Water Flow And Refrigerating Circuit Pressure - Tebas BP-100HS-A Installation And Maintenance Manual

6- Water Flow and refrigerating circuit pressure

After putting into service, do the settings of pressure of the refrigerant circuit
for having an optimal operating of the heat pump, following:
Stage 1:
Before starting the Heat Pump, ambient
temperature around 20°C, refrigerant meter
shows pressure from 14 to 16kg/cm².
Stage 2:
Close completely the by pass valve and open
large inlet and outlet valves of the Heat
Pump; in these conditions the totality of the
water flow goes by the Heat Pump.
Put into service the Heat Pump in heating mode, wait for the indicated
pressure being stabilized; the correct setting of the pressure is from 21 to 35
kg/cm²;
In most of cases (pump of filtration given a flow until 20m³/h) you do not have
to open the by pass valve.
If the stabilized pressure is under 21kg/cm², the progressive opening of the by
pass valve will allow rising this pressure.
The adjustment of the by pass valve done, you have in principle no reason to
modify it during the season. See the paragraph "Environment problem" too.
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