4.7.3 Pressurizing the unit
Before installing the UV-C lamps, make sure that the unit is not leaking.
Figure 4-11: Pressurizing the unit
No. Description
1 Manual drain water return valve, adjust to capacity
2 Motorized drain water return valve
3 Air bleed valve
4 Manual drain water disinfected valve. This valve remains closed until the
unit has been commissioned (put into operation).
5 Motorized drain water disinfected valve
6 Manual suction pipe
To pressurize the unit, complete the following steps:
1. Open the inlet pipe (supply pipe) at the inlet and outlet points (water tanks).
2. Switch the system pump off manually.
3. Switch the unit off using the main switch.
4. Open manual valves 1 (drain water return) and 6 (suction pipe) in the unit's inlet
and outlet pipes.
5. Switch the system pump to manual mode in order to pump the water through
the system.
6. Switch the system pump to automatic mode once the unit is pressurized (≥3.5
VitaLite
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