Specifically designed to shut off the burner if there is a unsafe water loss for residential applications compact size easy to install and wire automatic reset feature resumes operation after a power outage when water is on probe. Mm 277k model rb 24e s rb 24e a.
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Guard dog rb 24e wiring diagram. Model rb 24e low water gul oh minimum safe walerlevel as determined by the ooi lill manufacturer hot water boiler make sure rb 24e is located close enough no more than 4 ft to burner control so the harness can be connected. Mm 825m mcdonnell miller general catalog. Rb 24e notethe example shows wiring an rb 24e to a honeywell model l8148e aquastat. 15000 ohms probe sensitivity. Mcdonnell miller 144692 rb 24e guarddog electronic 24v low water cut off water features benefits. Mpf 009b mcdonnell miller wiring harnesses for series rb 24e low water cut offs.
Mcdonnell miller guard dog rb 24e low water cut off switch for boiler and system protection. Compact size easy to install and wire green led indicating power on. Guard dog model rb 24e conductance type low water cut off for residential 24 vac hot water boilers mm 228p pdf. In a pipe tee above the boiler to system t circulating pump 314 2omm npt p1petoo optional. Diagram at right assumes z is the hot side and tv is the neutral or grounded side of the transformer. Note that the control requires a constant source of power with the red hot and white neutral wires connected directly to the transformer.
Automatic reset feature resumes operation after a power outage when water is on probe. The wiring diagrams show connecting the rb 24 on typical burner circuits. Test button to quickly confirm proper operation. The yellow wires can be connected at the beginning of the. For other manufacturers refer to the electrical schematic to confirm appropriate connections for obtaining 24 vac power and wiring in limit circuit.
Gallery of Guard Dog Rb 24e Wiring Diagram
