Variable Flow - Heater Diagram

How the Pick "Variable Flow" Heater Works:

1. Water (or water-miscible liquid) to be heated enters mixing chamber here.
2. Set controller to desired set point.
3. Pump circulates water within the system to prevent stratification of water during low-flow conditions or intermittent use.
4. Modulating steam control valve, activated by the temperature controller, admits just enough steam to maintain the desired outlet temperature.
5. Steam and liquid mix thoroughly within the heater body.
6. During idle mode (no demand) the relief valve discharges added condensate as steam is admitted to maintain set point temperature.
7. Heated liquid outlet

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