Siemens RDF870KN Bedienungsanleitung

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Touch Screen Flush-Mounted PM2.5 & IAQ Controllers With

KNX or RS485 Modbus

RDF870KN.. and RDF870MB..

PM2.5 control, CO2 control, or both and ventilation applications

RDF870KN (KNX) and RDF870MB (Modbus) controllers:

●AC 230 V operating voltage, large, backlit display

●Display and setpoint adjustment for PM2.5 and CO2control

●Display of room temperature, outside temperature, VOC (volatile organic compound) and

r.h. (relative humidity)

●Supports 1-/3-/4-speed On/Off fan or DC fan output

●Two multifunctional inputs for external passive and DC 0…10 V sensors

●Operating modes: Comfort, Economy and Protection

●KNX S-Mode for RDF870KN

●KNX commissioning via ETS or local control parameters

●KNX integration into Desigo via group (ETS) or individual addressing

●KNX integration into third-party system via group addressing (ETS)

●RS485 Modbus RTU slave mode for RDF870MB

●Modbus commissioning via third-party tool, e.g. Modbus scan, Modbus poll, etc.

RDF870MB can be configured as a room unit via DIP switches and it provides the following

additional functions:

●Setpoint adjustment and display for room temperature, VOC, RH and display of outside

temperature

●Four external outputs via bus and controlled by a master controller

Mounting on recessed square 86 mm box or round 60 mm with 60 mm fixing centers and min-

imum 40 mm depth

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Use

Ventilation control in purifier systems:

Typical applications:

●Residential apartments

●Commercial buildings

●Schools/Universities

●Hospitals/Healthcare centers

Local and remote configuration via one of the following:

●Local HMI

●DIP switch selection: room controller or room unit RDF870MB only

●Third-party tool Modbus poll/Modbus scan RDF870MB only

●ETS RDF870KN only

Functions

For room controllers

●Maintain PM2.5 or CO2level or both via controlling a fan of fresh air units or air purifiers

●Display of room temperature via built-in temperature sensor or bus

●Setpoint adjustment for PM2.5 and CO2only

●PM2.5 and CO2values are received from external sensor or via bus.

●CO2control has higher priority than PM2.5 control if both controls are available.

For room unit

●Display room temperature via built-in sensor in °C

●Display outside temperature via bus or outside sensor input in °C

●Display PM2.5 via bus or outside sensor input in μg/m3

●Display CO2via bus or outside sensor input in ppm

●Display VOC via bus or outside sensor input in mg/m3or %

●Display relative humidity via bus or outside sensor input in % r.h.

●Setpoint adjustments for all of the above

Common functionalities

●Selection of operating modes

●Minimum and maximum setpoint limitation

●Fan speed adjustment: Auto, manual (up to 4 speeds)

●Reload factory settings for commissioning, engineering mode and control parameters

Mechanical design

The room controller/room unit consists of the following parts:

●Front panel with electronics, operating elements and built-in room temperature sensor

●Mounting base with power electronics

●Mounting frame is an additional part to complete the installation for RDF870…

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Status symbols

Screen lock

Heating mode

Alarm/service reminder

Valve on

Manual override

Cooling mode

Protection mode

Ventilation mode

Auxiliary heating active

Auto fan mode

Economy mode

Timer

Selection symbols

Room temperature

VOC mode

Outdoor temperature

CO2mode

PM2.5 mode

Relative humidity

Operation

Display

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Operational icons

Increment, decrement or selection

Selection, change or move to previous or next items

Display values, relative humidity or parameter values, etc.

Secondary display, parameters, password / filter hours

Setpoint mode

Fan mode or fan speed mode

Operating mode

More functions or info

Type summary

Product no.

Stock no.

Operating

voltage

Control outputs

Suitable for

On/Off

DC 0…10 V

RDF870KN

S55770-

T407

AC 230 V

4 1)

Square or round

conduit box

RDF870MB

S55770-

T408

AC 230 V

4 1)

Square or round

conduit box

1) On/Off output with potential free input from AC 230 V

Ordering

●When ordering, indicate product number, SSN and name.

e.g. RDF870KN (S55770-T407) room controller

●Order sensors separately.

Equipment combinations

Type of units

Product number

Data sheet*)

Room sensor for detection of

PM2.5

3-color LED service

indication

QSA2700

A6V11160938

Room sensor with LCD

display for detection of

PM2.5

2.4-inch color LCD screen

for PM2.5 values, air quality

index, and service

QSA2700D

A6V11160938

Sensors

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Type of units

Product number

Data sheet*)

Duct air quality sensor CO2/

temperature / rel. humidity /

VOC

QPM1100,

QPM2100,

QPM2102

N1962

Duct air quality sensor CO2/

temperature / rel. humidity /

VOC

QPM2102D

N1962

Duct air quality sensor CO2/

temperature / rel. humidity /

VOC

QPM2160,

QPM2180

N1962

Duct air quality sensor CO2/

temperature / rel. humidity /

VOC

QPM2160D,

QPM2162D

N1962

*) All documents can be downloaded from https://www.downloads.siemens.com/download-

center.

Product documentation

Title

Document ID:

Operating instruction

A6V11439451

CE declaration

A5W90010366 (RDF870KN)

A5W90010367 (RDF870MB)

Environmental product declaration

A6V11625786

Related documents such as environmental declarations, CE declarations, etc., can also be

downloaded at the following Internet address:

http://siemens.com/bt/download

Notes

Security

CAUTION

National safety regulations

Failure to comply with national safety regulations may result in personal injury and property

damage.

●Observe national provisions and comply with the appropriate safety regulations.

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Engineering

See the product documentation for information on engineering, selection and sizing connect-

ing cables for supply voltage and field devices.

Mounting and installation

Mount the room controller on a conduit box. Do not mount on a wall in niches or between

bookshelves, behind curtains, above or near heat sources, wind outlets or inlets, and do not

expose to direct solar radiation. Mount about 1.5 m above the floor.

●Do not apply excessive force to screws! Deformation of the mounting frame may result in

improper connections and faulty operation.

●Mount the room controller in a clean, dry indoor place without direct airflow from a heat-

ing/cooling device, not exposed to drips or splash water.

●Before removing the front cover, disconnect the power supply.

WARNING

No internal line protection for supply lines to external consumers

Risk of fire and injury due to short-circuits

●Adapt the line diameters as per local regulations to the rated value of the installed fuse.

See Operating Instruction for the installation instructions enclosed with room controller.

●Comply with local regulations to wire, protect and earth the room controller.

●The device has no internal fuse for supply lines to fan and actuators. To avoid risk of fire

and injury due to short-circuits, the AC 230 V mains supply line must have a circuit

breaker with a rated current of no more than 10 A.

●The wiring cross section used for power supply (L, N) and 230 V outputs (Qxx - N) must

be adapted to the preceding overload protection elements (max. 10 A) under all circum-

stances. Always comply with local regulations.

●Properly size the cables to the room controller and valve actuators for AC 230 V mains

voltage.

●Cables of SELV inputs X1-M / X2-M: Use cables with min. 230 V insulation, as the con-

duit box carries AC 230 V mains voltage.

●Inputs X1-M or X2-M of different units (e.g. temperature sensor) may be connected in

parallel with an external switch. Consider overall maximum contact sensing current for

switch rating.

●KNX communication cables (input CE+ / CE-): Use cables with Min. 230 V insulation, as

the conduit box carries AC 230 V mains voltage. (Only for RDF870KN)

●When a KNX bus power supply is connected on the line with communicating room con-

troller and Synco controllers, the internal KNX power supply of the Synco controllers

must be switched off. (Only for RDF870KN)

Mounting

Wiring

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●Isolate the cables of Modbus communication input A+, B- and REF for 230 V. (Only for

RDF870MB)

●No cables are provided with a metal shield.

●Disconnect from supply before opening the cover.

Commissioning

After powering up, all LCD segments light up for about three seconds before the room con-

troller enter its normal states.

Address and application can be downloaded via ETS by pressing and holding for more

than five seconds to enter programming mode. (Only for RDF870KN)

The room controller and room unit can be set via DIP switches. (Only for RDF870MB)

DIP switch configuration

DIP switch positions

Application

OFF

Room unit

OFF

Room controller

DIP switch setting applies to RDF870MB only.

Current factory setting for PM2.5 control with 3 speed on/off fan application is as follows:

●APP= 1: PM2.5 control only

●DISP: Room temp= 1; PM2.5= 1

●SEN1= 3: PM2.5 (AI) μg/m3(0…10 V)

●SEN2= 0: no function

●FAN= 3: 3 speed fan

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Software version (RDF870KN)

Two different software versions of RDF870KN are available:

●RDF870KN with software version

(U101):

Related ETS5 file

(RDF870KN_v1d0_ETS5.knxprod)

●RDF870KN with software version

(U103):

Related ETS5 file

(RDF870KN_v1d1_ETS5.knxprod)

The software version can be checked as follows:

●The software version relates to production date (DDMMYYYY) on the individual package

label or printed on the rear of the product.

E.g. "DDMMYYYY = 02062019" equals to "02 June 2019"

–If YYYY = 2018, 2019 or 2020, RDF870KN software version is "U101".

–IF YYYY = 2021 onwards, RDF870KN software version is "U103".

●Checked under parameter mode:

–Enter password 9999 after accessing parameter mode. For parameter mode access,

see Parameter mode user access [19].

–When first parameter appears, press and hold until "SW" is displayed. Then relat-

ed software version is shown as "U101" or "U103".

For further support, please raise a support request via site:

https://support.industry.siemens.com/cs.

Disposal

The device is considered an electronic device for disposal in accordance

with the European Guidelines and may not be disposed of as domestic

garbage.

●Dispose of the device through channels provided for this purpose.

●Comply with all local and currently applicable laws and regulations.

Warranty

Technical data on specific applications are valid only together with Siemens products listed

under "Equipment combinations". Siemens rejects any and all warranties in the event that

third-party products are used.

Note

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Technical data

Power supply

Operating voltage

AC 230 V

Frequency

50/60 Hz.

Power consumption

Max. 7.0 VA / 2.5 W

CAUTION

On internal fuse.

External preliminary line protection with max. C 10 A circuit breaker required in all cases.

Multifunctional input X1-M/X2-M

Temperature sensor input:

Type

Temperature range

Accuracy

Calibration range

NTC 10k

0…50 °C (32…122 °F)

±0.5 K at 25 °C (77 °F)

-5 K…5 K, resolution 0.5 K

Digital Input:

Logic states

Insulation against mains voltage (SELV)

Cable length

Selectable NO/NC

≥3.75 kV, reinforced insulation

Up to 80 m (wire diameter of 1.5 mm2))

Analog input

Signal type

Sensor range and limit

Cable length

0…10 V, NTC 10k

Set by parameters

Up to 80 m (wire diameter of 1.5 mm2))

Function of inputs

PM2.5 sensor, CO2sensor, VOC sensor,

humidity sensor, alarm input

Selectable

X1: SEN1

X2: SEN2

Output

3/4 speed fan

Type

Voltage

Maximum current

Q1…Q4

On/Off

AC 230 V

5(2) A

ECM fan

Type

Voltage

Maximum current

Y50

Modulating

DC 0…10 V

5.0 mA

CAUTION

If fans must be connected in parallel, connect one fan directly, for additional fans, one relay

for each speed.

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KNX interface

KNX type

Bus current

KNX TP1-64, galvanic isolation.

5 mA

Modbus interface

Modbus type

Transmit mode

Connection

Baud rate

Modbus address

Cable length

Identity

Transmission format (start bit –data –parity

–stop)

RS485

RTU

Support up to 32

9600, 19200 (default), 38400

1-247, 1 (default)

Max.1200 meters

Slave

0 = 1-8-E-1 (default) / 1 = 1-8-O-1 / 2 = 1-8-

N-1 / 3 = 1-8-N-2

Wiring connections

Diameter

Wire

1.5 mm2

Solid or stranded

Ambient conditions and protection classification

Classification as per EN 60730

Function of automatic control devices

Degree of contamination

Overvoltage category

Type 1

III

Design type

Device suited for use with equipment of

safety class II.

Degree of protection of housing to EN 60529

Room automation station

With terminal cover

IP30.

Climatic ambient conditions

Transport (packaged for transport) as per

EN 60721-3-2

Operation as per EN 60721-3-3.

Class 2K3

Class 3K5 1)

Mechanical ambient conditions

Transport as per EN 60721-3-2

Operation as per EN 60721-3-3

Class 2M2.

Class 3M2.

1) No condensation is allowed.

Standards, directives and approvals

Electromagnetic compatibility

For residential, commercial, and industrial

environments

EU conformity (CE)

A5W90010366 (RDF870KN) *)

A5W90010367 (RDF870MB) *)

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