Maintenance And Service - Immergas MAGIS M4-30 Use And Installation

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MAINTENANCE AND SERVICE.

To guarantee ideal operation of the product, a series of checks and inspections on it and its wiring must be performed at
regular intervals.
Maintenance must be carried out by an authorised Immergas technician.
DANGER
ELECTRICAL SPARK
• Before performing any maintenance or repairs, disconnect power to the electric control switchgear.
• Do not touch any live part for at least 10 minutes after disconnecting power.
• The compressor heater can even work in standby.
• It is prohibited to touch conductive parts.
• It is prohibited to wet the unit with water. This operation could trigger electrical discharges or fire.
• It is prohibited to leave the unit unattended if the protective casing has been removed.
The following checks must be carried out at least once a year by qualified Immergas personnel.
• Water pressure.
- Check the water pressure: if below 1 bar, restore it.
• Water filter.
- Clean the water filter.
• Water safety valve.
- Check that the safety valve works properly by turning the black knob on the valve anti-clockwise:
- If no noise is heard, contact an authorised Immergas technician.
- If water continues to leak from the unit, first close the water inlet and outlet shut-off valves and then contact an au-
thorised Immergas technician.
• Flexible hose of the pressure relief valve.
- Check that the flexible hose of the pressure relief valve is positioned appropriately to drain water.
• Electrical switchgear of the unit.
- Perform a thorough visual inspection of the electrical switchgear, looking for evident defects such as loose connections
or faulty wiring.
- Check that the contactors work properly using a tester. All the contacts of these contactors must be in the open position.
• Use of glycol (see Chap. 9.4.4 Anti-freeze protection of water circuit).
- Record the concentration of glycol and the pH value in the water circuit at least once a year.
- A pH value lower than 8.0 indicates that the inhibitor is running out and another inhibitor must be added.
- When the pH value is lower than 7.0, it indicates glycol oxidation. The hydraulic circuit must be drained and rinsed
thoroughly before causing serious damage.
Make sure that the glycol solution is disposed of in compliance with local standards and regulations.
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