SDC / DHC

Hydraulic Components

 

 

When the temperature limit is exceeded the heat generator is disabled and inhibited permanently. It can only be unlocked by a reset in the "Fault Messages" menu.

Flue gas temperature With the parameter set accordingly, the allowable temperature limit limit for the flue gas, according to specifications of the heat

generator manufacturer, has to be entered as the reference value for the follow-up functions described above.

Recommended setting:

Nominal flue gas temp. acc. to manufacturer data, plus 10 - 20 K

See also 5.4.6 "Heat generator" menu (HEAT GENER., Pg. 99

7.1.20Burner counter mode

The system features two operating hour and burner start-up counters (one each for the 1st and 2nd stages). The display is output on the information level of the counter.

The function of the operating hour counter can be set via a parameter.

OFF The operating hour counter is deactivated.

AUTO If an operating hour counter is connected to the corresponding inputs of the controller (operating hour counter inputs), this value is called upon for counting.

Otherwise, theoretical values are determined and included (switching times and switching frequency of the outputs).

If a signal was detected once at the operating hour counter input and the operating hour counter signal does not follow the boiler demand, a fault message occurs.

Feedback only Functions such as AUTO, however a theoretical value is not determined. Only signals from burners are processed.

Free counter The operating hour counter input can be used as a free counting input. A fault message does not arise if a signal is missing.

NOTE Since the counter values are only stored in the permanent data memory once per day, counter values of the current day could be lost in case of a power failure.

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Honeywell EN2H-0221GE51 R0808 service manual Recommended setting, Burner counter mode
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EN2H-0221GE51 R0808 specifications

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