AIR CONDITIONING TECHNOLOGY
CLIMATE CONTROLLER ELECTRONIC WITH TRIAC OUTPUT (NOISELESS) SURFACE-MOUNTED ‘ULTRA-THIN’ INSTALLATION – DESIGN BERLIN 1000
TECHNICAL DATA
APPLICATION
Design:
Berlin 1000
This controller was specifically de- signed for heating / cooling regulation of 2-pipe systems used in hotels, homes and offices and can control up to 5 valve actuators (normally closed). The KTRTB’s internal sensor measures the room temperature and activates heating or cooling depending on the deviation from the configured setpoint temperature. As the switching element used is a triac rather than a relay or bimetal, the system operates without bothersome switching sounds. ECO function: if this function is select- ed, the temperature is adjusted down by 3 K in heating mode and up by 3 K in cooling mode.
Surface finish: Housing colour: Housing material:
glossy
pure white, similar to RAL 9010
ABS plastic 0 to 40 °C
Ambient temperature: Storage temperature: Permissible atmospheric humidity: Electrical connection:
−20 to +70 °C
max. 95% rel. humidity, non-condensing
screw-type terminals 0.5 mm² to 1.5 mm² surface / wall mounting (4-hole assembly on flush-mounted socket)
Mounting / attachment:
Protection rating: Safety and EMC:
IP30
according to DIN EN 60730
Max. power consumption:
< 0.8 W
Switching power: Switching element: Switching contact:
15 W
triac
NC contact NTC, internal
Sensor:
Control function: Control range:
heating or cooling
5 to 30 °C
Hysteresis:
0 K since control is practically continuous
Proportional range: General features:
approx. 1 K
ECO function; ‘heating / cooling’ display; ‘off with frost protection monitoring’ operating mode; mechanical range
restriction; scale: degrees Celsius; external setting
TYPE / IMAGE
ITEM NO.
FEATURES
CIRCUIT DIAGRAM
EURO / PG
KTRTB-211.108
Operating voltage: 230 VAC, 50 Hz Protection class: II, if properly mounted Max. switching current: 65 mA
MA700300
74.00 / I
Max. switching voltage: 230 VAC, 50 Hz Min. switching voltage: 230 VAC, 50 Hz Output signal: switching PWM (230 VAC, 50 Hz) ECO contact: 230 VAC, 50 Hz, optionally configurable as ECO or OFF function
KTRTB-211.108 / 03
MA700302
similar to KTRTB-211.108 but housing colour: traffic / studio white, similar to RAL9016
89.40 / I
KTRTB-251.108
Operating voltage: 24 VAC, 50 Hz Protection class: III, protective low voltage Max. switching current: 625 mA Max. switching voltage: 24 VAC, 50 Hz Min. switching voltage: 24 VAC, 50 Hz Output signal: switching PWM (24 VAC, 50 Hz) ECO contact: optionally configurable as ECO or OFF function
MA700400
55.50 / I
Accessories: suitable valve actuators ZBOOA
For accessories and dimension schematic see page 66.
121
Catalogue 2024
Prices valid from 01.01.2024 - 31.12.2024, prices may be subject to change | V1
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