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PRO-LJ and PRO-LH medium duty jackshaft operators are designed for commercial high lift, vertical lift, rolling doors and 
rolling grilles provided that doors are driven by a drive shaft with low duty cycles. Model PRO-LH is essentially the same as 

model PRO-LJ with the exception that the PRO-LH operator incorporates a chain hoist for manual operation of the door.  
 

STANDARD OPERATOR WEIGHT

45-50 LBS  

  

MOTOR

: Intermittent duty 1000 RPM motor with high starting torque. 

- Thermally protected by a built-in thermostat that cuts power to the motor and control circuit when overheating.  
- Horsepower: 1/2HP 

- Voltage: 115V  1-phase (60Hz)         220V 1-phase (50Hz) 

    

 

 

   230V  1-phase (60Hz)         380V 3-phase (50Hz) 

 

 
 

 

 

REDUCTION

:   Primary: (4L) V-belt and pulleys (1.5” to 7” diameter), Secondary: #41 chain and sprockets 

 

OUTPUT SHAFT SPEED

: 58 RPM

  

 

 

BRAKE

 : Solenoid actuated drum and brake shoe braking system to prevent coasting and maintain door position. 

 

WIRING TYPE (3 OPTIONS)

Option 1: 

Limited Duty logic board Smart 5.0 (UL325 (2010) compliant)

. Note: Micanan compatible primary entrapment  

device must be connected for B2 or TS (momentary or timer activation on close) feature. 

Option 2: 

Relay logic controls with Interface Module (UL325 (2010) compliant

). C2 Standard factory wiring (constant  

pressure on close, momentary contact on open and stop). If momentary contact on close (B2) wiring is desired, connect 
loose “purple” wire to terminal #5. Note: Micanan compatible primary entrapment device must be connected for B2 

(momentary activation on close) feature. 

Option 3: 

Standard relay logic controls (not UL325 (2010 compliant, not available in US) 

C-2 Wiring constant  

pressure on 

close, momentary contact on open and stop. NOTE: If momentary contact on close (B2) wiring is desired, 

connect 

 loose “purple” wire to terminal #5. 

 

TRANSFORMER

: 24VAC control circuit, supplies power to drive control relays with 15VA power available for external  

devices. 

 

LIMIT ADJUSTMENT

: 4 micro switches that control door travel. These limit switches are activated by fully adjustable screw  

type cams.  

 

EMERGENCY DISCONNECT

: Floor level cable disconnect system with electrical cut-out feature allows person to manually  

operate the door by hand (PRO-LJ) or by chain hoist (PRO-LH) in case of emergency. 

 

CLUTCH

: Adjustable friction clutch to minimize damage to door operator, door or vehicles when obstruction occurs. 

 

OPERATOR DIMENSIONS

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

PRO-LJ, PRO-LH SPECIFICATIONS 

IMPORTANT NOTE 

THIS MEDIUM DUTY OPERATOR IS DESIGNED TO OPERATE 

A MAXIMUM OF 15 COMPLETE CYCLES PER HOUR. 

Summary of Contents for PRO-LH

Page 1: ...For more information please visit www devancocanada com or call toll free at 855 931 3334...

Page 2: ......

Page 3: ...e chain package 4 1 2m c w 41 connecting link 1 x Drive Sprocket 41B12 x 1 c w 2 set screws and x 1 1 4 keyway 1 x Door Sprocket 41B32 x 1 c w 2 set screws and x 1 1 4 keyway Note Sprocket size and bo...

Page 4: ...Relay logic controls with Interface Module UL325 2010 compliant C2 Standard factory wiring constant pressure on close momentary contact on open and stop If momentary contact on close B2 wiring is des...

Page 5: ...the door system READ AND FOLLOW ALL INSTALLATION INSTRUCTIONS Commercial door operators are never to be installed on a residential installation Install only on a properly operating and balanced door A...

Page 6: ...erator which incorporates a chain hoist mechanism the handing of the operator must be stated at time of order Depending on installation if handing of chain hoist is not correct the hand chain may hang...

Page 7: ...ighten bolts 5 Place door sprocket on door shaft and align with operator drive sprocket but do not insert keyway or set screws 6 If an optional chain spreader has been ordered with your operator insta...

Page 8: ...and cut excess chain links if required Attach keyring to end of disconnect chain 12 If an optional floor level disconnect lever was ordered in lieu of the chain keeper mount to wall with suitable hard...

Page 9: ...box or generic drawings MSLLHR WW or MSLLHR220 WW in the electrical drawings section at the end of this manual Refer to electrical diagrams inside control box cover or at the end of this manual prior...

Page 10: ...all moving parts of door or hardware Install Entrapment warning sign next to control station Connect 3 button open close stop push button station to terminals 2 3 4 and 5 Refer to electrical diagram...

Page 11: ...these two terminals 3 Radio control receiver Wire standard radio receiver to separate radio strip on side of control box or to terminals 7 8 and 9 on control terminal strip inside control box 4 Singl...

Page 12: ...made and push button station is connected manually move the door to mid position Press Close button for several seconds and then press stop button If door did not move in correct direction or if limit...

Page 13: ...d and fully open oppositions and set limit cams to correct position See Limit adjustment section C further in this manual for complete detail on the end of travel limit adjustments 5 Activate Interfac...

Page 14: ...resistor that is factory installed across terminals S1 and S2 unless installing a 4 wire electric edge 4 wire electric edge Connection A standard 4 wire electric edge can be connected across S1 and S2...

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Page 19: ...n limit cam away from Open limit switch to increase door travel or spin Open limit cam towards the Open limit switch to decrease door travel After each adjustment ensure that cam plate fully engages i...

Page 20: ...to door operator to prevent unintended operation and have the door full open or close 4 Do not reconnect power to the door or gate operator until instructed to do so 5 Only install photobeams on a pr...

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Page 22: ...Aligning the photo beams 1 Turn the power on to the operator If the transmitter and receiver are installed properly the lights on both the transmitter red L E D and receiver green L E D will be ON 2...

Page 23: ...s on the logic board or interface module if applicable as shown in Fig 4 Use minimum 18 gauge wires and secure the wires to wall or ceiling 5 Turn the power on to the operator Align transmitter and re...

Page 24: ...act with brake drum with sufficient brake spring tension to stop and maintain door when solenoid is de energized When solenoid is energized brake shoes should release from drum with sufficient clearan...

Page 25: ...lever downwards and lock in place by bending lever around bracket lip as shown 3 For PRO LJ operators Move door manually To return to electrical operation release disconnect chain and allow to return...

Page 26: ...motor solenoid and operator runs smoothly and quietly Every 6 months 1 Verify tightness of all fasteners and set screws 2 Verify that operator is properly secured 3 Inspect manual disconnect 4 Verify...

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Page 39: ...PARTS DEVANCO CANADA 19192 HAY ROAD UNIT Q SUMMERSTOWN ON K0C 2E0 TOLL FREE 855 931 3334 www devancocanada com WHEN ORDERING REPAIR PARTS PLEASE SUPPLY THE FOLLOWING INFORMATION 3 PART NUMBER 3 DESCRI...

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