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KMC Controls MEP-4201 User manual

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MEP-4201/4501/4901 1 Installation Guide
Installation Guide
Tri-State/Two-Position Actuators (25/45/90 in-lb.)
MEP-4201/4501/4901
Mounting 1
Wiring 2
Maintenance 2
More Information 2
Mounting
Illustration 1—Overview (Direct-Coupled Mounting)
1. Ensure the damper can move freely through its
entire range of motion, and x any binding before
installing the actuator. Turn the damper blade to
its fully closed position.
2. Press (to the right) and hold the gear disengage-
ment lever (see Illustration 1), rotate the actuator
to the fully closed position, and release the lever.
NOTE: Depending on the damper-seal design,
backing the actuator o its stop
approximately 5° may provide tight
damper shut-o.
3. Align the actuator and slide it onto the shaft.
4. Leaving a gap between the actuator and
mounting surface to prevent any binding, nger-
tighten the nuts on the V-bolt.
5. Insert the provided (HMO-4001/4002, dependent
on model) non-rotation bracket into the slot at the
base of the actuator and secure the non-rotation
bracket with two #8 or #10 self-tapping screws.
6. Evenly tighten the V-bolt nuts (30–35 in-lb.
on MEP-4201 model or 60–70 in-lb. on MEP-
4501/4901).
7. If desired, use a 7/64-inch hex key wrench to
loosen and position the end-stop screw.
NOTE: The two holes at the top of the actuator
are NOT for use in direct-coupled
applications. (They are for remote
mounting, such as with the optional
HLO-4001 Crank Arm Kit.) For mounting
to valves, see the appropriate valve
installation guide.
Gear
Disengagement
Lever
HMO-4002
Non-Rotation
Bracket
Mounting
Surface
1.625
(41.3)
6.000
(152.4)
3.406
(86.5)
Adjustable
Stop
° Rotation
Indicators
1.563
(39.7)
2.812
(71.4)
Gear
Disengagement
Lever
Removeable Conduit Fitting with
(2)1/2" NPS Threaded Holes (for
use with flexible conduit only)
HMO-4001 Non-Rotation “T”
Bracket included with MEP-4901
HMO-4002 Non-Rotation
Bracket included with
MEP-4201& MEP-4501
MEP-4201/4501/4901 2 Installation Guide
Power/Signal
Terminal Block
(Under Conduit Fitting)
Selector
Switches Illustration 5—Tri-State Floating Point Control
Illustration 3—Two-Position Control (3-Wire), CCW Leg
Illustration 4—Two-Position Control (3-Wire), CW Leg
Wiring
To wire the actuator:
1. Loosen the screw on the conduit ing and lift up
to remove the ing.
2. Using a utility knife or drill, cut the hole plug
to accept wiring or replace the plug with an
application-specic ing.
NOTE: The hole plugs (or similar ings) protect
internal components from debris. To
guarantee an IP54 rating, install an HMO-
4521 cord grip or HPO-4051 cable kit.
3. Thread wires through the plugged opening and
connect to the terminal block according to the
relevant application. (See Illustrations 3 through
5.) Adjust the selector switch as needed.
4. Reinstall the conduit ing and tighten the screw.
Illustration 2—Wiring Compartment
© 2017 KMC Controls, Inc. 039-019-02D
KMC Controls, Inc.
19476 Industrial Drive
New Paris, IN 46553
574.831.5250
www.kmccontrols.com; [email protected]
Maintenance
No routine maintenance is required. Careful
installation will ensure long term reliability and
performance.
More Information
–Power Supply
24VAC/VDC
CW
CCW
T
COM
~/+
–
Switch Position
1 2
–Power Supply
24VAC/VDC
Contact Position:
Closed = CCW Rotation
CW
CCW
T
COM
~/+
Open = CW Rotation
Switch Position
1 2
–Power Supply
24VAC/VDC
Contact Position:
Closed = CW Rotation
CW
CCW
T
COM
~/+
Open = CCW Rotation
Switch Position
1 2
Important Notices
The material in this document is for information
purposes only. The contents and the product it
describes are subject to change without notice.
KMC Controls, Inc. makes no representations or
warranties with respect to this document. In no event
shall KMC Controls, Inc. be liable for any damages,
direct or incidental, arising out of or related to the
use of this document.
For models, specications, and
additional information, see
the MEP-4201/4501/4901 Series
Data Sheet on the KMC web
site.
For accessories, troubleshoot-
ing, torque selection, links to
sample applications, and other
information, see the MEP-4xxx
Applications Guide on the
KMC web site.