Warranty NICE NORTH AMERICA warrants that materials and workmanship are free from defects for a period of four (4) years or 50,000 cycles, whichever comes first. The start of the warranty will be determined by the date of invoice. Materials returned to Nice deemed defective after examination will be returned at the option of Nice with repaired, new, or re-manufactured parts.
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PLEASE CONTACT NICE AT 1-877-888-1116 . SAVE THESE INSTRUCTIONS . Upon delivery of your Nice medium-duty jackshaft door operator, please inspect the unit carefully for damage. Verify that operator horsepower, voltage, phase and amperage correspond to available power supply and door application. Check that along with your operator you have received the following standard hardware.
PRO-LHA medium duty jackshaft operators are designed for commercial sheet doors and rolling doors provided that these doors are driven by a drive shaft with low duty cycles. Model PRO-LHA operator incorporates a chain hoist for manual operation of the door.
Important Safety Instructions WARNING: To reduce the risk of injury or death: • READ AND FOLLOW ALL INSTRUCTIONS • Never allow children to operate or play with door controls. Keep the remote control (where provided) away from children. • Personnel should keep away from a door in motion and keep the moving door in sight until it is completely closed or opened. NO ONE SHOULD CROSS THE PATH OF A MOVING DOOR.
• The PRO-LHA operators have dual output shafts and may be mounted on left (standard) or right hand side of door. If handing of operator must be reversed, loosen set screws, remove drive sprocket and keyway and install on opposite side of drive shaft.
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3. As a general rule, the door operator should be installed below the drive shaft and as close to the door as possible. The ideal distance between the operator drive shaft and the door shaft is approximately 12” (30cm) to 15” (38cm). The operator may be wall/bench mounted or bracket/shelf mounted.
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11. Install chain keeper to wall near hand chain at approximately 4’ from floor. Run disconnect chain through keyhole of chain keeper 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 hardware. Attach both chains together using keyring provided.
Refer to electrical drawings inside your operator control box or generic drawings MSLLHR-WW or MSLLHR220-WW, in the electrical drawings section at the end of this manual. IMPORTANT • NICE HIGHLY RECOMMENDS THAT EACH INDIVIDUAL COMMERCIAL DOOR OPERATOR HAVE IT’S OWN DEDICATED POWER SUPPLY . • NICE HIGHLY RECOMMENDS THAT EACH INDIVIDUAL COMMERCIAL DOOR OPERATOR HAVE AN EXTERNAL CIRCUIT BREAKER OR FUSED DISCONNECT .
SECTION A: PRO-LHA Standard Relay Logic Controls (not UL325 (2010) Compliant, not available in US or Canada) Connection of Power Supply and Control Station POWER WIRING: Use 1-1/8” (2.85 cm) diameter holes for all power wiring. 1. Single phase: Connect single phase power supply to terminals L/L1 (line) and N/L2 on three-pole power terminal strip.
Connection of a Reversing Edge Device and Control Accessories 1. Reversing Edge device (must be normally open contact): NOTE: If the door is controlled by any device or wired in such a manner that the door is not controlled by constant pressure on close then an appropriate reversing edge must be installed.
Operator Electrical Connections and Start-up Instructions NOTE: THIS OPERATOR COMES WITH AN INTERFACE MODULE INTEGRATED INTO THE CONTROL CIRCUIT. THE PURPOSE OF THE INTERFACE MODULE IS TO ALLOW FOR FAILSAFE MONITORING OF A NICE COMPATIBLE SAFETY DEVICE AS PER UL 325 (2010) REQUIREMENTS.
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3-phase operators (1/2 HP 380V 50Hz): If door moves in wrong direction, turn off incoming power and reverse any two of the three incoming power supply leads to correct rotation. Press the open button and then activate the open limit to ensure door stops. If door does not stop, interchange grey and red wires on open and close limits.
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Primary monitored safety device: Nice monitored failsafe photo beams or Nice compatible monitored failsafe devices must be connected to terminals P1 and P2 if momentary close on pushbutton is required (B2 mode). If not connected, door can only be closed by constant pressure on close pushbutton.
SECTION C: PRO-LHA(E) Limited Duty Smart 5 .0 Logic Board NOTE: The operator is shipped from the factory in the C2 mode (constant pressure close and momentary open). The operator should remain in this mode until all connections and limit switch adjustments are completed.
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Primary monitored safety device Nice monitored failsafe photo beams or Nice compatible monitored failsafe devices must be connected to terminals Pl and P2 as primary monitored safety device. Primary monitored safety device must be connected if momentary activation on close is required in B2, T and TS modes.
4-wire electric edge: A standard 4-wire electric edge can be connected across Sl and S2 terminals as a secondary safety device. Remove the factory- installed resistor across terminals Sl and S2 when using a 4-wire electric edge. 10K OHM 4-WIRE EDGE REVERSING DEVICE...
C2 (Momentary open, constant pressure close): • Open Button: Momentary activation opens the door. When door is closing, momentary JUMPER activation reverses the door (OPEN OVERRIDE). • Close Button: Constant pressure on close. Door will stop when button is released •...
SECTION D: For all Operator Control Types Limit Switch Adjustment Adjustment of door travel is done by moving the limit cams on the threaded shaft. The position of the 4 limit switches are factory adjusted and should not be altered. The limit switches are: •...
For momentary activation on close, the Nice photobeams (or a Nice 2-wire monitored edge), must be installed as part of the operator system . If a Nice 2-wire monitored edge or the Nice infrared photobeam system is not installed (or not operating correctly), the operator will only operate in fault mode “constant pressure to close”...
OPERATOR RELAY LOGIC CONTROLS OPERATOR LOGIC BOARD WITH INTERFACE MODULE NICE N-4 Photocell (MK00650) NOTE: The MK00650 photocell system has a maximum range of 24 ft. Sun visor protector optional. Installation NOTE: Photo beams should be mounted as close to the door track inside the door to offer maximum entrapment protection.
Photo system operation: Nice photo beams must be connected for the door to close in momentary mode (unless a Nice monitored 2-wire edge is connected). When the photo system is properly installed and aligned, the infrared beam will detect any obstruction in the path of the beam. Upon detecting an obstruction, closing door will stop and reverse to full open.
FRABA N-4/4X Thru-Beam Photocell (MK00697) NOTE: The MK00697 photocell system has a maximum range of 45 ft. Sun Visor protector (optional). 1. Select a location on the wall no more than 6 inches from the floor to install wall mounting brackets on the left and right side of the door.
Clutch Adjustment 1. Remove cotter pin taped to pulley. 2. Rotate clutch nut counterclockwise (loosen) until there is insufficient tension to permit clutch to drive door. 3. Gradually tighten clutch nut until the tension on the spring is sufficient to permit clutch to drive door smoothly but will allow clutch to slip if door is obstructed.
Brake Adjustment (For LHAB only) The brake adjustment is factory set and should only require minor adjustment after extensive use. Verify brake adjustment by manually holding in solenoid plunger. When brake is properly adjusted, the brake shoe pads should make complete contact with brake drum with sufficient brake spring tension to stop and maintain door when solenoid is de- energized.
Emergency Manual Operation • The PRO-LHA operators are equipped with an emergency disconnect device with interlocked power cut-out switch to manually operate door in case of emergency. This feature should not be used to manually operate a malfunctioning door. WARNING TO REDUCE THE RISK OF INJURY OR DEATH: DO NOT ATTEMPT TO USE EMERGENCY DISCONNECT SYSTEM WHILE OPERATOR IS RUNNING .
Operator Maintenance WARNING TO REDUCE THE RISK OF INJURY OR DEATH: DO NOT ATTEMPT TO SERVICE THE OPERATOR UNLESS POWER SUPPLY HAS BEEN DISCONNECTED . • Inspect manual function of the door every 3 months. Make sure that door runs smoothly. If door does not manually open or close freely, have a qualified service person make repairs.
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