GTO GPX-SL25 User manual

rev 03.21.13
Installation Manual for the
Slide Gate Operator System
PROFESSIONAL INSTALLATION RECOMMENDED!
WARNING!
This equipment is similar to other gate or door equipment and meets or
exceeds Underwriters Laboratory Standard 325 (UL 325). However, gate
equipment has hazards associated with its use and therefore by installing this
product the installer and user accept full responsibility for following and noting
the installation and safety instructions. Failure to follow installation and safety
instructions can result in hazards developing due to improper assembly. You
agree to properly install this product and that if you fail to do so Gates That
Open, LLC, (“GTO”) shall in no event be liable for direct, indirect, incidental,
special or consequential damages or loss of profits whether based in contract
tort or any other legal theory during the course of the warranty or at any time
thereafter. The installer and/or user agree to assume responsibility for all
liability and use of this product releasing Gates That Open, LLC, from any
and all liability. If you are not in agreement with this disclaimer or do not feel
capable of properly following all installation and safety instructions you may
return this product for full replacement value.
READ ALL INSTRUCTIONS CAREFULLY AND COMPLETELY before
attempting to install and use this automatic gate operator. This gate operator
produces a high level of force. Stay clear of the unit while it is operating and
exercise caution at all times.
All automatic gate operators are intended for use on vehicular gates only.
This product meets and exceeds the requirements of UL 325, the standard which
regulates gate operator safety, as established and made eective March 1, 2000,
by Underwriters Laboratories Inc.
For more information on the GTO/ACCESS SYSTEMS full line of automatic gate
operators and access controls visit our website at www.gtoaccess.com.
©2012 Gates That Open, LLC Printed in China for Gates That Open, LLC.
, LLC
®
GPX-SL25
GPX-SL25
PROFESSIONAL RESIDENTIAL
ACCESS
SYSTEMS
DO NOT INSTALL THIS OPERATOR WITHOUT
SAFETY EDGES AND ROLLER GUARDS!

ii GPX-SL25 Instruction Manual rev 03.21.13
Class Rating
The GTO GPX-SL25 Gate Operator is intended for use with vehicular slide gates in single family residential
applications. The operator is system certied to be in compliance with UL 325, current edition, as of publication date.
Vehicular Gate Operator Class Categories:
Residential Vehicular Gate Operator—Class I: A vehicular gate operator (or system) intended for use in a home of
one-to-four single family dwellings, or a garage or parking area associated therewith.
Commercial/General Access Vehicular Gate Operator—Class II: A vehicular gate operator (or system) intended for
use in a commercial location or building such as a multifamily housing unit (ve or more single family units), hotel,
garages, retail store, or other building servicing the general public.
Industrial/Limited Access Vehicular Gate Operator–Class III: A vehicular gate operator (or system) intended for use
in an industrial location or building such as a factory or loading dock area or other locations not intended to service
the general public.
Restricted Access Vehicular Gate Operator–Class IV: A vehicular gate operator (or system) intended for use in
a guarded industrial location or building such as an airport security area or other restricted access locations not
servicing the general public, in which unauthorized access is prevented via supervision by security personnel.
Converting Metric Units to English Equivalents
When You Know Multiply By To Find Symbol
centimeters 0.3937 inches in. (or ")
meters 3.2808 feet ft. (or ')
kilograms 2.2046 pounds lb. (or #)
Converting English Units to Metric Equivalents
When You Know Multiply By To Find Symbol
inches 2.5400 centimeters cm
feet 0.3048 meters m
pounds 0.4535 kilograms kg
Converting Temperature
deg. Celsius (°C x 1.8) + 32 deg. Fahrenheit °F
deg. Fahrenheit (°F-32) ÷ 1.8 deg. Celsius °C
Serial Number: ___________________________________ Date of Purchase: ________________
Place of Purchase:___________________________________________________________________
Please record the following information product serial number (located on right side of the operator housing),
be sure to keep all receipts for proof of purchase. Refer to this information when calling GTO for service or
assistance with your automatic gate opener.
FOR YOUR RECORDS
CLASS RATING

GPX-SL25 Instruction Manual iii
rev 03.21.13
Table Of Contents
Class Rating ...............................................................................................................................................................ii
Please Read This First............................................................................................................................................iv
Important Safety Instructions.............................................................................................................................v
Before You Begin......................................................................................................................................................1
GPX-Sl25 Technical Specications.....................................................................................................................2
GPX-Sl25 Parts Identication...............................................................................................................................3
Single Gate Operator Installation......................................................................................................................4
Gate Preparation ............................................................................................................................................4
Overview Of Operator Installation...........................................................................................................4
Determine Mounting Options............................................................................................................................5
Concrete Pad....................................................................................................................................................5
Post Mount Adapter Plate ( R4983)...................................................................................................................... 5
Adjustable Pad Mount Adapter Plate ( R4984)............................................................................................. 5
Determining Operator Mount Position ..........................................................................................................6
Using The Mounting Template...........................................................................................................................8
Installing The Chain................................................................................................................................................9
Powering The System.......................................................................................................................................... 10
Connecting The Battery............................................................................................................................10
Installation Of The Gto Transformer ..................................................................................................... 10
Connecting Solar Panel(s)).......................................................................................................................11
Connecting The Receiver .........................................................................................................................11
Control Board Settings ......................................................................................................................................12
Dip Switches .................................................................................................................................................12
Program Your Personal Transmitter ...............................................................................................................14
Mounting The Receiver ......................................................................................................................................15
Receiver Installation...................................................................................................................................15
Adjusting The Limit Switches...........................................................................................................................16
Connecting Safety Devices...............................................................................................................................17
Input Connections ............................................................................................................................................... 18
Connecting Accessories..................................................................................................................................... 19
Dual Gate System Installation..........................................................................................................................20
Preparing The Gates ............................................................................................................................................21
Wiring The Second Operator............................................................................................................................22
Control Board Settings For Dual Install ........................................................................................................23
Attaching The Housing....................................................................................................................................... 24
Maintenance ..........................................................................................................................................................24
Warranty And Repair Service ...........................................................................................................................25
Troubleshooting Guide......................................................................................................................................26
Accessories ............................................................................................................................................................. 27

iv GPX-SL25 Instruction Manual rev 03.21.13
Thank you for purchasing a GTO/ACCESS SYSTEMS GPX-SL25. When correctly installed and
properly used, your GPX-SL25 operator will give you many years of reliable service. Please read
the following information to ensure you have the correct system for your particular needs. This
manual will enable you to properly install your GPX-SL25 Automatic Gate Operator.
The GPX-SL25 operator is designed for installation on a slide-to-open single leaf gate. The
gate must not exceed 24 feet in length nor weigh more than 650 pounds (please see Technical
Specifications on page 2). The GPX-SL25 operator can be used on vinyl, aluminum, chain link and
wrought iron gates.
The GPX-SL25 operator accommodates extra transmitters, digital keypads, solar panels, push
buttons, and other access control products. These optional accessories are noted with the
symbol.
The GPX-SL25 operator features adjustable stall force. This safety feature makes the gate stop
and reverse direction within two seconds when it comes in contact with an obstruction. The “MIN”
setting means the gate will exert the minimum force on an obstruction before it stops and reverses
direction.
The GPX-SL25 operator also has an adjustable auto-close feature. It can be set to remain open
from 3 to 120 seconds before automatically closing. Pressing the transmitter button at any time
after the gate fully opens will cause it to close immediately. “OFF” is the factory setting; meaning
the gate will stay open until you press the transmitter button (or keypad, etc.) again.
Please call GTO at (800) 543-GATE [4283] or [phone] for more information about our
GTO/ACCESS SYSTEMS professional line of gate operators and accessories. Our Sales
Department will be glad to give you the name and phone number of a GTO/ACCESS SYSTEMS
dealer near you.
BEFORE YOU BEGIN TO INSTALL YOUR AUTOMATIC GATE OPERATOR:
Read these instructions carefully and completely to become familiar with all parts and
installation steps. You must read the installation manual for detailed instructions on gate
operator safety and proper use of the gate operator.
24/7 Troubleshooting Wizard: http://support.gtoinc.com
PLEASE READ THIS FIRST
, LLC
®
GTO Accessories are noted with this symbol in this Installation
Manual. Information about accessories can be found on page 29.

GPX-SL25 Instruction Manual v
rev 03.21.13
IMPORTANT SAFETY INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
Because automatic gate operators produce high levels of force, consumers need to know the potential
hazards associated with improperly designed, installed, and maintained automated gate operator
systems. Keep in mind that the gate operator is just one component of the total gate operating system.
Each component must work in unison to provide the consumer with convenience, security, and safety.
This manual contains various safety precautions and warnings for the consumer. Because there are
many possible applications of the gate operator, the safety precautions and warnings contained in
this manual cannot be completely exhaustive in nature. They do, however, provide an overview of the
safe design, installation, and use of this product. CAREFULLY READ AND FOLLOW ALL SAFETY
PRECAUTIONS, WARNINGS, AND INSTALLATION INSTRUCTIONS TO ENSURE THE SAFE
SYSTEM DESIGN, INSTALLATION, AND USE OF THIS PRODUCT.
Precautions and warnings in this manual are identified with this warning symbol. The symbol
identifies conditions that can result in damage to the operator or its components, serious injury, or
death.
Because GTO automatic gate operators are only part of the total gate operating system, it is the
responsibility of the installer/consumer to ensure that the total system is safe for its intended
use.
How To Manually Open and Close the Gate:
CAUTION: Disconnect the operator chain ONLY when the power switch on the contol box
is turned off.
Disconnecting the Operator
1. Lift both the quick release pins UP, then pull them OUT of the chain brackets
(see illustration).
2. Lay the chain down and manually slide the gate
to the desired position.
CAUTION: Because the GTO gate
operator is battery powered, disconnect
the operator ONLY when the power
switch on the control box is turned OFF.
Unplugging the transformer does not turn
power to the operator OFF.
NOTE: To prevent unauthorized removal of the
quick release pins, install [FM345] pin locks
(see accessories on page 29) above the quick
release pins in both chain brackets.
Quick Release Pin (211IH)
Insert pin lock (FM345)
shaft through the
Chain Bracket.
Secure pin lock
above the Quick
Release Pin.
Chain Bracket (204IH)

IMPORTANT SAFETY INSTRUCTIONS
vi GPX-SL25 Instruction Manual rev 03.21.13
For The System Designer
WARNING: To reduce the risk of injury or death:
1. READ AND FOLLOW ALL INSTRUCTIONS. Failure to meet the requirements set forth in the instruction
manual could cause severe injury or death, for which the manufacturer cannot be held responsible.
2. When designing a system that will be entered from a highway or main thoroughfare, make sure the system is
placed far enough from the road to prevent traffic congestion.
3. The gate must be installed in a location that provides adequate clearance between it and adjacent structures
when opening and closing to reduce the risk of entrapment.
4. The gate and gate operator installation must comply with any applicable local codes.
I. Before Installation
1. Verify this operator is proper for the type and size of gate, its frequency of use, and the proper class rating.
2. Make sure the gate has been properly installed and slides freely in both directions. Repair or replace all worn or
damaged gate hardware prior to installation. A freely moving gate will require less force to operate and will
enhance the performance of the operator and safety devices used with the system.
3. Review the operation of the system to become familiar with its safety features. Understand how to disconnect the
operator for manual gate operation (page v).
4. This gate operator is intended for vehicular gates ONLY. A separate entrance or gate must be installed for
pedestrian use (page ix).
5. Always keep people and objects away from the gate and its area of travel. NO ONE SHOULD CROSS THE
PATH OF A MOVING GATE.
II. During Installation
1. Install the gate operator on the inside of the property and fence line. DO NOT install an operator on the outside
of the gate where the public has access to it.
2. Be careful with moving parts and avoid close proximity to areas where fingers or hands could be pinched.
3. Devices such as contact sensors (safety edges) and non contact sensors (photo beams) provide
additional protection against entrapment.
4. If push buttons or keypads are installed, they should be within sight of the gate, yet located at least 10 feet from
any moving part of the gate. Never install any control device where a user will be tempted to reach through
the gate to activate the gate operator.
5. Do not activate your gate operator unless you can see it and can determine that its area of travel is clear of
people, pets, or other obstructions. Watch the gate through its entire movement.
6. Secure outdoor or easily accessed gate operator controls in order to prohibit unauthorized use of the gate.

GPX-SL25 Instruction Manual vii
rev 03.21.13
IMPORTANT SAFETY INSTRUCTIONS
III. After Installation
1. Attach the warning signs (included) to each side of the gate to alert the public of automatic gate operation. It
is your responsibility to post warning signs on both sides of your gate. If any of these signs or warning decals
become damaged, illegible or missing, replace them immediately. Contact GTO for free replacements.
2. The gate is automatic and could move at any time, posing a serious risk of entrapment. No one should be in
contact with an activated gate when it is moving or stationary.
3. Do not attempt to drive into the gate area while the gate is moving; wait until the gate comes to a complete
stop.
4. Do not attempt to “beat the gate” (drive through) while the gate is closing. This is extremely dangerous.
5. Do not allow children or pets near your gate. Never let children operate or play with gate controls. Keep
ALL gate controls away from children and unauthorized users; store controls where children and unauthorized
users do not have access to them.
6. KEEP GATE AND GATE Operator PROPERLY MAINTAINED. Always turn power to operator OFF before
performing any maintenance. Regularly lubricate rollers.
7. To operate this equipment safely, YOU must know how to disconnect the operator for manual gate operation
(page v). If you have read the instructions and still do not understand how to disconnect the operator, contact
the GTO Service Department.
8. Disconnect the operator ONLY when the power is TURNED OFF and the gate is NOT moving.
9. Make arrangements with local fire and law enforcement for emergency access.
10. Distribute and discuss copies of the IMPORTANT SAFETY INSTRUCTIONS section of this manual with all
persons authorized to use your gate.
11. IMPORTANT: Save these safety instructions. Make sure everyone who is using or will be around the gate
and gate operator are aware of the dangers associated with automated gates. In the event you sell the
property with the gate operator or sell the gate operator, provide a copy of these safety instructions to
the new owner.
Should you lose or misplace this manual, a copy can be obtained by downloading one from the GTO web site
(www.gtoaccess.com), by contacting Gates That Open, LLC., at 3121 Hartsfield Road, Tallahassee, Florida 32303
or by calling 1-800-543-4283 and requesting a duplicate copy. One will be provided to you free of charge.
Required Safety Precautions for Gates
Install Warning Signs
Warning signs alert people of automatic gate operation and are required when installing the GTO Gate Operator. The
Warning Signs included must be installed on both sides of each gate. Furthermore, a walk-through gate must be installed
for pedestrian traffic.
Entrapment Protection
GTO’s inherent obstruction settings, even when properly adjusted, may not be sensitive enough to prevent bodily
injury in some circumstances. For this reason, safety devices such as safety edge sensors (or photoelectric sensors),
which stop and reverse gate direction upon sensing an obstruction, are required for enhanced protection against
entrapment.

IMPORTANT SAFETY INSTRUCTIONS
viii GPX-SL25 Instruction Manual rev 03.21.13
Secondary Means of Protection Against Entrapment
As specified by Gate Operator Safety Standard, UL 325 (30A.1.1), automatic gate operators shall have an inherent
entrapment sensing system, and shall have provisions for, or be supplied with, at least one independent secondary
means to protect against entrapment. The GPX-SL25 utilizes Type A, an inherent (i.e., built-in) entrapment sensing system
as the primary type of entrapment protection. Also, the GPX-SL25 has provisions for the connection of Type B1 or B2
protection to be used as the secondary type of entrapment protection, if desired.
1. For gate operators utilizing a non-contact sensor (e.g., photo-electric sensor– Type B1) in accordance with
UL 325 (51.8.4 [h]):
A. Refer to the sensor manufacturer’s instructions on the placement of non-contact sensors for each type of
application.
B. Care shall be exercised to reduce the risk of nuisance tripping, such as when a vehicle trips the sensor while the
gate is still moving.
C. One or more non-contact sensors shall be located where the risk of entrapment or obstruction exists, such as the
perimeter reachable by a moving gate or barrier.
2. For gate operators utilizing a contact sensor (e.g., safety edge sensor– Type B2) in accordance with UL 325
(51.8.4 [i]):
A. One or more contact sensors shall be located at the leading edge, bottom edge, and post edge, both inside and
outside of a vehicular slide gate system.
B. A hard wired contact sensor shall be located and its wiring arranged so that the communication between the
sensor and the gate operator is not subjected to mechanical damage.
C. A wireless contact sensor such as one that transmits radio frequency (RF) signals to the gate operator for
entrapment protection functions shall be located where the transmission of the signals are not obstructed or
impeded by building structures, natural landscaping or similar obstruction. A wireless contact sensor shall
function under the intended end-use conditions.
You may want to consider adding photo beams to your installation. GTO Photo Beams [R4222] provide a “non contact”
means of entrapment protection.
ENTRAPMENT ALARM (UL 325; 30A.1.1A)
The GPX-SL25 Gate Operator is designed to stop and reverse within 2 seconds when the gate comes in contact with
an obstruction. Additionally, these operators are equipped with an audio entrapment alarm which will activate if the
unit obstructs twice while opening or closing. This alarm will sound for a period of 5 minutes, or until the operator
receives an intended signal from a hard wired entry/exit source (e.g. push button control or keypad) and the gate
returns to a fully open or fully closed position. Turning the power switch on the control box OFF and back ON will also
deactivate the alarm. Wireless controls such as transmitters and wireless keypads will not deactivate the alarm.
Contact Sensor Warning Sign
Contact Sensor Contact Sensor
Roller Guard
Roller Guard
Pedestrian Gate
1. KEEP CLEAR! Gate may move at any time.
2. Do not allow children to operate gate or
play in gate area.
3. This gate is for vehicles only. Pedestrians
must use a separate entrance.
Moving Gate Can Cause
Injury Or Death
WARNING
!
Vehicle Gate
Operator

GPX-SL25 Instruction Manual ix
rev 03.21.13
IMPORTANT SAFETY INSTRUCTIONS
Required Safety Precautions for Gates
Install Screen Guard Over Gate and Fence
Injuries may occur when people place their hands, arms, legs, etc., through openings in the gate grill when the gate is
operated, trapping them between the grill and the fence post (or fence). All openings of a horizontal slide gate must be
guarded or screened to prevent a 2 ¼” diameter sphere from passing through openings anywhere in the gate. This screen/
guard must also be installed over the portion of adjacent fence that the gate covers in the open position.
Screening will prevent access through openings in areas where the gate may travel.
Roller guard to prevent
pinch point hazard.
Roller guard to prevent
pinch point hazard.
Contact Sensor
Roller Guards
Injuries occur
when people get
their hands caught
between the gate
and the roller. Roller
guards or enclosed
tracks must be
installed to prevent
this pinch point
hazard.
The warning
signs (left) must
be installed on
both sides of
the gate.
1. KEEP CLEAR! Gate may move at any time.
2. Do not allow children to operate gate or
play in gate area.
3. This gate is for vehicles only. Pedestrians
must use a separate entrance.
Moving Gate Can Cause
Injury Or Death
WARNING
!
Entrapment Protection
GTO’s internal obstruction settings, even when properly adjusted, may not be sensitive enough to prevent bodily injury.
For this reason, safety devices such as safety edges MUST be installed. Furthermore, a pedestrian gate must be installed
if walk-through traffic is expected near the gate.
Contact Sensor Screen Mes
h
Contact Sensor Contact Sensor
Contact Sensor Warning Sign
Contact Sensor Contact Sensor
Roller Guard
Roller Guard
Pedestrian Gate
1. KEEP CLEAR! Gate may move at any time.
2. Do not allow children to operate gate or
play in gate area.
3. This gate is for vehicles only. Pedestrians
must use a separate entrance.
Moving Gate Can Cause
Injury Or Death
WARNING
!
Vehicle Gate
Operator

IMPORTANT SAFETY INSTRUCTIONS
xGPX-SL25 Instruction Manual rev 03.21.13
These warning labels should be found at the locations specified below. If any of them are missing,
immediately contact your installer for replacements.
• Fingers, hands, and loose clothing
may be dragged into chain sprockets.
• Fingers and hands can be injured by
rotating sprockets.
•
Keep hands, fingers, and loose clothing
away from chain and sprockets.
WARNING
!
Warning label located on top
of control box.
Warning label located on front of
operator housing.
Product identification and manual operation instruction
label installed on outer housing.
Maximum Gate: 650 lb. (294.8 kg); 24 ft. (7.3 m)
Voltage: 12 Vdc; Frequency: 0 Hz; Power: 93.2 W
Class I Vehicular Slide Gate Operator
Serial Number: GPXSL25-xxxxxxx
9901178
Conforms to UL 325 STANDARDS
Certified to CAN/CSA-C22.2 No.247-92
Disconnect operator ONLY when the gate is NOT moving.
TO MANUALLY OPEN AND CLOSE THE GATE:
1. Lift quick release pins UP, then pull them OUT of chain brackets.
2. Lay chain down and manually slide gate to desired position.
SL2000 Series
Gates That Open, LLC. Tallahassee, Florida USA
L
I
S
T
E
D
USC
• Fingers, hands, and
loose clothing may be
dragged into chain
sprockets.
• Fingers and hands can
be injured by rotating
sprockets.
• Keep hands, fingers,
and loose clothing
away from chain and
sprockets.
WARNING
!
• Adjusting limit switches with power on will
activate gate.
• Injury may result if fingers get caught under
switch plate while adjusting switches.
•
Use extreme caution when adjusting switches.
WARNING
!
Warning label located on right
side of control box.
1. KEEP CLEAR! Gate may move at any time.
2. Do not allow children to operate gate or
play in gate area.
3. This gate is for vehicles only. Pedestrians
must use a separate entrance.
Moving Gate Can Cause
Injury Or Death
WARNING
!
Warning signs (2) to be installed on each side of the gate
(3–5 feet above the bottom of the gate).
WARNING
1800-543-GATE (4283)
www.gtopro.com
!
•
Fingers, hands,
and loose clothing
may be dragged
into chain
sprockets.
•
Fingers and hands
can be injured by
rotating sprockets.
•
Keep hands,
fingers, and loose
clothing away
from chain and
chain opening in
operator housing.
R4258