Honeywell ML7421A8035-E SERIES SMART LINEAR VALVE ACTUATOR standard valves in heating, ventilation, and air conditioning (HVAC)

The ML7421A / ML7421B actuators are designed for modulating control, accepting 0(2)...10v or 4...20mA input signal, and providing feedback signal 2...10 Vdc only.
They operate Honeywell’s standard valves in heating, ventilation, and air conditioning (HVAC) applications.

FEATURES

• Easy and quick installation
• No separate linkage and adjustments required
• Low power consumption and maintenance-free
• Self-adaption function
• Force-limiting end stops
• Manual operation knob
• 0(2)~10 Vdc input and 2~10 Vdc position feedback signal
• Direct/ Reverse action adjustable
• Stroke position on signal failure selectable
• Corrosion-resistant design

SPECIFICATIONS

Temperature Limits:
Ambient operating limits          -10~+50 ℃ at 5~95% r.h.
Ambient storage limits             -40...+70 °C at 5...95% r.h.
Medium temperature               Max. 150 °C (220 °C with High-Temperature kit)

Signals:
Signal input voltage               y=0(2)~10 Vdc or 4~20 mA
Position feedback signal        x=2~10Vdc
Output load                            1 mA max.

Safety:
Protection class                       III as per EN60730-1
Protection standard                 IP54 as per EN60529
Flame retardant housing         V0 as per UL94 (with metal cable gland)

Material:
Cover               ABS-FR
Yoke                Aluminum die-cast

Wiring