ES62, ES75 & ES142 Spring Return Electric Actuators

CLARK SOLUTIONS
ES62, ES75 & ES142 Spring Return Electric Actuators
Tri-State, & Modulating, 132, 177 & 310 in-lb

The ES62C2(-S)(24 VAC/VDC), ES75C2(-S) and ES142C2(-S) direct coupled 24 VAC spring return electronic actuators are designed for tri-state (floating) control of building HVAC dampers and valves.

The ES62B2(-S), ES62B2-ZS(-S), ES75B2(-S), ES75B2-ZS(-S), ES142B2(-S), ES142B2-ZS(-S) & ES142D2(-S) direct coupled 24 VAC spring return electronic actuators are designed for modulating control of building HVAC dampers and valves.

These actuators are used in constant or variable air volume installations for the control of return air, mixed air, exhaust, and face and bypass valves or dampers requiring up to 62 in-lb (7 N-m), 75 in-lb (8.5 Nm) or 142 in-lb (16 Nm) torque. They are designed for applications that require the valve or damper to return to a fail-safe position when there is a power failure.

WIRING & COMPONENTS

1. Positioning scale for angle of rotation
2. Manual override wrench opening and direction of
rotation arrow
3. Span adjustment (-ZS version)
4. Offset (start point) adjustment (-ZS version)
5. Connection cables
6. Gear train lock pin
7. Auxiliary switch B
8. Auxiliary switch A
9. Position indicator
10. Standard or self-centering shaft adapter*
11. Shaft adapter locking clip
12. Position indicator adapter
13. Mounting bracket

* Self-centering shaft adaptor shown

OPERATION
Two Position or Tri-state: A floating control signal controls the actuator. The actuator’s angle of rotation is proportional to the length of time the signal is applied. A 24 VAC control signal to wire 6 causes the actuator coupling to rotate clockwise. A 24 VAC control signal to wire 7 causes the actuator coupling to rotate counterclockwise.

With no control voltage the actuator holds its current position. In the event of a power failure, the actuator spring returns to the “0” position.

An improperly-tuned control loop will cause excessive repositioning that will shorten the life of the actuator.

Modulating Type: A continuous 4 to 20 mA or 0 to 10 VDC signal from a controller to wire 8 operates the actuator. The angle of rotation is proportional to the control signal. A 0 to 10 VDC position feedback output signal is available between wires 9 and wire 2(com)to monitor the position of the motor.

In the event of a power failure, or when the operating voltage is shut off, the actuator returns to the “0 ” position.

PLEASE CALL 1-800-253-2497 TO ORDER THESE ITEMS
Actuator Model Number Table
24 VAC Operating Voltage					Torque	Input Signal	Cabling
Standard	With Dual Auxiliary Switches & Potentiometer	Dual Auxiliary Switches only	Span/Offset Adjustable	Dual Aux. Switches and Span/Offset Adjustable	Torque	Input Signal	Cabling
ES62C2	ES62C2-S	-	-	-	62 in-lb min. (7 N-m)	Tri-state (floating)	Standard Cable
ES75C2	ES75C2-S	-	-	-	75 in-lb min. (8.5 N-m)	Tri-state (floating)	Plenum Cabling
ES142C2	ES142C2-S	-	-	-	142 in-lb min. (16 N-m)	Tri-state (floating)	Plenum Cabling
ES62B2	-	ES62B2-S	ES62B2-ZS	ES62B2-ZS-S	62 in-lb min. (7 N-m)	0-10 VDC 0-20 mA	Plenum Cabling
ES75B2	-	ES75B2-S	ES75B2-ZS	ES75B2-ZS-S	75 in-lb min. (8.5 N-m)	0-10 VDC 0-20 mA	Plenum Cabling
ES142B2	-	ES142B2-S	ES142B2-ZS	ES142B2-ZS-S	142 in-lb min. (16 N-m)	0-10 VDC 0-20 mA	Plenum Cabling
ES142D2	-	ES142D2-S	-	-	142 in-lb min. (16 N-m)	4-20 mA	Plenum Cabling

Specifications		ES62C2(S)	ES75C2(S)	ES142C2	ES62B2(S)(ZS,S)	ES75B2(S)(ZS,S)	ES142B2(S)(ZS,S)	ES142D22(S)
Power supply		24 VAC	24 VAC +20%-15%,50/60HZ		24 VAC	24 VAC +20%-15%,50/60HZ
Transformer sizing		(class 2 power source required for UL, CSA)
Power consumption		5 VA running	8 VA running		5 VA running	9 VA running
Electrical connection		3 ft 18 GA appliance	3 ft 18 AWG plenum cable
Control signal "Y"		-	-	-	0-10 VDC(max 35VDC), 0-20 mA(add 500 ohm, 1/4 W resistor across pins 2 & 8)			4-20 mA
Input resistance		-	-	-	>100 Kohm	100 Kohm (0.1 mA)		500 ohms
Operating range		-	-	-	0-10 VDC, 0-20 mA(add 500 ohm, 1/4 W resistor across pins 2 & 8)			4-20 mA
Feedback signal		-	-	-	0-10 VDC, ±1 mA max. for 95º
Overload protection		electronic throughout 0º to 95º rotation
Potentiometer		0-1000 Ohms, max. 1 mA			-	-	-	-
Manual override		3 mm hex crank (shipped with actuator)
Angle of rotation		mechanically limited to 95º
Minimum torque		62 in-lb min.	75 in-lb min	142 in-lb	62 in-lb min.	75 in-lb min	142 in-lb min.	142 in-lb min.
Direction of rotation		Direction & Direction spring return, selectable when ordering (CW=clockwise Direction with power, counterclockwise by spring; CCW=reverse of CW)
Position indication visual indicator,		visual indicator, -5º to 90º (-5º is spring return position)			0 to 90º (0º is spring return position)
Shaft size		1/4" to 3/4" dia. 1/ 4" to 1/2"sq	3/8" to 1" dia. 1/4" to 3/4"sq		1/4" to 3/4" dia. 1/ 4" to 1/2"sq	3/8" to 1" dia. 1/4" to 3/4"sq
Minimum shaft length		3/4" (20 mm)
– Auxiliary switches (-S option)		24 to 250 VAC, 6 A res 12 to 30 VDC, 2A	Plenum 4A resistive, 24 VAC Plenum 2A inductive, 24 VAC		24 to 250 VAC, 6 A res	Plenum 4A resistive, 24 VAC Plenum 2A inductive, 24 VAC
Switch range (-S option)
	– Switch A	0° to 90° with 5° intervals
	– Rec. range usage	0° to 45°
	– Factory setting	5°
	– Switching hysteresis	2°
Switch range (-S option)
	– Switch B	0° to 90° with 5° intervals
	– Rec. range usage	45° to 90°
	– Factory setting	85°
	– Switching hysteresis	2°
Running time for 90º		motor: 90 secs, constant spring 15 secs typ. (60)	motor:120 secs, constant spring: 25 sec Typ.	motor: 90 secs, constant spring 15 secs typ.		motor:150 secs, constant spring: 25 sec Typ.	motor: 90 secs, constant spring 15 secs typ.
Humidity		95% RH noncondensing
Housing type		NEMA type 1/IP40 according to EN60529; NEMA 4/4X housings available on request
Housing material		Diecast aluminum
Ambient temperature		-25°F to 130°F (-32°C to 55°C)
Storage temperature		-25°F to 158°F (-32°C to 70°C)
Noise level		max. 20 dBA	20 dBA	<45 dBA running
Servicing		maintenance free
Agency ratings		UL 873 or UL60730 listed, CE-UL certified to CSA C22.2 No. 24-93 (pending CE approval for plenum models)
CE conformity Immunity		EMC: 89/336/EEC, Emissions: EN5081-1
		EN61000-6-2 except EN50082-1	IEN50082-2
Quality standard		ISO 9002
Weight		2.86 lbs (1.3 kg)	6 lbs (2.7 kg)		-	-

For assistance call 978-568-3400