Siemens RVS41.813 User Manual page 203

Heat pump operation
Alarm messages
Siemens Switzerland Ltd
HVAC Products
AUTO
Error
229: Low pressure
Reset ? Yes Ja
0 4 8 12 16 20 24
After pressing the OK button once, "Yes" appears blinking on the display. Pressing the
OK button a second time confirms the "Yes" and resets the error.
Automatic reset
Automatic acknowledgement takes place on completion of the minimum compressor off
time (operating line 2843). When this time has elapsed, the controller tries to reset the
error.
If indicated in table "Number", it can be selected how many times the error shall be
reset before the heat pump triggers lockout.
This indicates whether or not the heat pump can continue to operate should a fault
occur.
Yes
The heat pump continues to operate although an error message was delivered.
No
Error causes the heat pump to shut down.
No with brine
In the case of brine heat pumps, the error causes the heat pump to shut down; in the
case of water or air heat pumps, the heat pump will continue to operate.
No with water
In the case of water heat pumps, the error causes the heat pump to shut down; in the
case of brine or air heat pumps, the heat pump will continue to operate.
No with air
In the case of air heat pumps, the error causes the heat pump to shut down; in the case
of brine or water heat pumps, the heat pump will continue to operate.
Plant diagram-dependent
Heat pump shutdown depends on the plant diagram currently used.
The errors are assigned priorities. From priority 5 (that is, priorities 5 - 9), alarm
messages are delivered, which are used for remote monitoring (OCI). In addition, the
alarm relay is set.
The following error messages can occur:
Lo-
No.: Error text
cation
10: Outside sensor B9
26: Common flow sensor B10 6
30: Flow sensor 1 B1
31: Flow sensor cooling 1 B16 6
32: Flow sensor 2 B12 6
33: Flow sensor HP B21 6
35: Source inlet sensor B91 9
36: Hot-gas sensor 1 B81 6
37: Hot-gas sensor 2 B82 6
38: Flow sensor prim
B15 6
controller
User manual RVS61.843, RVS41.813
6 The settings in detail
acknowl
edgmen Function error repetition
Error
t
priority
Manuall 1. 1st status
Active
y message
6 No No ---
No No ---
6 No No ---
No No ---
No No ---
No No ---
No No ---
No No ---
No No ---
No No ---
Heat pump Responsibility
operation no.
Yes 1 (installer)
Yes 1 (installer)
Yes 1 (installer)
Yes 1 (installer)
Yes 1 (installer)
Yes 1 (installer)
No (param.) 1 (installer)
Yes 1 (installer)
Yes 1 (installer)
Yes 1 (installer)
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CE1U2355en_02
28. September 2009