HERZ laying system
HERZ laying system
HERZ laying system
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
<strong>HERZ</strong> Control<br />
<strong>HERZ</strong> Thermal actuators<br />
1 7710 51 <strong>HERZ</strong> Thermal actuator with<br />
relieve contact<br />
Closed without current, can be switched<br />
over to open without current,<br />
operating voltage 24 V,<br />
thread connection M 28 x 0.5.<br />
The relieve contact signals the <strong>system</strong><br />
status or activates a pump.<br />
1 7710 00 <strong>HERZ</strong> Thermal actuator<br />
Closed without current, can be switched<br />
over to open without current,<br />
Operating voltage 230 V,<br />
thread connection M 28 x 0.5<br />
1 7710 01 <strong>HERZ</strong> Thermal actuator<br />
Closed without current, can be switched<br />
over to open without current,<br />
operating voltage 24 V,<br />
thread connection M 28 x 0.5<br />
1 7710 80 <strong>HERZ</strong> Thermal actuator<br />
Closed without current, can be switched<br />
over to open without current,<br />
operating voltage 230 V,<br />
thread connection M 30 x 0.5<br />
1 7710 81 <strong>HERZ</strong> Thermal actuator<br />
Closed without current, can be switched<br />
over to open without current,<br />
operating voltage 24 V,<br />
thread connection M 30 x 0.5<br />
1 7711 18 <strong>HERZ</strong> Thermal actuator for<br />
continuous regulating<br />
Thermal electric continuous drive, 3 lead<br />
connection cable,<br />
operating voltage 24 V =,<br />
control voltage 0-10 V =,<br />
thread connection M 30 x 0.5<br />
1 7710 50 <strong>HERZ</strong> Thermal actuator with<br />
relieve contact<br />
Closed without current, can be switched<br />
over to open without current,<br />
operating voltage 230 V,<br />
thread connection M 28 x 0.5.<br />
The relieve contact signals the <strong>system</strong><br />
status or activates a pump.<br />
1 7710 55 Relieve contact<br />
For later installation with thermal actuator<br />
Characteristic<br />
The thermal actuator is activated by an<br />
external electric contact e.g. from a room<br />
thermostat and opens or shuts the valve.<br />
The actuating movement is achieved with an<br />
electrically heated expansion element.<br />
When the heating current is switched off, the<br />
actuator shuts or opens the valve.<br />
The <strong>HERZ</strong> thermal actuator is maintenance<br />
free and works silently.<br />
1 7990 00 Herz DDC actuator drive<br />
Thermal electric continuous drive, 3 lead<br />
Connection cable,<br />
operating voltage 24 V,<br />
Control voltage 0-10V DC<br />
Electric resistance100 kΩ<br />
For use with <strong>HERZ</strong> RTC-2 room temperature<br />
controller<br />
1 7790 00 <strong>HERZ</strong> DDC actuator drive<br />
Thermo-electronic continuous drive,<br />
3-conductor<br />
Connection cable, operating voltage 24 V,<br />
driving voltage 0-10 V DC<br />
electric resistance10 kΩ<br />
For use with <strong>HERZ</strong> RTC-2 room temperature<br />
controller<br />
Functioning principle<br />
The actuator drive contains an electrically<br />
heated expansion element. The lift is<br />
directly transmitted to the valve.<br />
While the actuator drive is under voltage<br />
(24 V) the expansion element is heated to<br />
operating temperature within 2 minutes and<br />
can then be operated.<br />
By means of an external electric signal of<br />
0-10 V from a control device, the actuator<br />
drive is moved to the appropriate position.<br />
For a movement of 1 mm lift the actuator<br />
drive takes approximately 30 seconds.<br />
The closing operation is done in<br />
synchronisation with the opening. The<br />
expansion element cools down and the<br />
valve is closed using elastic force.<br />
The actuator drive is maintenance-free and<br />
works silently.<br />
www.herz-armaturen.com 35
Change language