Settings
6 720 645 504 (2011/04) en
76
> Display light switch off delay
B Set the delay before the display backlighting is
automatically switched off after the last display
activity (navigating, setting, alarm display etc.).
> Time for reset of access level
B Set how much time it should take for the control unit
to return automatically from installer level to
customer level.
16.6.2 Heat pump capacity
B The total capacity is selected under Start-up. If an
incorrect value was selected, make changes in line
with the heat pump type plate.
16.6.3 Connected I/O boards
All boards and current version are displayed, if relevant.
16.6.4 Operating times and consumptions
The total operating time for the control unit, heat pump
x and additional heat (active connection). It can also
make short term measurements for compressor and
additional heat.
16.6.5 Temperatures
All connected/acknowledged sensors present values.
The set point value is also given for some. The
opportunity to correct the sensors is also given.
Attenuation function for room sensor is avaliable at each
circuit. Factory setting is 0,25 h. The function means that
the set point value is continuously adjusted against the
changed room temperature value. Temporary
fluctuations in the room temperature will then have
limited effect.
Open circuits/short circuits/faults in sensors are
indicated with a dash in the display and under
Temperatures. Alarms are triggered and stored in alarm
log and alarm history.
Deviation of T6 hot gas temperature
Details regarding the hot gas temperature at T6 are also
displayed if the actual value has deviated during the last
24 hours from the calculated ideal value. This enables
the status of the refrigerant circuit to be assessed
without special tools.
Deviations in excess of -10 °C can have the following
causes:
• Filter E2x.V101 obstructed
1)
• Compressor run time too short
1)
• Incorrect temperature indication from an internal
sensor
1)
• Expansion valve works incorrectly (too much open)
2)
Deviations in excess of +10 °C can have the following
causes:
• Incorrect temperature indication from an internal
sensor
1)
• Expansion valve works incorrectly (too much open)
2)
• Too little or too much refrigerant
2)
• Contaminants, magnetite and/or limescale deposits
in the condenser
2)
1)
Inspection and remedy possible by the installer.
2)
Visit by an authorised refrigeration engineer with
suitable tools for the inspection and remedy is required.
Factory setting 5min
Lowest value 1min
Highest value 240min
Tab. 137 Display light switch off delay
Factory setting 20min
Lowest value 1min
Highest value 240min
Tab. 138 Reset of access level
Factory setting Select
Alternative 22/33 kW
Tab. 139 Heat pump capacity 22-33 kW
T2 Outdoor, display T2 correction
Temperatures heat
pump x
T1 Start/stop limits com-
pressor
T6,T8,T9,T10,T11 display,
correction
T3 hot water start
T8 hot water stop
Circuit x T1 set point
T1 display, correction
T5, display, correction,
damping
Room temperature set point
value
Menu dial influence, display
(CANbus)
Hot water T3 display, correction
Extra hot water stop temper-
ature
Hot water peak stop temper-
ature
Tab. 140 Temperature display
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