ACV N-Mini Installation, Operating And Maintanance Instructions

Also see for Compact N1: Product guide Manual Installation, operation and maintanance manual

Contents

ACV N-Mini Installation, Operating And Maintanance Instructions Manual pdf 9 page image

7INSTALLATIONACV water kitACV can supply an optionalpre-assembled water kit.This kit comprises:• A pump;• A 3-way manual valve. Thisvalve can be power-operated ifrequired;• Connection pipes that can beused to connect a secondheating circuit;• Two isolating valves;• Connectors for the right- orefthand mounting of theexpansion vessel, the safetyvalve with pressure gauge andthe fill valve.The expansion vessel is notincluded.Typical single-circuit connectionDrainThe drain cock and safety valve must be connected to the buildingdrain.fig. 10 : Heating system connection9562138 847CONNECTING THE HEATING SYSTEM1. 3-way power-operated mixer valve2. Safety valve calibrated to 3 bar, with pressure gauge3. Pump4. Non-return valve5. System filling valve6. Expansion vessel7. ACV 13.00 controller (see Controller Kit on page 9)8. Heating system isolating valve9. Drain cockfig. 9 : ACV water kitHOT WATER CONNECTIONPressure reducing valveIf the mains water pressure exceeds 6 bar, a pressure reducingvalve calibrated to 4.5 bar must be installed.Safety groupThe safety group of the water tank must be approved by ACV andcalibrated to 7 bar; the group’s valve discharge must be connectedto the drain.Hot water expansion vesselInstalling a hot water expansion vessel will prevent any risk ofexcess pressure due to water hammer or pressure fluctuations.Hot water circulationIf the water tank is a long way from the point of use,installing a closed recirculation circuit can ensure a faster hot waterdrawoff at any time.Typical N + NHR domestic hot water connection (110 L)with thermostat valve1. Safety group2. Pressure reducing valve3. Thermostatic mixer4. Hot water pump5. Non-return valve6. Hot water expansion vessel7. Cold water supply tap8. Drawoff tap9. Drain cock10. Air vent11. Isolating valvefig. 11 : Hot water system connection73101184 569521D A N G E RHOTIMPORTANTAs a safety measure, we strongly advise theinstallation of a thermostatic mixer to preventany risk of burning to persons.