User Guide

ManualsBrandsBarber Colman ManualsDampers2 Position Actuator w/ Auxiliary Switch (120V)

Printed in U.S.A. 4-02 F-06491-25

Invensys Energy Solutions

Building Systems - Americas

1354 Clifford Avenue

P.O. Box 2940

Loves Park, IL 61132-2940

www.invensysibs.com

Application

For two-position operation of dampers, valves, and

other equipment which require the return to normal

position upon power interruption.

Features

• Compatible with most SPST control devices

• Spring return

• 24, 120, 208, and 240 Vac models

• Actuators with part number suffix "-500" are

equipped with SPDT auxiliary switch

• Rugged die cast aluminum with two 1/2” conduit

openings

• Oil immersed motor and gear train

Applicable Literature

• Invensys Building Systems Cross-Reference Guide,

F-26789

• Invensys Building Systems Catalog, F-25683

• AV-390 Series, Valve Linkage for Gear Train

Actuators General Instructions, F-24376.

• Material Safety Data Sheet (MSDS) for BCS-51-168

Oil (Until Feb. 1989)

• Material Safety Data Sheet (MSDS) for BCS-51-185

Oil (Until March 2002) (MAx-3xx-x-x-3 and

MAx-4xx-x-x-3)

• Material Safety Data Sheet (MSDS) for

BCS-51-185-1 Oil (Current) (MAx-3xx-x-x-4 and

MAx-4xx-x-x-4)

• High Temperature Exposure Performance

(UL 555S) MAx-31x-x-x-4, MAx-41x-x-x-4 Series

Actuators Engineering Information EN-216, F-27068

MAx-305 & MAx-318 Series

MAx-405 thru MAx-419 Series

Oil Submerged Actuators, Two-Position

General Instructions

MA6-3XX, MA6-4XX, MA7-4XX,

MA8-3XX, MA8-4XX

(Hazardous Locations)

MA-3XX, MA5-318,

MA-4XX, MA5-419

(Standard)

Summary of content (12 pages)

PAGE 1
Invensys Energy Solutions Building Systems - Americas 1354 Clifford Avenue P.O. Box 2940 Loves Park, IL 61132-2940 www.invensysibs.com MAx-305 & MAx-318 Series MAx-405 thru MAx-419 Series Oil Submerged Actuators, Two-Position General Instructions Application For two-position operation of dampers, valves, and other equipment which require the return to normal position upon power interruption.
PAGE 2
SPECIFICATIONS Actuator Inputs Connections: Coded screw terminals. Control Circuit: Two-wire. Power Input: See Table-1. Actuator Outputs Torque: See Table-1. Shaft Rotation: MA-305, MA-405, MA6-305, MA6-405, CW 180° when power is applied. MA-318, MA-41x, MAx-318, MAx-41x, CW 170° when power is applied. Spring Return: CCW to the original position when the actuator is de-energized. Auxiliary Switch (-500 Models): SPDT makes (or breaks) the circuit at the powered end of stroke.
PAGE 3
Table-2 Actuator Part Numbers for Hazardous Location Applications.
PAGE 4
TYPICAL APPLICATIONS (wiring diagrams) L1 or H Thermostat or Switch 1 MA-305 MA-405 Series Actuator Motor Field Coil L2 or G 2 NC COM NO 1 Actuator rotates 180° CW when thermostat or switch contacts are closed. Actuator spring returns when thermostat or switch contacts are open. 2 Aux. Switch for -500 Models Figure-1 Typical Wiring for MA-305 and MA-405 Series.
PAGE 5
Warning: • Disconnect the power supply (line power) before installation to prevent electrical shock and equipment damage. • Make all connections in accordance with the wiring diagram and in accordance with national and local electrical codes. Use copper conductors only. Caution: • Do not apply power to the unit unless the damper linkage and/or the valve assembly have been installed.
PAGE 6
Install Connector at End of Slot on Crank Arm 90° Driven Shaft 0° Actuator Shaft 180° Install Connector at Prick-Point on Crank Arm 0° Figure-4 180° Actuator Rotation Driving a Damper Rotation of 90°. 4. Install a linkage connector onto the driven shaft crank arm, at the end of the slot. Refer to Figure-4. 5. Install the damper rod in the linkage connectors on both crank arms and tighten the linkage connector screws finger-tight.
PAGE 7
Valves Note: When mounting an actuator onto a valve, observe the following: • Allow 3” (76 mm) of clearance above the assembled actuator and valve for the removal and reattachment of the actuator. • Always install single-seat valves with pressure under the seat. • Install all two-way valves so that they close against the flow. A tag or an arrow on the valve body indicates proper flow direction. • Always install three-way mixing valves with two inlets and one outlet.
PAGE 8
Actuator 2 Nylon Bushing "C" Ring Plunger Assembly Front Cover Plunger Cam Indicator Mounting Bracket 1 Indicator Screw Stem Extension 1 Connecting Pin Cover Screws (2) Mounting Screws (3) 3 Stem Locknut 1 Mounting bracket NYBA-61 and stem extension NYBA-37 must be used with linkage kit AV-391 when mounting actuators assembled in the hazardous location housing. 2 Not included in the AV-391 Linkage Kit.
PAGE 9
Refer to Table-3 for the selection of the proper gage wire versus the length of the wire run. Table-3 Power Wire Selection. Actuator Series MA-305 MA-405 MA-318 MA-416, MA-418, MA-419 Wire Size AWG Maximum Run a b ft (m) 14 122 (37) 12 191 (58) 10 305 (93) 14 2800 (853) 14 44 (13) 12 68 (21) 10 110 (34) 14 950 (290) 12 1580 (482) a Each run has two wires. b The length given is for a maximum two-wire run, for one actuator.
PAGE 10
MAINTENANCE Caution: MA-300 series and MA-400 series actuators that are used in applications where they are energized for extended periods of time must be electrically cycled at least once every six months to ensure correct operation. Regular maintenance of the total system is recommended to assure sustained, optimum performance. FIELD REPAIR None. Replace an inoperative actuator with a functional unit. DIMENSIONAL DATA 15/16 (24) 4-3/4 (121) 4 (102) 1/2 (13) Dia.
PAGE 11
9-9/16 (243) 10-5/8 (270) 9 (229) 4-1/2 (114) 1/4 (6) 2-1/8 (54) 1/2 (13) Dia. Shaft 4-7/32 (107) 3/4 (19) Pipe Tap On Each Side 8-7/8 (225) 2-15/16 (51) 4-13/32 (112) 8-1/2 (216) 15/16 (24) 6-1/8 (156) 2-1/8 (54) 13/16 (21) 1/4-20 Threaded Hole (1 of 3) 3-1/16 (78) 2-1/4 (57) Dimensions are in inches (mm). 7-1/2 (190) 4-3/4 (121) 3-3/4 (95) 21/64 (8) Dia. Hole (1 of 3) Figure-10 Dimensions of MA6-3XX, MA6-4XX, and MA7-4XX Damper Actuators for Hazardous Locations.
PAGE 12
9 (229) 10-13/16 (275) 4-1/2 (114) 1/4 (6) 2-1/8 (54) 1/8 (3) 8-7/8 (225) 6-1/8 (156) 3/4 (19) Pipe Tap On Each Side 2-15/16 (51) 4-13/32 (112) Dimensions are in inches (mm). 4-1/4 (108) 8-1/2 (216) Figure-11 Dimensions of MA7-4XX, MA8-3XX, and MA8-4XX Valve Actuators for Hazardous Locations. Invensys is the trademark of Invensys plc and its subsidiaries and affilities. F-06491-25 Specifications may change as design improvements are introduced. Printed in U.S.A.