KEY RK-2001W, Руководство по эксплуатации

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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).
In case of programming the sensor and central heating pump in the service mode
the controller tests the hot water sensor circuit. Appearing of fault [E 8] means
damage or lack of hot water sensor.
8 Controller removal.
In case the removal is necessary proceed as follows:
- turn the master switch off
- disconnect the power of the boiler
- remove the controller from the slot in the boiler
- disconnect all connectors with leads from the controller
9 Specifications.
Voltage: 230V ± 10%, 50Hz
Power consumption: <4VA
Temperature measurement range: -9–109°C ± 1°C
Boiler temperature adjustment range: 30–90°C ± 1°C
Programmed boiler overheating protection: 90–99°C ± 1°C
Hardware boiler overheating protection (STB): >95°C ± 1°C
Central heating pump launch temperature: 30–70°C ± 1°C
Hot water pump launch temperature: 30–60°C ± 1°C
Total fan-out: total max 2A/230V
Dimensions (HxWxD) 80x170x100