VTM 4000

Thermostats and ControlsFor households - Digital

A combined digital thermostat with PWM and the option to select one of the following operating modes: room temperature, floor + room, or floor only.

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2.8" LCD display (without backlight), user-selectable temperature readings – room only, floor only, or both. Weekly programme – up to 6 temperature changes per day between preset comfort and reduced temperatures, manual control mode, anti-freeze protection mode (5°C). Option to disable the thermostat via software, optional ‘Open Window Detection’ function, option to lock the controls (child lock).
Programme and system settings stored in EEPROM memory; time and date backed up by a high-capacity capacitor (so-called ‘supercap’) for a maximum of 3 days. A full charge of the capacitor requires a continuous power supply for at least 1 hour. Switching contact 16 A (maximum switched resistive load 2000 W), IP 31 protection rating; a 3 m floor sensor (NTC640-10k) is included in the pack. For installation in a KU 68 (installation box with a screw spacing of 62 mm).

Technical specifications

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VTM 4000
Protection rating	IP 31
Switching current	16 A
Temperature range – ambient	-20 … 50 °C
Temperature attenuation	via time programme
Operating indicator light	on the display
Hysteresis	1 °C
On/off switch	off
Code	52V 4200138