Sigma Holzgas, Manual And Installation, Page: 21 / 32

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Picture. 3 UM-1 module connection diagram
6.2.8) 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
6.2.9) Specifications
Voltage: 230V ± 10%, 50Hz
Power consumption: <4VA
Temperature measurement range: 0–99°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 temperature adjusting range: 30-60°C ± 1°C
Total fan-out: total max 2A/230V
Dimensions (HxWxD): 80x170x100 mm
6.2.10) Notes
Display Parameter User
∏ 100 Fan max work power or max power when ∏ r 0-10
∏ r 1 automatic fan speed control and time of fan start
∏ n 5 Fan work time
∏ u 6 Fan pause time
P 40 Central heating pup launch temperature
Ph 2 Central heating pup launch hysteresis
Pc 2
Pause time of central heating pump with 30 sec. work
periods
u 50 Tap hot water desired temperature
uh 5 hot water heating hysteresis