PRODUCT CATALOGUE 2024 | alre.de

AIR CONDITIONING TECHNOLOGY

ELECTRONIC CLIMATE CONTROLLER FOR COOLING CEILINGS, KTRRB SURFACE-MOUNTED INSTALLATION – DESIGN BERLIN 2000

TYPE / IMAGE

ITEM NO.

FEATURES

CIRCUIT DIAGRAM

EURO / PG

KTRRB-052.245

General features: ECO function; ‘heating / cooling / cooling interruption due to condensation / off’ display; ‘sensor break, sensor short-circuit, frost protection’ display; operating mode ‘off with frost protection monitoring’; relative scale; off / comfort / ECO switch External flow sensor (H / C sensor): for automatic switching of the controller to heating or cooling mode depending on the inflow temperature (‘Sensor 2’); alternatively, this input can be used as an H / C changeover contact ECO Contact: upon closing the contact, the ECO function is actuated Forced switch-off contact: external switch-off function with frost protection function Control function: heating and / or cooling, cooling interruption upon condensation of the dew point sensor, frost protection function in the switched-off condition

DA420700

see page 128

212.10 / I

Control range: 13 to 29 °C Setting range: − 8 to +8 °C Neutral zone: approx. 2 K Pipe system compatibility: 2-pipe and 4-pipe

Replacement for KTRRB-040.213

* An internal trimming potentiometer can be used to select whether control should be based on the internal (left stop) or external sensor (right stop). In the interme- diate positions, if both sensors are used, a weighting is applied to the internal room sensor and the external radiation sensor. The weighting allows for compen- sation 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 radiation sensor than to the internal room sensor.

Accessories: suitable valve actuators ZBOOA-040.100 (see page 151), suitable external sensors (‘Sensor 2’); see ‘Sensor technology’.

ACCESSORIES ITEM NO.

FEATURES

EURO / PG

TPS 1

Mounting / attachment: using clips on cooling ceiling capillary pipe Use: drywall cooling ceiling (plasterboard) with hung up capillary pipe mat, metal ceiling cooling ceiling with integrated capillary pipe system Sensor line extendable up to: 50 m with 2 x 0.5 mm² Scope of delivery: sensor, 2 clips for cooling pad

G8000299

65.80 / I

Mounting / attachment: using clips on cooling ceiling capillary pipe or cable ties on the pipe Use: pipe systems transporting cold water, plaster cooling ceiling with capillary tube system Sensor line extendable up to: 50 m with 2 x 0.5 mm² Scope of delivery: sensor, 2 clips for cooling pad, 2 cable ties

TPS 2

G8000300

65.80 / I

Mounting / attachment: attach to pipe by means of cable ties Use: pipe systems transporting cold water Sensor line extendible up to: 50 m with 2 x 0.5 mm² Scope of delivery: sensor, 2 cable ties

TPS 3

SN120000

58.90 / I

127

Catalogue 2024

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

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