Victorum Exhaust Air Heat Pump Installation Guide
75
Victorum Combi
Filling the Cold-Water Storage Cistern
Before beginning to fill the cold-water storage cistern check all the connections for water tightness
including any factory-made connections such as the ball cock and drain valve. The orientation
of the ball cock and float should be checked as misalignment will result in the valve not closing
correctly and water being expelled from the overflow connection.
Filling the Potable System
Before beginning to fill the hot water tank, ensure the cold-water cisterns gravity outlet connection
has been purged and cleared of any installation debris. Failure to do so could lead to debris
entering the inlet control group, causing damage to the valve and the possibility of the unvented
system underperforming.
The pre-charge pressure in the potable expansion vessel must be checked to verify it is 0.3 bar
below the inlet control group setting ex. 3 bar inlet = 2.7 vessel. The valve is of the Schrader car
tyre type. The adjusting of the pressure should be done before the expansion vessel is installed -
i.e the pipe connection must be open to atmosphere.
Check all the connections for water tightness including any factory-made connections such as the
immersion heater and the temperature and pressure relief valve.
Prior to filling, open the hot tap furthest away from the cylinder to expel air. Open the isolation
valve prior to the inlet control group and allow the unit to fill. Once the cylinder has been fully
commissioned it should be heated to its normal operating temperature.
Heating System
Before beginning to fill the heating system ensure all components are installed and respect any
recommended direction of flow. Check all the connections for water tightness including any factory-
made connections.
It is recommended to check the pre-charge pressure of the heating expansion vessel before filling
the system and to adjust it if necessary.
Commissioning
