 Basic Documentation

CE1P3182en

Building Technologies

Functions

28 May 2009

Image 11
Contents Edition CE1P3182en 28 May Building TechnologiesTable of contents Before you start About this documentRevision history Reference documentsDocument use / request to the reader Brief description Types and featuresFeatures SummaryEquipment combinations SSA81 SSP81… SSB81 SSD81 SQS85… AccessoriesUse OrderingDescribed in section Temperature controlFunctions General noteOperating modes Comfort mode Energy Saving Protection modeSetpoints Single duct With Electrical Heater Comfort mode Energy Saving Protection mode ApplicationSetpoints and sequence Single duct With min/max LimitationWith heating Cooling coil Comfort mode Energy Saving mode ApplicationHeating mode Cooling mode Single duct Protection mode Heating mode Cooling modeApplications overview Additional features Limitation function Temperature sensorExternal / return air Floor heatingComf Extension Prot Absence Not available Eco Sec after the last adjustmentButton lock Locked or unlocked by pressing the right button for 3 secApplications and sequences Sequences overview setting via parameter P01Parameter P01 = Sequence Mode Control sequencesPosition Function of the control outputs is set via DIP switches 4Single-duct heating / cooling coil DIP Y10 = … 10 10 … 0 V invertedModulating control 3-position, PWM or DC 0 … 10 Setting the sequence and the control outputsSingle duct Heating or coolingModulating electrical heater Single duct with electrical heaterSequences Modulating radiator / floor heating Single duct with radiator or floor heatingModulating heating / cooling coil Single duct with heating / cooling coilControl sequence Synchronization Control outputsControl output for air flow ON/OFF control signal Parameter P44 Y1 and Y2 SignalPosition control Position actuatorAI/DI Multifunctional input, Digital inputRange Handling of faultsDIP switches Temperature outChange the parameters as follows Parameter settingControl parameters Service level Parameters Service levelExpert level Parameters Expert level, diagnostics & testDiagnostics & test Mounting Mounting and installationWiring HandlingUser action OperationLayout Button operationLCD display DisposalConnection terminals EngineeringConnection diagrams General DimensionsMechanical design Power supply Outputs Inputs Operational data Technical dataPage Automatic heating/cooling changeover Index