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AFRISO GAK Operating Instructions Manual

Connection assembly for expansion vessel
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Operating 
instructions
Connection assembly for expansion vessel
GAK
Type: GAK steel with quick-action coupling
GAK steel with anti-tamper cap valve
GAK brass with heat insulation and anti-tamper cap valve
Copyright 2021 AFRISO-EURO-INDEX GmbH. All rights reserved.
Version: 11.2021.0
ID: 900.000.0204

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  • Page 1 Operating  instructions Connection assembly for expansion vessel Type: GAK steel with quick-action coupling GAK steel with anti-tamper cap valve GAK brass with heat insulation and anti-tamper cap valve Copyright 2021 AFRISO-EURO-INDEX GmbH. All rights reserved. Version: 11.2021.0 ID: 900.000.0204...
  • Page 2 About these operating instructions About these operating instructions These operating instructions describe the connection assembly for expan- sion vessel "GAK" (also referred to as "product" in these operating instruc- tions). These operating instructions are part of the product. • You may only use the product if you have fully read and understood these operating instructions.
  • Page 3 Information on safety Information on safety Safety messages and hazard categories These operating instructions contain safety messages to alert you to poten- tial hazards and risks. In addition to the instructions provided in these oper- ating instructions, you must comply with all directives, standards and safety regulations applicable at the installation site of the product.

  • Page 4: Information On Safety

    Information on safety Intended use This product may only be used: • In sealed heating systems as per EN 12828 • For heat generators with a heating capacity of up to 50 kW The diaphragm safety valve may only be used to blow off the following flu- ids from sealed heating systems (as per EN 12828) for the purpose of pro- viding protection against excess pressure: •...
  • Page 5 Information on safety Qualification of personnel Only appropriately trained persons who are familiar with and understand the contents of these operating instructions and all other pertinent product docu- mentation are authorized to work on and with this product. These persons must have sufficient technical training, knowledge and expe- rience and be able to foresee and detect potential hazards that may be caused by using the product.

  • Page 6: Transport And Storage

    Transport and storage Transport and storage The product may be damaged as a result of improper transport or storage. NOTICE INCORRECT HANDLING • Verify compliance with the specified ambient conditions during transport or storage of the product. • Use the original packaging when transporting the product. •...
  • Page 7 • Diaphragm safety valve • Quick air vent • Pressure gauge There are three product versions: • GAK steel with quick-action coupling • GAK steel with anti-tamper cap valve • GAK brass with heat insulation and anti-tamper cap valve...

  • Page 8: Product Description

    Product description Overview and dimensions Product (brass) with heat insulation and anti-tamper cap valve 46 mm 300 mm A. Carrier F. Anti-tamper cap valve B. Quick air vent (Aquastop) G. Drain valve C. Diaphragm safety valve H. Connection diaphragm expan- sion vessel D.
  • Page 9 Product description Product (steel) with anti-tamper cap valve 43 mm 258 mm A. Carrier F. Drain valve B. Quick air vent (Aquastop) G. Connection diaphragm expan- sion vessel C. Diaphragm safety valve H. Integrated mounting valve D. Pressure gauge I. Connection to heat generator E.
  • Page 10 Product description Product (steel) with quick-action coupling A. Carrier E. Quick-action coupling (connec- tion diaphragm expansion ves- B. Quick air vent (Aquastop) sel) C. Diaphragm safety valve F. Mounting valve D. Pressure gauge G. Connection to heat generator Function If the maximum permissible pressure in the heating system is exceeded, the diaphragm safety valve discharges liquid.
  • Page 11 Product description Approvals, conformities, certifications Refer to the operating instructions of the diaphragm safety valve. Technical data Parameter GAK steel GAK brass General specifications Temperature of the medium Max. 120 °C System pressure 3 bar Carrier Material Steel Brass Connection to heat generator G¾...
  • Page 12 Mounting Mounting Only mount the product after having completed all pipe assembly work, all welding work and all soldering work. 1. Flush the lines of the system before installing the product. If you install the product in an existing system, observe the information in chapter "Retrofitting the product".
  • Page 13 Mounting Mounting the product 77932 A. Mount the product above the level of B. Flow line the heat generator C. Heat generator...
  • Page 14 Mounting GAK brass GAK steel A. Enclosed mounting accessories...
  • Page 15 Mounting Max. 180° ± 90°...
  • Page 16 Mounting 5.2.1 Mounting the diaphragm expansion vessel GAK brass and GAK steel with anti-tamper cap valve  Verify that the anti-tamper cap valve is in the position "open" (stop counterclockwise). 1. Mount the enclosed screw connection (A) to the diaphragm expansion vessel (B).
  • Page 17 Mounting GAK steel with quick-action coupling 1. Mount the enclosed screw connection (A) to the diaphragm expansion vessel (B). 2. Mount the diaphragm expansion vessel to the product with the G¾ screw connection. 3. Tighten the union nut (D). - Tightening torque 60 Nm...
  • Page 18 Mounting Retrofitting the product WARNING HOT LIQUID Water in heating systems is under high pressure and can have temperatures of more than 100 °C. • Verify that the heating water has cooled down before opening the system and mounting the product. •...

  • Page 19: Operation

    Operation Operation For safety reasons, liquid must escape via the discharge line of the safety valve during heating.  Verify that the safety valve is not shut off. 1. If the safety valve has responded, check the system. 2. Remove the cause before recommissioning the system. 3.

  • Page 20: Maintenance

    Maintenance Maintenance of diaphragm expansion vessel with anti-tamper cap valve In the case of the product with anti-tamper cap valve, the diaphragm expan- sion vessel does not have to be dismounted during maintenance. 1. Provide a container with a sufficient capacity to collect the liquid dis- charged from the diaphragm expansion vessel.

  • Page 21: Troubleshooting

    1. Dismount the product (see chapter "Mounting", reverse sequence of steps). 2. Dispose of the product. Returning the device Get in touch with us before returning your product (service@afriso.de). Warranty See our terms and conditions at www.afriso.com or your purchase contract for information on warranty.

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