EUROSTER 11Z User Manual page 6

EUROSTER 11Z – USER MANUAL
is higher than tank temperature by at least the setting Difference (5.) + 3°C, T
T ≥ T
tank difference
The pump cannot be switched off (it will result in cooling down the tank), if heat source
temperature is not higher than tank temperature by at least the setting Difference
(5.) - 3 °C, T
Protecting the tank against overheating
If the tank is loaded by another, supplementary heat source and if tank temperature exceeds
85°C, then the central heating loading pump will be switched on until tank temperature falls
below 85°C.
Special attention should be paid when using hot water to avoid burning.
Feeder alarm temperature.
Once alarm temperature (90°C) is reached at heat source sensor, central heating and hot
water pumps will be switched off regardless of priorities. Screen backlight keep pulsating until
the temperature falls down.
Frost protection
Frost protection function gets activated when temperature of a given sensor falls to 4°C. If
boiler sensor (central heating) reaches such a temperature, central heating and hot water
pumps are activated and "AF" (Anti freeze) gets displayed on the screen. In case of tank
sensor (hot water) only hot water pump is being switched on. Protection is switched off, when
the temperature raises above 6°C.
11. ANTY-STOP
Pump anty-stop system switches the pumps on for 30 seconds immediately after each
controller switch on (also after restoring to factory default or change of backlight mode) and
then every 14 days. During its operation, "AS". keeps pulsating on the screen.
If during activity of the ANTY STOP system an emergency situation occurs (overheating or
damage to the sensor), operation of the ANTY STOP system will be interrupted.
12. TYPICAL DAMAGES AND REPAIR METHODS
Device is not working
Burnt fuse or memory software fault - send the device to service.
Screen and sensor symbol blinking, "Sh" or "OP" appears
Short sensor (Short) or open sensor (OPen) - check sensor cable for which a symbol is
pulsating or send the device together with the sensor for service.
Pump is not working
Device switched off - make sure that relevant symbols on the device are visible. If not, check
the settings. Restore to factory settings (chapter 8).
Connection error - check.
Knob works in an unforeseeable manner
Pulse generator damage - send device to service.
13. NORMS AND CERTIFICATES
The EUROSTER 11Z controller conforms with UE directives: EMC and LVD.
CE conformity declaration has been published and made available at:
+ 3
– T ≥ T
boiler tank difference
http://www.euroster.com.pl
- 3
6
–
boiler