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4. FLUSHING TO THE SYSTEM AND MONITORING WATER PRESSURE
Water pressure of the heating system is digitally displayed on LCD screen.
To display the pressure, turn P1 Knob to TEST position, and move P2 to
SUMMER position on the control panel (page 7). Water pressure will be
displayed as bar (unit of pressure).Air must be purged from radiators in the
initial flushing process. Please follow these steps to start initial flushing:
1- Open all purgers in central boiler installation and radiators.
Attention: Rotate directions of water evacuation holes and place a pot under
each purger in order to prevent environment from water damages.
2- Open the filling valve (page 12) which is placed underneath the boiler
and start filling water into the system.
3- Close all the purgers when blister-free water starts to come from purgers.
4- Continue to flush until the system pressure comes up to 1,5 Bar, then turn
off the filling valve.
Attention:
It is recommended to make initial flushing with at least 2
people.While one person is controlling the radiators and closing the purgers,
the other one can control the pressure by standing over the boiler and close
the filling valve if needed.
In case of water shortage in closed circuit system after running of the boiler, it
is necessary to add water to system by opening filling valve. Radiators must
be checked if there is air in them or not.
5. START-UP
Boiler must be put into service by only Tecnical Services in order to run the
boiler efficient and safe, also for the validation of guarantee conditions.
5.1 PRE- CONTROLS BEFORE START-UP
1.The gas type and its pressure must be controlled.
2.Automatic purger fuse on the circulation pump must be loosened.
3.The pressure inside the system must be controlled from the manometer.
The pressure must be around 1,5 Bar.
4.In order to dispose the air from all of the system , take out the screw in front
of the pump. By this way, whether the pump mill is congested or not can be
controlled and any air that is congested can be discharged.
5.Dispose the air from the purgers on radiators.
6.Discharge the air in the hot water system by turning on hot water tap.
7.Check the installation of hermetic flue kit.
8.Check whether all valves in the system are turned on.
9.Check that the accuracy of condensate drain connection.