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Benefit
Description
Setting
Note
Note
Resetting
Benefit
Description
Setting
Note
Resetting
Siemens Building Technologies
HVAC Products
Hours run counter
4.131 Operating hours heat pump stage 1 (K1)
• Overview of the number of operating hours of heat pump stage 1
• Criterion for service and maintenance work
The display shows the total number of operating hours of heat pump stage 1
(resolution = 1 hour).
The number of operating hours of heat pump stage 1 are generated based on the sig-
nal at output K1.
Display
0...999'999
The average number of operating hours of heat pump stage 1 is obtained by making
the following calculation :
The number of heat pump operating hours can also be acquired via input E1 (operating
lines 877 and 880).
To reset the hours run counter to 0, press the + / - buttons simultaneously for 3 sec-
onds.
4.132 Operating hours heat pump stage 2 (K2)
• Overview of the number of operating hours of heat pump stage 2
• Criterion for service and maintenance work
The display shows the total number of operating hours of heat pump stage 2
(resolution = 1 hour).
The number of operating hours of heat pump stage 2 are generated based on the sig-
nal at output K2.
Display
0...999'999
The average number of operating hours of heat pump stage 2 is obtained by making
the following calculation :
To reset the hours run counter to 0, press the + / - buttons simultaneously for 3 sec-
onds.
Basic Documentation RVP540 / RVP550
Description of the heating engineer settings
Unit
h
operating
hours
heat
number
of
starts
of
heat
pump
Unit
h
operating
hours
heat
number
of
starts
of
heat
pump
pump
stage
1
[h]
stage
1
(line
412)
pump
stage
2
[h]
stage
2
(line
413)
CE1P2488en
177/348
18.10.2002
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