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Summary of Contents for Watts HKFC25 Series
- Page 1 Series HKFC25 Pump mixing groups with electronic fix-point control for heating systems Installation and operating manual (translated from the original operating manual) Watts.eu...
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Page 2: Table Of Contents
Contents 1 General Information General Information ............1.1 Important information about the installation and Important information about the installation and operat- operating manual ing manual..............NOTICE Notes on supplier documents........Product conformity............The plant operator is responsible for ensuring compliance with the local laws and regulations (e.g. -
Page 3: Safety
• The product (HKFC25) is only operated according to local reg- 2 Safety ulations and occupational health and safety regulations. • All precautionary measures have been carried out to avoid 2.1 Safety notices dangers originating from the product (HKFC25). DANGER •... -
Page 4: Technical Specification
3 Technical specification Hydraulic data Max. operating pressure 6 bar Ambient temperature -2 to +40 ° (see pump specifications) Operating temperature +2 to +90 ° (see pump specifications) Gravity brake opening pressure 10 mbar Kvs mixing valve 6.3 m³/h Temperature display range 0 - 120 °C Temperature setting range 20 - 80 °C Nominal width... -
Page 5: Pressure Loss Diagram
4 Pressure loss diagram HKFC25 1.000 1.000 10.000 Flow rate [L/h] 5 Dimensions 240,5 Rp 1 Rp 1 G 1½ G 1½ HKFC25-IM-DE-W-UK-02-2025-Rev.1 | Part no. 10084533... -
Page 6: Component Overview
6 Component overview Boiler circuit supply inlet Heating circuit supply outlet Heating circuit return inlet Heating circuit supply outlet Wall bracket Screw fittings G 1½ union nut x G 1 female thread Ball valve with gravity brake (supply) Thermowell for supply line temperature sensor (op- tional) Circulation pump 3-way mixing valve... -
Page 7: Installation And Commissioning
8. Remove the thermometer handles and the intermediate insula- 7 Installation and commissioning tion. 9. Connect the supply and return lines and check all screw con- 7.1 General safety information nections are tight. DANGER 7.4 Starting the unit Electrical energy! ü... -
Page 8: Switching The Supply And Return Lines
7.7 Switching the supply and return lines 4. Loosen the nut on the return ball valve and rotate the latter through 180 degrees. Remove the actuator from the 3-way ü The supply is on the right-hand side mixing valve. 1. Disconnect the power supply and secure against reconnec- 5. -
Page 9: Maintenance
5. Disconnect the circulation pump wiring. 8 Maintenance WARNING 8.1 General safety information Hot water! DANGER Severe scalding possible. • Allow the product (HKFC25) to cool before carrying out any Electricity! maintenance, cleaning or work repair. Risk of death from electric shock! •... -
Page 10: Fitting The 3-Way Mixing Valve
8.6 Fitting the 3-way mixing valve right-handed installation 1. Replace the seals on the screw connections. 2. Position the 3-way mixing valve (A) and tighten the union nuts (X). Tightening torques for DN25 pump groups 45° • Pump G 1½, AFM 34/2 seals: 130 Nm. •... -
Page 11: Disposal
10 Warranty WATTS products are tested extensively. WATTS therefore guar- WARNING antees only the replacement or, at the sole discretion of WATTS, Potential for contamination of the environment and groundwater the free-of-charge repair of components of the supplied products from improper disposal! where these, in the opinion of WATTS, exhibit verifiable manufac- •... - Page 12 Warranty: all sales and contracts for sale are expressly conditioned on the buyer’s assent to Watts terms and conditions found on its website www.watts.eu/en/gtc. Watts hereby objects to any term, different from or additional to Watts terms, contained in any buyer communication in any form, unless agreed to in a writing signed by an officer of Watts.
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