Siemens RVS41.813 - Page 203

Ja
229: Low pressure
0
4812162024
AUTO
Error
Reset ? Yes
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.
Heat pump operation
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.
A
larm messages
The follo
wing error messages can occur:
acknowl
edgmen
t
Function error repetition
No.: Error text
Lo-
cation
Error
priority
Manuall
y
A
ctive
1. 1st status
message
Heat pump
operation
Responsibility
no.
10: Outside sensor B9 6 No No --- Yes 1 (installer)
26: Common flow sensor B10 6 No No --- Yes 1 (installer)
30: Flow sensor 1 B1 6 No No --- Yes 1 (installer)
31: Flow sensor cooling 1 B16 6 No No --- Yes 1 (installer)
32: Flow sensor 2 B12 6 No No --- Yes 1 (installer)
33: Flow sensor HP B21 6 No No --- Yes 1 (installer)
35: Source inlet sensor B91 9 No No --- No (param.) 1 (installer)
36: Hot-gas sensor 1 B81 6 No No --- Yes 1 (installer)
37: Hot-gas sensor 2 B82 6 No No --- Yes 1 (installer)
38: Flow sensor prim
controller
B15 6 No No --- Yes 1 (installer)
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Siemens Switzerland Ltd User manual RVS61.843, RVS41.813 CE1U2355en_02
HVAC Products 6 The settings in detail 28. September 2009