ACSI Gemini Locking Systems Catalog Series 8500 System

User Manual: ACSI Series 8500 Gemini Locking System Catalog Literature

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A C S I

G E M I N I L O C K M O D I F I C AT I O N L I S T I N G

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(INDICATES LOCK SETS THAT ARE UL LISTED)

Note: If you do not find the lock of your choice listed, please consult with our factory engineering staff.
We may request that you send a sample for further evaluation.
Arrow

Corbin Russwin

Schlage

AM17
BM17

2055

L9050
L9070
L9080*

*L9080 must be supplied with extra spring cage to compensate for lever sag of outside trim.

G E M I N I C O M PA R I S O N C H A RT
ACSI - Gemini

Fail Safe
8500-M1-PL
8500-M2-PL
8500-M1 or M2-PL*
Fail Secure
8500-M1-PUL
8500-M2-PUL

Corbin Russwin

SDC Hitower

ML20950, ML20906
ML20960, ML20907

7550, 7540
7530
7510, 7520

ML20970, ML20908
ML20980, ML20909

7570
7560

*Please consult the factory for proper part number.

ACSI

Description

SDC

CLS, OLS
QC
302-03-02

Monitoring
Quick-Connect Cable
Mortar Guard for 2” Face Frame

9A, 69A
SC-10
7500-EB-S

Operator Specifications
Electrical
8500 Series
24 volt @ 0.6 amp
Monitoring Contact Rating
30 VDC (only) @ 0.5 amp

L O C K I N T O T H E A C S I A D VA N TA G E
L O C K I N T O T H E A C S I A D VA N TA G E

S E R I E S

8 5 0 0

G E M I N I®

L O C K I N G

S Y S T E M S

2720 Clark Avenue • St. Louis, Missouri 63103 • 1-800-753-5558 • 314-652-5588 • FAX: 314-652-2090 • WWW.ACSI-INC.COM

A C S I

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SERIES 8500 G E M I N I ® L O C K I N G S Y S T E M
The patented ACSI Gemini Locking System
provides safety and security for stairtower doors or
controlled areas where both locking and latching
are required. The Gemini System allows remote
electric locking or unlocking while conforming to
life-safety codes. The System consists of two
components: a Gemini modified Mortise Lockset
and a frame mounted Gemini Operator.
Series 8500 Typical Installation
115V, INPUT

SERIES
1440
POWER
SUPPLY

WIRES IN CONDUIT
(IF FRAMES ARE FILLED)

FIELD SPLICE

SERIES
1300
DOOR
CONTROL

NO SPECIAL
DOOR PREPS.

66% FEWER
FIELD
CONNECTIONS

GEMINI
OPERATOR

302-03-02
MORTAR GUARD
RECOMMENDED

STANDARD
HINGES

NO ELECTRIC
HINGE REQUIRED

NO SPECIAL
PREPARATION

MORTISE LOCK
WITH GEMINI
MODIFICATION

Features
• UL Listed Gemini Mortise Lock - no special
door prep
• UL Listed Gemini Operator located in the frame
• Ability to work with a wide range of mortise lock
manufacturers:
- Arrow
- Corbin Russwin
- Schlage
• Fail Safe (Power Lock)
- Outside trim is locked when power is applied
and unlocked when power is removed (storeroom function when energized). Lockset will
unlock in event of power failure (passage
function).
• Fail Secure (Power Unlock)
- Outside trim is unlocked when power is
applied and locked when power is removed.
Lockset will lock in event of power failure.
• 24VDC, 24VAC
• Mechanical Key Override
- When key cylinders are provided in the locks,
the latchbolt may be momentarily retracted with
key even though electrically locked.
- Note: Locks that are electrically unlocked may
not be locked via the key cylinder.
• Interface with life-safety systems
• Easy installation: Gemini operator fits easily into
2” face frames. Only one wiring termination.
• Optional quick connect cable
• Continuous duty solenoids
• Heavy duty stainless steel housing
• Security Monitoring available
• Interface with Life-Safety Systems

HOW TO ORDER
1
Model

8500
8500F

2
Lock
Type

3
Control
Mode

M1
M2
E

PL
PUL

4
Voltage

24VDC
24VAC/DC

5
Quick
Connect
Cable

6
Security
Monitoring

7
8
Finish Handing

QC

CLS
OLS

26D

LH
RH
LHR
RHR

L9070

QC

CLS

26D

LH

L9070

115VAC
Example:
8500
M1

PL

24VDC

9
Lock
Mfg.
Part No.

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HOW TO ORDER (cont.)
1. Gemini Operator

Model
8500
8500F

2. Lock Type
Model
M1
M2
E

Description
The standard Gemini operator is
designed for 2” frame face
applications and fits a standard ANSI
4-7/8” frame prep.
Also designed for 2” frame face
applications, this operator is supplied
with an oversized strikeplate for easy
installation in retrofit applications.

Description
Mortise lock with one side (lever or
knob) locked
Mortise lock with both sides (lever or
knob) locked
Mortise exit with outside locked only

3. Control Mode

Model
PL
PUL

Description
Power Lock (Fail Safe)
Power Unlock (Fail Secure)

4. Voltage or Air Powered Operator

The Gemini can be supplied with a broad range of
electric or air requirements.
Model
24VDC
24VAC/DC
115VAC

Note: 115VAC not available in PUL

5. Quick Connect Cable

Model
QC

Description
An optional quick connect cable 10’ in
length with stripped wires at one end
for splicing into an electrical box or
power supply and with a connector
on one end for quick connect to the
Gemini operator is automatically
supplied with a matching connector.

Note: Leave this space blank if not required.

6. Security Monitoring
Model
CLS

OLS

Description
Closed Loop Secure - Monitor
• When lock is secure (latch in
strike-operator in locked position),
monitor loop is a closed circuit.
The circuit opens if security is
breached.
Open Loop Secure - Monitor
• When lock is secure (latch in
strike-operator in locked position),
monitor loop is an open circuit.
The circuit closes if security is
breached.

Note: Leave this space blank if not required.
7. Finish

Specify US standard architectural hardware finish
as required.
8. Handing

Model
LH
RH
LHR
RHR

Description
Left Hand
Right Hand
Left Hand Reverse
Right Hand Reverse

9. Lock Manufacturers Part Number

Distributors supply ACSI with mortise or mortise
exit lock bodies for Gemini modification. Please
supply the lock manufacturer’s part number.
Example: L9070, 2055, BM17

Note: Refer to the Gemini Series 8500 price list for
a complete listing of locksets that can accept the
Gemini modification.

ACCESSORIES
Model
302-03-02

Description
Gemini Mortar Guard, 15”



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