Caleffi 573001 Automatic Filling Unit with Disconnector Instruction Manual

1. Introduction

This instruction manual provides essential information for the safe and efficient installation, operation, and maintenance of the Caleffi 573001 Automatic Filling Unit with Disconnector. Please read this manual thoroughly before installation and use, and retain it for future reference.

1.1 Important Safety Information

Always ensure the main water supply is turned off before installation or maintenance.
Installation and maintenance should only be performed by qualified personnel in accordance with local regulations and standards.
Do not exceed the maximum operating pressure or temperature specified for the unit.
Protect the unit from freezing temperatures.
Wear appropriate personal protective equipment during installation and maintenance.

1.2 Intended Use

The Caleffi 573001 Automatic Filling Unit with Disconnector is designed to automatically fill and maintain the correct pressure in closed heating systems, preventing backflow of heating system water into the potable water supply.

2. Product Overview

The Caleffi 573001 is an automatic filling unit equipped with a CAa type disconnector and integrated shut-off valves. This unit ensures the safe and controlled replenishment of water in heating systems.

Key Features:

Automatic filling and pressure maintenance.
Integrated CAa type disconnector for backflow prevention, certified according to EN 14367.
Built-in shut-off valves for easy isolation.
Adjustable filling pressure range.

Image showing the Caleffi 573001 Automatic Filling Unit with Disconnector, highlighting its compact design and connection points.

3. Setup and Installation

3.1 Pre-installation Checks

Verify that the unit is undamaged and all components are present.
Ensure the installation location provides adequate space for maintenance and is protected from frost.
Confirm that the system's operating conditions (pressure, temperature) are within the unit's specifications.

3.2 Mounting the Unit

Choose a suitable vertical position for mounting, ensuring the flow direction arrows on the unit align with the system's flow.
Securely fasten the unit to a stable wall or support structure using appropriate mounting hardware (not supplied).

3.3 Connecting to the System

Connect the inlet side of the unit to the potable water supply, ensuring a shut-off valve is installed upstream for isolation.
Connect the outlet side of the unit to the heating system's filling point.
Ensure all connections are watertight using appropriate sealing materials.
Open the shut-off valves slowly to allow water to enter the unit and system.

3.4 Initial Filling and Pressure Adjustment

With the system empty, open the shut-off valve on the unit's inlet.
Adjust the filling pressure using the adjustment knob on the unit. The recommended pressure for most heating systems is typically between 1.0 and 1.5 bar, but refer to your heating system manufacturer's guidelines.
Monitor the system pressure gauge until the desired pressure is reached. The unit will automatically stop filling.
Bleed air from the heating system as required.

4. Operating Instructions

4.1 Automatic Operation

Once installed and set to the desired pressure, the Caleffi 573001 unit will automatically monitor the heating system pressure. If the system pressure drops below the set value, the unit will automatically open to replenish water until the set pressure is restored, then close.

4.2 Manual Shut-off

The integrated shut-off valves allow for manual isolation of the unit from both the potable water supply and the heating system for maintenance or service. Turn the valve handles to the closed position to stop water flow.

5. Maintenance

Regular maintenance ensures the longevity and proper functioning of your Caleffi 573001 unit.

5.1 Periodic Checks

Monthly: Visually inspect the unit for any signs of leaks or damage.
Annually: Check the system pressure gauge to ensure it is maintaining the set pressure.
Annually: It is recommended to have a qualified technician inspect the disconnector for proper operation and compliance with EN 14367.

5.2 Cleaning

Clean the exterior of the unit with a soft, damp cloth. Do not use abrasive cleaners or solvents.

6. Troubleshooting

This section addresses common issues you might encounter with the Caleffi 573001 unit.

Problem	Possible Cause	Solution
System pressure too low / Unit not filling	Water supply shut off. Inlet filter clogged. Unit malfunction.	Check and open the main water supply valve. Inspect and clean the inlet filter (if accessible and safe to do so). Contact a qualified technician.
System pressure too high / Unit continuously filling	Set pressure too high. Unit malfunction.	Adjust the set pressure to the recommended value. Contact a qualified technician.
Water leakage from unit	Loose connections. Damaged seals or components.	Tighten connections (do not overtighten). Isolate the unit and contact a qualified technician for inspection and repair.

If you are unable to resolve an issue, please contact a qualified heating system technician or Caleffi customer support.

7. Specifications

Manufacturer	CALEFFI
Model / Item Code	573001
Filling Group Adjustment Range	0.2 ÷ 4 bar
Max Operating Pressure	10 bar
Max Operating Temperature	65°C
Disconnector Certification	EN 14367
Batteries Required	No

8. Warranty and Support

Caleffi products are manufactured to high standards and come with a manufacturer's warranty. Please refer to the specific warranty terms provided with your purchase or visit the official Caleffi website for detailed information.

For technical assistance, spare parts, or warranty claims, please contact your local Caleffi distributor or customer support. Ensure you have your product model number (573001) and purchase details available when contacting support.

Caleffi Official Website: www.caleffi.com