PRODUCT CATALOGUE 2024 | alre.de

BUILDING AUTOMATION

BACNET ROOM CONTROLLER KTRBUU FLUSH-MOUNTED INSTALLATION – DESIGN BERLIN FLUSH-MOUNTED

TECHNICAL DATA

APPLICATION

Design:

Berlin flush-mounted PC, PMMA, ABS plastic

The alre BACnet individual room controller with graphic display was specially developed for time-dependent heating and cooling operation in 2 or 4-pipe systems. The controller can be used in a wide range of applications, such as hotels, residential, office and business premises as well as hospitals and schools. The communication takes place via BACnet according to DIN EN ISO 16484- 5 with the BACnet MS / TP network protocol. The room controller is therefore compatible with all common building automation systems. The controller corresponds to the BACnet profile ‘B-AAC’ (BACnet Advanced Application Controller). The predefined applications cover a wide range of applications for room tempera- ture control in room automation. Special colours such as anthracite and aluminium are available depending on the project.

Housing material: Operating voltage: Ambient temperature: Storage temperature: Permissible atmospheric humidity: Electrical connection:

230 V AC, 50 Hz

0 to 40 °C

−20 to +70 °C

max. 95% rel. humidity, non-condensing pluggable screw terminals Mains voltage side

0.75 – 2.5 mm² low voltage side 0.08 – 1.5 mm²

Mounting / attachment:

In flush-mounted socket – can be adapted to fit virtually any switch range (deep flush-mounted socket recommended) see adaptation list on page 50

Protection rating: Protection class: Safety and EMC:

IP30

II

according to DIN EN 60730

Max. switching voltage: Min. switching voltage:

230 V AC, 50 Hz 230 V AC, 50 Hz

Switching power:

690 W

Max. power consumption: Max. switching current:

approx. 1 W (2.2 VA)

per 3 (0.5) A (max. 5 valve actuators per output)

Switching element: Switching contact:

2 relays

2 NO contacts

Output signal:

Switching heating, cooling, heating / cooling, analogue 0 – 10 V (5 mA) to control a speed-controlled fan internal NTC, optional external ‘Sensor 2’ * (NTC 47k), dew point sensor

Sensor:

Control range: Setting range:

5 to 40 °C

standard setting range for heating (5 to 30 °C), second setting range for cooling (18 to 40 °C)

Hysteresis: Display type:

< 1 K

illuminated graphical display

Pipe system compatibility:

2-pipe and 4-pipe

TYPE / IMAGE

ITEM NO.

FEATURES

CIRCUIT DIAGRAM

EURO / PG

KTRBUu217.456#21

Surface finish: glossy Housing colour: pure white, similar to RAL 9010 Scope of delivery: controller, 50 x 50 mm cover, pure white (similar to RAL 9010), glossy, alre frame ‘Berlin’

UA230000

454.50 / IV

L N

230V~ 50Hz

SELV

max. 5mA

O3

N

0—10V

D− D+ I1

L

RS485

O2 O1

NTC TPS

3(0,5)A

* Depending on the selected system scheme, a menu setting can be used to select whether control should be based on the internal or external sensor. In the intermediate positions, if both sensors are used, a weighting is applied to the internal room sensor and the external temperature sensor. The weighting allows for compensation of different structural conditions such as large window areas or cardinal directions. For very slow controlled systems, it is recommended to assign a higher weighting to the temperature sensor than to the internal room sensor.

45

Catalogue 2023

Prices valid from 01.01.2024 - 31.12.2024, prices may be subject to change | V1

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