FAAC 820 User manual

The 820/860 Slide Gate
Operator: Installation Manual
Contents
Important Safety Information........................................................................2
Technical Data ..............................................................................................4
Unpacking the Operator ................................................................................5
The 820/860 Slide Gate Operator..................................................................6
General Characteristics .............................................................................6
Operating Logic ........................................................................................7
Manual Release Mechanism..................................................................7
E1 (Semi-Automatic 1) Mode ...............................................................8
E2 (Semi-Automatic 2) Mode ...............................................................8
A1 (Automatic 1) Mode ........................................................................8
A2 (Automatic 2) Mode ........................................................................9
S1 (Security) Mode ...............................................................................9
S2 (Security Plus) Mode .......................................................................9
B Mode..................................................................................................9
C Mode..................................................................................................9
Installation Instructions...............................................................................11
Set the Forms for the Conduit and Concrete ..........................................11
Ground Mounting................................................................................11
Cantilevered Mounting........................................................................11
Mount the Operator on the Foundation Plate .........................................11
Chain Operator ....................................................................................11
Rack and Pinion Operator ...................................................................12
Connect the Electrical Power .................................................................14
Set the DIP Switches...............................................................................15
Operating Logic...................................................................................16
Pause Time ..........................................................................................16
Warning Light Operation ....................................................................17
Gate Orientation ..................................................................................17
Set the Limit Switches.............................................................................17
Define the Midpoint ............................................................................18
Set the Opened Limit...........................................................................19
Set the Closed Limit ............................................................................19
Relocating the Midpoint......................................................................19
Install Other Accessories.........................................................................20
Remove the Bleed Screw ........................................................................21
Adjust the Clutch of the Operator ...........................................................22
Maintenance ................................................................................................23
Troubleshooting ..........................................................................................24
Exploded View, 820/860 Mechanical Parts ................................................25
Exploded View, 820/860 Electronic Parts ..................................................26
FAAC International, Inc.
303 Lexington Avenue
Cheyenne, WY 82007
www.faacusa.com

2
Important Safety Information
Both the installer and the owner and/or operator of
this system need to read and understand this
installation manual and the safety instructions
supplied with other components of the gate system.
This information should be retained by the owner
and/or operator of the gate.
WARNING! To reduce the risk of injury or death
1. READ AND FOLLOW ALL
INSTRUCTIONS.
2. Never let children operate or play with
gate controls. Keep the remote control
away from children.
3. Always keep people and objects away
from the gate. NO ONE SHOULD
CROSS THE PATH OF THE
MOVING GATE.
4. Test the gate operator monthly. The
gate MUST reverse on contact with a
rigid object or stop when an object
activates the non-contact sensors. After
adjusting the force or the limit of travel,
retest the gate operator. Failure to
adjust and retest the gate operator
properly can increase the risk of injury
or death.
5. Use the emergency release only when
the gate is not moving.
6. KEEP GATES PROPERLY
MAINTAINED. Read the owner’s
manual. Have a qualified service person
make repairs to gate hardware.
7. The entrance is for vehicles only.
Pedestrians must use separate entrance.
8. SAVE THESE INSTRUCTIONS.
There are three kinds of safety issues involved with an
automatic gate operator: issues arising from the design
of the gate, from the installation of the gate and the
operator, and from the use of the gate operator. The
following information is designed to help you be sure
your gate and its operator are well-designed, installed
correctly, and used safely.
Gate Design
1. A gate is a potential traffic hazard, so it is im-
portant that you locate the gate far enough away
from the road to eliminate the potential of traffic
getting backed up. This distance is affected by the
size of the gate, how often it is used, and how fast
the gate operates.
2. The operator you choose to install on your gate
must be designed for the type and size of your gate
and for the frequency with which you use the
operator.
3. Your gate must be properly installed and must work
freely in both directions before the automatic
operator is installed.
4. An automatic operator should be installed on the
inside of the property/fence line. Do not install the
operator on the public side of the property/fence
line.
5. Pedestrians should not use a vehicular gate system.
Prevent such inappropriate use by installing
separate gates for pedestrians.
6. Exposed, reachable pinch points on a gate are
potentially hazardous and must be eliminated or
guarded.
7. Outward swinging gates with automatic operators
should not open into a public area.
8. The operating controls for an automatic gate must
be secured to prevent the unauthorized use of those
controls.
9. The controls for an automatic gate should be
located far enough from the gate so that a user
cannot accidentally touch the gate when operating
the controls.
10. An automatic gate operator should not be installed
on a gate if people can reach or extend their arms or
legs through the gate. Such gates should be guarded
or screened to prevent such access.
Installation
1. If you have any question about the safety of the
gate operating system, do not install this operator.
Consult the operator manufacturer.
2. The condition of the gate structure itself directly
affects the reliability and safety of the gate
operator.

3
3. Only qualified personnel should install this
equipment. Failure to meet this requirement could
cause severe injury and/or death, for which the
manufacturer cannot be held responsible.
4. The installer must provide a main power switch that
meets all applicable safety regulations.
5. Clearly indicate on the gate with a minimum of 2
warning signs (visible from either side of the gate)
that indicate the following:
•The gate is automatic and could move at
any time, posing a serious risk of
entrapment.
•Children should not be allowed to operate
the gate or play in the gate area.
•The gate should be operated only when it
is visible to the operator and the when the
area is free of people and obstructions.
6. It is extremely unsafe to compensate for a damaged
gate by overtightening a clutch or increasing
hydraulic pressure.
7. Devices such as reversing edges and photocells
must be installed to provide better protection for
personal property and pedestrians. Install reversing
devices that are appropriate to the gate design and
gate application.
8. Before applying electrical power, be sure that the
voltage requirements of the equipment correspond
to your supply voltage. Refer to the label on your
operator system.
Use
1. Use this equipment only in the capacity for which it
was designed. Any use other than that stated should
be considered improper and therefore dangerous.
2. When using any electrical equipment, observe
some fundamental rules:
•Do not touch the equipment with damp or
humid hands or feet.
•Do not install or operate the equipment
with bare feet.
•Do not allow small children or incapable
persons to use the equipment.
3. If a gate system component malfunctions, turn off
the main power before making any attempt to repair
it.
4. Do not attempt to impede the movement of the
gate. You may injure yourself as a result.
5. This equipment may reach high temperatures
during operation; therefore, use caution when
touching the external housing of the operator.
6. Learn to use the manual release mechanism
according to the procedures found in this in-
stallation manual.
7. Before carrying out any cleaning or maintenance
operations, disconnect the equipment from the
electrical supply.
8. To guarantee the efficiency of this equipment, the
manufacturer recommends that qualified personnel
periodically check and maintain the equipment.
U.L. Class and FAAC Operator
Model Duty Cycle Typical Use
Class I: Residential Vehicular Gate Operator
402 746
422 750
412 760
630
Limited duty •Home use
•Small apartment building, for example, up to 4 units
in a building, with limited public access
Class II: Commercial/General Access Vehicular Gate Operator
400 640
620
Continuous duty •Apartment buildings
•Very public access
Class III: Industrial/Limited Access Vehicular Gate Operator
400 640
620
Continuous duty •No public access
Class IV: Restricted Access Vehicular Gate Operator
620 640 Continuous duty
•Prison rated security

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Technical Data
Parameter 820 860
Maximum motor run time at
72 deg F (24 deg C) 30%
Maximum gate leaf length
Z16 gear, ft (m) 33 (10) 33 (10)
Z20 gear, ft (m) 42 (13) 42 (13)
Z28 gear, ft (m) 59 (18) 59 (18)
Pulling forceb: At start up under
maximum load
Z16 gear, lb (kg) 45 (21) 85 (38)
Z20 gear, lb (kg) 35 (16) 65 (30)
Z28 gear, lb (kg) 25 (11) 45 (21)
Speed
Z16 gear, in./sec (cm/sec) 8 (20) 8 (20)
Z20 gear, in./sec (cm/sec) 10 (25) 10 (25)
Z28 gear, in./sec (cm/sec) 14 (35) 14 (35)
A/C (partial open) distance
Z16 gear, ft (m) 4 2/3 (1.4) 4 2/3 (1.4)
Z20 gear, ft (m) 5 1/4 (1.6) 5 1/4 (1.6)
Z28 gear, ft (m) 6 2/3 (2) 6 2/3 (2)
Drives available Chain or rack and pinion
Horsepower, hp ½ ¾
Power voltage required, VAC
(60 Hz)c
230 +6 or -10%c
Operator dimensions,
l ×w ×h, in. (cm)
9 ¼ ×5 ½ ×15
(23.5 ×14 ×38.2)
9 ¼ ×5 ½ ×15 ¾
(23.5 ×14 ×40.2)
Operator weight, lb (kg) 31 (14) 34 (15)
Oil type FAAC XD 220 or Shell/Tellus #15
Oil quantity, qt (l) 1 (0.9)
aMotor run time may vary if gate and operator are not installed properly.
b Measured at 220 volts and at 72 deg F (22 deg C). Increased or decreased voltage affects pulling forces
respectively.
cYour standard 220 VAC power source meets the specification for 230 VAC, +6 or -10%.

5
Unpacking the Operator
When you receive your 820 or 860 Operator (see
Figure 1), complete the following steps.
Inspect the shipping box for physical damage such as
leaking oil or a torn carton. Then inspect the operator
after you remove it from the box. Notify the carrier
immediately if you note any damage because the
carrier must witness the damage before you can file a
claim.
As you unpack the box, insure that all the parts listed
are included.
Operator carton
1 Operator included with customer-ordered chain
drive or rack and pinion drive
1 Shrink wrapped package with the following:
2 Mounting washers
4 Leveling bolts
4 Nuts for leveling bolts
2 Larger nuts for mounting bolts
1 Manual Release Lever
S8 is ON S8 is OFF
(a) Chain drive
Figure 1. Dimensions of the 820/860 operators

6
The 820/860 Slide Gate Operator
General Characteristics
The 820 and 860 Slide Gate Operators are compact
operators with GentleSlidetm Motion Management for
high-traffic applications. The 820 is designed for
medium-weight gates, and the 860 is designed for
heavier gates. Either operator is available with a chain
drive or a rack and pinion drive.
Both operators feature internal limit switches for gate
leaves up to 59 ft (18 m) in length. (The 860 can also
accept external limit switches for gates as long as 66 ft
[20 m].) The operators also feature internal cooling
systems, interchangeable gears for various sized gates
and gate speeds, and a partial opening function.
The new partial opening function allows you to open
the gate just enough for motorcycle traffic, for example,
without compromising your security.
Each operator has a die-cast anodized aluminum
housing and a die-cast aluminum cover protected by
polyester paint. Those mechanical components
requiring extra strength are made of steel or cast iron.
The motor for the 820 or 860 Operator serves as a gate
lock. For further reliability, the motor's armature shaft is
mounted on double bearings. The worm drive
mechanism and single-plate clutch are encased in oil to
lubricate their moving parts and dissipate the heat they
generate during operation.
Inside the operator's housing you will find that the
transformer, capacitor, and analog-digital limit switch
module are separate from the main control panel board
for easy maintenance (see Figure 2). In addition, the
control panel provides quick-connector ports.
The 826 MPS control panel inside the 820 or 860
Operator offers you choices in gate leaf functions. For
example, you can choose among eight different logical
modes of operation. You can also select the pause time
you want (from 5 to 180 sec, depending on logic mode),
the direction in which the gate slides, and the operation
Operator
ground
1 Transformer
2 826 MPS control panel
3 Capacitor
4 Clutch adjustment screw
5 Electric motor
6 ADL electronic card
7 Limit switch unit
8 Worm screw
9 Crown wheel
10 Manual Release
11 Pinion
12 Casing
Figure 2. The 820 or 860 Operator with the cover removed

7
of the warning light as the gate leaf closes. The control
panel also accepts a wide range of product accessories
and reversing devices to allow you the maximum
flexibility in designing your gate system.
One feature of FAAC's slide gate operators is the
adjustable internal limit switch function. By setting the
operator to recognize the fully closed and fully opened
positions of the gate leaf's travel, you also enable the
operator to automatically brake the gate leaf before it
reaches the end of its travel in either direction, thus
causing less stress on your gate leaf.
Safety features on the 820 or 860 Operator include an
adjustable, oil-immersed clutch that is designed to help
provide anti-crush protection for both pedestrians and
property, as well as for the gate system itself. The
location of the clutch—on the input side of the gear
box—allows for sensitive control of sliding pressures.
WARNING! The anti-crush clutch adjustment
should not be considered adequate protection
for pedestrians or property! Additional
reversing accessories, such as inductive loops,
photocells, or reversing edges, must be installed
for more complete pedestrian and property
safety.
With the clutch pressure properly adjusted, the 820
Operator or the 860 Operator with the Reverse on
Contact function (RC) automatically re-opens the gate if
an obstacle blocks the gate's closing. During opening,
an encountered obstacle causes the gate to stop its
motion.
WARNING! When encountering an obstacle,
the 860 without the reverse on contact (RC)
function does not reverse during closing nor
does it stop on opening. To provide comparable
safety, you must use additional reversing
devices and you must adjust the operator’s
clutch with great care.
A Manual Release mechanism is also provided on both
the 820 and 860 (see Fig. 3). This lever operated
mechanism can be used to disengage the drive motor so
that you can open or close the gate leaf by hand. Such
manual operation of the gate is necessary during
installation and may be useful in power failures and
emergencies.
Also, on the chain-drive version of either the 820 or
860, a chain guard is provided to fit around the sprock-
ets and prevent foreign objects from being caught be-
tween the chain and sprocket. On the rack and pinion
version, a pinion guard is provided for comparable
safety.
Manual Release Lever:
turn clockwise to
disengage the motor
Figure 3. The Manual Release Lever on the 820
and 860 Operators
Operating Logic
The 820 and 860 Operators provide a Manual Release
mechanism for manually operating the gate as well as
eight different operating logics (also see page 10).
Manual Release Mechanism
The Manual Release mechanism is a built-in emergency
release device of the 820/860 Operators (see Figure 3).
You disengage the operation of the operator by rotating
the Manual Release Lever in a clockwise direction.
Then you can move the gate by hand to open or close
the gate.
Operating the gate by hand is necessary during
installation and is useful during power failures and
other emergencies.
After such an emergency, you re-engage the drive of the
operator by rotating the Manual Release Lever
counterclockwise.
Caution: After you re-engage the drive with the
Manual Release Lever and before you signal the
operator, manually slide the gate leaf in either
direction until the gear is properly aligned and
locked. (You may hear it lock into position.)
This helps to protect the drive gear of your
operator.

8
E1 (Semi-Automatic 1) Mode
The E1 (semi-automatic 1) mode of operation for the
820/860 Operator is designed for users who want to
signal the gate to either open or close. Sending one
signal, either open or A/C, to the gate causes it to open
and remain open until another signal is sent. Sending a
second signal closes the gate.
The basic logic of E1 mode is enhanced to protect both
people and property if anything interrupts the gate’s
movement. What happens after such an interruption
depends on whether the gate is opening or closing when
the interruption occurs and depends on whether the
interruption is a second signal or an obstacle in the
gate’s path.
When a second signal interrupts the gate’s opening, the
gate stops. The gate does not move until yet another
signal is sent. Then the gate closes. If a signal interrupts
the gate during closing, the gate immediately reopens.
If an operator has the RC function and an obstruction
interrupts the gate’s opening, the gate may stop its
movement (depending on the weight of the obstruction
and the adjustment of the clutch). When you send a
signal after the gate stops and after the obstruction is
removed, the gate closes.
WARNING! The pressure the gate leaf applies
to the obstruction is determined by the clutch
adjustment. It is the installer's responsibility to
make sure the clutch is correctly set.
WARNING! An 860 without RC continues to
open against an obstacle. You must install
reversing devices to protect any potential
obstacle against the momentum and weight of
the gate during opening.
If an operator has the RC function and an obstacle
interrupts the gate’s closing, the gate stops its
movement and automatically re-opens. Sending another
signal causes the gate to close.
WARNING! An 860 without RC continues to
close against an obstacle. You must install
reversing devices to protect any potential
obstacle against the momentum and weight of
the gate during closing.
Installing external reversing devices alters the logic of
Ε1 mode operation in the following way: During the
opening cycle, any triggered reversing device is
ignored, that is, the gate continues its opening
movement. During closing, a triggered reversing device
causes the gate to fully re-open. Another signal is then
necessary to close the gate.
E2 (Semi-Automatic 2) Mode
The E2 (semi-automatic 2) mode of operation is like E1
except in the way the gate leaf responds while closing
with reversing devices installed.
In E2 mode, a triggered reversing device while the leaf
is closing causes the leaf to stop. It remains stopped
until the reversing device is no longer triggered, and
then the leaf opens.
A1 (Automatic 1) Mode
The A1 (automatic 1) mode of operation for the
820/860 Operator is designed for users who want to
signal the gate once to open (with an A/C or open
command) and then automatically close after a selected
time.
What happens when A1 mode operation is interrupted
depends on which part of the cycle is interrupted by an
activating signal or obstruction. During the opening
phase, a second signal is ignored; the gate continues its
opening travel. During the pause phase, a signal resets
the pause count to 3 or 5 seconds, depending on the
warning light logic. During the closing phase, a signal
to the gate causes the gate to reopen immediately.
If an obstacle interrupts A1 mode operation during
opening on an operator with the RC function, the gate
stops its movement. When it receives another signal
after the obstacle is removed, the gate then will continue
to open.
WARNING! An 860 without RC continues to
open against an obstacle. You must install
reversing devices to protect any potential
obstacle against the momentum and weight of
the gate during opening.
If during closing an obstacle interrupts A1 mode
operation on an operator with the RC function, the gate
stops its movement and automatically re-opens. Sending
another signal to the gate causes it to complete another
open-pause-close cycle.
WARNING! An 860 without RC continues to
close against an obstacle. You must install
reversing devices to protect any potential
obstacle against the momentum and weight of
the gate during closing.

9
Installing reversing devices has the following effects
on the logic of A1 mode: During the opening phase,
a triggered reversing device is ignored; the gate
continues to open. During the pause phase, a
triggered reversing device stops the count of the
pause phase. The pause count resumes when the
reversing device is no longer triggered. During the
closing phase, a triggered reversing device causes
the gate to immediately reopen.
WARNING! For maximum safety to people
and property when you use A1 mode, use a
non-contact (loop detector or photocell)
reversing device.
A2 (Automatic 2) Mode
The A2 (automatic 2) operating logic is like A1 mode
except in the way a gate leaf responds to triggered
reversing devices when the leaf is fully opened and
when the leaf is closing.
During the pause phase the leaf will close after a 5-sec
delay once the reversing device is no longer triggered.
When the leaf is closing, a triggered reversing device
causes the leaf to stop. When the reversing device is no
longer triggered, the leaf opens.
WARNING! For maximum safety to people
and property when you use A2 mode, use a
non-contact (loop detector or photocell)
reversing device.
S1 (Security) Mode
The S1 (security) mode of operation is similar to the A1
mode with the following exception: If an activating
signal is sent while the gate is in its opening or pause
phases, the gate closes immediately.
WARNING! For maximum safety to people
and property when you use S1 mode, use a non-
contact (loop detector or photocell) reversing
device.
S2 (Security Plus) Mode
The S2 (security plus) mode of operation is similar to
S1 mode except in the way reversing devices operate.
During the pause phase of S2 logic, a triggered
reversing device interrupts the pause count but does not
reset the pause count. The gate continues its pause
phase after the reversing device is no longer triggered,
and the gate then closes when the count has finished.
During the closing phase of S2 logic, a triggered
reversing device stops the gate. When the reversing
device is no longer triggered, the gate reopens.
WARNING! For maximum safety to people
and property when you use S2 mode, use a non-
contact (loop detector or photocell) reversing
device.
B Mode
The B mode of operation is designed for a gate system
that is attended by a person who accesses a three-button
switch to open, close, or stop the gate leaf.
Essentially, in B mode you must press the switch for the
movement you desire. For example, if you want the gate
to open, you must press the open button on the switch.
The exception to the "you get what you press" logic is
that you must always stop the gate while it is in motion
if you want to change the direction of the gate's travel
before the gate reaches its limit.
Note: The A/C signal functions as a close signal
in the B mode.
Any installed reversing devices will work only during
the closing phase of the gate's movement. Reversing
devices will have no effect during the opening of the
gate.
C Mode
The C mode of operation requires a person to attend a
two-button (at least) switch to open and close the gate.
In C mode, the gate leaf moves only while the activating
button is being pressed. Thus, the attendant must press
the activating button for as long as is necessary for the
gate leaf to fully open or fully close.
Note: The A/C signal functions as a close signal
in the C mode.
If a three-button switch is used with C mode, the stop
button will stop the gate whenever it is pressed. Any
reversing devices installed will work only during the
closing phase of the gate's movement.

10
E1 Logic: How the gate leaf behaves
Leaf Signal
status Open or A/C1Stop Reversing
Closed Opens no effect no effect
Open Closes no effect no effect
Closing Opens Stops Opens
Opening Stops Stops no effect
Stopped Closes2no effect no effect
1An A/C signal causes the leaf to partially open.
2The leaf opens if reversing devices are triggered.
E2 Logic: How the gate leaf behaves
Leaf Signal
status Open or A/C1Stop Reversing
Closed Opens no effect no effect
Open Closes no effect no effect
Closing Opens Stops Stops. Opens
when reversing
device no
longer triggered
Opening Stops Stops no effect
Stopped Closes2no effect no effect
1An A/C signal causes the leaf to partially open.
2Leaf opens if reversing devices are triggered.
A1 Logic: How the gate leaf behaves
Leaf Signal
status Open or A/C1Stop Reversing
Closed Opens, pauses,
and closes
no effect no effect
Open Resets pause
count, pauses,
and closes
Stops
pause
count
Freezes the
pause count until
reversing device
no longer
triggered
Closing Opens Stops Opens
Opening no effect Stops no effect
Stopped Closes no effect no effect
1An A/C signal causes the leaf to partially open.
A2 Logic: How the gate leaf behaves
Leaf Signal
status Open or A/C1Stop Reversing
Closed Opens, pauses,
and closes
no effect no effect
Open Closes Stops
pause
count
Closes after 5 sec
when reversing
device no longer
triggered
Closing Opens Stops Stops. Opens
when reversing
device no longer
triggered
Opening no effect Stops no effect
Stopped Closes no effect no effect
1An A/C signal causes the leaf to partially open.
S1 Logic: How the gate leaf behaves
Leaf Signal
status Open or A/C1Stop Reversing
Closed Opens, pauses,
and closes
no effect no effect
Open Closes Stops
pause
count
Closes after 5 sec
when reversing
device no longer
triggered
Closing Opens Stops Stops. Opens
when reversing
device no longer
triggered
Opening Closes Stops no effect
Stopped Closes no effect no effect
1 An A/C signal causes partial opening.
S2 Logic: How the gate leaf behaves
Leaf Signal
status Open or A/C1Stop Reversing
Closed Opens, pauses,
and closes
no effect no effect
Open Closes Stops
pause
count
Freezes the
pause count until
reversing device
is no longer
triggered
Closing Opens Stops Stops. Opens
when reversing
device no longer
triggered
Opening Closes Stops no effect
Stopped Closes no effect no effect
1 An A/C signal causes partial opening.
B Logic: How the gate leaf behaves
Leaf Signal
status Open A/C1Stop Reversing
Closed Opens no effect no effect no effect
Open no effect Closes no effect no effect
Closing no effect no effect Stops Stops
Opening no effect no effect Stops no effect
Stopped Opens Closes no effect no effect
1An A/C signal functions as a close signal in B logic.
C Logic1: How the gate leaf behaves
Leaf Signal
status Open A/C2Stop Reversing
Closed Opens no effect no effect no effect
Open no effect Closes no effect no effect
Closing no effect Closes Stops Stops
Opening Opens no effect Stops no effect
Stopped Opens Closes no effect no effect
1 The leaf moves only while a switch button is pressed.
2An A/C signal functions as a close signal in C logic.

11
Installation Instructions
Note: The following installation instructions
assume you are fully capable of installing an
electronic operator for a gate. This manual does not
instruct you in designing a gate, installing a gate
(whether on masonry, wood, or metal posts), or
basic electrical wiring. The installation tasks
discussed in this manual are tasks peculiar to the
820/860 Operator.
Before you install the 820 or 860 Operator, you must
insure that the gate leaf falls within the limitations
outlined in the section "Technical Data." Installing the
820 or 860 Slide Gate Operator consists of the
following steps:
•Setting the forms for the conduit and concrete
•Mounting the operator on the foundation plate
•Connecting electrical power
•Setting DIP switches
•Setting the limit switches
•Installing other accessories
•Removing the bleed screw
•Adjusting the clutch of the operator
Set the Forms for the
Conduit and Concrete
Ground Mounting
You need to set the concrete forms for the footing a
minimum of 18 in. (46 cm) below the ground level or
just below the frost line, whichever is greater (see
Figure 4). (Your soil type conditions will also determine
the size of the cement footing.)
Within the form boundaries, you must locate the
electrical conduit so that it protrudes through the
foundation plate and above the top of the foundation
plate about 1/2 in. (1.3 cm).
If you choose to supply your own foundation plate, be
sure to use steel that is at least 1/8 in. (0.3 cm) thick and
be sure your conduit hole is large enough to
accommodate two conduits, one for high voltage and
one for low voltage. In addition, your foundation plate
must be anchored with bolts that extend at least 3 5/8 in.
(9.2 cm) into the cement. Note that the optionally
available FAAC foundation plate has steel legs 3 5/8 in.
(9.2 cm) long that bend to a vertical position instead of
cement footing anchor bolts (see Figure 5).
After the concrete is poured in the forms and before it
sets, place the foundation plate in the cement so that the
top of the plate is level and flush with the top of the
cement. Make sure the electrical conduit protrudes
above the foundation plate and cement.
Allow the concrete to set a minimum of two full days
before you mount the operator.
Cantilevered Mounting
For a cantilevered gate installation in which you supply
your own mounting plate and pedestal, keep the
following in mind:
Use a minimum of 3/16 in. steel for your plate and a 4 ×
4 in. square (to prevent rotation) tube for your pedestal.
The mounting plate must accommodate two electrical
conduits, one for high voltage and one for low voltage.
Encase a minimum of 18 in. of the height of your
pedestal in a cement footing that is at least 16 ×12 ×
18 in. (Your soil conditions will also determine the size
of the cement footing.)
Within the form boundaries for your cement footing,
you must locate the electrical conduits so that they
protrude up through the pedestal and above the
mounting plate about 1/2 in. (1.3 cm).
Allow the concrete to set a minimum of two full days
before you mount the operator.
Mount the Operator
on the Foundation Plate
Follow the instructions below that apply to the version
of the operator you are installing.
Chain Operator
First, attach the nuts to the leveling bolts. Then slip the
leveling bolt nuts into the hexagonal holes in the four
corners on the bottom of the operator.
As shown in Figures 4 and 6, place the operator on the
foundation plate with the sprocket facing the gate with
approximately 15/16 in. (2.4 cm) between the inside
edge of the gate frame (where you mount the chain
bracket) and the center of the drive sprocket.
Secure the gate chain brackets to the vertical front and
back posts of the gate leaf using the U bolts provided.
Set the height of the gate chain brackets so that the
centers of the idler sprockets located on either side of
the drive sprocket are slightly higher than the center line
of the brackets. This alignment compensates for any sag
in the chain. You can now install the mounting bolts to
secure the operator to the foundation plate.

12
Place the chain over the top of the idler sprockets and
under the drive sprocket (see Figure 7).
Rack and Pinion Operator
First, attach the nuts to the leveling bolts. Then slip the
leveling bolt nuts into the hexagonal holes in the four
corners on the bottom of the operator.
As shown in Figure 4, place the operator on the
foundation plate with the pinion facing the gate with
approximately 1 3/8 in. (3.5 cm) between the inside
edge of the gate frame (where you mount the rack
spacers) and the center of the drive pinion.
Next you need to set the height for the rack by adjusting
the leveling bolts. Raise the operator with the leveling
bolts at least enough so that you will later be able to
lower the operator 1/16 in. (1.5 mm) (this is the
clearance you need for the rack to move over the
pinion). Now you can secure the operator to the
foundation plate with the mounting bolts.
Prepare the rack sections by installing the spacers,
washers and bolts on the rack sections as shown in
Figure 8. The bolts should be centered in the slots of the
rack sections.
Rack and pinion: 1 3/8 in.
Chain: 15/16 in.
9 1/4 in.
(23.5 cm)
0–2 in.
(0–5 cm)
1 9/16 in. (4 cm)
between the leaf
and foundation
plate
6 1/2 in.
(16.5 cm)
1/2 in.
(1.3 cm)
Leveling bolt
Foundation plate
mounting bolt
Gate leaf
(a) Gate leaf
Foundation
plate
Hole for
electrical
conduit
(b)
To the frostline
or 18 in. (45.7
cm) minimum
Foundation plate
leg extends into the
concrete 3 5/8 in.
(9.2 cm)
Cement founda-
tion should be
16 x 12 in. (40.6
x 30.5 cm)
(3.5 cm)
(2.4 cm)
{
Figure 4. The concrete footing and 820/860 Operator in relation to the gate leaf:
(a) top view and (b) side view

13
1. Insert the anchor bolts for the operator up
through the foundation plate
2. Bend the legs down so they are vertical.
3. Bend the feet on the legs to a horizontal
orientation.
Figure 5. Preparing the optional FAAC
foundation plate
Gate
Outside
Inside
Chain bracket
U bolt
(2 required)
(2 required) Chain
Operator
15/16 in.
(2.4 cm)
Figure 6. Dimensions for installing the chain,
top view
Figure 7. How to install the chain around the
sprockets
Gate
Spacer
Bolt
Rack
Washer
Figure 8. Placement of spacer, washer, and bolt
(a) Welding a rack spacer to the gate leaf
(b) Note use of inverted rack section
Invert a rack
section to align
and space each
additional rack
section
Figure 9. Welding rack sections

14
To mount the rack , slide the gate leaf open as far as it
will go. Then use the Manual Release lever to disengage
the operator's drive motor (turn the lever clockwise; see
Figure 2).
Lay a prepared section of rack on the pinion making
sure of the following:
•The teeth of the rack are properly engaged.
•The end of the rack is even with the end of the
gate leaf.
•The rack is level.
Spot weld the spacer nearest the pinion to the gate leaf
(see Figure 9). Then pull the gate leaf toward the closed
position until the pinion is directly under the spacer on
the opposite end of the rack section and spot weld that
spacer.
After spot welding both end-of-rack spacers to the gate
leaf, you can spot weld the center spacer to the gate
leaf.
For the next rack section, place its end next to the end
of the previously installed section. Use an inverted
section of rack to properly align and space the next rack
section. Again be sure that the teeth of the rack are
properly engaged, that the two sections of rack are
aligned, and that the rack section is level.
Spot weld the new section of rack to the gate leaf,
welding the end closest to the previously welded section
first, the other end of the rack second, and the center
last. Spot weld all sections of rack in the same manner.
After spot welding the rack to the gate leaf, you need to
move the gate from the fully closed to the fully opened
position several times to make sure the rack moves
smoothly along the pinion. If it moves smoothly, finish
welding the spacers to the gate.
Finally, lower the operator about 1/16 in. (1.5 mm) and
again test the operation of the rack while the gate moves
from the fully opened to the fully closed position.
Connect the
Electrical Power
Note: Be sure to ground the operator system
and protect the entire gate system with a main
power breaker switch. Refer to your local
electrical codes and ensure they are met when
you select these components.
The installer is responsible for providing a power cable
with ground protected by a circuit breaker from the
main 220 VAC power source to the operator.
All wiring should conform to applicable electrical codes
and all wiring and fittings should be weatherproof
and/or suitable for burial. Figure 10 shows a typical
gate
1. 746 Operator
2. Photocells
3. 3-button switch
4. Warning lamp
5. Switch
6. Main power circuit breaker
7. Junction box
1. 844 Operator
2. Photocells
3. 3-button switch
4. Warning lamp
5. Switch
6. Main power circuit breaker
7. Junction box
Figure 10. Typical gate system layout for an 820 or 860 Operator
Locate switches at
least 10 ft from the gate
820/ 860 Operator

15
system using the 820 or 860 Operator; the figure also
lists the required wire gauges between gate
components. Figure 11 shows the wiring necessary
between the operator and the main power source.
To connect the power source to the operator in a non-
pedestal, non U.L. Listed configuration, first remove
the cover of the operator. Be sure the main power
source is turned off, and connect the main power to
terminals 13 and 14 on the control panel (see Figure
12). Connect the ground wire from the main power
source to the operator ground (see Figure 2).
Set the DIP Switches
WARNING! Turn the main power off before
you make any electrical connections or set any
switches on the control panel.
Eight DIP switches on the control panel control the
following:
•The operating logic of the operator
•The pause time of the gate leaf between
opening and closing
•The operation of an installed warning light
•The gate orientation, the direction of the gate
leaf's travel in closing
To access the DIP switches, turn the main power off
and remove the cover of the operator (remove the
screw in the center of each side). Then remove the
plastic cover over the control panel.
If you set the DIP switches while the main power to
the operator is off, turning the power on resets the
control panel to the settings you have made. If you set
any DIP switches while the main power is on, then
you must press the RESET button for the control panel
to accept your settings. The directions for setting the
DIP switches follow.
Conduit
Conduit
High voltageLow voltage
Ground
terminal
strip
Switch
box
Low-voltage
wires
Yellow/green wire leaves
the ground terminal
switch, runs through the
switch box, and attaches
to the grounding lug on
the plate holding the
control panel inside of
the operator
Red wire
Black wire
L E G E N D
Figure 11. Required wiring between the operator and the main power supply

16
J1 Decoder connector LD1 (OPEN) Open LED
J2 Low-voltage terminal Block LD2 (A/C) Partial open/close LED
J3 ADL connector LD3 (STOP) Stop LED
J4 FAAC lamp output terminal block LD4 (FTSW) Safety LED
J5 Capacitor connector LD5 (ADL) Limit switch alarm LED
J6 Electric motor connector LD6 (FCA) Opening limit switch LED
J7 Transformer primary connector LD7 (FCC) Closing limit switch LED
J8 Transformer secondary connector LD8 (S) Power LED
J9 High-voltage terminal block P1 Opening limit switch programming button
F1 Motor fuse F1, 5 amps, P2 Closing limit switch programming button
F2 Accessory fuse F2, 1.6 amps P3 Limit switch/reset programming button
DS1 DIP switch assembly
Figure 12. The layout of the 826 MPS control panel
Operating Logic
Switches S1, S2, and S3 allow you to set the operating
logic of the gate operator (see the section "Operating
Logic" for a complete discussion of the logical
operating modes). Use the table below to set the three
switches.
Logic S1 S2 S3
E1 On On On
E2 On Off Off
A1 Off On On
A2 Off Off Off
S1 Off Off On
S2 On Off On
B On On Off
C Off On Off
Pause Time
Switches S4 and S5 allow you to set the pause time
between opening and closing for those logical operating
modes that have a pause time defined by the operator.
Use the table below to set your S4 and S5 switches.
Note: The warning light is on during the last 5
sec of the pause time according to the setting of
switch S6.
Switch Pause Time, sec
S4 S5 A1, A2, or
S2 Logic:
S1 Logic:
On On 5 15
Off On 10 30
On Off 30 60
Off Off 120 180

17
Warning Light Operation
The function of a warning light depends on how you
connect the light to the 826 MPS terminal strip and how
you set DIP switches S6 and S7. Use the following
tables at the bottom of the page to decide how to set up
your warning light.
Caution: Setting switch S7 to on delays the
opening response of the gate by 5 sec in all
logical operating modes and delays the closing
response in E1 and E2 for 5 sec while the
warning light behaves according to the setting
of switch S6 for closing.
Gate Orientation
Caution: If you have already defined the gate's
midpoint or set the limit switches and if you
want to change the gate orientation, set switch
S8 only when the ADL light (LED LD5) is
illuminated.
Note: Changing the setting of DIP switch S8 after
you have set the limit switches requires you to set
the limit switches again.
Switch S8 is used to set the gate's orientation. You must
set switch S8 before you set the limit switches for fully
opened and fully closed positions of the gate leaf.
While standing on the same side of the gate leaf as the
operator is located (see Figure 13), determine whether
the gate leaf moves to the left or right when closing and
set the switch according to Figure 13.
Set the Limit Switches
WARNING! Setting the limit switches
requires the main power to the operator to be on
while you work with the control panel. Do not
touch other parts of the operator with the main
power on. Observe standard rules of electrical
safety while setting the limit switches.
Caution: Take great care in setting the limit
switches, in particular the midpoint of the gate
leaf's travel. Failure to properly set the limit
switches can result in mechanical failure of the
limit switch module or can make the gate leaf
incapable of fully opening or fully closing.
Warning Light Wired to Terminals 8 and 9
Switches Behavior of Warning Light According to Gate Leaf Status
S6 S7 closed 5-sec before
opening
opened or
opening
5 sec before
closing
closing
on off off on on on on
on on off on on on on
off off off on on on flashes
off on off on on flashes flashes
Warning Light Wired to Terminals 8 and 10
Switches Behavior of Warning Light According to Gate Leaf Status
S6 S7 closed 5-sec before
opening
opened or
opening
5 sec before
closing
closing
on off on on off off off
on on on off off off off
off off on on off off flashes
off on on off off flashes flashes

18
You have to define the gate leaf's midpoint, its fully
opened position, and its fully closed position for the
internal limit switches.
To set the limit switch module, be sure the gate is in
manual mode (turn the Manual Release Lever
clockwise).
S8 is ON S8 is OFF
(a) Chain drive
S8 is OFF S8 is ON
(b) Rack and pinion drive
Figure 13. Set DIP switch S8 for your gate:
(a) For a chain drive, S8 is ON when the gate
closes to the left and OFF when the gate closes
to the right; (b) for a rack and pinion drive, S8
is OFF when the gate closes to the left and ON
when the gate closes to the right
Define the Midpoint
Move the gate leaf by hand to exactly the half-opened
position. The longer your gate leaf, the more important
it is that you be precise in positioning the gate leaf
exactly at the half-opened position.
With the leaf in exactly the half-opened position, locate
the retaining screw for the plastic tab that disengages
the limit switch module from the operator (see Figure
14). Remove the retaining screw that holds the plastic
tab.
Caution: Do not pull the plastic tab up unless
the gate leaf is opened exactly halfway.
Now turn on the power to the gate operator. The ADL
status indicator LED should be on. If it isn’t on, call us
before proceeding. The light should be on to confirm
the working status of the ADL board.
The illuminated ADL LED also indicates the the
operator is at its midpoint of potential travel. So, turn
off the main power and pull the plastic tab up to engage
the limit switch module.
Once you remove the plastic tab, you must test whether
you properly defined the midpoint. To test the midpoint,
turn on the main power and move the gate leaf by hand
first in one direction and then in the other. The ADL
LED should turn off when the gate leaves the midpoint
and turn on when the gate is at the midpoint of travel.
1
2
1. Remove the retaining screw.
2. Pull the plastic tab up only if
the gate is opened exactly
halfway
Caution: Failure to remove the plastic tab or failure
to remove it properly can result in the mechanical
failure of the operator.
Figure 14. Defining the midpoint

19
Next, you can set the fully opened and fully closed
positions for the gate leaf. You may set the limit
switches in either order, but be sure to set both limit
switches.
Caution: If you have not removed the plastic
tab, you cannot set the limit switches for the
fully opened or fully closed positions.
Set the Opened Limit
Caution: Before setting a limit switch, verify
that your gate does not exceed the limits for
which your operator is designed. Refer to the
technical data on page 4.
Set the opened limit switch by doing the following.
Move the gate leaf by hand to the fully opened position.
After the gate is in the fully opened position, locate the
FCA and RESET buttons on the control panel. Press the
FCA button and hold it. Then also press the RESET
button. Pressing both buttons, hold them down for a
couple of seconds. Then release only the RESET button
and continue to press down on the FCA button.
You should then hear one click from the panel and see
the ADL status indicator LED blink once. Also, the
FCA LED should go out to further confirm that you
have set the opened limit. Now you can release the FCA
button. You have set the limit switch for the fully
opened position.
If after releasing the FCA button and before you move
the gate you hear continual clicking and the ADL light
blinks continually, proceed to set the closed limit.
Set the Closed Limit
Caution: Before setting a limit switch, verify
that your gate does not exceed the limits for
which your operator is designed. Refer to the
technical data on page 4.
To set the closed limit switch, do the following. Move
the gate leaf by hand to the fully closed position. After
you have the gate in the fully closed position, locate the
RESET and FCC buttons on the control panel. Press the
FCC button and hold it down. Then also press the
RESET button. Pressing both buttons, hold them down
for a couple of seconds. Then release only the RESET
button, continuing to press down on the FCC button.
You should then hear one click from the panel and see
the ADL status indicator LED blink once. Also, the
FCC LED should go out to further confirm that the
closed limit has been set. Now you can release the FCC
button. You have now set the limit switch for the fully
closed position.
If after releasing the FCC button and before you move
the gate you hear continual clicking and the ADL light
blinks continually, proceed to set the opened limit.
Note that you will not need to reset the limit switches if
there is a power failure. The limit switch module
remembers the limit switch settings.
Relocating the Midpoint
Do not relocate the midpoint on your gate unless it is
absolutely necessary. Relocating the midpoint of the
gate leaf's travel is sometimes necessary: when an
especially long gate leaf does not open or close far
enough or when you are installing the operator on a
different gate. An especially long gate leaf makes it
possible to misjudge the midpoint of the leaf's travel.
To relocate the midpoint, disengage the drive of the
operator (turn the Manual Release Lever clockwise)
with the main power on. Then move the gate leaf by
hand until the ADL light illuminates. (The ADL light is
on when the operator is at its midpoint.) Now turn the
main power off so that you can re-install the plastic tab.
WARNING! Turn the main power off before
you re-install the plastic tab.
To re-install the plastic tab, first turn off the main power
to the operator. Then, reach inside the operator from the
gate leaf side and find the spring-loaded shaft that is
below the Limit Switch Module. Press the spring loaded
shaft away from the gate leaf while you insert the
plastic tab down and over the other end of the shaft.
Release the end of the shaft you were pressing so that it
will grab the plastic tag and thus re-install it. If the shaft
springs back toward the leaf, you have not properly
installed the plastic tab.
Once the plastic tab is re-installed, you can re-establish
the midpoint of the gate's travel as described above.
Then you need to set both the opened and closed limits.

20
Install Other Accessories
WARNING! Turn the main power off before
you make any electrical connections or set any
switches inside the operator.
You install other accessories to the 820 or 860 Operator
according to the terminal wiring diagram shown in
Figure 15.
Terminals 1 and 6 are the common for all installed
opening, stop, and reversing devices. Terminal 2 is for
your normally open (N.O.) opening device. Terminal 3
is for an N.O. partial opening (A/C) device or for an
N.O. closing device, depending on the logical mode of
operation you choose. If you do not install one of the
normally closed devices (a stop or reversing device),
then you need to connect its terminal (4 or 5,
respectively) to terminal 1 (or 6) with a jumper.
Terminal 6 is the common you should use for any 24
VDC accessory. Terminal 7 supplies +24 VDC.
Terminals 8, 9, and 10 are for installing a warning light.
Terminal 8 is common. The warning light function
differs depending on whether you use terminal 9 or 10.
See the tables on the previous pages for more detail.
Terminals 11 and 12 supply high-voltage power when
the motor is running. You connect your main power
source to terminals 13 and 14.
Note: Your standard 220 VAC power source
meets the specification for 230 VAC, +6 or
-10%.
If you are installing an 860 Operator without RC, it is
especially important that you install additional reversing
devices to compensate for the missing RC function.
Three sets of photocells can improve entrapment
protection (see Figure 16).
One set of photocells should protect the area where the
gate moves on opening and should be connected
between terminals 1 and 4 for stop logic. The other two
sets should protect the area of the closing gate, inside
and outside the property line, and should be connected
in series to terminals 5 and 6.
Figure 15. The terminal strip on the 826 MPS control panel
SAFETY*
220 VAC,
±10%, 60 Hz
*If a STOP or SAFETY device is not installed, connect
that terminal to terminal 1 with a jumper.
Warning Light
REVERSE