How it works: The NATCO Retriever
- When the tank temperature drops below the control setpoint, condensate is directed through the Retriever. The Bypass solenoid valve closes, and the condensate solenoid valve opens.
- If the condensate does not suffice to bring the temperature to the setpoint, the Retriever will enter live steam mode.
- For Retriever I's: In live steam mode, the bypass solenoid valve will open, the condensate solenoid valve will close, and the steam solenoid valve will open.
- For Retriever II's: In live steam mode, the steam solenoid valve will open, directing steam throught he upper coil, while condensate continues to flow through the bottom coil.
- When the tank reaches the setpoint temperature, both condensate and steam stops flowing.
- The 316L stainless steel tank with 316L stainless steel coil is insulated so that the water loses less than 1/2F per hour.
R120II Models have two heat exchangers.