Space heating

• “The heating requirement for the month … does not conform to the yearly profile and the climate data.”
  → The heating output must match the outdoor temperatures. When necessary, correct the settings on the settings page.

Heat pump

• “x% of the generated energy for DHW was met by the heating element.”
  → Select a heat pump with higher power.

• “x% of the generated energy for space heating was met by the heating element.”
  → Select a heat pump with higher power.

• “The power of the heat pump plus heating element (x kW) is not sufficient to meet the heating load (y kW).”
  → Select a heat pump with higher power.

Ground source

• “Drilling depth must be less than or equal to the maximum drilling depth.”
  → Click the sizing button.

• “The total length of the probe, X m, is too long or too short by Y%.”
  → Modify the parameters – within possible ranges – and then click on the sizing button until no more warning messages are shown.

• “The ground has cooled by x% after one year. Please check the design.”\ → Reduce extraction power and/or increase heating element power.

Systems HP1 and HP2

• “Please select a system with a heating buffer tank.”
  → Please note: if you select another system, all dependent values will be reset.

• “The range of the radiator heating is too large to be supplied by the heat pump.”
  → Select a different heat pump or, if possible, revert to low-temperature heating.

System

• “x% of the energy required for domestic hot water ’ + #13#10 + ’ could not be supplied!”
  → Increase the power of the heat pump (select a different heat pump) or reduce DHW requirement (less meaningful solution, as cold showers are not the intention).

• “x% of the space heating requirement could not be supplied!”
  → Increase the power of the heat pump (select a different heat pump) or reduce the space heating requirement (less meaningful solution, as freezing is not the intention).

• “For x weeks a year, y kWh of the space heating requirement could not be supplied!”
  → If the annual energy balance shows no shortfall, there may be shortfalls on a weekly basis. Depending on the level of the shortfall, the power of the heat pump must be increased (select another heat pump) or the space heating requirement reduced.

• “For x weeks a year, y kWh of the domestic hot water requirement could not be supplied!”
  → If the annual energy balance shows no shortfall, there may be shortfalls on a weekly basis. Depending on the level of the shortfall, the power of the heat pump must be increased (select another heat pump) or the DHW requirement reduced.