Initial Start And Commissioning; Control Unit And Operation; Setting Auxiliary Heaters And - OEG 650 001 330 Installation And Operating Instruction

60
3.7.2
Initial start and
commissioning
4

Control unit and operation

4.1
Setting of booster heaters
and second heat source
GB
After the system inspection has been completed, the heat pump can be
put into operation.
• Switch on the power supply.
• Select the desired language on the control unit (see 4.4.2.2).
• Enter date and time (see 4.4.2.3).
• Choose the desired operating mode (see 4.4.2.4).
• Switch on the heat pump (see 4.4.2).
• The circulation pump starts to run immediately. After 30 seconds the fan motor starts.
• After another 5 seconds the compressor begins to work.
• Initially, air may escape from the hot water and it may become necessary to vent the
system. If afterwards heat pump, circulation pump or heating element still make
bubbling sounds, the entire system will require to be vented.
• As soon as the system is stable (with correct pressure and all air evacuated from the
system), the automatic heating control system can be set as required.
• Check the temperature difference between heating water flow and return.
• It is recommended to adjust the parameters to the
heat pump system individually.
• Completing the commissioning protocol. See download area
of OEG heat pumps in the OEG online shop.
The wired control unit
The control unit is operated by touching the screen surface. The main menu shows the
most important status information and temperature settings in the display.
The heat pump is switched on and off via control unit, in the submenus detailed status
information can be indicated, and all control parameters can be set there. Parameter
settings are only allowed to be modified by qualified technicians.
Control of E1 electrical booster heater
The E1 electrical booster heater is activated in DHW mode.
Control of E1 electrical booster heater:
Start condition 1:
• The actual temperature of the DHW storage tank ≥ [P35]
• DHW target temperature [P04] DHW storage tank temperature ≥ [P07]
The E1 electrical booster heater will be switched on if the conditions above are fulfilled
simultaneously.
Stop condition 1:
• DHW storage tank temperature ≥ DHW target temperature [P04]
• DHW storage tank temperature < [P35] -2 °C
If one of the conditions above is fulfilled, the E1 electrical booster heater will be switched off.
Remark:
In DHW mode, the E1 electrical booster heater will be switched on at the beginning of
the defrosting process and switched off at the end of the process. If there is a problem
with the heat pump in DHW mode (except failure of the DHW sensor), the E1 electrical
booster heater will be switched on and will work normally according to the set DHW
temperature.
Control of E2 electrical booster heater
The E2 electrical booster heater has two functions defined by parameter [P81]:
[P81] = 0, A/C heating, [P81] = 1, the second heat source A/C electrical heating function
Multi-functional DC inverter air/water heat pump