Résumé du contenu de la page N° 1
Honeywell
M9484 AND M9494 MODUTROL MOTORS ARE LOW
VOLTAGE, REVERSING PROPORTIONAL CONTROL
ACTUATORS FOR VALVES, DAMPERS AND AUXIL-
IARY EQUIPMENT. THEY ARE ESPECIALLY DE-
SIGNED FORCOMMERCIALOR
GAS BURNER CONTROL SYSTEMS.
�i Replace M941 motors.
0 Oil immersed motor and gear train for reliable per-
formance and long life.
0 W iring box provides NEMA 3 weather protection.
0 Actuator motor and circuitry operate from 24 volts
AC. Models available with factory installed transformer,
or internal tra
Résumé du contenu de la page N° 2
STANDARD MODELS ELECTRICAL RATINGS: VOLTAGE POWER CURRENT control T TTLix DRAW (A) TfON (W) 94 is Series 90 D: is adjustable stroke (90° 60°) 24 0.8 18 Without ~~ I Power Rating No auxiliary switches 8 is high torque E: is adjustable stroke 23 W ith internal 120 0.24 (90° 60°) standard timing 23 208 0.14 9 is high torque F: is adjustable stroke 300 (90° 60°) 240 0.12 23 2 or 4 min timing 2 auxiliary switches Output Drive 4 is dual-ended shaft, non-spring return of shaft changes with adjustm
Résumé du contenu de la page N° 3
AUXILIARY SWITCH RATINGS (amperes): terfly valve. Requires adapter bracket packed with M94XXE motor. M94XXF Potentiometer-Limits minimum position of motor. ONE CONTACT a 120v 240v Q68 Dual Control Potentiometer-Controls 1 through 9 additional motors. Full Load Q181 Auxiliary Potentiometer-Controls 1 or 2 addi- Locked Rotor tional motors. 221455A Motor Crank Arm-Infinitely adjustable crank VA pilot duty, 1201240 on opposite contact. arm. Approximately 0.75 inches shorter than the 4074ELY c
Résumé du contenu de la page N° 4
5.37 ADAPTER BRACKET FIG. 1-UIMtNSIUNS IN In. NOTE: M9481, M9491 do not have auxiliary shaft. All other dimensions are the same. LOCATION connectors with wiring box to provide NEMA 3 weather protection. install the Modutrol motor in any location except where acid fumes or other deteriorating vapors might attack the metal parts, or in atmospheres of escaping gas or the Always install motors with the crankshaft horizontal. explosive excessive salt environments, mount- Mounting flanges extending
Résumé du contenu de la page N° 5
ADAPTER BRACKET The220738A Adaptor Bracket, positioned between the motor and the equipment, raises the shaft height M9484 motor by 0.75 inch to match that of the M941 motor. This is required on all valve linkage applications, damper linkage applications (either to provide clearance or to allow the damper linkage to reach the shaft). To mount the motor with the bracket: 1. Mount the bracket to the equipment with existing or standard bolts. 2. Mount the motor to the bracket using the bolts pro-
Résumé du contenu de la page N° 6
Y BOLTS PROVIDED (4) WIRING BOX MACHINE SCREWS OR BOLTS. LTS SECURING BRACKET TO LINKAGE. M TIGHTEN AFTER SECURING MOTOR TO THE BRACKET USING FOUR BOLTS PROVIDED. FIG. 4-MOTOR MOUNTING ON VALVE LINKAGE,. Figs. 5 and 6 show internal schematics. 4. Do not exceed the motor ratings in any installation. The motor terminals are quick-connects located on top 5 . Do not turn motor shaft manually or with a this will damage the motor. adapter is standard on all Trade models and also may be added to all
Résumé du contenu de la page N° 7
A A BLUE LEAD YELLOW LEAD I CLOSE LIMIT 1 A 2 1 WIRING SHOULD BE NEC CLASS 1 UNLESS POWER SUPPLY n MEETS CLASS 2 REQUIREMENTS. TAPE UNUSED LEADS. MAKE CERTAIN THE CURRENT DRAW OF THE EXTERNAL CIRCUIT IS LESS THAN CONTACT RATING OF SWITCH. 2 ON TWO-SWITCH MOTORS SECOND SWITCH HAS BLACK n LEADS WITH BLUE, YELLOW. AND RED TRACERS. M 254 DIR ECTION OF MOTOR TRAVEL AS VIEWED FROM POWER E ND. & CONNECT 24V POWER TO Tl-T2 TERMINALS ONLY. DO NOT CONNECT POWER SUPPLY TO CONTROLLER TERMINALS. PROVIDE DIS
Résumé du contenu de la page N° 8
AUXILIARY SWITC H CONNECTIONS The has 2 internal auxiliary switches which may be used to prove low fire and high fire positions. 1 . To prov e low fire use red (common) and yellow wires connected to outer (left) switch. This switch makes red to supplies to de-energize the yellow and breaks red to blue as motor closes. 2 . Wires connected to the inner (right) switch are black with colored tracers. To prove high fire, use red tracer (common) and blue tracer wires. The right switch makes red trace
Résumé du contenu de la page N° 9
MOVE SCREWDRIVER AT TOP ONLY TO ADJUST CAM: l/8 IN. OUTER STROKE OUTER CAM ADJUST CAMS RY SWITCH CAMS 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND A OVERLOAD PROTECTION AS REQUIRED. 2 TRANSFORMER MAY BE EXTERNAL OR INTERNAL. NOTE: CAMS ARE OFFSET M A PROVIDE BETTER VIEW OF BACK CAM. FIG. 8-STROKE ADJUSTMENT SETUP. l/8 IN. STRAIGHT-BLADE STROKE ADJUST CAMS (YELLOW) INNER AUXILIARY CAM (BLUE) OUTER AUXILIARY CAM (RED) 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND A OVERLOAD PROTECTION AS REOUIRED
Résumé du contenu de la page N° 10
IMPORTANT Switching action and color coding are shown in Tables 1 and 2 on page 8. Set cams by moving top of screwdriver only. Press- Motors with factory added auxiliary switches are ing screwdriver against sides of cam slots could shipped in the closed position (counterclockwise f i , cause damage to motor end switches. as viewed from power end) with auxiliary cams set to actuate switches 30” from the closed position, and to 4. Insert l/ 8 in. screwdriver blade into slot on outer provide diffe
Résumé du contenu de la page N° 11
SERIES 99 CONTROLLER MOTOR OPTIONAL CONNECTIONS WITH 2-135 OHM POTENTIOMETERS IN SERIES. SERIES 90 CONTROLLER MOTOR - SERIES 90 HIGH 1 SUPPLY. PROVlDE DISCONNECT MEANS AND OVERLOAD n LIMIT CONTROL PROTECTION AS REQUIRED. TRANSFORMER 2 TRANSFORMER MAY BE INTERNAL OR EXTERNAL TO MOTOR. n EJ74C 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AN,, OVERLOAD n PROTECTION AS REQUIRED. 2 TRANSFORMER MAY BE INTERNAL OR EXTERNALTO MOTOR. n E2rM4 IG. 1 l-MOTOR USED WITH ASERIESSO CONTROI LER AND A SERIES 90 LOW O
Résumé du contenu de la page N° 12
RESISTOR SELECTION CHART FOR CHECKOUT 4-20 After installation and linkage adjustment, check the entire motor and control hookup to ensure that- OUTPUT * The motor operates the damper or valve properly. VOLTAGE l The motor responds properly to the controller. REQUIRED RESISTOR (A) MOTORS (Vdc)b (Ohms) Part No. 1 1.7 237 should not extend more 2 2.0 150 802139BFAA than a few inches past the ball joints. Check to see that there is adequate clearance for the linkage to move : 2.3 2.7 124 113 8021
