GeoSmart NETZERO BW Manuel D'installation page 13

A)
B)
DO17
C)
DO16
DO6
D)
DO16
DO6
Integrated components
The following source circuit components are included within the heat pump.
▪
Variable speed and high efficiency outlet pump (energy class A).
▪
Expansion vessel with a capacity of 8 litres, with pre-adjusted pressure of 0,75 bar (pressure gauge) (75 kPa).
▪
Safety valve loaded at 3 bar (pressure gauge) (300 kPa).
▪
Drain valve.
Installation instructions
Follow the instructions below to wire the source circuit.
▪
Install the necessary components to carry out the filling/discharge of the return pipe.
▪
Install a particulate filter in the return pipe with a mesh size no greater than 1 mm. It is recommended to install shut off valves
immediately before and after the filter to make it easier to clean or replace.
▪
Check that the volume of the expansion vessel integrated in the heat pump is capable of absorbing any overpressures from
the circuit. If this volume is not enough, install a supplementary external expansion vessel.
▪
If necessary, adjust the pressure of the expansion vessel integrated in the heat pump to guarantee that the circuit remains
pressurised at all points.
▪
Source circuit pressure should be between 0,7 and 2 bar (pressure gauge) (70 and 200 kPa).
GEOSMART ENERGY
4
3
AO6
M
4
3
AO3
4
3
AO3
T AI12
4
3
DO17 DO16
Figure 3.1. Source circuit connection options.
4 4
3 3
13
Installer manual NETZERO