25
• Having completed the installation and connections (condensate, flue,
electricity supply, gas supply and water circuits) of the boiler according
to the authorized gas company regulations and relevant standards, the
final checks and operations must be carried out by qualified person.
1)Filling the boiler and central heating circuit with water.
- Firstly, turn on all the radiators valve.
- Check inlet and outlet CH valve. The valves must be open.
- Open the manual air vent on the top of the boiler (Fig. 20)
- Open filling tap1) slowly to fill the system
- Turn off the manual air vent when water starts to squirt.
- Keep up filling until 1,5 – 2 bar water pressure.
- Turn off the filling tap.
- Turn on the air vents on the radiators to set air free until water squirts. Repeat this process for all
the radiators.
- Check the CH water pressure again and turn on the filling tap to increase water pressure to 1,5 – 2
bar level.
- Check radiator vents whether any air in the water pipes or not. Air must be purged out entirely for
efficient heating.
- Check any leakage in the radiator and the water pipes finally.
1)
The filling tap is not available in some models based on national and local regulations.
COMMISSIONING
Final Checks And Operations
CAUTION: Do not forget to turn off the filling tap. Water can leak and cause
damage.
Figure 20
Manual air vent
Summary of Contents for SCOT SC 24 HM
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