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6. Close the caps and the flow valves.
7. Start the pumps from the electric board with manual control.
8. Slowly open the flow valves so as to eliminate the trapped air bubbles (if necessary, stop the pumps and repeat the
priming operation, to fill the spaces left empty by the air).
9. Eventually repeat the manual start-up operations a few times for a short time to allow the bleeding of the trapped air.
10. Completely open the flow valves and switch to automatic functioning of the pumps, by acting on the selector switches
on the electric board.
6.2 ELECTRIC BOARD CONTROLS
1. Voltage presence warning light
2. Level alarm warning light
3. Motors on warning lights
4. Motors on warning lights
5. Motors in protection warning lights
6. Motors in protection warning lights
7. Switches and automatic position warning lights
8. Switches and automatic position warning lights
9. Stop buttons
10. Stop buttons
11. Manual functioning buttons
12. Manual functioning buttons
ATTENTION
All information regarding the electric board, descriptions, regulations, procedures and indications are reported in the specific
use and maintenance booklet provided.
6.3 REGULATIONS AND CALIBRATIONS
The units are calibrated and tested before delivery. Should adjustments to regulations of the electric boards or pressure
switches be necessary, the same must be carried out by qualified staff. Pressure switches calibration procedure: remove
the lid to access the regulating nuts - act on calibration nut "P" to regulate the connection pressure also called minimum
pressure (a clockwise rotation increases the value, vice-versa, an anticlockwise rotation decreases the value) - act on nut
"DP" to regulate the pressure differential (a clockwise rotation increases the calibration differential and, consequently, fixed
the connection pressure, also the stop pressure value also called disconnection or maximum pressure).
6.4 MAINTENANCE
The pressurisation units do not require routine maintenance, whereas the eventual interventions of extraordinary
maintenance, that should be necessary in case of fault, must only be carried out by experienced staff.
7. OUT OF SERVICE
In case of placing a unit out of service, ensure to hydraulically and electrically insulate the same before proceeding to the
dismantling.
Do not disperse materials forming part of the system in the environment; keep to the local legal dispositions with regard to
disposal, recovery, re-use, recycling of the materials.
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