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Running hours of domestic water
8840
pump
The start-up counter of domestic
8841
water pump
* Not in use on Qi heat pump
** Supply water temperature 1 is not in use. The
temperature of the heating circuit can be seen on control
row 8412 when system is in heating mode. When charging
the domestic hot water the supply water temperature is not
displayed.
12.8 Vocabulary
Condenser pump = Ground source heat pump's in-built
heat supply pump (charging pump)
Condenser = Heat exchanger, which transfers the heat
from refrigerant to property's heating system
Evaporator = Heat exchanger, which transfers heat from
the collector to refrigerant
Source = Collector (energy well, lake loop, loop dug in
the soil)
The Port. 1 minimum idle time = Controller is defined
with the minimum compressor idle time, when the
compressor is off before the next start-up, if the heat call
is active.
The Port. 1 running time = The controller is defined with
the minimum compressor running time, during which the
compressor runs, even though the set point is reached.
The composite outside temperature = The average
between the damped outdoor temperature and the current
outdoor temperature.
Damped outdoor temperature = The average temperature
defined on the control row Time constant building.
The supply water electric heater = Electric resistor
12.9 Heat pump status information
The heat pump operating status can be seen from the
operating terminal. On the basic view of the operating
terminal displays the Heat pump status. If the heat pump
is connected to the room sensor, the operating terminal
displays the current indoor temperature. All the status
information displaying on the display are not alerts. You
can browse heat pump status information and historical
data at the Expert level in Mode or Info –menu.
12.10 Special situations
In exceptional situation, the display of the basic unit
shows one of the following symbols.
Failure notifications
If this symbol appears on the display, the device is
suffering from a failure. Press the info button to view
additional information.
42
Maintenance or deviating behaviour
h
If this symbol appears on the display, the device has issued
a maintenance notification or is operating in an abnormal
pc
way. Press the info button to view additional information.
12.11 Heat pump status
The heat pump status will tell the current operation status
of the heat pump.
HEAT PUMP STATUS:
OFF: The heat pump is turned on, but the call for heating
is not active
STOP: The heat pump is turned on, but the call for heating
is not active. A newer language version.
HEATING: The call for heating is active and the
compressor is on. Compressor is heating the property or
hot water.
LIMITATION OF ACTIVE TIME: Call for heating is on,
but the compressor minimum idle time prevents the
compressor from starting. The compressor starts after the
minimum idle time has expired.
EMERGENCY USE: The heat pump has gone to
emergency use operating mode due to malfunction or the
heat pump has been set to emergency use operating mode.
The heat pump heats the property with the electric heaters.
The operating terminal displays alarm clock symbol.
OFF THE MAXIMUM LIMIT: Call for heating is active,
but the compressor charging is interrupted as the supply
water has reached the maximum set point limit. The
charging process starts again after the minimum idle time.
COMPRESSOR LOCKED: The compressor is locked due
to too high or too low temperature of the collector or
charging circuit. The compressor will return to normal
mode once the temperatures return to the correct
temperature range.
PASSIVE COOLING USE: The heat pump is switched to
cooling mode. Source pump is running. The compressor
is not used for passive cooling.
12.12 Heating circuit status information
Heating circuit status indicates the current status of the
heating circuit operation.
COMFORT HEATING: The heating circuit operates
according to Comfort set point.
REDUCED HEATING: The heating circuit operates
according to reduced set point.
PROTECTIVE USE: The heating circuit operates
according to Protective set point.
HEATING LIMITED USE: The heating circuit is limited
during hot water charging. Heating circuit returns to the
set heating operation mode after the domestic hot water
charging is complete.
v3-8 23052017
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Troubleshooting
