Water Temperature Control—Recirculation Systems—Digital

DMC3

Model DMC3 features three DRV80 pre-piped in parallel and pressure tested complete with isolation valves, strainers, check valves, thermometers and pressure gauges. The Brain Model DRV80 is a fully digital recirculating valve (DRV) for “point of source” or mechanical room based installation. DRV80 is designed specifically to be the primary water temperature controller in a continuously pumped recirculating hot water system.

Operational Specifications

The enhanced accuracy possible with DRV80 digital technology, combined with its data input/output communication capability equals:

• Accurate control of blended water drawn from the systemat a point of use typically within +/-2°F at draw off pointsa minimum of 5m downstream of mixing valve duringconsistent system demand periods
• Operational water pressure of 10 -150 psig
• Minimum valve inlet to outlet temperature requirement(system recirculation temperature loss) of 2°F
• Automatic shutoff of hot water flow upon cold water inletsupply failure
• Automatic shutoff of hot water flow in the event of a powerfailure
• Maintain a consistent system “idling” temperature andcontrol Temperature Creep without the use of a manualthrottling device or balance valve.
• System shall not require a temperature activated pumpshut-off device (aquastat).
• Programmable set point range of 81-158°F (29-71°C)
• Ability to thermally disinfect at recommended temperatures
• Programmable 1st level hi/lo temp alarm display
• Programmable temperature error level for safety shutdown