HERZ thermostatic head with remote sensor 20-50°C, M28x1.5, 1742006

HERZ 1742006 is a thermostat with contact temperature sensor designed for temperature control and limitation in underfloor heating systems. It operates as a proportional controller without external power supply and is suitable for HERZ valves designed for thermostatic operation.

The thermostat consists of a thermostatic head with liquid-filled hydrosensor, a 2-metre capillary tube, pipe contact sensor and fastening material for mounting the sensor to the pipe. The set-point range is 20–50 °C.

Technical information:

Manufacturer: HERZ

Product type: thermostat with contact sensor

Manufacturer code: 1742006 / 1 7420 06

Application: underfloor heating systems

Set-point range: 20–50 °C

Adjustment scale: 1–7

Approximate scale temperatures: 20 / 25 / 30 / 35 / 40 / 45 / 50 °C

Connection thread: M28 x 1.5

Sensor type: liquid-filled hydrosensor

Sensor design: pipe contact sensor

Capillary tube length: 2000 mm

Thermostat height: approx. 86 mm

Thermostat width: approx. 54 mm

Contact sensor length: approx. 160 mm

Contact sensor diameter: approx. Ø11 mm

Maximum differential pressure: 0.75 bar

Differential pressure for low-noise operation: 0.2 bar

Hysteresis: 0.3 K

Effect of heating medium temperature: 0.15 K / 10 K

Excess-temperature safety function: 10 K above maximum scale value

Maximum storage temperature: 50 °C

Colour: white

Power supply: not required

Compatibility: HERZ valves suitable for thermostatic operation