TECH ST-2640, User Manual, Page: 14 / 20

TECH
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VII.f) Pump
The EU-2640 regulator controls the operation of the pump – it activates the pump after the delay
time when any zone is insufficiently heated. When all zones are reheated (the set temperature is
reached), the controller deactivates the pump.
The function Delay allows the user to adjust the delay time for the pump's deactivation after the
temperature drops in any zone below the set value. The delay in pump activation is used for the
valve's actuator to open.
VII.g) Language selection
This function allows the user to change the controller's language version.
VII.h) Display contrast
This function allows the user to adjust the display's contrast to their individual needs.
VII.i) Fitter's menu
The Fitter's Menu is intended to be operated by people with appropriate qualifications and is used
primarily to adjust the controller's additional functions.
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External sensor correction
The external sensor is calibrated during the installation or after a longer period of the regulator's
operation if the displayed external temperature differs from the actual temperature. Adjustment
range: -10 to +10°C with accuracy to 0.1°C.
•
Internet module
The EU-2640 regulator may operate with an Internet module which makes it possible to monitor
and change certain parameters via the Internet. Control of this type is possible only after
connecting an additional ST-5072 control module to the controller.
The Internet module may be connected with the EU-2640 controller via an RS cable. After the
module is connected, the user selects the option Registration. The code generated by the
controller is entered on the website – a detailed description may be found in the Internet module's
user's manual.
The Internet module is a device allowing the user to remotely control the regulator's operation
via the Internet. The user controls the condition of all valves on their personal computer at home.
After the user activates the Internet module and selects the DHCP option, the controller will
automatically download the following parameters from the local network: IP address, IP mask,
Gateway address and DNS address. In the case of any problems with downloading the network
parameters, it is possible to adjust these parameters manually. The method of obtaining the local
network parameters is described in the manual for the Internet module.
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Timer
This function allows the user to adjust the current time and day of the week.
VII.j) Information on software
After this option is activated, the display will show the boiler manufacturer's logo along with the
controller's software version.