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Siemens Building Technologies
HVAC Products
The room temperature does not agree with the required temperature level:
• Does the room temperature setpoint agree with the required temperature level?
(Knob on the controller or on the room unit)
• Is the required operating mode indicated?
• Are weekday, time of day and the displayed heating program correct?
(Operating lines 1...11)
• Has the heating curve slope been correctly set? (Operating line 30)
• Check wiring of the outside sensor (operating line 211)
• Has the "Setting knob for the nominal room temperature setpoint" with the "Parallel
displacement of the heating curve" (operating line 720) been calibrated based on
the effective room temperature?
• Has the holiday function been activated? (Operating lines 40 - 42)
• Make "Functional test heating circuit" (operating line 745) to see if the relevant re-
lays will be energized.
Error message; display shows "ER"
Select operating line 50. There, you can see the error code and the address of the af-
fected device. Refer to section "Indication of errors" for a list of the possible error codes
and their descriptions.
Basic Documentation RVP540 / RVP550
Handling
CE1P2488en
18.10.2002
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