GT- Logic 4 Installation Manual
Page 1
... in C2 operating mode. An LED on Board Visit www.liftmaster.com to set number of cycles/months is reached or when the operator requires immediate service. The Logic 4 operator incorporates a self-diagnostic feature built into the (...MAS) Maintenance Alert System LED. Operators are shipped in your area. NOT FOR RESIDENTIAL USE 315MHz Radio Receiver Built on the 3-button station will signal when the set an internal Maintenance Cycle Counter. INSTALLATION MANUAL H, J, AND HJ T AND APT L 4 ogic L3 GH...
... in C2 operating mode. An LED on Board Visit www.liftmaster.com to set number of cycles/months is reached or when the operator requires immediate service. The Logic 4 operator incorporates a self-diagnostic feature built into the (...MAS) Maintenance Alert System LED. Operators are shipped in your area. NOT FOR RESIDENTIAL USE 315MHz Radio Receiver Built on the 3-button station will signal when the set an internal Maintenance Cycle Counter. INSTALLATION MANUAL H, J, AND HJ T AND APT L 4 ogic L3 GH...
GT- Logic 4 Installation Manual
Page 2
...INSTALLATION 16-17 Determine Mounting Location 16 Mounting 17 Install the Manual Disconnect 17 WIRING 18-19 Power and Ground 18 Control Station 19 ENTRAPMENT PROTECTION 20-22 LiftMaster Monitored Entrapment Protection (LMEP 20 Install the Photoelectric Sensors (Provided ... H, GH, J, and HJ 27 PROGRAMMING 28-35 Introduction to Order Repair Parts 36 TROUBLESHOOTING 37-40 Diagnostic Chart 37 Troubleshooting Guide 38 Troubleshooting Error Codes 39 Troubleshooting Radio Functionality 40 WIRING DIAGRAMS 41-42 Logic (Ver. 4.0) 1 Phase Wiring Diagram 41 Logic (Ver...
...INSTALLATION 16-17 Determine Mounting Location 16 Mounting 17 Install the Manual Disconnect 17 WIRING 18-19 Power and Ground 18 Control Station 19 ENTRAPMENT PROTECTION 20-22 LiftMaster Monitored Entrapment Protection (LMEP 20 Install the Photoelectric Sensors (Provided ... H, GH, J, and HJ 27 PROGRAMMING 28-35 Introduction to Order Repair Parts 36 TROUBLESHOOTING 37-40 Diagnostic Chart 37 Troubleshooting Guide 38 Troubleshooting Error Codes 39 Troubleshooting Radio Functionality 40 WIRING DIAGRAMS 41-42 Logic (Ver. 4.0) 1 Phase Wiring Diagram 41 Logic (Ver...
GT- Logic 4 Installation Manual
Page 23
...SEVERE INJURY or DEATH. 7. WARNING WARNING LIMIT ADJUSTMENT CAUTION 1 Begin with the notches of persons and obstructions. 8. See door manufacturer's owners manual. 11. WARNING To avoid SERIOUS personal INJURY or DEATH from a door in motion and ALWAYS keep away from electrocution: • Disconnect ... month. Failure to door travel. 4. NOTE: The Close Limit Switch (CLS) and Safety Limit Switch (SLS) LEDs on the logic board will ATTENTION illuminate when the switches are activated and the power is CLOSED. ALL repairs to set the OPEN limit (3). Personnel should...
...SEVERE INJURY or DEATH. 7. WARNING WARNING LIMIT ADJUSTMENT CAUTION 1 Begin with the notches of persons and obstructions. 8. See door manufacturer's owners manual. 11. WARNING To avoid SERIOUS personal INJURY or DEATH from a door in motion and ALWAYS keep away from electrocution: • Disconnect ... month. Failure to door travel. 4. NOTE: The Close Limit Switch (CLS) and Safety Limit Switch (SLS) LEDs on the logic board will ATTENTION illuminate when the switches are activated and the power is CLOSED. ALL repairs to set the OPEN limit (3). Personnel should...
GT- Logic 4 Installation Manual
Page 25
...person(s) responsible for operation of the photoelectric sensors. TESTING TEST THE PHOTOELECTRIC SENSORS 1. The LMEP LED will blink on the logic board and the receiving eye LED will automatically learn the photoelectric sensors (LMEP) once they are flashing rapidly (and ... read and understand all safety instructions included in this code. After the code has been provided the MAS LED will reverse to manually disconnect the door from obstruction, check photoelectric sensors. Release CLOSE button. Press STOP buAttonV. (ETheRdoTorIsShoSuldEstoMp.)ENT TEST LIMIT ADJUSTMENT 1....
...person(s) responsible for operation of the photoelectric sensors. TESTING TEST THE PHOTOELECTRIC SENSORS 1. The LMEP LED will blink on the logic board and the receiving eye LED will automatically learn the photoelectric sensors (LMEP) once they are flashing rapidly (and ... read and understand all safety instructions included in this code. After the code has been provided the MAS LED will reverse to manually disconnect the door from obstruction, check photoelectric sensors. Release CLOSE button. Press STOP buAttonV. (ETheRdoTorIsShoSuldEstoMp.)ENT TEST LIMIT ADJUSTMENT 1....
GT- Logic 4 Installation Manual
Page 33
... logic board. 4. NOTE: A momentary open command will automatically close reducing heating and cooling costs. The MID LED will vary depending on wiring type T E2 D1 C2 B2 TS FSTS DIAG OPTN PROG WARNING To prevent possible SEVERE INJURY or DEATH: CAUTION • Install a LiftMaster Monitored...button for every 15 seconds the operator should wait before closing door. PROGRAM, press and release the TIMER button, press and TO PROGRAM MANUALLY (METHOD 1): release the STOP button to desired wiring type. Close the door. 2. Turn selector dial back to clear the timer, ...
... logic board. 4. NOTE: A momentary open command will automatically close reducing heating and cooling costs. The MID LED will vary depending on wiring type T E2 D1 C2 B2 TS FSTS DIAG OPTN PROG WARNING To prevent possible SEVERE INJURY or DEATH: CAUTION • Install a LiftMaster Monitored...button for every 15 seconds the operator should wait before closing door. PROGRAM, press and release the TIMER button, press and TO PROGRAM MANUALLY (METHOD 1): release the STOP button to desired wiring type. Close the door. 2. Turn selector dial back to clear the timer, ...
GT- Logic 4 Installation Manual
Page 35
...d. The Maximum Run Timer is complete. 6. In the event the application requires the MRT be manually learned for 5 seconds. Press and hold the MRT button until the MAS led flashes rapidly. ...only, turn selector dial to factory defaults: 1. The remote controls will be learned g. The LiftMaster Monitored Entrapment Protection (LMEP) device will still be unprogrammed NOTE: Life of the user installed ...MRT) Feature: The operator can learn the time it will vary depending on logic board. 4. Start with the door in the closed position. 2. Turn the selector dial to desired wiring ...
...d. The Maximum Run Timer is complete. 6. In the event the application requires the MRT be manually learned for 5 seconds. Press and hold the MRT button until the MAS led flashes rapidly. ...only, turn selector dial to factory defaults: 1. The remote controls will be learned g. The LiftMaster Monitored Entrapment Protection (LMEP) device will still be unprogrammed NOTE: Life of the user installed ...MRT) Feature: The operator can learn the time it will vary depending on logic board. 4. Start with the door in the closed position. 2. Turn the selector dial to desired wiring ...
GT- Logic 4 Installation Manual
Page 36
... TOLL FREE number: 1-800-528-2806 www.liftmaster.com LIFAEDOVFEORPETREATNOCRIFAEATURE (ODOMETER/CYCLE COUNATEDR)VERTENCIA The operator is available as required. Start with Maintenance Alert System. ADVERTENCIA 2. Press and release the MRT button on the logic board. 4. NOTE: Your operator may look ...different than the operator shown. Check and adjust as required. Clutch Check and adjust as required. Manual Disconnect Check and operate. z Inspect and service whenever a ...
... TOLL FREE number: 1-800-528-2806 www.liftmaster.com LIFAEDOVFEORPETREATNOCRIFAEATURE (ODOMETER/CYCLE COUNATEDR)VERTENCIA The operator is available as required. Start with Maintenance Alert System. ADVERTENCIA 2. Press and release the MRT button on the logic board. 4. NOTE: Your operator may look ...different than the operator shown. Check and adjust as required. Clutch Check and adjust as required. Manual Disconnect Check and operate. z Inspect and service whenever a ...
GT- Logic 4 Installation Manual
Page 38
... Motor thermal overload tripped g) Possible accessory malfunction h) Off Board relay may need to be replaced see wiring diagram Off Board Relays). ➤ Replace logic board. Green POWER LED must be on . ➤ Check Interlock(s). correctly b) Interlock switch ➤ Check interlock switch(es) for 5 seconds....in series. Check for loose connections. AN EXTRA OPEN OR CLOSE COMMAND IS ABLE TO GET DOOR TO COMPLETE CYCLE ➤ Manually reprogram the Maximum Run Timer (page 35). TROUBLESHOOTING 38 Troubleshooting guide THE DOOR WILL MOVE The Maximum Run Timer is not binding....
... Motor thermal overload tripped g) Possible accessory malfunction h) Off Board relay may need to be replaced see wiring diagram Off Board Relays). ➤ Replace logic board. Green POWER LED must be on . ➤ Check Interlock(s). correctly b) Interlock switch ➤ Check interlock switch(es) for 5 seconds....in series. Check for loose connections. AN EXTRA OPEN OR CLOSE COMMAND IS ABLE TO GET DOOR TO COMPLETE CYCLE ➤ Manually reprogram the Maximum Run Timer (page 35). TROUBLESHOOTING 38 Troubleshooting guide THE DOOR WILL MOVE The Maximum Run Timer is not binding....
GT- Logic 4 Installation Manual
Page 39
... it will not respond before reaching set open or close limit(s) First check Operator for any faults (i.e., Bad Limit switch), manually learn Max Run Timer (page 35) OR reset factory defaults (page 35). Option card will reverse to the transformer. TROUBLESHOOTING... for greater than 2 minutes Invalid option card plugged into the MAS LED. TROUBLESHOOTING ERROR CODES Logic 4.0 operators incorporate a self diagnostic feature built into option card receptacles LiftMaster Monitored Entrapment Protection (LMEP) device faulted or removed for greater than one error at invalid time...
... it will not respond before reaching set open or close limit(s) First check Operator for any faults (i.e., Bad Limit switch), manually learn Max Run Timer (page 35) OR reset factory defaults (page 35). Option card will reverse to the transformer. TROUBLESHOOTING... for greater than 2 minutes Invalid option card plugged into the MAS LED. TROUBLESHOOTING ERROR CODES Logic 4.0 operators incorporate a self diagnostic feature built into option card receptacles LiftMaster Monitored Entrapment Protection (LMEP) device faulted or removed for greater than one error at invalid time...
GT- Logic 4 User Manual
Page 5
...properly device. AVERTISSEMENT PROGRAM, press and release the TIMER button, press and AVE TO PROGRAM MANUALLY (METHOD 1): release the STOP button to complete programming. T E2 D1 TS FSTS DIAG Operation... BASIC PROGRAMMING WARNING W To prevent possible SEVERE INJURY or DEATH: CAUTION • Install a LiftMaster Monitored Entrapment Protection (LMEP) • Activate door ONLY when it can be activated by the... desired amount of closing the door. safety devices must be reactivated on the logic board. Press and release the TIMER button on the next operation command. the...
...properly device. AVERTISSEMENT PROGRAM, press and release the TIMER button, press and AVE TO PROGRAM MANUALLY (METHOD 1): release the STOP button to complete programming. T E2 D1 TS FSTS DIAG Operation... BASIC PROGRAMMING WARNING W To prevent possible SEVERE INJURY or DEATH: CAUTION • Install a LiftMaster Monitored Entrapment Protection (LMEP) • Activate door ONLY when it can be activated by the... desired amount of closing the door. safety devices must be reactivated on the logic board. Press and release the TIMER button on the next operation command. the...
GT- Logic 4 User Manual
Page 8
... Be sure you have read and understand all safety and entrapment protection devices have read and understand the safety instructions, know how to manually disconnect the door from obstruction, check photoelectric sensors. Allow the door to Limit Adjustment section). The door should stop .) 3. Door ... in C2 or D1 mode. TEST THE PHOTOELECTRIC SENSORS 1. IMPORTANT NOTES: • Do not leave power to the operator on the logic board and the receiving eye LED will go out. Press STOP buttoAn. (VThEe dRoorTshIoSuldSstEop.M) ENT TEST LIMIT ADJUSTMENT 1. TESTWINAGRNING CAUTION Apply ...
... Be sure you have read and understand all safety and entrapment protection devices have read and understand the safety instructions, know how to manually disconnect the door from obstruction, check photoelectric sensors. Allow the door to Limit Adjustment section). The door should stop .) 3. Door ... in C2 or D1 mode. TEST THE PHOTOELECTRIC SENSORS 1. IMPORTANT NOTES: • Do not leave power to the operator on the logic board and the receiving eye LED will go out. Press STOP buttoAn. (VThEe dRoorTshIoSuldSstEop.M) ENT TEST LIMIT ADJUSTMENT 1. TESTWINAGRNING CAUTION Apply ...
GH LOGIC VERSION 2 Manual
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OWNER'S MANUAL MODEL GH LOGIC CONTROL (VER. 2.0) INDUSTRIAL DUTY DOOR OPERATOR LOGIC LCONTROL FACTORY SET C2 Wiring See pages 14 and 15 for other wiring configurations PATENT PENDING The Maintenance Alert System TM allows the installer to set number of cycles is reached or when the opener requires immediate service. 2 YEAR WARRANTY Serial # (located on electrical box cover) Installation Date Wiring Type NOT FOR RESIDENTIAL USE 41B6 LISTED DOOR OPERATOR An LED on the 3-button station will signal when the set an internal Maintenance Cycle Counter.
OWNER'S MANUAL MODEL GH LOGIC CONTROL (VER. 2.0) INDUSTRIAL DUTY DOOR OPERATOR LOGIC LCONTROL FACTORY SET C2 Wiring See pages 14 and 15 for other wiring configurations PATENT PENDING The Maintenance Alert System TM allows the installer to set number of cycles is reached or when the opener requires immediate service. 2 YEAR WARRANTY Serial # (located on electrical box cover) Installation Date Wiring Type NOT FOR RESIDENTIAL USE 41B6 LISTED DOOR OPERATOR An LED on the 3-button station will signal when the set an internal Maintenance Cycle Counter.
GH LOGIC VERSION 2 Manual
Page 11
BLUE WIRE MUST BE INSULATED ON 230V 1PH. **- LOGIC CONTROL (VER. 2.0) 1 PHASE WIRING DIAGRAM 1837-1 230 VOLT MOTOR CONNECTION NOTE: Contactor 1 PH / 3 PH jumper should be in 1 PH position. 115 VOLT MOTOR CONNECTION Note: 1) See Ownerʼs Manual for Dip Switch Functions and Programming Procedures 2) TO REVERSE MOTOR DIRECTION 115 VOLTS: ALWAYS EXCHANGE PURPLE & GRAY ALL VOLTS & PHASES. 230 VOLTS: INTERCHANGE PURPLE (E10) & GRAY (E15) WIRES AT LOGIC BOARD. * - Transformer Primary Voltage same as Line Voltage.. 11
BLUE WIRE MUST BE INSULATED ON 230V 1PH. **- LOGIC CONTROL (VER. 2.0) 1 PHASE WIRING DIAGRAM 1837-1 230 VOLT MOTOR CONNECTION NOTE: Contactor 1 PH / 3 PH jumper should be in 1 PH position. 115 VOLT MOTOR CONNECTION Note: 1) See Ownerʼs Manual for Dip Switch Functions and Programming Procedures 2) TO REVERSE MOTOR DIRECTION 115 VOLTS: ALWAYS EXCHANGE PURPLE & GRAY ALL VOLTS & PHASES. 230 VOLTS: INTERCHANGE PURPLE (E10) & GRAY (E15) WIRES AT LOGIC BOARD. * - Transformer Primary Voltage same as Line Voltage.. 11
GH LOGIC VERSION 2 Manual
Page 12
LOGIC CONTROL (VER. 2.0) 3 PHASE WIRING DIAGRAM 1837-3 380/460 VOLT MOTOR CONNECTION NOTE: Contactor 1 PH / 3 PH jumper should be in 3 PH position. 230 VOLT MOTOR CONNECTION Notes: 1) See Ownerʼs Manual for Dip Switch Functions and Programming Procedures 2) TO REVERSE MOTOR DIRECTION: INTERCHANGE ANY 2 OF THE 3 POWER WIRES AT L1, L2 & L3, OR EXCHANGE PURPLE & GRAY MOTOR LEADS AT BOARD CONNECTIONS E17 & E6 (3PH UNITS ONLY). **- Transformer Primary Voltage same as Line Voltage. 12
LOGIC CONTROL (VER. 2.0) 3 PHASE WIRING DIAGRAM 1837-3 380/460 VOLT MOTOR CONNECTION NOTE: Contactor 1 PH / 3 PH jumper should be in 3 PH position. 230 VOLT MOTOR CONNECTION Notes: 1) See Ownerʼs Manual for Dip Switch Functions and Programming Procedures 2) TO REVERSE MOTOR DIRECTION: INTERCHANGE ANY 2 OF THE 3 POWER WIRES AT L1, L2 & L3, OR EXCHANGE PURPLE & GRAY MOTOR LEADS AT BOARD CONNECTIONS E17 & E6 (3PH UNITS ONLY). **- Transformer Primary Voltage same as Line Voltage. 12
GH LOGIC VERSION 2 Manual
Page 13
Transformer Primary Voltage same as Line Voltage. 13 LOGIC CONTROL (VER. 2.0) 1 PH WIRING DIAGRAM W/ CONTACTOR1842-1 NOTE: Contactor 1 PH / 3 PH jumper should be in 1 PH position. 115 VOLT MOTOR CONNECTION Note: 1) See Ownerʼs Manual for Dip Switch Functions and Programming Procedures 2) TO REVERSE MOTOR DIRECTION 115 & 230 VOLTS: INTERCHANGE PURPLE & GRAY WIRES AT CONTACTOR. **-
Transformer Primary Voltage same as Line Voltage. 13 LOGIC CONTROL (VER. 2.0) 1 PH WIRING DIAGRAM W/ CONTACTOR1842-1 NOTE: Contactor 1 PH / 3 PH jumper should be in 1 PH position. 115 VOLT MOTOR CONNECTION Note: 1) See Ownerʼs Manual for Dip Switch Functions and Programming Procedures 2) TO REVERSE MOTOR DIRECTION 115 & 230 VOLTS: INTERCHANGE PURPLE & GRAY WIRES AT CONTACTOR. **-
GH LOGIC 3 Manual
Page 1
...FOR PROFESSIONAL INSTALLATION ONLY Visit www.LiftMaster.com to set number of cycles/ months is reached or when the operator requires immediate service. An LED on Board 315MHz NOT FOR RESIDENTIAL USE Serial # Box Installation Date A SAFETY DEVICE IS HIGHLY RECOMMENDED L 3 ogic OWNER'S MANUAL GH INDUSTRIAL DUTY COMMERCIAL DOOR OPERATOR This... area. 2 YEAR WARRANTY Radio Receiver Built on the 3-button station will signal when the set an internal Maintenance Cycle Counter. The Logic 3 operator incorporates a self-diagnostic feature built into the (MAS) Maintenance Alert System LED.
...FOR PROFESSIONAL INSTALLATION ONLY Visit www.LiftMaster.com to set number of cycles/ months is reached or when the operator requires immediate service. An LED on Board 315MHz NOT FOR RESIDENTIAL USE Serial # Box Installation Date A SAFETY DEVICE IS HIGHLY RECOMMENDED L 3 ogic OWNER'S MANUAL GH INDUSTRIAL DUTY COMMERCIAL DOOR OPERATOR This... area. 2 YEAR WARRANTY Radio Receiver Built on the 3-button station will signal when the set an internal Maintenance Cycle Counter. The Logic 3 operator incorporates a self-diagnostic feature built into the (MAS) Maintenance Alert System LED.
GH LOGIC 3 Manual
Page 2
...Specifications 4 PREPARATION Hand Chain Right/Left Conversion 5 Disconnect Lever Right/Left Conversion 5 Horizontal Mounting Conversion 5 INSTALLATION Mount the Operator 6 Manual Operation 7 Entrapment Protection Accessories 8 ADJUSTMENT Limit Switch Adjustment 8 Adjust Torque Limiter Clutch 9 Brake Adjustment 9 POWER & GROUND WIRING ... Standard Power & Control Connection Diagrams 12 1 Phase Wiring Diagram 13 3 Phase Wiring Diagram 14 Logic Board 15 PROGRAMMING Logic Control Pushbuttons 16 Determine and Set Wiring Type 16 Failsafe Wiring Types 17 Self-Monitoring Safety Device...
...Specifications 4 PREPARATION Hand Chain Right/Left Conversion 5 Disconnect Lever Right/Left Conversion 5 Horizontal Mounting Conversion 5 INSTALLATION Mount the Operator 6 Manual Operation 7 Entrapment Protection Accessories 8 ADJUSTMENT Limit Switch Adjustment 8 Adjust Torque Limiter Clutch 9 Brake Adjustment 9 POWER & GROUND WIRING ... Standard Power & Control Connection Diagrams 12 1 Phase Wiring Diagram 13 3 Phase Wiring Diagram 14 Logic Board 15 PROGRAMMING Logic Control Pushbuttons 16 Determine and Set Wiring Type 16 Failsafe Wiring Types 17 Self-Monitoring Safety Device...
GH LOGIC 3 Manual
Page 11
...TIMER DEFEAT 12 TIMER DEFEAT AVECRMN T1I1SCSOMEMMON ENT MAS 10 MAINTENANCE ALERT SYSTEM ATTENTION EYES 9 PHOTO EYES (LiftMaster Only) EDGE 8 REVERSE OPEN 7 OPEN CLOSE 6 CLOSE STOP 5 STOP CMN 4 COMMON 3 INTERLOCK ...close. Orient the arm (lever) of the door. • Or ANY other control (automatic or manual) is out of sight of the limit switch away from a 3-button remote, a commercial three-channel...with all models a radio terminal bracket marked R1 R2 R3 is not available on the logic board as the functional position of control station. 3. Control Station 4' Approximate Optional Controls ...
...TIMER DEFEAT 12 TIMER DEFEAT AVECRMN T1I1SCSOMEMMON ENT MAS 10 MAINTENANCE ALERT SYSTEM ATTENTION EYES 9 PHOTO EYES (LiftMaster Only) EDGE 8 REVERSE OPEN 7 OPEN CLOSE 6 CLOSE STOP 5 STOP CMN 4 COMMON 3 INTERLOCK ...close. Orient the arm (lever) of the door. • Or ANY other control (automatic or manual) is out of sight of the limit switch away from a 3-button remote, a commercial three-channel...with all models a radio terminal bracket marked R1 R2 R3 is not available on the logic board as the functional position of control station. 3. Control Station 4' Approximate Optional Controls ...
GH LOGIC 3 Manual
Page 18
...hold the remote control button until the LED flashes rapidly, then release remote control button. All remote controls will then remain on the logic board until the RADIO LED flashes rapidly (approximately 5 seconds). Reversing devices are prohibited, except for ALL installations. AVERTISSEMENT ATTENTION P4 ...Industry Canada (IC) rules, adjustment or modifications of the door. • Or ANY other control (automatic or manual) is OPEN/STOP/constant pressure to CLOSE/STOP on the logic board (LED will work in 3-channel, 315MHz radio receiver allows you to add as many as a wireless ...
...hold the remote control button until the LED flashes rapidly, then release remote control button. All remote controls will then remain on the logic board until the RADIO LED flashes rapidly (approximately 5 seconds). Reversing devices are prohibited, except for ALL installations. AVERTISSEMENT ATTENTION P4 ...Industry Canada (IC) rules, adjustment or modifications of the door. • Or ANY other control (automatic or manual) is OPEN/STOP/constant pressure to CLOSE/STOP on the logic board (LED will work in 3-channel, 315MHz radio receiver allows you to add as many as a wireless ...
GH Logic 4 Quick Start Guide Manual
Page 1
... below the door shaft. NOTE: The optimum distance between the door shaft and operator drive shaft is properly aligned with a manual hoist. Electrical Interlock with Hoist Inside the Electrical Box 9 Single Phase Connections HOT NEUTRAL EARTH Three Phase Connections L1 L2 POWER...Optimum Distance 12" - 15" Optimum Distance 12" - 15" LOGIC 4 Manual Operation This operator has provisions for manually operating the door in position by pulling on the appropriate side of the operator. QuickStart for the model GH door operator IMPORTANT: This QuickStart is safe for its intended use....
... below the door shaft. NOTE: The optimum distance between the door shaft and operator drive shaft is properly aligned with a manual hoist. Electrical Interlock with Hoist Inside the Electrical Box 9 Single Phase Connections HOT NEUTRAL EARTH Three Phase Connections L1 L2 POWER...Optimum Distance 12" - 15" Optimum Distance 12" - 15" LOGIC 4 Manual Operation This operator has provisions for manually operating the door in position by pulling on the appropriate side of the operator. QuickStart for the model GH door operator IMPORTANT: This QuickStart is safe for its intended use....