KMC Controls MEP-4 Series Application Manual Download

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MEP-4xxx Direct-Coupled Actuators (40 to 90 in-lb.)

Applications Guide, AN0513A Rev. J

Applications Guide

MEP-4xxx

Direct-Coupled Actuators (40 to 90 in-lb.)

Contents

Introduction .................................................................................................................................... 3

Important Notices........................................................................................................................... 3

Actuator Torque Selection ............................................................................................................... 4

Heat/Cool/VAV Applications (with the CTE-5202 Thermostat) ....................................................... 4

Accessories ..................................................................................................................................... 5

Ball Joint and Crank Arms ............................................................................................................ 5

Enclosure, Cord Grip, and Wiring Kits ......................................................................................... 6

Mounting (Non-Rotation) Brackets .............................................................................................. 7

Thermostat .................................................................................................................................. 7

Transformers ................................................................................................................................ 7

VEB-4x Series Valves Mounting/Repair Kits ................................................................................. 8

Troubleshooting .............................................................................................................................. 9

Auxiliary Switch Does Not Work ................................................................................................. 9

Fail-Safe Does Not Work .............................................................................................................. 9

Feedback Does Not Work ............................................................................................................ 9

No Rotation ................................................................................................................................. 9

Summary of Contents for MEP-4 Series

Page 1: ...ces 3 Actuator Torque Selection 4 Heat Cool VAV Applications with the CTE 5202 Thermostat 4 Accessories 5 Ball Joint and Crank Arms 5 Enclosure Cord Grip and Wiring Kits 6 Mounting Non Rotation Brackets 7 Thermostat 7 Transformers 7 VEB 4x Series Valves Mounting Repair Kits 8 Troubleshooting 9 Auxiliary Switch Does Not Work 9 Fail Safe Does Not Work 9 Feedback Does Not Work 9 No Rotation 9 ...

Page 2: ...Range Is Wrong 9 Configuration 10 Proportional MEP 4xx2 Models Setup 10 Wiring Issues 10 Two Position Wiring MEP 4001 3 4 5 11 Tri State 2 Position Rotation Direction 11 Auxiliary Switch MEP 4x2x 4x7x 12 Fail Safe Direction MEP 42 45 49xx 13 Index 13 Specifications design and operation are subject to change without notice ...

Page 3: ...series Also any particular MEP 4xxx model may not have one or more features e g fail safe auxiliary switch described in this document Use only the information from this document that is relevant to the MEP 4xxx model in use Important Notices The KMC logo is a registered trademark of KMC Controls Inc All rights reserved No part of this publication may be reproduced transmitted tran scribed stored i...

Page 4: ...ications Guide For an example of a fail safe application on an outside air damper see Fail Safe Direction MEP 42 45 49xx on page 13 T T AI1 AO1 AO2 CTE 5202 Thermostat 24 VAC Phase Neutral 24 VAC Common Input Cooling Valve 24 VAC Common Input Heating Valve T T AI1 AO1 AO2 CTE 5202 Thermostat 24 VAC 5 VA Phase Neutral 5K 10K Ohm Resistor between AI1 and Common for Heating Mode Only NC SPST Relay Ov...

Page 5: ...attaching to dampers or other shafts and they can be used in conjunc tion with the HLO 4001 crank arm kit In the VTD 1403 1404 short crank arms an attached ball joint see the VTD 0804 can be adjusted from 3 4 inches minimum to 2 7 8 inches maximum from the cen ter of the shaft In VTD 1405 1406 long crank arms the maximum is 4 5 8 inches VTD 1403 Short slotted for 3 8 shafts VTD 1404 Short slotted ...

Page 6: ...PO 4001 assembled wiring kit has an HMO 4521 liquid tight cord grip a 3 foot plenum rated cable conduit fitting and a pre wired terminal block for the following actuators MEP 4001 MEP 4002 MEP 4801 MEP 4802 NOTE It is not compatible with the MEP 40x3 MEP 402x MEP 4813 and MEP 482x actuators However the HMO 4521 cord grip can be installed on those models except for the MEP 4003 to provide IP54 rate...

Page 7: ... actua tor It is provided with MEP 427x 457x 49xx actuators The HMO 4004 non rotation bracket kit is used for mounting to ball valves Non Rotation T Bracket HMO 4001 Order Separately 9 229 3 4 19 Non Rotation Bracket HMO 4002 Provided 9 229 mm 3 4 19 mm An XEE 6000 series Class 2 transformer provides 24 VAC power to the actuator XEE 6111 050 120 to 24 VAC 50 VA single hub XEE 6112 050 120 to 24 VA...

Page 8: ...ctuator must be ordered separately Handle Shaft High Low Screws Cover Sub Shaft Thermal Break Machine Screws Plate Mount Non Rotation Bracket Screw The HPO 5074 kit is for adapting valve bodies for use with only quick mounting MEP 4xxxV actu ators MEP 4xxxV actuators have an attached handle and shaft as well as a plastic mounting bracket on the bottom of the actuator See the relevant data sheet fo...

Page 9: ...ortional MEP 4xx2 Models Setup on page 10 and Tri State 2 Position Rotation Direction on page 11 Check that the shaft moves freely Press and hold the gear disengagement lever and manually rotate the shaft Check for a tripped circuit breaker to the trans former or power supply Check polarity and strength of input signal Check for proper supply voltage from the trans former or power supply and that ...

Page 10: ...ns Allow plenty of cushion in measurements A meter may be too slow to register tran sient dips or peaks during startup Configuration Proportional MEP 4xx2 Models Setup NOTE Before Jan 2014 MEP 40x2 48x2 proportional models had 0 10 VDC inputs and 0 5 or 0 10 VDC feedback only From 2014 through July 2015 they had 2 10 VDC inputs and 1 5 or 2 10 VDC only feedback instead Starting in August 2015 all ...

Page 11: ...odels have selector switches to the left of the terminal block See the MEP 4200 4500 4900 Se ries Installation Guide or MEP 4201 4501 4901 Installation Guide for more information FS MEP 4x51 Two Position Control CW Leg Four Wire Power Supply 24 VAC VDC Contact Position Closed CW Rotation CW CCW T COM 24 V Open CCW Rotation Switch Position 1 2 Fail Safe MEP 4xx4 Two Position 24 VAC VDC Two Wire Pow...

Page 12: ... Red connects to Blue from 45 to 90 As the actuator rotates the switch dial arrow points to the current switch position Red connected to Blue vs Red connected to Black 3 Wire the desired auxiliary device s to the cable Method 2 Setting where Rotation Trips 1 While pressing the gear disengagement lever rotate the actuator to the point where the auxiliary switch should trip 2 Using a small flat bade...

Page 13: ... 4004 7 HMO 4521 6 HPO 4001 6 HPO 4051 6 HPO 5073 8 HPO 5074 8 I Important Notices 3 Inputs 10 Fail Safe Direction Switch Dial Fail Safe Direction MEP 42 45 49xx NOTE After initial connection or reconnection to power on MEP 42x2 45x2 49x2 proportional models proper fail safe operation might be delayed up to 30 seconds until the capacitors are fully charged OAD 24 VAC Fail Safe MEP 4xxx BAS All fai...

Page 14: ...x 12 MEP 4042 3 MEP 4101 3 MEP 4842 3 Mounting 7 8 N Non Rotation Brackets 7 O OAD Outside Air Damper 13 P Proportional 9 10 Q Quick Mount MEP 4xxxV 8 R Rotation 9 11 12 S Stroke Range 9 Support Files 3 Switches Auxiliary 9 12 Fail Safe Direction 9 13 Feedback Voltage 9 Rotation Direction 9 11 T Thermostat 7 Torque Selection 4 Transformers 7 Tri State Two Position 11 Troubleshooting 9 Two Position...

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