PRODUCT CATALOGUE 2025 | alre.de

AIR CONDITIONING TECHNOLOGY

ELECTRONIC CLIMATE CONTROLLER FOR COOLING CEILINGS, KTRRB SURFACE-MOUNTED INSTALLATION – DESIGN BERLIN 2000 Maßstab 1:1 Blatt A4

ILLUSTRATIONS

KTRRB

KTRRB-052.24x connection in a 2-pipe system

KTRRB

24V~

COM,GND,

H/K

NTC ext.

H/C Last/Load max. 1A

r.H.

ECO

AUS

Blatt A4 Maßstab 1 : 1

10 9 8

7 6 5 4 3 2 1

13 12 11

Elektronik

78,3

25,5

KTRRB-052.24x connection in a 4-pipe system KTRRB-052.24x Anschluss im 4-Rohr-Leitungssystem

Important note: The inflow channels of TPS-1 and TPS-2 are closed at the factory to avoid dirtying during assembly. After assembly, they must be shortened with a knife until they are flush with the wall or ceiling to ensure air circulation. The air ducts should be arranged such that soiling during operation is avoided. It is important that the air surrounding the sensor has the same temperature as the room air to be cooled. If the humidity and temperature of the air to be cooled (ceiling cooling system) is different from that of the air surrounding the sensor, condensation may be detected prematurely or too late. As regards TPS-3, contact with the PCB paths must be avoided to prevent long-term corrosion. Attention in case of sensor extension: laying parallel to conductors carrying a mains voltage can result in faults. The use of shielded conductors reduces sensitivity to electromagnetic fields. Blatt A4 Maßstab 1:1

24V~

COM,GND,

H/K

H

NTC ext.

max. 1A Last/Load

max. 1A Last/Load K

r.H.

ECO

AUS

10 9 8

7

3 2 1 6 5 4

13 12 11

Elektronik

Parallelverdrahtung für Heiz-Kühl-Umschaltung und/oder ECO mehrer Regler (max. 20 Regler)

ECO H C

C ECO H

C ECO H

r.H. max.5

r.H. max.5

r.H. max.5

Parallel wiring for heating / cooling changeover and / or ECO for several controllers (max. 20 controllers)

124

Catalogue 2025

Prices valid from 01.01.2025 – 31.12.2025, prices may be subject to change | V1

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