Honeywell ML6275 manual

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Table of contents for the manual

  • Page 1

    Copyright © 1995 Honeywell Inc. • All Rights Reserved ML6275 Spring Return Direct Coupled Rotary Actuator FEA TURES • Mounts directly on horizontal 3/8 in., 1/2 in., and 5/8 in. round and square damper shafts by using the appropriate insert. Most models are shipped with 1/2 in. inser t. •P ro vides 25 lb-in. running and spring return tor que[...]

  • Page 2

    63-2493—1 2 ML6275 SPRING RETURN DIRECT COUPLED RO T AR Y ACTU A T OR SPECIFICA TIONS Models ML6275: Spring Retur n Direct Coupled Rotar y Actuators ML6275A: Low T orque (25 lb-in.) Direct Coupled Rotar y Actuator without auxiliary switches or time-out function ML6275C: Low T orque (25 lb-in.) Direct Coupled Rotar y Actuator with two line v oltag[...]

  • Page 3

    63-2493—1 3 ML6275 SPRING RETURN DIRECT COUPLED RO T AR Y ACTUA T OR M8257 135 o ± 15 o 1-3/32 (28) 1-13/32 (36) 5/16 (8) 13/32 (10) 10-13/32 (264) 3/4 (19) 1-5/8 (41) 1-13/32 (36) 4-13/32 (112) 3/8 (10) CLEARANCE REQUIRED FOR SPLINED HUB MOUNTING 1-5/32 (29) 3-1/2 (89) 13/64 (5) MOUNTING BRACKET 1/2 (13) 1-9/32 (32) 3-15/16 (100) 23/32 (18) 8-9[...]

  • Page 4

    63-2493—1 4 ML6275 SPRING RETURN DIRECT COUPLED RO T AR Y ACTU A T OR INST ALLA TION When Installing this Product…  Read instructions carefully . F ailure to f ollow them could damage the product or cause a hazardous condition.  Check r atings and description given in the specifications to make sure the product is suitab le for y our appl[...]

  • Page 5

    63-2493—1 5 ML6275 SPRING RETURN DIRECT COUPLED RO T AR Y ACTUA T OR Installing the Actuator for Three-Point Mounting The ML6275 Direct Coupled Actuator is designed with remov able hub slee ves to accommodate specific damper shaft sizes . Proper sleev e selection is necessar y when three- point mounting is used to av oid excessiv e strain on the [...]

  • Page 6

    63-2493—1 6 ML6275 SPRING RETURN DIRECT COUPLED RO T AR Y ACTU A T OR Fig. 4. ML6275 Actuator mounted f or countercloc kwise spring rotation with output hub inside actuator . (NO TE: NEMA rating applies only with damper shaft in horizontal position.) 3 0 3 0 0 6 0 6 0 9 0 M7230A INDICATOR DETENTS 1 1 COUNTERCLOCKWISE SPRING ROTATION ARROW[...]

  • Page 7

    63-2493—1 7 ML6275 SPRING RETURN DIRECT COUPLED RO T AR Y ACTUA T OR Fig. 5. Standar d direct coupled mounting of ML6275 to a damper with countercloc kwise spring rotation. .500 .500 3 0 3 0 6 0 6 0 9 0 M7229[...]

  • Page 8

    63-2493—1 8 ML6275 SPRING RETURN DIRECT COUPLED RO T AR Y ACTU A T OR W iring CA UTION Disconnect power supply bef ore wiring to prev ent electrical shock or equipment damage. All wiring must comply with local electrical codes, ordinances and regulations. The ML6275 is designed f or use with a Class 2 pow er supply . V oltage and frequency of the[...]

  • Page 9

    63-2493—1 9 ML6275 SPRING RETURN DIRECT COUPLED RO T AR Y ACTUA T OR OPERA TION The ML6275 Direct Coupled Actuator is designed to be used in ventilating and air conditioning installations to oper ate dampers, v entilation flaps and louvers requiring up to 25 lb-in. torque. If the power f ails, the actuator will spring return to the star ting posi[...]

  • Page 10

    63-2493—1 10 ML6275 SPRING RETURN DIRECT COUPLED RO T AR Y ACTU A T OR 30 30 60 60 90 0 0 30 30 60 60 90 0 0 30 30 60 60 90 0 0 30 30 60 60 90 0 0 FULLY COUNTERCLOCKWISE SPRING RETURN INDICATOR START POSITIONS FULLY CLOCKWISE SPRING RETURN INDICATOR START POSITIONS DRIVE CLOCKWISE TO CLOSE (REVERSE ACTING) DRIVE COUNTERCLOCKWISE TO CLOSE (REVERSE[...]

  • Page 11

    63-2493—1 11 ML6275 SPRING RETURN DIRECT COUPLED RO T AR Y ACTUA T OR CHECKOUT The ML6275 Direct Coupled Actuator can be chec ked out either directly or by using a controller . Important When power is interrupted, the actuator returns to the normal star ting position using the spr ing mechanism. When power is restored, the controller input will n[...]

  • Page 12

    63-2493—1 12 ML6275 SPRING RETURN DIRECT COUPLED RO T AR Y ACTU A T OR Helping You Control Your World Home and Building Control Honeywell Limited-Honeywell Limitée 740 Ellesmere Road Scarborough, Ontario M1P 2V9 Home and Building Control Honeywell Inc. 1985 Douglas Drive North Golden Valley, MN 55422 63-2493—1 G.R. Rev . 11-95 Pr inted in U .S[...]