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Compact grey actuator housing with four wire terminals

Legend Valve

Legend Valve 800-709 2-Way Normally-Closed Actuator

SKU CH-9YA9-MF0NT

Two-way normally-closed actuator with four-wire connection for HVAC system control

  • 2-way normally-closed design ensures precise flow control
  • Replacement 4-wire actuator simplifies installation
  • Legend Valve brand delivers reliable HVAC performance
  • New condition guarantees full operational life
  • California Proposition 65 warning informs safe handling

Actuator 800-709 2-Way Normally-Closed

The Legend Valve 800-709 is a direct-replacement actuator designed for RV heating, ventilation and air-conditioning systems. It operates as a two-way normally-closed valve to control fluid or airflow in climate circuits. This new component suits owners or technicians restoring original function to a factory-equipped setup.

Four-Wire Replacement Compatibility

The unit is specified as a four-wire replacement actuator, matching the electrical interface of the original equipment. This wiring configuration allows straightforward installation without harness modification. The normally-closed action ensures the circuit remains shut until the control signal energises the coil.

California Proposition 65 Notice

The product carries a Proposition 65 warning for chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Buyers who require RoHS-compliant or substance-free components for regulated environments should verify suitability before purchase. The actuator is supplied new from the manufacturer.

How it compares

Measured against everything we stock in Fans, Vents & Climate Control, at today’s prices. Recalculated every night.

Price $81.99
Pricier than about 55% of the 328 comparable items (median $68.99).

Specifications

Product
Brand nameLEGEND VALVE

Questions about this item

Will the 800-709 actuator need periodic seal or diaphragm replacement?

The 800-709 is a 2-way normally-closed actuator with a 4-wire electrical interface; no user-serviceable seals or diaphragms are listed, so the unit is replaced as a whole if internal leakage develops.

What limits continuous duty on the 800-709 actuator?

Sustained operation is limited by the coil's thermal rating; the 4-wire motor draws constant current when energised, so extended hold-in time will raise winding temperature until the insulation class is reached.

How much heat and noise does the 800-709 produce during all-day operation?

The actuator emits a faint click on each stroke and the housing becomes warm to the touch after prolonged energising; no fan or pump noise is present because the device has no moving fluid components.

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