Inventors:
Javier Hoggard - Castle Rock CO, US
International Classification:
F16P001/00
Abstract:
An automatic water freeze prevention device having a first valve, second valve and third valve that cooperate to fill or drain a water utilization device according to pre-selected temperature conditions. These three valves are driven to their respective open/closed positions by an electrical power sending device that is, in turn, actuated by a temperature setting device that is associated with a temperature sensing device.