10
- [Ar 4] mode - output may control devices working together with blow-in fan.
5.8. Factory defaults.
Return to standard settings set by the producer by choosing [Prod] and pressing
OK button. After activating this function, the controller sets each parameter showed in
the table 2.
5.9. Testing outputs.
To make checking the controller work easier, it is possible to test output circuits
which control the fan and the pump, and the circuit which controls additional
equipment. This function is available in service mode, only if the control process is off,
i.e. the controller was in STOP mode before switching to service mode. By choosing
[outP] on the display and pressing OK button you can turn on the central heating
pump for a while, by choosing [outΠ] and pressing OK you can turn on the pressure
fan and by choosing [outr] and pressing OK you can turn the additional equipment on
(if the additional module is connected). Choosing [outu] allows testing the hot water
pump output.
5.10. Exiting service mode.
By choosing [End ] option on the display and pressing OK button you can quit
parameter setting mode. The controller also quits service mode, when no buttons are
pressed for 1 minute.
6. Additional functions.
To improve comfort in heated rooms, the controller has been equipped with an input
allowing to connect any kind of room thermostat with contact output. When
temperature in the room is below desired temperature, the central heating pump is
turned on and the room thermostat indicator is lit. It means that the boiler should keep
temperature set by the room thermostat knob. After reaching desired temperature in
the room, the room thermostat indicator turns off, the central heating pump is turned
off and the boiler switches to mode in which it keeps burning at minimum temperature.
CAUTION. In case of not having room thermostat in the system, the room thermostat
input contacts must be short-circuited.
7. Controller failures.
The controller is constantly testing if its internal circuits and temperature sensor are
working correctly. After detection of fault, it stops the fan, turns on the central heating
pump and shows proper error message on the display. In case of failure please turn
off the controller, plug the central heating pump to the power source, ensure
appropriate fuel firing in the boiler and contact the service.
When [E 1] error appears on the display, it means fault in the boiler sensor circuit
or temperature below -9°C. [E 2] is displayed if boiler overheats. [E 3] error means
fault and overheating at the same time. Appearing of [E 1] error on the display without
ability to cancel it by pressing STOP button, in spite of temperature below 90°C, may
mean permanent damage of boiler temperature sensor (e.g. if the boiler overheated
above 150°C).
To Next Page
Loading...