12. Cylinder Air Purge
Every week check if there is non-condensable (air) build up in the refrigerant cylinder.
First, measure the ambient temperature. Then read the cylinder pressure on rear gauge (13) and
compare it with the temperature pressure chart, affixed to the machine. If the cylinder pressure is
higher than the pressure/temperature chart, close vapour valve on the cylinder, disconnect the
hose and purge the non-condensable gases (air) from the cylinder through cylinder vapour valve
and bring back to the chart values.
Example: Ambient temp. 20
o
C, the cylinder pressure should be 4.7 bar.
.