- Industrial & lab equipment
- Personal safety & protection
- Fire protection
- LCN
- 7900
- Installation instructions
7900 | LCN ES7982 Series Installation Instructions
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LCN 7900, a versatile control box, offers reliable automatic door opening solutions for various applications. It features regulated air supply to auto-equalizers, adjustable time delay for air valve energization, and compressor activation time adjustment. The control box can handle up to two electric strikes, allowing for flexible integration with electric latching hardware.
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*23655*
23655
Model ES7982
Control Box
L For closer information see closer installation instruction sheet
Typical Electric & Air Supply Hook Up
120V AC
INPUT
12V DC TO
ACTUATORS
REGULATED AIR FROM
CONTROL BOX TO
AUTO-EQUALIZERS
Installation Instructions
1 Locate box on interior of building within 50 tubing feet of the farthest door to be controlled. Box must be in a clean, dry, well ventilated place where temperatures do not exceed 120°F or fall below
35°F.
2 Mount box to a structurally sound surface using screws provided as shown on page 2 with air fittings on left side as shown. Do not mount box upside down or on a horizontal plane.
3 Refer to instructions packed with actuators and connect leads to terminals 6, 8, 9, and 10 as required.
4 Connect unpowered 120V AC input to terminals 3,
4, and ground screw. (Line side to terminal 3, neutral side to terminal 4 and ground wire to ground screw).
If door control is on a fire door, 120V AC input must be interrupted by the fire alarm panel when in alarm.
When dry auxiliary fire alarm contacts are used, remove shunt from terminals 1 and 2 and connect to dry contacts of fire detector or alarm panel. Terminals
1 and 2 are in series with line side of 120V input.
5 Turn on power. Air valves and compressor will operate one cycle when power is applied.
6 Air pressure output has been preset at factory. If more air pressure is required to adequately open doors, regulate air adjustment valve on pump as shown on page 3.
7 Adjust time delay to keep air valve energized by turning adjustment wheel on timer modules “A” & “B”
(CW to increase - CCW to decrease). The LED (light) on the timer module indicates the valve is energized.
The time can be adjusted from 0-30 seconds. 10 seconds is a “normal” delay.
L TIMER MODULE “A” AND “B” MUST OPERATE LONGER
THAN TIMER MODULE “P”.
8 Adjust timer module “P” to keep compressor activated for the necessary amount of time to open the door.
This can be done by rotating the adjusting wheel.
(CW to increase - CCW to decrease). The LED (light) on the timer module indicates the compressor is energized. The compressor should not run more than
1-3 seconds longer than the time required to open the door.
9 Test actuators to ensure wiring and tubing are properly connected.
1
A
OUTLET B OUTLET A
AIR
FILTER
!
CAUTION
DO NOT MOUNT BOX UPSIDE
DOWN OR IN HORIZONTAL
POSITION. LOCATE WHERE
TEMPERATURES DO NOT
EXCEED 120°F OR FALL
BELOW 35°F
INSTALL BOX WITH SIX TAPCON
CONCRETE SCREWS 3/16 x 1 1/4
DRILL 5/32 HOLE 1 1/4 DEEP
WITH CARBIDE TIPPED
CONCRETE DRILL BIT
TERMINAL "10" IS
COMMON TO ALL
ACTUATORS
12V DC OUTPUT
!
CAUTION
COMPONECTS INSIDE CONTROL
BOX WILL BE HOT TO TOUCH
UNDER NORMAL OPERATION.
ALLOW BOX TO COOL DOWN
BEFORE MAKING ADJUSTMENTS.
AIR FILTER SHOULD BE
INSPECTED EVERY SIX
MONTHS. IF FILTER IS
DAMAGED, CONTACT LCN
FOR REPLACEMENT.
TRIGGER "A"
TRIGGER "B"
!
WARNING
HAZARDOUS VOLTAGE
CAN SHOCK AND
CAUSE SEVERE INJURY
Disconnect power before making any electrical connections or performing maintenance.
!
DANGER
ELECTRICAL DATA
INPUT = 120V AC @ 5 AMPS
POWER CONSUMPTION 600 WATTS
OUTPUT IS 12V DC (250 mA MAX. LOAD)
CONTROL BOX MUST BE CONNECTED TO EARTH GROUND
NEUTRAL 120V AC
LINE
INPUT
TO FIRE
ALARM
SHUNT
*
REMOVE THIS SHUNT
ONLY WHEN CONNECTING
TO NORMALLY CLOSED
FIRE ALARMS CONTACTS
2
Air Pressure Adjustment
A
B
1 Loosen lock nut. (A)
2 Turn outer valve (B) to regulate air pressure.
3 Tighten lock nut.
3
Symptom
No Power Opening.
Does not open or fully open.
Opens too slow or not at all.
Power opening will not time out.
Power opening timing out too soon.
Installation Troubleshooting Chart
Possible Cause Suggested Remedy
No power to control box/blown fuse.
Actuator(s) not connected properly.
Fire alarm system causing open circuit on terminals 1 & 2.
No input to Auto-Equalizer operator.
Air lines obstructed with dirt or ice.
Air valves not working.
Compressor not working.
Verify 120VAC 60HZ power is present at terminals 3 & 4 on control box terminal strip. Check fuse. Replace only with 5 amp
(3AG type) fuse.
Be sure a timer module board is firmly in place in “A,” “B” & “P” slots. Operate actuator(s) LED on timer module should light when actuator is used. The LED on timer “P” should light whenever
“A” or “B” is lit. If not, momentarily short actuator terminals 6 &
10 and 8 & 10 in the control box. If LED lights, check wiring to actuators for an open circuit. If it does not light, check for voltage at terminals 9 & 10. Voltage should read from 11.75 to 13.25V
DC. If there is no reading, disconnect leads from terminals 9 &
10. Short actuator terminals 6 & 10 and 8 & 10. If LED lights, check for short circuit in actuators.
Shunt terminals 1 & 2 with power off. Restore power. If control operates when actuator terminals in the control box are shorted, an open circuit exist in wiring to fire alarm. When Auto-Equalizer is not used with fire alarms, terminals 1 & 2 must be permanently shorted with a shunt.
IMPORTANT! When Auto-Equalizer is connected to fire alarm, make sure shunt is removed from terminals 1 & 2. Terminals 1 &
2 are one leg of 120V line.
Disconnect tubing from Auto-Equalizer operator. Try actuator and verify that air is coming out of tubing. If not, trace tubing to control box, checking for breaks or kinks in air line.
Clean or thaw lines and reroute if necessary. Eliminate dips near cold zones.
Make sure air valve leads are plugged into main board. (Be sure valves in system are plugged into connectors “A” & “B”).
Make sure compressor leads are plugged into main board. (Be sure compressor is plugged into connector “P”).
Control box exhaust restricted.
Exhaust muffler may be clogged by dirty air or accidental painting. Clean in alcohol or mineral spirits.
Inlet filter clogged.
Replace filter element (Contact LCN for replacement).
Scanner maintaining signal to control box.
Switch circuit maintaining contact.
Make sure lenses are clean and there are no obstructions in front of scanner. Model 909 or 939 proximity scanner may “see” an opposite wall. Adjust range as described earlier.
Check for short circuit or error in wiring to switch or scanner.
Air valve blocked open with contaminant.
Air compressor needs readjustment.
Timer cards not set properly.
Cycle valve several times by momentarily shorting actuators in the control box. This should clear valve.
See page 2 for regulation instructions.
Set timer cards “A” & “B” for max. time. Set timer card “P” for min. time. Slowly increase card “P” until “time-out” is 1-3 seconds after door is fully open. Decrease timer card “A” & “B” to achieve desired time delay before closing. (Make sure “P” times out before “A” & “B”).
4
!
WARNING
Model ES7982 for use with Electric Latching Hardware
ES7982 - 2 electric strikes maximum
HAZARDOUS VOLTAGE
CAN SHOCK AND
CAUSE SEVERE INJURY
Disconnect power before making any electrical connections or performing maintenance.
BLK
K1
BLK
BLK K2
BLK
BRN
PINK
POWER SUPPLY
BY OTHERS.
(DO NOT use
LCN 12VDC power
VIO
PINK
WHITE - RED
ELECTRIC STRIKE
DOOR "B"
WHITE - BROWN (N.C.)
WHITE - VIOLET (N.O.)
BROWN (N.C.)
ELECTRIC STRIKE
DOOR "A"
WBRN
WVIO
WRED
VIOLET (N.O.)
VIOLET / WHITE - VIOLET WIRE N.O.
FAIL SECURE STRIKE (N.O. CONTACT)
Strike releases when energized. Remains locked in alarm or power failure. (Manual release hardware required to open door in alarm or power failure.)
BROWN / WHITE - BROWN WIRE N.C.
FAIL SAFE STRIKE (N.C. CONTACT)
Strike releases with alarm or power failure.
Remains lached with power on.
(Not compatible with UL listed fire door.)
Customer Service
1-877-671-7011 www.allegion.com/us
5
© Allegion 2014
Printed in U.S.A.
23655 Rev. 05/14-e
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