ML6420A/ML6425A,B. Electric Linear Valve Actuators

Transcription

1 A/A,B Electric Linear Valve Actuators SPECIFICATIO DATA FEATURES Quick and easy installation o separate linkage required o adjustments Low power consumption Force-limiting end switches Spring-return models anual operator odels for low and line voltage Synchronous motor Corrosion-resistant design aintenance-free Actuator-valve combinations approved according to DI 97 available APPLICATIO The A / A,B actuators enable floating control, and are suitable for use in conjunction with O/OFF or floating single-pole, double-throw (SPDT) control outputs. They can operate Honeywell s standard valves in heating, ventilation, and air conditioning (HVAC) applications. SPECIFICATIOS Temperature Limits Ambient operating limits C at...9% RH Ambient storage limits C at...9% RH edium valve temperature see section "odels" on pg. ; C with High-Temperature Kit (see section "Accessories" on pg. ) Protection Protection standard IP per DI Insulation Class II per DI E673 Flame retardant as per UL 9-V (with metal cable gland not supplied) Operating mode Type B as per E 673- Wiring Wiring terminals. mm Cable entry x. and two additional knock-outs 6x. and x. Weight on-spring return type.3 kg Spring return type. kg aterial Cover ABS-FR Base glass fiber reinforced plastic Yoke aluminum diecast Dimensions See Fig. on page U.S. Registered Trademark EB-3GE R Copyright Honeywell Inc. All rights reserved

2 A/A, B SPECIFICATIO DATA ODELS model A37 A33 A36 B3 A3 B3 A3 supply voltage Vac %, /6 Hz 3 Vac +/-%, /6 Hz medium valve temperature* C 3 / C** C 3 / C** C power consumption VA 6 VA VA VA 6. VA signal input signal input Supply voltage betw. terminals and V ; stem extended. -way valve: closed, 3-way valve port A-AB: open Supply voltage betw. terminals and V ; stem retracted. -way valve: open, 3-way valve port A-AB: closed. A33 Supply voltage betw. terminals and Ph ; stem extended. -way valve: closed, 3-way valve port A-AB: open Supply voltage betw. terminals and Ph ; stem retracted. -way valve: open, 3-way valve port A-AB: closed. stroke mm run time at Hz min. min.8 min min. min close-off force 6 spring return time -- s -- spring return direction (at power failure) -- extends retracts extends retracts * When equipped with the High-Temp. Kit (see section "High-Temperature Kit" on pg. ), all actuators are suitable for medium valve temperatures of up to C. **Depending upon the given combination of valves and actuators, see tables below. edium temp. < 3 C (DI Certificate F39/3) edium temp. < C (not DI-certified) valve dimensions with actuators valve dimensions with actuators V6A (P6) V6A (P6) -8 mm VA (P) A36 VA (P) -8 mm A36 V38A (P6) A3 V38A (P6) A3 - mm V9A (P/) V9A (P/) -6 mm -- OPERATIO General The drive of a synchronous motor is converted into linear motion of the by using a spur gear transmission. The is connected with the valve stem by a button keyed retainer connection. An integrated spring package limits the stem force to a factory-adjusted value in either direction. Installed microswitches switch off the actuator precisely when the specified stem force is reached. anual Operation Actuators without spring return are equipped with a manual operator used in case of power failure. anual operation is possible only after the power supply has been switched off or disconnected. To operate, push the manual operator knob down and turn clockwise to move the stem downward and counterclockwise to move the stem upward. If the actuator returns to automatic control, the manual operator knob unlocks automatically. In the case of actuators with spring return, the manual operator is located under the cover. Spring Return The A,B spring return actuators provide a defined safety position of the valve in case of power failure. The spring return actuators are shipped from the factory with a shipment stop (to lock the knob) in order to allow connection of the stem button retainer to the valve stem without power supply. Electrical Installation The actuators are delivered with a pre-installed cable gland x. and two additional knock-outs for 6x. and x.. EB-3GE R

3 A/A, B SPECIFICATIO DATA CLOSE-OFF PRESSURE RATIGS in kpa Stem Force 6 Stroke mm Valve mm Size inch ½ ¾ ¼ ½ ½ 3 Valves Close-Off Pressure Ratings VR,S V38A 6/ 6 3 V9A V6A VA V9A 6/ 6 3 V3R,E V39C (P6) V39A (P6) VA 6 3 For details on the valves, see following Specification Data o.: VR EB-6GE 9A EB-38GE VS EB-8GE V39A/A EB-3GE V6A EB-GE VA EB-GE V9A EB-GE V3R EB-6GE V38A EB-9GE V3E EB-6GE 3 EB-3GE R

4 A/A, B SPECIFICATIO DATA DIESIOS 3x(6) 67. 3x(6) (with High-Temperature Kit: mm) 36 (with High-Temperature Kit: mm) Fig.. Dimensions in mm WIRIG ~ V~ V V ~ B safety temp. limiter V ~ V A without spring return A,B with spring return Fig.. Wiring V~ models 3 V~ L B safety temp. limiter 3 V~ L A without spring return A,B with spring return Fig. 3. Wiring 3 V~ models EB-3GE R

5 A/A, B SPECIFICATIO DATA ACCESSORIES Auxiliary Switches The actuators can be equipped on site with an auxiliary switch unit consisting of two switches. Their switching points are adjustable over the full length of the actuator stroke. The switches can be used to switch pumps or provide remote indication of any stroke position. A cable gland x. is delivered with the unit. Part number: max. (3) A High-Temperature Kit (for applications > C and < C medium temperature) order number High-Temp. Kit valve VR/VS V3R/V3E V38A/V39A V38A/V39A V9A V6/V/VA D S S 3V 3V V V 3V V SELV V SELV 3V Fig.. Auxiliary switches Auxiliary Potentiometers Auxiliary potentiometers are available for mounting on site. They can be used as feedback potentiometer and/or to provide remote indication of the valve position. A cable gland x. is delivered with the unit. Part number: ( k ) Part number: ( ) T Y G Fig.. Auxiliary potentiometer anufactured for and on behalf of the Environmental and Combustion Controls Division of Honeywell Technologies Sàrl, Rolle, Z.A. La Pièce 6, Switzerland by its Authorized Representative: Automation and Control Solutions Honeywell GmbH Böblinger Strasse 7 7 Schönaich, Germany Phone +9 () Fax +9 () EB-3GE R Subject to change without notice