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OnBuy.com£88.24Visit shop Caleffi 553140 Automatic Filling Unit 1/2'' With Manual Cock, Strainer, Check Valve.and Pressure Gauge 8016615016352
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This Caleffi Automatic Filling Unit is designed for heating and cooling systems requiring consistent water pressure. Its key benefit is maintaining optimal system pressure automatically, preventing damage and ensuring efficient operation. A potential caveat is the need for periodic checks of the pressure gauge for manual verification. This unit features a calcification-resistant internal preset, an integrated pressure gauge, a manual cock, strainer, and check valve, operating within a pressure range of 0.3 to 4 bar and up to 70°C.
| Model Part Number | 553140 |
|---|---|
| Brand | Caleffi |
The maximum operating pressure for the Caleffi Automatic Filling Unit is 16 bar, while the adjustable filling pressure range is 0.3 to 4 bar.
This unit is primarily designed for heating and cooling systems. For domestic hot water, a different type of pressure reducing valve might be more appropriate.
The pressure is adjusted using a knob on the unit. Rotate the knob to increase or decrease the desired system pressure within the 0.3 to 4 bar range. Refer to the installation manual for specific instructions.
The check valve prevents water from flowing backward from the heating/cooling system into the main water supply line, which is crucial for system hygiene and integrity.
It is recommended to check and clean the strainer periodically, typically during annual system maintenance. The frequency may increase in areas with higher water sediment content.
The maximum operating temperature for this Caleffi Automatic Filling Unit is 70 °C (158 °F).
This unit is designed to maintain pressure in a closed system and does not require self-priming in the conventional sense. It relies on the incoming water supply pressure to function.
Check if the manual cock is fully open. Ensure the inlet water supply is turned on and has adequate pressure. Verify that the strainer is not clogged.
Adjust the pressure setting knob on the unit. Refer to the product manual for correct adjustment procedures. Ensure the set point is within the 0.3-4 bar range.
Check all connections for tightness. Inspect seals and O-rings for damage. If leaking persists from the unit itself, contact a qualified technician.
Ensure the gauge is correctly seated and not damaged. If the gauge is faulty, it may need replacement.
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