Electronic climate controller for cooling ceilings, KTRRB Surface-mounted installation – Design Berlin 2000
Type/image
Item no.
Features
Circuit diagram
PG
KTRRB-052.245
General features: ECO function; “heating/cooling/ cooling interruption due to condensation/off” display; “sensor rupture, sensor short-circuit, frost protection” display; “off with frost protection monitoring” operating mode; relative scale; “off/ comfort/ECO” switch External flow sensor (H/C sensor): for automatic switching of the controller in 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 Control range: 13 … 29 °C Setting range: −8 … +8 °C Neutral zone: Approx. 2 K Pipe system compatibility: 2-pipe and 4-pipe
DA420700
see page 122
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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 intermediate positions, if both sensors are used, a weighting is applied to the internal room sensor and the external radiation 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 radiation sensor than to the internal room sensor.
Accessories: suitable valve actuators ZBOOA-040.100 (see page 144), suitable external sensors (“Sensor 2”); see “Sensor Technology”).
Accessories
Item no.
Features
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 Box contents: sensor, 2 clips for cooling pad
I
G8000299
TPS 2
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
G8000300
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Sensor line extendable up to: 50 m with 2 x 0.5 mm² Box contents: sensor, 2 clips for cooling pad, 2 cable ties
TPS 3
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 Box contents: sensor, 2 cable ties
SN120000
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Catalogue 2022 | Page 121
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