WD_2021

71R SERIES

PRESSURE SWITCHES

RED DOT BINARY TM PRESSURE SWITCHES

This switch assembly performs two distinct func- tions. The first function prevents the compressor from operating if system charge is lost or ambient temperature is too low. The second stops compres- sor if head pressure increases to unsafe levels. It automatically resets when pressure drops back to normal. Install Binary TM on liquid side of A/C system between condenser and expansion valve, for use with R-12 and R-134a.

Opens

Closes

Low Pressure Protection

30 - 15 Psig

40 PSIG Maximum ( Rising Pressure ) 210 - 250 Psig Below ( Opening Pressure )

( Falling Pressure ) 300 - 350 Psig ( Rising Pressure )

High Pressure Protection

MOUNTING CONFIGURATION

71R7000 RD-5-4646-0P 3 ⁄ 8 -24 UNF-2A Male Thread With Bulkhead Type Seal Using a 2-012 "O" Ring.

71R7050 RD-5-4640-0P 7 ⁄ 16 -20 UNF-2B Female Thread For Installation On Male "Schrader" Type Valve.

ELECTRICAL 7 AMP Resistive 4 AMP Inductive 28 VOLT D.C. Maximum 2.50 Series Male Tab Terminals BINARY ™ E/C Connection end of BINARY TM

SWITCHES

1 2

RED DOT BINARY TM HARNESS

71R4511 RD-5-12151-2P RED DOT BINARY TM boot (provides a molded 2 wire connection to Binary switch; lead wires are 28” long.) helps eliminate terminal corrosion and breakage.

Terminals 1 & 2 Controls Clutch High/LowPressure Protection Terminal 1: To compressor clutch “compressor” black wire Terminal 2: To thermostat “AC/Thermostat” black/white wire

= Limited to stock on hand

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