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Siemens Building Technologies
Basic Documentation RVP540 / RVP550
CE1P2488en
HVAC Products
Description of the heating engineer settings
18.10.2002
Input E1
4.259 Display of hours run, input E1
•
Knowledge of the number of operating hours
The number of operating hours during which AC 230 V is present at terminal E1 will
automatically be displayed on this operating line.
Display
Unit
0...999‘999
h
To ensure the number of operating hours will be counted, setting 1 (“Hours run and
start counter”) must be selected on operating line 880, and the heat source whose
hours run shall be counted must deliver an AC 230 V signal.
To reset the hours run counter to 0, press the + / - buttons simultaneously for 3 sec-
onds.
4.260 Display of number of starts, input E1
•
Knowledge of the number of starts
The number of starts the controller made since it was reset will automatically be dis-
played on this operating line.
Display
Unit
0...999‘999
–
So that the number of starts will be counted, setting 1 or 6 (“Hours run and start coun-
ter”) must be selected on operating line 880, and the heat source whose number of
starts shall be counted must deliver an AC 230 V signal.
To reset the hours run counter to 0, press the + / - buttons simultaneously for 3 sec-
onds.
4.261 Function selection input E1
•
Hours run counter
•
Start
counter
•
Heat
generation
lock
•
Error / alarm message
•
Release of return temperature control of wood-fired boiler
•
Forced charging of buffer storage tank with heat pump
Terminal E1 is a multifunctional input (AC 230 V).
The function is dependent on the setting made on this operating line.
Setting range
Unit
Factory setting
1...8 –
1
Benefit
Description
Setting
Note
Resetting
Benefit
Description
Setting
Note
Resetting
Benefit
Description
Setting
