Siemens QAA55.110 User Manual

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Siemens Switzerland Ltd
User manual RVS61.843 CE1U2355en_02
HVAC Products 6 The settings in detail 23. November 2007
6.21 Maintenance / special operation
Maintenance functions
Maintenance functions can be used as a preventive measure for periodic monitoring of
plant. All maintenance functions can be individually activatd and deactivated.
The controller delivers maintenance messages automatically if the settings made for
the maintenance functions are violated, either upward or downward.
Line no. Operating line
7070 HP interval
7071 HP time since maint
7072 Max starts compr1/hrs run
7073 Cur starts compr1/hrs run
7074 Max starts compr2/hrs run
7075 Curr starts comp2/hrs run
7076 Diff condens max/week
7077 Cur diff condens max/week
7078 Diff condens min/week
7079 Cur diff condens min/week
7080 Diff evap max/week
7081 Cur diff evap max/week
7082 Diff evap min/week
7083 Cur diff evap min/week
7090 DHW storage tank interval
7091 DHW stor tank since maint
7092 DHW charg temp HP min
7093 Curr DHW charg temp HP
Interval for heat pump maintenance
Setting of interval (in months) at which the heat pump requires service.
Display of period of time (in months) elapsed since last service visit.
If the value is above setting “HP interval“ (7070), symbol
appears on the display and
a maintenance message on the info level:
17: HP interval (priority 6)
This parameter can be reset, provided the respective access right is granted.
Maximum number of starts of compressor 1 per hour run
Setting the maximum permissible number of starts of compressor 1 per hour run.
Average number of starts of compressor 1 per hour run, reached over the last 6 weeks.
If the value lies above setting “Max starts compr1/hrs run“ (7072), symbol
appears
on the display and a maintenance message on the info level:
8: Too many starts compr 1 (priority 9)
This parameter can be reset, provided the respective access right is granted.
HP interval
HP time since maint
Reset
Max starts compr1/hrs run
Cur starts compr1/hrs run
Reset

Siemens QAA55.110 Specifications

General

Brand	Siemens
Model	QAA55.110
Category	Controller
Language	English