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Control of heat pump from control panel plus emergency switch

kod090 603 1
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 18326159
    kod090
    Level 2  
    Hello, I have a question, how to control the heat pump from the control panel, i.e. I have already connected the control panel to the relay 12V to 230V and it works well, e.g. every 2 hours it starts the pump for 20 minutes, and now I would like to make an emergency switch of the pump e.g. when the control panel is damaged? I understand that I have to use another relay, but I do not know how to draw it, should this emergency switch control 220 current separately, bypassing the relay from the control panel? Regards.
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  • #2 18329743
    piracik
    VIP Meritorious for electroda.pl
    If the pump is to operate in the event of a control panel failure, use a second relay with an NC contact, which is always operated from the control panel.
    If the control panel fails for any reason, it closes the contact for pump operation.
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