These controls are used as the secondary lwco on steam boilers and can be used as the primary lwco on hot water heating boilers. Wiring diagram legends 1.
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Mcdonnell miller pse 802 24 wiring diagram. Mcdonnell miller technical support information product brochures and more. Move the wire clamping plate p back until the plate touches the back side of the screw head. Strip about 13 85 mm of insulation from the wire. Probe control lwco for steam boilers. Lquidlvlcntrls121 131 3607 216 pm page 121. Pse 802 24 control unit pdf manual download.
The wiring diagrams show connecting the rb 24 on typical burner circuits. Series ps 802 24 series ps 801 120 15. Loosen the terminal screw n but do not remove. Insert the stripped end of the wire under the wire clamping plate p and securely tighten the terminal screw n. View and download mcdonnell miller pse 802 24 instruction manual online. They provide a positive and economical way to detect change or loss of air flow velocity caused by closed damper or fan inlet a loose fan wheel a slipped or broken fan belt a dirty or clogged filter or an overload on a fan motor switch.
Pse 802m 24 24 vac na 50 va pse 802m u 24 pse 801m 120 120 vac 75 fla 432 lra 125 va pse 801m u 120 hertz 5060 control power consumption. These controls are used as the secondary lwco on steam boilers and can be used as the primary lwco on hot water heating boilers. Note that the control requires a constant source of power with the red hot and white. Diagram 1 wf2 u 24 ps 802 lwco wn h ps 801 120 lwco uni match water feeder wf2 u 120 field or factory jumper wire p 12345 connect wire from terminal nof water feeder to terminal 2on lwco. Mcdonnell miller 153917 ps 802 24 electronic 24v low water cut off steam low water cut off electronic for steam boilers series ps 800 features for residential and commercial applications electronic operation user friendly diagnostics red low water and shorted probe led green power and test led higher probe sensitivity. Connect wire from terminal hof water feeder to terminal 1on lwco.
Buy mcdonnell miller 153917 ps 802 24 24v probe type low water cut off for steam boiler. Mcdonnell miller air flow switches sense air flow or no air flow by responding only to velocity of air movement. The series pse 800 m manual reset lwco is a new addition to the mcdonnell miller probe type low water cut off group of products. Mcdonnell miller 153602 lwco pse 802 m 24 electronic 24v low water cut off w manual reset steam the series pse 800 m manual reset lwco is a new addition to the mcdonnell miller probe type low water cut off group of products. Voltage of new manual reset lwco must be the same as the existing automatic reset lwco. Select a wiring method after reviewing the wiring diagrams and notes.
Basic wiring mcdonnell miller the rb 24 can be used on gas and oil fired boilers with. With a self cleaning probe available only on mcdonnellread more.
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