Displays; Normal Operating Statuses - Dimplex FD 9405 / L20 Operating Instructions Manual

L20

9 Displays

The current operating status of the heat pump system can be
read from the LCD.

9.1 Normal operating statuses

The display shows both normal operating statuses, and those
that are required by utility companies or related to the safety
functions of the heat pump. Only information about the relevant
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system configuration and heat pump type are shown on the
display.
There is no heat request.
The heat pump is in heating mode.
The heat pump is in swimming pool mode.
The heat pump is in domestic hot water preparation mode.
The heat pump is in cooling water preparation mode.
The heat pump is in flowcontrol mode. This process lasts a maximum of 4 minutes.
The heat pump defrosts the evaporator. The process lasts a maximum of 8 minutes. For
hot gas defrosting, the process lasts a maximum of 20 minutes.
The heat pump is blocked. The following are possible causes for the block:
The heat pump was switched off during defrosting due to pressure fluctuations.
Switch-off due to defrost control.
A system control can be activated in the "special functions" menu. This is either removed
automatically after 24 hours or it can be deactivated in the special functions menu.
The heat pump starts after the set pump forerun has expired.
After the minimum pause time has elapsed, the heat pump starts in order to meet any
requests that may be pending. The minimum pause time protects the heat pump and can
last for up to 5 minutes.
After the switch-on delay has elapsed, the heat pump will start in order to meet any
requests that may be pending. The switch-on delay is required by utility companies after
the voltage is restored or after a utility block. It can last for up to 200 seconds.
After the switch cycle block has elapsed, the heat pump will start in order to meet any
requests that may be pending. The switch cycle block is required by utility companies and
can last up to 20 minutes.
Domestic hot water reheating via the flange heater or pipe heater is active.
When the "Bivalent-renewable" operating mode is selected, the temperature in the
renewable cylinder is high enough for all pending requests to be processed by the
cylinder.
A utility block is in place.
Heat pump switch-off due to soft starter
The heat pump has been switched off because there is no flow in the primary or
secondary circuit. The flow rate switch must be activated in the "Settings - Heat pump"
menu. The message is automatically reset after 4 minutes.
The external temperature is below the heat pump's permissible temperature limit.
The heat pump's permissible high pressure values have been exceeded.
The heat pump's permissible low pressure values have been undershot.
The heat source temperature is below the heat pump's operating limit.
The system temperatures are too low for the heat pump to be operated.
The heat pump has been blocked by an external blocking signal at input ID4. The
functionality can be configured in the menu.
The heat pump is switched off because the 2nd heat generator operating mode has been
selected. Heat generation is provided by the 2nd heat generator only.
A fault has occurred in the heat pump or in the system. The cause is shown in the plain
text display.
452114.66.71 FD 9405
Wärmepumpenmanager
Current status message
EN-17