Honeywell ML6425 - Manual
Honeywell ML6425 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – ORDERING INFORMATION
- Page 3 – INSTALLATION; Location; CAUTION; Mounting; CAUTION
- Page 4 – WIRING
- Page 7 – Auxiliary Potentiometers; OPERATION; Signal Input Failure
- Page 8 – CHECKOUT; Direct Checkout
PRODUCT DATA
63-2516-07
ML6425, ML7425 Spring Return
Electric Linear Valve Actuators
APPLICATION
The ML6425 Spring Return Electric Linear Valve Actuators are
floating control actuators used with controllers that provide a
switched or floating single-pole double-throw (spdt) output.
These actuators operate standard Honeywell valves in
heating, ventilating, and air conditioning (HVAC) applications.
The ML7425 Spring Return Electric Linear Valve Actuators are
modulating control actuators used with controllers that provide
an analog output of 0 to 10 Vdc or 2 to 10 Vdc. These
actuators operate standard Honeywell valves in heating,
ventilating, and air conditioning (HVAC) applications. An
internal selector plug can be used to reverse the direction of
action.
FEATURES
ML6425 and ML7425
• Accurate valve positioning.
• Quick and easy installation.
• No separate linkage required.
• On power failure:
ML6425A and ML7425A drive valve stem down.
ML6425B and ML7425B draw valve stem up.
• Conduit connector is standard.
• No adjustments required.
• True spring return on power failure.
• Low power consumption.
• High close-off ratings.
• Force-limiting end switches.
• Direct/reverse action.
• Synchronous motor.
• Corrosion resistant design.
• Maintenance free.
ML7425
• Position Feedback signal.
• Fail-safe position selection for control signal loss.
Contents
Application ........................................................................
Specifications ...................................................................
Ordering Information ........................................................
Installation ........................................................................
WIring ...............................................................................
Operation ..........................................................................
Checkout ..........................................................................
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Summary
ML6425, ML7425 SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS 63-2516—07 2 ORDERING INFORMATION When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the TRADELINE® Catalog or price sheets for complete ordering number. If you have additional q...
ML6425, ML7425 SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS 3 63-2516—07 Table 1. Close-off Ratings for ML6425, ML7425 Electric Linear Valve Actuators and Honeywell Valves (psi). a Represents maximum pressure difference between the outlet and either of the two inlets. b Do not exceed 100 psi with V...
ML6425, ML7425 SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS 63-2516—07 4 Fig. 2. Attaching Actuator to Valve Collar. Fig. 3. Securing Actuator to Valve. Fig. 4. Removing Actuator Cover. Fig. 5. Removing Spring Retaining Clip and Releasing Manual Spring Handle. WIRING CAUTION Electrical Shock or Equ...
