Gdb-glb181.1e3 Vav Compact

8/10/2019 Gdb-glb181.1e3 Vav Compact

1/14

Siemens Building Technologies CM2N3544E / 06.1999

Landis & Staefa Division 1/14

3544

OpenAir

VAV compact controllersGDB181.1E/3GLB181.1E/3

Compact controllers for plants with variable and constant air volume with the air

volume as an auxiliary variable. Comprised of pressure difference sensors, digital

air volume controller and actuator;

Operating voltage AC 24 V;

P-response, nominal torque 5/10 Nm, air damper working range mechanically

adjustable between 0 and 90, prewired with 0.9 m long connecting cable;

Fully compatible to RCE84.1... and SQE92.1....

Used primarily to control the room temperature in individual rooms and zones of

ventilation and air conditioning plants working with variable or constant air volume, in

cases where n o mechanical (direct acting) constant air volume controller1)

is planned

and where the air volume is required as an auxiliary variable1)

.

1) To keep constant the air volume on pressure fluctuations in a system

The unit can be used for:Supply air control

Extract air control

Supply / extract air cascade control with

proportional control 1 : 1

proportional control 1 1 (over- / underpressure)differential control 1 1 (over- / underpressure)

Air damper nominal torque up to 5 or 10 Nm

For air throttles with mechanic (direct acting) constant air volume controller, use the

TEC controllers.

AC 24 V operating voltage

Torque Pressure range

0..300 Pa

5 Nm GDB181.1E/310 Nm GLB181.1E/3

Use

Note

Type summary


2/14

CM2N3544E / 06.1999 Siemens Building Technologies

2/14 Landis & Staefa Division

Description Type/Order Number

Air filter 4 287 1088 0

When ordering, indicate the type designation or the order number of the unit or the

accessories, e.g.: GDB181.1E/3

The following parts are not mounted on delivery:

a mounting bracket with two fixing screws

one centring element for shaft diameters 8...10 mm (only forGLB181.1E/3).The VAV compact controllers are supplied with a 0.9 m long, fully wired connecting

cable.

Unit Type Data sheet

Room temperature controller RCE84.21, RCE84.22 3542, 3543

POLYGYR product range 3400

TEC product range 3601

DESIGO RX product range: 38xx

Setting unit AST10 5851

The VAV compact controller GDB181.1E/3or GLB181.1E/3can be used with or without

an internal VAV/CAV controller.

The following parameter are available in the unit:

Parameters Range Factory setting

Function type VAV+CAV / 3pt+sensor VAV+CAV

minV 1...2.55 1

minV1)

20...+60 % 0 %

maxV1)

40...120 % 100 %

Motor rotational direction Left rotation/ right rotation Right rotation

Address (only for DESIGORX) 9 / 10 / 11 / 12 9

1) If the function type "3pt+sensor" has been selected for the VAV compact controller, a value can be

set, but does not have any influence

The setting of parameters "Motor direction" and "Address" (only in connection with

DESIGORX...) is made at the DIL switches.

Adjustment of all other parameters occurs by means of the setting unit AST10via

terminal UC with digital communication.

The VAV controllers GDB181.1E/3or GLB181.1E/3together with the RCE84.21forms

a room temperature cascade controller with the room temperature as the main control

variable and with the air volume as the auxiliary control variable.

In this control type, the deviation of the room temperature defines the setpoint for the air

volume. The air volume is then kept at this setpoint by the auxiliary control, i.e., the

pressure fluctuations in the duct, which appear as a fault variable, have no influence on

the air volume and thus no influence on the room temperature.

The control response for the "Air volume" auxiliary variable is P (proportional).

The air volume actual value in the air duct is acquired via the differential pressure p by

means of a membrane pressure sensor. The differential pressure is converted

electronically to an air volume signal, which is made available at terminal UC (core 9) as

a DC 0...10 V output signal (e.g. for air volume indication).

Accessories (optional)

Ordering anddelivery

Equipmentcombinations

Technical design

.

.

.

.

.

.

Effect with VAV/CAV

controller


3/14



Legend1 Air volume actual value

2 Flow resistance duct (schematic)

3 Measuring l ine

4 Static (membrane) differential pressure sensor

Switching terminal input Y defines the type of air volume control.

The following table shows the influence of switching terminal inputs Y on both controltype and air damper control.

VAV control CAV control

Y (core 8) DC 0...10 V1)

DC 0...10 V DC 0...10 V1)

DC 0...10 V open open open open

Y1 (core 6) open G0 G0 Open open G0 G0 open

Y2 (core 7) open open G0 G0 open open G0 G0

Effect VAV Right rotation2)

complete

opening

VAV Left rotation2)

complete

closure

minV Right rotation2)

complete

opening

maxV Left rotation2)

complete

opening

1) Complete closure in the VAV range occurs on Y = DC 1.5 ... 0.5 V

2) Applies when parameter "Air damper direction" at the DIL switches is set to "Right rotation";

otherwise, the contrary applies

The DC 010 V signal at terminal Y serves as the setpoint for the air cascade control

loop. The setpoint, in dependence of the pressure situation in the supply air duct and

within the limits of maxV and minV , determines the required air volume.

Depending on the input switch setting (open/close) of inputs Y1 and Y2, control occurs

to the desired CAV value. With an open input, the GDB181.1E/3or GLB181.1E/3

controls to minV , and with a closed input to maxV .

With the aid of parameter Vn , the measuring range of the GDB181.1E/3or

GLB181.1E/3can be adjusted at the factory (box manufacturer) to the respective

nominal volume of the unit for the air boxes. This ensures that the maximum permissible

nominal volume of the unit is not exceeded.

100 % nominal air volume of the air box then corresponds to DC 10 V of the measuring

range of the GDB181.1E/3or GLB181.1E/3. This setting can be checked at terminal

UC.

With the aid of the setting parameters minV and maxV , the air volume can be limited by a

minimum and maximum air volume.

With supply/extract air control, a room over- or underpressure up to 20 % max. at equal

duct cross sections and pressure ranges with the aid of parameters maxV and minV of

the cascade controller.

For supply and extract air control, parameters maxV and minV allow for duct

compensation of max. 20 %.

By switching signal inputs Y1 and Y2, the air dampers can be completely opened or

closed, independent of maxV and minV .

Full closure of the air volume occurs via the digital signal input Y2. If this input is

connected to ground (G0) and if signal input Y1 is open, full closure occurs without

consideration of minV .

The signal is triggered by an external switching contact (e.g. window contact) or theRCE84.21room temperature controller.

3544Z01

1 12

3

4

3

Variable (VAV) or constant

(CAV) air volume control

.

.

.

.

.

.

.

.

.

VAV control

CAV control

Nominal air volume

setting ( Vn )

Minimum and maximum

limitation of the air volume

Overpressure /

underpressure setting

Compensation of different

duct cross sections

Complete closure of air

dampers

Full closure of the air

volume


4/14



In order to utilise the VAV compact controller GDB181.1E/3or GLB181.1E/3without the

VAV/CAV controller, reset the "Function type" parameter of "VAV+CAV" to "3pt+sensor".

This can be done with the aid of setting unit AST10.

In order for the parameter change to become effective, voltage supply (AC 24 V) must

be interrupted.

With this function type setting, the VAV compact controller records the actual value for

the air volume in the air duct via the differential pressure p with static pressure sensor.

The differential pressure is converted electronically into an air volume signal which is

available at terminal UC as a DC 0..10 V output signal (air volume actual value).

Switching the terminal inputs Y1 and Y2 defines the direction of rotation of air dampers(3-position control).

The following table shows the influence of terminal switching on air damper control for

function type "3pt+sensor".

3pt+sensor

Y (core 8) open open open open

Y1 (core 6) open G0 G0 open

Y2 (core 7) open open G0 G0

Effect none Right

rotation1)

Left rotation1)

Left rotation1)

1) Applies when parameter "Air damper direction" at the DIL switches is set to "Right rotation";

otherwise, the contrary applies

The VAV compact controller is designed for attachment on damper shafts that are at

least 30 mm long. It consists of a base group and a two-part housing.

The base group consists of:

a base plate made from steel with air damper attachment mechanism for varying shaftcross sections and diameters (see "Dimensions") and a rotary angle limiter

maintenance-free, noise-free spur gearing

magnetic hysteresis coupling with low contact power transmission and an actuator

that is thus protected against locking and overload, even during continuous operation

The housing is made from hard plastic. Do not remove its cover. The following is located

below the cover:

the controller electronics

the membrane pressure sensor with electronic circuit

the synchronous motor for damper actuation.

For manual adjustment of the air dampers, the gearing can be decoupled via the

gearing attachment mechanism on the side of the housing.A centring element made from hardened, sintered steel is available for the VAV compact

controller GLB181.1E/3(10 Nm) (separately supplied accessory). This ensures a proper

connection between damper shafts of smaller diameters (810 mm) and the connector

plug and the longitudinal movement of the VAV compact controller is reduced by means

of excentric movement.

The flows in the measured line are sufficiently low so that no contamination of the flow

sensor must be expected. In severely contaminated environments, we recommend

using the 4 287 1088 0air filter.

The mounting accessories (mounting bracket) as part of the delivery ensures full

adoption of the reaction torque to maximum load.

Electrical connection occurs via a fixed connecting cable at the bottom of the housing.

The cable ends are equipped with ferrules.

Effect without

VAV/CAV controller

Mechanicaldesign


5/14



90

90

45

address1 1

0 0

S3 S2 S1

11

12

13

14

7

8

109

1

6

32 4 5

35

44Z02

1 Shaft f ixing screw

2 Measuring element for the connecting line to the 'cable gland for lower pressure' of the measuring

cross on the box

3 Measuring element connection (+) for the connecting line to the 'cable gland for higher pressure' of

the measuring cross on the box

4 6-core connecting cable

5 Gearing attachment mechanism

6 Connector plug (shaft opening)

7 Adjustment lever with shaft fastening screw

8 Rotational angle scales (0...90/ 90...0)

9 DIL switch cover

10 DIL switch block

Switch no. 1: Motor direction for complete closure

Switch no. 2 and 3: Address (only for DESIGORX)

Meaning of coloured switch settings:

DIL switch no. 1

(S1)

Motor rotational

direction

1) Right rotation

Left rotation

DIL switch no. 3

(S3)

DIL switch no. 2

(S2)

Device address

(Decimal)

0 1) 0 1) 9

0 1 10

1 0 11

1 1 12

1) Factory setting

11 Rotational angle limiter (M4 cylinder screw, 3 mm internal hexagon),

stepless adjustment between 0 and 90

12 Rotational angle position indicator

13 Centring element for GLB...1E, for 810 mm shaft diameter

14 Mounting bracket

The DIL switches can be sealed.

For environmentally compatible disposal, the larger plastic parts have been labelled as

per ISO/DIS 11 469.

Setting, operating and

connecting elements

Legend

Disposal


6/14



AC 24 V operating voltage is necessary for supplying the VAV compact controller.

The operating voltage must comply with the requirements for safety extra-low voltage

(SELV) as per EN 60 730.

Use safety insulating transformers with double insulation in accordance with

EN 60 742; The transformers must be made for 100% runtime.

Observe all local safety rules and regulations pertaining to sizing and protecting

transformers.

Electric connection in parallel of the VAV compact controllers GDB181.1E/3 withGLB181.1/3 is permissible only if the operating voltage is within the required tolerance.

Voltage drops at the feed lines must be considered.

Do not mechanically couple the actuators.

Selection of the VAV compact controller type depends on several torque factors. After

obtaining the damper torque rating (Nm/m2) from the manufacturer and determining the

damper area, calculate the total torque required to move the damper as follows:

Total Torque = Torque Rating Damper Area

Determine the required type of VAV compact controller from the table below:

If [ ])1SF

NmtorqueTotal then use type

5 Nm GDB181.1E/3(5 Nm)

10 Nm GLB181.1E/3(10 Nm)

1) Safety factor SF: When calculating, non-definable variables such as slight misalignment, damper

age, etc. must be included as a safety factor.

We recommend a safety factor of 0.80 (or 80 % of the torque characteristic).

Do not open the actuator!

The unit is maintenance-free. Any repair work must be conducted by the manufacturer

only.

The setting values for Vn , maxV , minV and the selected function type ('VAV+CAV' or

'3pt+sensor') must be entered in the plant papers.

There are no limits to the mounting position, however, the housing must remain

accessible (gearing attachment mechanism!). The cable connection for UC must be

accessible for the AST10 setting unit (e.g. terminal in the control cabinet).

Observe the permissible ambient temperature and humidity (refer to "Technical data").

The mounting brackets must be installed so that the pivot's insertion in the base plate of

the VAV compact controller's base group is sufficient and enough play is ensured

toward the shaft centre; this is necessary especially for small shaft diameters which

cause bigger excentric movements.

Use the centring element at shaft diameters of 810 mm to ensure a clean connection.

Mount this element between the damper shaft and the connector plug as per the

mounting instructions.

Manually adjust the actuator only when no voltage is applied.

Where required, you can set the rotational angle range by positioning the adjusting

screw accordingly.

The VAV compact controller is delivered with mounting instructions.

Engineering notes

Electric parallel switchingof varying VAV compact

controller types

Note

Selection of the VAV

compact controller type

Caution, maintenance

Setting values

Mounting notes

Mounting position

Ambient conditions

Mounting bracket

Centring element

GLB181.1E/3(10 Nm)

Manual adjustment

Mechanical limitation of

rotational angle

Mounting instructions


7/14



Check the mechanical settings as per the plant-specific requirements and especially

to ensure that the dampers close tight

Check the rotational direction

Use the red slider (while no voltage is supplied) to manually adjust the dampers or the

actuator.

Fasten the actuator securely to avoid side load and blocking of the actuator

Check lines for differential pressure measurement for correct connection

Check the settings at the DIL switches as per the plant documentation and seal them,

where required

The setting unit AST 10 is needed for checking or setting the setting values for Vn ,

maxV , minV and for the function type ('VAV+CAV' or '3pt+sensor'). After separating the

AST10 from the VAV compact controller, wait for one minute before Y, Y1 and Y2

work as per the specifications

The sensor signal is correct after a maximum of two minutes following application of

AC 24 V operating voltage or after interruption of the voltage supply. During this time,

the VAV compact controller conducts zero point calibration of the differential pressure

sensor

If the AST10 setting unit is connected, no analogue voltage can be measured at

output UC.

Operating voltage AC 24 V 20 %

Safety extra-low voltage (SELV) or protection by extra-low

voltage (PELV) as per HD 384

Requirements of external safety insulating transformer (100% ED) as per EN 60 742

Frequency 50 / 60 Hz

Supply line fuse Max. 10 A

Power consumption for transformer sizing 6 VA/3.5 W

Consumption on

Holding

RunningCompensation mode

Running + compensation mode

2 VA/1 W

3 VA/3 W6 VA/3.5 W

7.5 VA/5.5 W

Input voltage DC 010 V

Max. permissible input voltage DC 35 V

Limited to DC 11 V

for complete closure in VAV range DC 1.5 . . . 0.5 V

Input resistance


8/14



Operation IEC 721-3-3

Climatic conditions Class 3K5

Mounting location interior, weather-protected

Temperature 0....50 C

Humidity (non-condensing) 10 Nm

Maximum torque < 14 Nm

Nominal rotational angle (with position indication) 90

Maximum rotational angle (mechanic limitation) 952Runtime for nominal rot. angle 90, motor operation at 50/60 Hz 150 s / 125 s

Periodic switch-on time of the motor on damper blocking after 24 h each

Rotational movement direction (defined by DIL switch setting) clockwise / counterclockwise

Mechanical life 105cycles

Shaft cross section

Round 8...16 mm

Round, with centring element (only for GLB181.1E/3) 810 mm

Square 6...12 mm

Min. shaft length 30 mm

Max. shaft hardness < 300 HV

3-position controller with hysteresis

Max. air volume maxV , adjustable 40...120 %

Min. air volume minV , adjustable 20...+60 %

Nominal air volume Vn corrective factor 1.00...2.55

Measuring range see Type summary

Accuracy across 2...100 % of the pressure range

at 25 C, 990 hPa, Vn = 1 and any mounting position 2.5 % of measuring range

Time constant 1 s

Max. permissible operating pressure 3000 Pa

Max. permissible side load 3000 Pa

Environmental conditions

Standards

Product safety

Electromagnetic

compatibility

conformity as per

Dimensions

Weight

Actuator

Mechanical data

Suitable damper shafts

Controller

Sensors


9/14



The illustrations show only principal connections of signal lines. Switch-off functions and

manipulations are not part of the illustrations as they differ from plant to plant.

If a window contact, that was switched via terminal Y2 (core 7) of the GDB.../GLB...or

E1 of the RCE84.21, is open: Window closed, i.e., comfort mode. If this is not the case,

we must assume that the window is closed. For applications with complete closure of

the air volume, the terminals Y2 (core 7) of the reference controller and of the cascade

controller must be connected.

RCE84.21

p MY2

Y

Y

Z1

Y20

Y10

E1

T P

P

M

G0

Y2p M

UC

GDB181.1E/3GLB181.1E/3

GDB181.1E/3GLB181.1E/3

Window contact

Outside temperaturecompensation

3544S01E

RCE92.1RCE93.1

QAA12

AO1...4

RS1...4

T

3544S02

p MY

Y

p M

UC

GDB181.1E/3GLB181.1E/3

GDB181.1E/3GLB181.1E/3

p M

GDB181.1E/3GLB181.1E/3

p M

T

QAA11...14

RCE92.1/RCE93.1

3544S03

GDB181.1E/3GLB181.1E/3

Y1 Y1

Y2

UC UC

Y2

Plant examples

Note

Plant example 1

function type "VVS/KVS":

Control loop without

communication

Plant example 2

function type "VVS/KVS":

Control loop with

communication

Plant example 3

function type "3pt+sensor"

.

.

.

.

.

.

.

.

.

.

.

.


10/14



VAV differential pressure control 1 : 1

Master (supply air): minV = 20 %, maxV = 80 %, Vn = 1

Slave (extract air): minV = 0 %, = maxV 100 %, Vn = 1

Reference signal: Y20 = 2.5 V

Result: Vmaster = 35 %, Vslave = 35 %

Vmin [%]Vmin [%] Vmax [%]

60

50

40

30

20

10

0

-10

-20

120

110

100

90

80

70

60

50

40

30

20

10

100

90

80

70

60

50

40

30

20

10

10

9

8

7

6

5

4

3

2

1

60

50

40

30

20

10

0

-10

-20

120

110

100

90

80

70

60

50

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30

20

10

100

90

80

70

60

50

40

30

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10

10

9

8

7

6

5

4

3

2

1

00

V [%] Vmax [%] V [%] UC [V]

0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10Y [V] Y [V]

UC [V]

Master controller(Supply air)

Slave controller(Extract air)

Control range Controlrange

Reference signal DC 0...10 VY20 (RCE84.21 room controller) 35

44D01E

VAV differential pressure control 1 1, with 20 % room overpressure


Slave (extract air): minV = 20 %, maxV = 80 %, Vn = 1



V [%]Vmin [%]

60

50

40

30

20

10

0

-10

-20

120

110

100

90

80

70

60

50

40

30

20

10

100

90

80

70

60

50

40

30

20

10

10

9

8

7

6

5

4

3

2

1

0

120

110

100

90

80

70

60

50

40

30

20

10

100

90

80

70

60

50

40

30

20

10

10

9

8

7

6

5

4

3

2

1

0

60

50

40

30

20

10

0

-10

-20

0 1 2 3 4 5 6 7 8 9 10Y [V] Y [V]

1090 1 2 3 4 5 6 7 8

Vmax [%] UC [V] UC [V]V [%]Vmax [%]Vmin [%]




Reference signal DV 0...10 VY20 (RCE84.21 room controller)

3544D02E

VAV differential pressure control 1 1, with 20 % room underpressure





V [%]Vmax [%]

60

50

40

30

20

10

0

-10

-20

120

110

100

90

80

70

60

50

40

30

20

10

100

90

80

70

60

50

40

30

20

10

10

9

8

7

6

5

4

3

2

1

0

10

9

8

7

6

5

4

3

2

1

0

100

90

80

70

60

50

40

30

20

10

120

110

100

90

80

70

60

50

40

30

20

10

60

50

40

30

20

10

0

-10

-20

0 1 2 3 4 5 6 7 8 9 10Y [V]Y [V]

0 1 2 3 4 5 6 7 8 9 10

Vmin [%] UC [V] V [%]Vmax [%]Vmin [%] UC [V]





44D03E

Setting examples

Setting example 1

Setting example 2

Setting example 3


11/14



VAV relational control 1 1,

with increasing room overpressure in proportion to the supply air volume





60

50

40

30

20

10

0

-10

-20

120110

100

9080

70

60

50

40

30

20

10

100

9080

70

60

50

40

30

20

10

10

98

7

6

5

4

3

2

1

0

10

98

7

6

5

4

3

2

1

0

100

9080

70

60

50

40

30

20

10

120110

100

9080

70

60

50

40

30

20

10

60

50

40

30

20

10

0

-10

-20

0 1 2 3 4 5 6 7 8 9 10 0Y [V] Y [V]

1 2 3 4 5 6 7 8 9 10

Vmin [%] Vmax [%] V [%] UC [V] Vmin [%] Vmax [%] V [%] UC [V]





44D04E

VAV relational control 1 1,with increasing room underpressure in proportion to the supply air volume





Vmax [%]

60

5040

30

20

10

0

-10

-20

120

110

100

90

80

70

60

504030

20

10

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90

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504030

20

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10

9

8

7

6

543

2

1

0

10

9

8

7

6

543

2

1

0

100

90

80

70

60

504030

20

10

120

110

100

90

80

70

60

504030

20

10

60

5040

30

20

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0

-10

-20

0 1 2 3 4 5 6 7 8 9 10Y [V] Y [V]

0 1 2 3 4 5 6 7 8 9 10

Vmin [%] V [%] UC [V] Vmax [%]Vmin [%] V [%] UC [V]





44D05E

V Air volumeVn Nominal air volume

minV Minimal air volume

maxV Maximum air volumeVmaster Air volume of the supply air controller (master)

Vslave Air volume of the extract air controller (slave)

Y DC 0...10 V input signal (air volume setpoint)

UC DC 0...10 V output signal (air volume actual value)

Actual value [%] =Setpoint [%] x (Vmax Vmin ) [%]

+ Vmin[%]

Actual value [V] =

Setpoint [V] x (Vmax Vmin ) [V]

+ Vmin[V]

100 [%]

10 [V]

Setting example 4 .

.

Setting example 5 ..

Legend for setting

examples 1 to 5

Actual value formula


12/14



The VAV compact controllers are supplied with a fixed connecting cable. The connected

units must galvanically be applied to the same G0.

( )

p

(G) (Y2) (Y1) (Y)

1 7 6 8

(G0) (UC)

2 93544G01

All connecting wire cores are colour-coded and labelled.

Wirelabelling

Core colour Landis & Staefa-terminal code

Meaning

1 Red G Phase AC 24 V

2 Black G0 System neutral AC 24 V

6 Purple Y1 Positioning signal "Motor direction" (switched G0),dependent of the settings at DIL switch 1 (for factorysetting = right rotation)

7 Orange Y2 Positioning signal "Motor direction" (switched G0),dependent of the settings at DIL switch 1 (for factorysetting = left rotation)

8 Grey Y Air volume positioning signalDC 0 ... 10 V(setpoint)

9 Pink UC Air volume measuring signalDC 0 ... 10 V (actualvalue) or communication signal for connected settingunit

Control loop without communication

G

G Y2 Y1 YG E1

G0G0 Y10 Y20

G0

b)a)

AC2

4V

N1N2

3544A01

UC

Control loop with communication

3544A02G

RS1...4

GG RS1...4

G0 AO1...3

G Y2 Y1 Y

G0

G0

b)

AC2

4V

B1

N3 N1UC

Diagrams

Internal diagram

(applies to all types)

Legend

Connection diagram 1



13/14



VAV supply air or extract air control

3a:modulating control 3b: modulating control between 3c: modulating control between

minV and minV maxV and minV and complete closure minV and maxV and complete opening

G

G0

DC 0...10 V

G Y2 Y1 Y

G0

3544A03

N1AC2

4

V

S1

UC

G

G0

DC 0...10 V

G Y2 Y1 Y

G0

3544A04

N1AC2

4

V

S1

UC

G

G0

DC 0...10 V

G Y2 Y1 Y

G0

3544A10

N1AC2

4

V

UC

CAV supply air or extract air control

4a:control to minV value 4b: control to maxV value

G

G Y2 Y1 Y

G0

G0

AC2

4V

N1

3544A0

5

UC

G

G Y2 Y1 Y

G0

G0

AC2

4V

N1

3544A0

6

UC

4c: Complete closure 4d:Complete openingG

G Y2 Y1 Y

G0

G0

AC2

4V

N1

3544A07

UC

G

G Y2 Y1 Y

G0

G0

AC2

4V

N1

3544A08

UC

B1 Room unit QAA12

N1 VAV compact controllers GDB181.1/3 or GLB181.1/3

N2 Room temperature controller RCE84.21

N3 Room temperature controllers RCE92.1 or RCE93.1

S1 Window contact (window closed = open contact)

a) For control unit "Heating"

b) For slave controller

The operating voltage on terminals G and G0 must comply with the requirements forsafety extra-low voltage (SELV) as per EN 60 730.

Use safety insulating transformers with double insulation in accordance withEN 60 742; The transformers must be made for 100% runtime.

Connection diagrams

3a to 3c

Connection diagrams

4a to 4c

Legend for connecting

diagrams 1 to 4


14/14

CM2N3544E / 06 1999 Siemens Building Technologies

Supply air / extract air control with TEC controller and GDB181.1/E3 or GLB181.1/E3

function type "3pt+sensor"

AC

24V

RS4

TxD RxD G0 PPS

G Y1 Y2

N1

G Y1 Y2

N3

RS3 RS2 RS1

G BO5 BO6BO4BO3G

B1

N2

G

G0

G0 G0

G

G0 3544A09

AI1 AI2M M

UC UC

N1, N2 VAV compact controllers GDB181.1E/3 or GLB181.1E/3

N3 TEC controllers RCE92.1 or RCE93.1

B1 TEC room unit, e.g. QAA11

The operating voltage on terminals G and G0 must comply with the requirements forsafety extra-low voltage (SELV) as per EN 60 730.

Use safety insulating transformers with double insulation in accordance withEN 60 742; The transformers must be made for 100% runtime.

59,5 43,5 87

137

90

34,1

2,3

68

min. 100

min.

200

min. 60

4

min.

6

12 20

4

d

2

5

180

10 - 16 mm

X

12 mm15 mm

8 - 16 mm

12 mm15 mm

3544M01

X =GLB181.1E/3 X =GDB181.1E/3


Legend for connection

diagram 5

Dimensions

Dimensions in mm 1999 Siemens Building Technologies AG

d = Mounting bracket

Documents

Gdb-glb181.1e3 Vav Compact