Siemens Albatros2 AVS37 User Manual Page 196

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Siemens Switzerland Basic units RVS61.843 and RVS41.813 CE1U2355en_02
HVAC Products Contents 3. Juli 2008
History
Line no. Operating line
8050 – 8069 History and state code state history 1 - 10
The last 10 status messages are saved or displayed together with the associated status
codes.
History 1 contains the latest message, history 10 the oldest.
The status displays currently valid for the enduser can be queried directly via the room
unit’s info level.
Using the ACS 700 PC tool, the relevant actual values, setpoints and relay outputs can
be displayed for each status message.
6.25 Diagnostics cascade
For making diagnostics, priority and state of the sources, various temperature values,
and the current order of sources and stages can be displayed.
Priority/state
Line no. Operating line
8100
8102
...
8130
Priority/state source 1
priority/state source 16
8101
8103
...
8131
State source 1
state source 16
8138 Cascade flow temp
8139 Cascade flow temp setp
8140 Cascade return temp
8141 Cascade return temp setp
8150 Source seq ch’over current
6.26 Diagnostics heat source
For making diagnostics, various setpoints, actual values, relay switching states and
meter readings can be displayed.
Brine-to-water heat pump
Line no. Operating line
8400 Compressor 1
8401 Compressor 2
8402 El imm heater 1 flow
8403 El imm heater 2 flow
8404 Source pump
8405 Speed of source pump
8406 Condenser pump
These operating lines are used to check the operating states of the components
controlled via the heat pump relays. The display of 0 indicates that the relevant
component is currently off. The display of 1 indicates that the relevant compoennt is
currently in operation.
This rule applies to relays defined as NO contacts. When defined as NC contacts, the
action is reversed.
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