GeoSmart NETZERO BW B B, Technical & Service Manual, Page: 57 / 64

Installer manual NETZERO
GEOSMART ENERGY 57
EN
3.9. Technical data table
NOTE

In the technical data tables you will find a series of numbers in superscript format, the meaning of
which is explained below:
1. Replacing or combining the geothermal collector with one or more NETZERO AU aerothermal
units. Refer to the NETZERO AU aerothermal units manual for more detailed information.
2. In compliance with EN 14511. this includes the consumption of the circulation pumps and the
compressor driver. Brine thermal gap (
Δ T = 3 °C) and production thermal gap ( Δ T = 5 °C).
3. Pending certification
4. Considering a heat ramp of 20ºC to 50ºC in absence of consumption.
5. Considering support provided by the emergency electrical resistor or the HTR system. Maximum
DHW temperature with the HTR system can be limited by the compressor discharge
temperature.
6. In compliance with EN 12102, this includes the acoustic insulation kit of the compressor.
7. Start-up intensity depends on the operating conditions of the hydraulic circuits.
8. The admissible voltage range for proper operation of the heat pump is ±10%.
9. Maximum consumption can vary significantly according to working conditions, or if the
compressor's range of operation is restricted. Refer to the technical service manual for more
detailed information.
10. The installation must be carried out in such a way as to guarantee the nominal flow rates, which
will be calculated for the maximum powers with a temperature differential of 5°C. On the other
hand, to ensure correct compressor start-up, the installation must guarantee a flow rate greater
than that resulting from the formula:
Q ≥ 1.2 x P
ref
, where:
i. Q= flow in litres per minute.
ii. P
ref
= cooling power at 25% of compressor, see operating curve graphs.
11. Only for NETZERO CW