Pump Anti-Stop; Anti-Freeze Temperature; Pid Supervision; Boiler Hysteresis - Tech Controllers EU-801 PID User Manual

After this function is activated (it is possible only in Water tank priority mode), the water tank is heated until the pre-set
temperature of 70°C is reached (default setting). The temperature is maintained for the whole disinfection time (default setting:
10 minutes). Next, the standard operation mode is restored.
Disinfection temperature needs to be reached within 60 minutes from its activation (default setting) Otherwise, the function will
be automatically deactivated.
6.15 P -
UMP ANTI STOP
When this function is active, the pump is activated at a user-defined frequency (every 1-20 days), for a pre-defined time
(minimum: 30 seconds; maximum: 180 seconds). It prevents stagnant water in the heating system outside the heating season.
6.16 A -
NTI FREEZE TEMPERATURE
This function is used to configure anti-freeze option which serves as protection of the heating system against freezing. When the
CH boiler sensor temperature or water tank sensor temperature drops below the pre-set temperature threshold, the pump is
enabled permanently. It will be disabled when the circuit temperature rises.
6.17 PID **
SUPERVISION
This mode will be activated automatically if the temperature exceeds the pre-set value by more than 5°C in operation mode. In
such a case, the controller disables PID control and uses manual settings (according to the parameters defined in the fitter's
menu) in order to reduce the temperature of the circulating water. The screen displays notification: PID: SUPERVISION.
6.18 CH

BOILER HYSTERESIS

When PID function is disabled, CH boiler hysteresis option appears in the fitter's menu.
This option is used to set the hysteresis of the pre-set CH temperature. It is the difference between the temperature of entering
the sustain mode and the temperature of restoring operation mode. (e.g. when the pre-set temperature is 60ºC, the hysteresis
is 3ºC, entering sustain mode takes place at the temperature of 60ºC whereas returning to the operation mode takes place
when the temperature drops to 57 ºC.
6.19 S
CREEN SETTINGS
This option enables the user to configure such screen parameters as screen brightness, screen blanking and screen blanking
time.
6.20 D
ISPLAY CONTRAST
This function enables the user to adjust the display contrast.
6.21 F
ACTORY SETTINGS
The controller is pre-configured for operation. However, the settings should be customized to user's needs. Return to factory
settings is possible at any time. When the factory settings option is activated, all customized settings of the CH boiler (saved in
user's menu) are lost and replaced with factory settings. Then, the parameters may be customized anew.
*
28