Chamberlain K001D8395 User manual

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TO REDUCE THE RISK OF SEVERE INJURY OR DEATH:
IMPORTANT INSTALLATION INSTRUCTIONS
1. READ AND FOLLOW ALL INSTALLATION WARNINGS AND
INSTRUCTIONS.
2. Install door operator ONLY on a properly balanced and
lubricated door. An improperly balanced door may NOT
reverse when required and could result in SEVERE INJURY
or DEATH.
3. ALL repairs to cables, spring assemblies and other hardware
MUST be made by a trained door systems technician BEFORE
installing an operator.
4. Disable ALL locks and remove ALL ropes connected to a
door BEFORE installing an operator to avoid entanglement.
5. Install an operator, a minimum of 8 feet (2.44 m) from the
floor.
6. NEVER connect a door operator to a power source until
instructed to do so.
7. NEVER wear watches, rings or loose clothing while installing
or servicing an operator. They could be caught in the door or
operator mechanisms.
8. Install a control station:
• within sight of the door
• out of reach of small children and at a minimum height of
5 feet (1.5 m) above floors, landings, steps, or any other
adjacent walking surface.
• away from ALL moving parts of the door
9. Install the control station far enough from the door to
prevent the user from coming in contact with the door while
operating the controls.
10. Install the entrapment warning placard on the wall next to
the control station in a prominent location, visible from the
door.
11. Place the manual release/safety reverse test label in plain
view on the inside of door.
12. Upon completion of installation, test the entrapment
protection device(s).
13. SAVE THESE INSTRUCTIONS.
When you see these Safety Symbols and Signal Words on the
following pages, they will alert you to the possibility of serious
injury or death if you do not comply with the warnings that
accompany them. The hazard may come from something
mechanical or from electric shock. Read the warnings carefully.
When you see this Signal Word on the following pages, it will
alert you to the possibility of damage to your door and/or the
door operator if you do not comply with the cautionary
statements that accompany it. Read them carefully.
Mechanical
Electrical
IMPORTANT NOTES:
• BEFORE attempting to install, operate or maintain the
commercial door operator, you must read and fully understand
this manual and follow all safety instructions.
• DO NOT attempt repair or service of a commercial door
operator unless you are an Authorized Service Technician.
• A commercial door operator should only be installed on a
properly balanced door only. Ensure door is properly balanced
prior to installation.
SAFETY INFORMATION
ENTRAPMENT PROTECTION DEVICES:
LiftMaster Monitored Entrapment Protection (LMEP)
Monitored photoelectric sensors and/or door edge sensors are
required for any momentary contact to close modes of operation.
Refer to operator manual for additional information. Refer to the
‘Commercial Door Entrapment Protection Systems’, and
accessories page 64, for available options.

General Information
This guide is intended to help with Commercial Door Operator maintenance and troubleshooting. The guide offers several
different troubleshooting scenarios and provides answers to frequently asked questions. The comprehensive, yet user-friendly
guide will hopefully be used as a tool to solve all of the Commercial Door Operator maintenance problems you may encounter.
SECTION A
Basic Troubleshooting 4-6
SECTION B
Logic Operators
Industrial Duty Logic Operators 8-26
Medium Duty Logic Operators 27-31
SECTION C
Mechanical Operators 34-36
SECTION D
Basic Electrical Information 38-45
SECTION E
General Information 46-52
SECTION F
Wiring Diagrams 54-62
Commercial Door Entrapment Protection Systems 64

4
Page
Basic Troubleshooting 5
SECTION A
Table of Contents

5
Basic Troubleshooting
Always Follow Local Electrical Codes
WARNING! If you are not trained in electrical safety, contact a professional electrical safety trainer. It is in your best
interest to have electrical safety training. Do not attempt to work on a powered (turned on) operator if you have
not received electrical safety training. Remember, it is dangerous to deal with high-voltage electricity. Many people
incurred serious injuries, including fatalities, as a result of electrical accidents. You must be very careful when
checking line voltages.
The high-voltage wiring to the operator, low-voltage wiring to the control station(s), and safety devices may require a
licensed electrician for installation.
Make Sure The Door Is Working Properly
Close the door and disconnect the door from the operator. Manually operate the door. The lifting force needed by most
doors should be manageable by one person and the door should move smoothly. Check all hardware for wear, binding
and tightness. Replace any marginal parts. The door should be in good working order. An unbalanced or jerking door
will put excess wear on the operator and cause premature failure. When checking a door with a hoist operator, be sure
the door is disconnected from the operator and lifted by hand and not by the hoist/hand chain. It is very difficult to
determine if the door is balanced when using the operator chain hoist. Repair any door problems before reattaching
the operator.
Remove All Accessories And Control Devices
In many cases an operator may be malfunctioning due to accessories or control devices attached to the operator’s
control circuit. The first step in troubleshooting is to use a process of elimination. Disconnect all wired accessories
and control devices. Many times in complicated installations, there will be extra devices installed by an electrician
or other subcontractor that may not be functioning properly with the operator. If the door functions properly after
disconnecting additional devices, start reconnecting each device one at a time. Determine if any of the control
device(s) are causing the problem. Advise the customer of your findings and their options for repairs/replacements.
NOTE: When monitored entrapment protection devices are removed from operators that require a monitored
entrapment protection device such as photo eyes; they will no longer function unless they are under constant
pressure.
A