Siemens RCC30 Manuel utilisateur

CE1N3023en

2017-11-14

Building Technologies

023

Room Temperature Controller RCC30

for four-pipe fan coil units

Outputs for on / off valve actuators

Outputs for three-speed fan

Control depending on room or return air temperature

Operating modes: normal, energy saving and frost protection or OFF

Operating mode changeover input for remote control

Selectable control parameters

Operating voltage AC 230 V

Use

Typical use:

∂Control of the room temperature in individual rooms that are heated or cooled with

four-pipe fan coil units.

∂For opening or closing a valve

∂for switching a three-speed fan.

Functions

The controller acquires the room temperature with its integrated sensor or external

room temperature sensor (QAA32) or external return air temperature sensor (QAH11.1)

- if used - and maintains the setpoint by delivering control commands to the 2-point-

valve.

The switching differential is adjustable. It can be 1 or 4 K in heating mode and

0.5 or 2 K in cooling mode.

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Siemens Room temperature controller CE1N3023en

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The fan is switched to the selected speed via control output Q1, Q2 or Q3.

When the function “Temperature-dependent fan control“ is activated (can be selected

with DIP switch no.1), the fan is switched on / off depending on the temperature, that is,

together with the valve.

It is switched off by

∂leaving the heating or cooling sequence, provided the function “Temperature-

dependent fan control “ is activated, or

∂manually changing to standby , provided plant conditions do not call for frost

protection mode, or

∂activating an external operating mode changeover switch, provided plant conditions

do not call for energy saving or frost protection mode, or

∂turning the controller’s power supply off.

The heating valve receives the OPEN command via control output Y11 when

1. the measured room temperature lies by half the switching differential below the

setpoint, and

2. the heating valve has been fully closed for more than one minute.

The heating valve receives the CLOSE command via control output Y11 when

1. the measured room temperature lies by half the switching differential above the

setpoint, and

2. the heating valve has been fully open for more than one minute.

The cooling valve receives the OPEN command via control output Y21 when

1. the measured room temperature lies by half the switching differential plus the dead

zone above the setpoint (x ″w + xdz + ½ SDC) and

2. the cooling valve has been closed for more than one minute.

The cooling valve receives the CLOSE command via control output Y21 when

1. the measured room temperature lies by half the switching differential plus the dead

zone below the setpoint (x > w + xdz - ½ SDC) and

2. the cooling valve has been open for more than one minute.

Heating / cooling mode

Y11

Xdz

? SDH ? SDH

? SDC ? SDC

Y21

3023D01

癈

]

The RCC30 provides control either depending on the measured room temperature or

depending on the fan coil unit’s return air temperature. Changeover is automatic if a

QAH11.1 cable temperature sensor is connected to the device.

Fan operation

Heating mode

OFF

Cooling mode

OFF

Return air tempera-

ture

TRoom temperature

SDH Switching differential "Heating"

SDC Switching differential "Cooling"

Xdz Dead zone

wRoom temperature setpoint

Y11 Manipulated variable "Heating valve"

Y21 Manipulated variable "Cooling valve"

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Siemens Room temperature controller CE1N3023en

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The room temperature setpoint can be limited in increments of 1 K by making use of

the minimum and maximum limitation facility. Arbitrary setpoint readjustments can thus

be prevented.

Operating modes

The following operating modes are available:

Heating or cooling mode with automatic changeover and with manually selected fan

speed III, II or I. In normal operation, the controller maintains the adjusted setpoint in

heating mode and, in cooling mode, a temperature level represented by the setpoint

plus the dead zone.

The frost protection function is activated only when DIP switch no.4 is set to OFF.

Frost protection mode can be activated either

∂by manually switching to standby

∂by activating the external operating mode changeover switch, provided DIP switch

no.2 is set to OFF

If the room temperature falls below 8 °C, the controller will automatically switch to frost

protection mode. In that case, the heating valve opens and the fan operates at the se-

lected speed. If the operating mode selector is in position standby , the fan will oper-

ate at speed I. The room temperature is maintained at a setpoint of 8 °C and the set-

point adjusted by the user will be ignored.

If frost protection mode is locked (DIP switch no.4 in position ON), standby is locked

also, which means that the controller will not switch to standby but to OFF.

In energy saving mode, the setpoint of heating is 16 °C and the setpoint of cooling

28 °C, independent of the position of the setpoint knob. This operating mode will be

activated when input D1 for operating mode changeover is active and DIP switch no.2

is set to ON.

A changeover switch can be connected to status input D1-GND. When the switch

closes its contact (caused by an open window, for instance), the operating mode will

change from normal operation to energy saving mode (provided DIP switch no.2 is set

to ON), or from normal operation to standby (provided DIP switch no.2 is set to OFF). If

the room temperature falls below 8 °C and if DIP switch no.4 is set to OFF, frost protec-

tion mode will become active.

The operating action of the switch (N.C. or N.O.) can be selected.

Ordering

When ordering, please give name and type reference.

The QAH11.1 temperature sensor (used as a return air temperature sensor) and zone

valves are to be ordered as separate items.

Equipment combinations

Type of unit Type reference Data sheet*)

Temperature sensor QAH11.1 1840

Room sensor QAA32 1747

Motoric on/off actuator SFA21... 4863

Thermal actuator (for radiator valve) STA21... 4893

Thermal actuator (for small valve 2,5 mm) STP21... 4878

*) The documents can be downloaded from http://siemens.com/bt/download.

Energy saver

Normal operation

Frost protection mode

Energy saving mode

Operating mode

changeover switch

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Siemens Room temperature controller CE1N3023en

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Mechanical design

The unit consists of two parts:

∂A plastic housing which accommodates the electronics, the operating elements and

the built-in room temperature sensor

∂A mounting base

The housing engages in the mounting base and snaps on.

The base carries the screw terminals.

The DIP switches are located at the rear of the housing.

3021Z01

2 5 6 13 4

1. Operating mode selector

(standby , heating or cooling mode with manual selection of fan speed)

2. LEDs for indicating heating mode, cooling mode and fan operation

3. Setting facility for minimum setpoint limitation

(in increments of 1 K)

4. Setting facility for maximum setpoint limitation

(in increments of 1 K)

5. Room temperature setpoint knob

6. Set of DIP switches

DIP switch no. Meaning Position ON Position OFF

1Fan control Fan control is temperature-

dependent in all operating

modes

Fan control in normal operation is tem-

perature- independent1)

2Operating mode change-

over via external switch

Changeover between normal

operation and energy saving

mode

Changeover between normal operation

and standby 1)

3Operating action of switch

for external operating

mode changeover

Changeover activated when

contact of switch is closed

(N.O.)1)

Changeover activated when contact of

switch is open

(N.C.)

4Standby Frost protection function not

enabled

Frost protection function enabled 1)

5Switching differential 1 K in heating mode 1)

0.5 K in cooling mode 1)

4 K in heating mode

2 K in cooling mode

6Dead zone in

normal operation

2 K 1) 5 K

1) Factory setting

Setting and operating

elements

Legend

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Siemens Room temperature controller CE1N3023en

Building Technologies 2017-11-14

Accessories

Description Type reference

Adapter plate 120 x 120 mm for 4“ x 4“ conduit boxes ARG70

Adapter plate 96 x 120 mm for 2“ x 4“ conduit boxes ARG70.1

Adapter plate for surface wiring 112x130 mm ARG70.2

Engineering notes

Mounting location: on the wall or inside the fan coil unit. Not in niches or bookshelves,

not behind curtains, above or near heat sources and not exposed to direct solar radia-

tion. Mounting height is about 1.5 m above the floor. The connecting wires can be run

to the controller from a recessed conduit box.

Check the settings of the DIP switches no.1 through no.6 and change them if required.

If setpoint limitation is required, use the minimum and maximum limitation facility (en-

ergy saver).

After applying power, the controller makes a reset during which the fan LED flashes,

indicating that the reset has been correctly made. This takes about 3 seconds. Then,

the controller will be ready to operate and the LED stops flashing,

∂The cables used must satisfy the insulation requirements with regard to

mains potential.

∂Sensor input B1-M carries mains potential. If the sensor’s cables must be extended,

the cables used must be suited for mains voltage

Warning!

No internal line protection for supply lines to external consumers

(Q1, Q2, Q3, Y11, Y12)

Risk of fire and injury due to short-circuits!

∂Adapt the line diameters as per local regulations to the rated value of the installed

overcurrent protection device.

The controller is supplied with Mounting Instructions.

Disposal

The device is considered an electronic device for disposal in terms of the Euro-

pean Directive 2012/19/EU 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.

Mounting, installation

and commissioning

notes

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Siemens Room temperature controller CE1N3023en

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Technical data

Operating voltage

AC 230 V

+10/-15 %

Frequency 50/60 Hz

Power consumption max. 6 VA

No internal fuse

External preliminary protection with max. C 10 A circuit breaker in the supply line re-

quired under all circumstances

Control outputs Q1, Q2, Q3

Rating

AC 230 V

max. 600 VA

Control output Y11, Y21 (N.O. contacts)

Rating

AC 230 V

max. 300 VA

Signal input B1 for return air sensor QAH11.1, Safety class II

NTC resistor 3kΩat 25°C

Status input D1 and GND

Contact sensing

Insulation against mains

SELV DC 6-15 V / 3-6 mA

4 kV

Perm. cable length with copper cable 1.5 mm2

for connection to terminals B1, B2 and D1 80 m

Setpoint setting range 8...30 °C

Max. control deviation at 25 °C max. °0.7 K

Switching differential in heating mode SDH

(selectable)

1 K or 4 K

Switching differential in cooling mode SDC

(selectable)

0.5 K or 2 K

Dead zone in normal operation 2 K or 5 K

Setpoint «Energy saving mode », heating 16 °C

Setpoint « Energy saving mode », cooling 28 °C

Setpoint «Standby » 8 °C

Operation

Climatic conditions

Temperature

Humidity

to IEC 60721-3-3

class 3K5

0...+50 °C

<95 % r.h.

Transport

Climatic conditions

Temperature

Humidity

Mechanical conditions

to IEC 60721-3-2

class 2K3

,25...+70 °C

<95 % r.h.

class 2M2

Storage

Climatic conditions

Temperature

Humidity

to IEC 60721-3-1

class 1K3

,25...+70 °C

<95 % r.h.

EU Conformity (CE) CE1T3020xx *)

RCM Conformity CE1T3020en_C1 *)

Safety class II to EN 60 730-1

Pollution class normal

Degree of protection of housing IP30 to EN 60 529

The product environmental declaration CE1E3020*) contains data on envi-

ronmentally compatible product design and assessments (RoHS compli-

ance, materials composition, packaging, environmental benefit, disposal).

*) The documents can be downloaded from http://siemens.com/bt/download.

Power supply

Operational data

Environmental

conditions

Norms and standards

Environmental

compatibility

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Siemens Room temperature controller CE1N3023en

Building Technologies 2017-11-14

Connection terminals Use solid wires or prepared

stranded wires.

2 x 0.4-1.5 mm2or 1 x 2.5 mm2

Weight 0.23 kg

Colour of housing front White, NCS S 0502-G (RAL9003)

Connection terminals

3023G01

LB1M D1 GND

N Q1 Q2 Q3 Y11 N Y21

SELV

L, N Operating voltage AC 230 V

B1 Status input “Return air temperature sensor“

MMeasuring neutral “Return air temperature

sensor“

D1, GND Status input for potential-free operating mode

changeover switch

(operating action can be selected)

Q1 Control output “Fan speed I“, AC 230 V

Q2 Control output “Fan speed II'“, AC 230 V

Q3 Control output “Fan speed III'“, AC 230 V

Y11 Control output '“Valve“, AC 230 V

Y21 Control output “Valve“, AC 230 V

Connection diagram

B1 Return air temperature sensor (QAH11.1)

M1 Three-speed fan

N1 RCC30 room temperature controller

S1 External operating mode changeover switch

Y1 Zone valve MVE.../ MXE... for heating mode

Y2 Zone valve MVE.../ MXE... for cooling mode

General

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Siemens Room temperature controller CE1N3023en

Building Technologies 2017-11-14

Issued by

Siemens Switzerland Ltd.

Building Technologies Division

International Headquarters

Gubelstrasse 22

CH-6300 Zug

Tel. +41 58-724 24 24

Technical specifications and availability subject to change without notice.

www.siemens.com/buildingtechnologies

Dimensions

96,6

114,15

42,8

3021M01

3021M02

28 28

2828

26 30

3530

11,8

104

unit

baseplate

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