Waterstage WGHA050DG, Technical Manual

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Control system
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Service / special operation functions
„ z
Maintenance
Maintenance functions can be used as a preventive
step for periodically monitoring the installation.
All maintenance functions can be individually
activated / deactivated.
The controller automatically generates
maintenance messages if the settings defined are
either exceeded or fail to be reached.
LINE FUNCTION
7070 HP interval
7071 HP time since maintenance
7073
Cur starts compressor 1/hrs run
HP interval
Defines the maintenance frequency (in months) for
the heat pump.
HP time since maintenance
Displays the time (in months) elapsed since the last
maintenance. If the value exceeds the "heat pump
interval" (line 7070), the symbol
will be displayed
and a maintenance message will appear in
the Info section:
17: Heat pump maintenance Interval (Priority 6)
This setting can be reset with the associated rights
of access.
Cur starts compressor 1/hrs run
The average number of compressor startups per
hour of operation, obtained over a period of 6
weeks.
If the value exceeds the "Comp1 max startups/hr
op" adjusted setting, the symbol will be displayed
and a maintenance message will appear in the Info
section:
8: Too many compressor 1 startups (Priority 9)
This setting can be reset with the associated rights
of access.
Emergency mode
If the heat pump is not operating properly, an
emergency operation can be maintained. The
emergency operation enables the installation to be run with the available
heaters (flow, DHW tank). In
this case the compressor will remain off.
LINE FUNCTION
7141 Emergency operation
7142 Emergency operation function type
Emergency operation
Emergency operation can be activated and
deactivated manually.
Off
•
Emergency operation is deactivated.
On
•
Emergency operation is activated.
Emergency operation function type
Manually
•
Emergency operation can be activated/deactivated
only through the Emergency operation setting on line
7141.
Automatic
•
As soon as a fault occurs on the heat pump,
emergency operation is automatically switched on. It
stops when the fault is removed and, if necessary,
cleared (reset). Emergency operation may however
be activated / deactivated manually via the
"Emergency operation" setting on line 7141.