Cookson Firefly IV MV User manual

1 Firefly IV MV
WARNING
1. CAUTION: Review all installation instructions, procedures, cautions and warnings contained within
this manual prior to installing and/or servicing this product. As with all releasing device systems,
maximum fire protection is provided when installed in accordance with factory specifications and used
with fuse link systems.
2. DO NOT install this unit without fuse links.
3. Installation and testing to factory specifications shall be performed by factory authorized personnel
for proper operation in accordance with all of the latest National fire Protection Association (NFPA),
Underwriters Laboratories (UL), National electrical Code (NEC), local, state, county, district and/or
other applicable building and fire standards, guidelines, regulations and codes including, but not
limited to, all appendices and amendments and the requirements of the local authority having
jurisdiction (AHJ).
4. To be performed by factory authorized personnel only.
5. Clear fire door opening and prohibit all traffic through door opening during testing of system!
Installation Tip: Try out this unit before installing onto a fire door system. Test and learn the release
mechanism before connecting to a fire door.
INTRODUCTION
The releasing device is a failsafe constantly energized solenoid mechanism. It is designed for use on
rolling doors, single-slide and center-parting level and inclined track doors. Inside the mechanism,
contact relays receive the alarm signal from the fire alarm control panel. When the unit receives the
signal, the power to the solenoid is cut, releasing the fire door mechanism and hence close the fire
door. The alarm signal can be Form C dry contact or 24VDC/VAC. Any interruption of power will
release the solenoid mechanism. The release has a 10 second delay upon power failure and alarm,
closed door detection capabilities, Form C relay outputs for the status of release box and 24VDC
power output for door close warning.

SPECIFICATION
Input Power*: 115VAC, 0.5A; 230VAC, 0.25A ; 24VAC, 0.5A; 24VDC, 0.2A
Alarm Dry Contact Rating: 24VDC, 0.08A, 5.16 ohms max line impedance
Lower Limit Microswitch Rating: 30VDC, 0.08A, 5.16 ohms max line impedance
Door Close Warning Power: 24VDC @Max. 0.23A, Resistive, Special Application (see
below)
Status Dry Contact: Rating: 30VDC/VAC, 2A, Resistive Load
Frequency: 50Hz or 60Hz
Release Pull: 50 lbs (22.7kgs)
Fuses: F1: 4A@250V, Fast-Act Type
F2: 3A@250V, Slo-Blo Type
*Input voltage [standby/full load**/start current]: 115VAC [0.5/0.6/1.1A], 230VAC [0.25/0.3/0.55A],
24VAC [0.5/0.8/1.8A] or 24VDC [0.2/0.4/1.8A].
**Full load current only required for optional warning device(s).
zMust install with UL approved fusible links.
z24V input power can be 24VDC or 24VAC or 24VDC from an approved UL1481 regulated power
supply.
z18-gauge wire recommended.
zFor “Indoor Dry” location use only.
zClose warning power is provided for less than a minute. Any fire Listed audible or visual device
may be used if the 24VDC input is powered by a UL1481 regulated power supply. When input
power is 115VAC, 230VAC or 24VAC, please connect the following compatible devices:
Bridgeport Fitting Inc Series 840P & 840T and Federal Signal Corp Model LP6 and Series LP3.
zNote: Door Close Warning Output is only functional when the box has input power.
INSTALLATION
Disconnect power supply before servicing.
WARNIN
G
-For “Indoor Dry” location use only. All wiring must satisfy the most current version of
NFPA72 – National Fire Alarm Code and the National Electric Code.
-18-gauge wire is recommended
2 Firefly IV MV

INSTRUCTION & DRAWING
1. Actual configuration may differ. Must pull straight cable minimum 18 inches before turning (This
unit may be rotated 90 degrees CW for a vertical pull.). See door manufacturer recommendations
and NFPA 80 for use of this product with specific door. DO NOT install this unit without fusible
links.
2. To be performed by factory authorized personnel only.
3. The release device shall be mounted on a vertical surface with chain end link exiting side of
enclosure as illustrated on figure 1. The unit may be rotated 90 degrees CW for a direct vertical pull.
Figure
Firefly IV MV
Release Device
4. Release device and associated hardware [sash chain or 1/16 cable, eyebolts, fusible links (DO NOT
install this unit without fusible links), turnbuckles] shall be installed as per door manufacturers
recommendations (figure 1 typical installation configuration). Note should be taken that the end link
direction of pull is perpendicular to the enclosure side. An eyebolt installed at a distance of 18 to 24
inches from the release device should adequately redirect sash chain pull as illustrated in figure 1.
Please also see figure 2 for illustration.
3 Firefly IV MV

Figure 2
4 Firefly IV MV
Disconnect power supply before servicing.
5. ELECTRICAL CONNECTIONS
WARNIN
G
Installation of all wiring and connections shall be performed in accordance with, but not limited to,
the latest NFPA, U.L. and N.E.C. standards. In addition, all installations subject to Canadian
standards shall be performed in accordance with the Canadian Electrical Code, Part I, with respect to
wiring material, wiring gauge related to power capacity requirements and circuit length and wiring
methods.
6. Verify voltage rating of release device to power source being utilized.
7. Connect fusible link and fire door system to release box.
8. Connect power and alarm connection to the unit.
9. Remove the “Set-Tie” cable after power and alarm connection.
“Set-Tie” cable mechanically secures release latch and must be removed to allow
proper emergency operation of release device after installation is completed.
NOTE: A trouble sounder will be activated if power is present, the latch is engaged, but the “Set-Tie”
has not been removed and/or the lever is in the “DIS-ARMED” position.

WIRING
Disconnect power supply before servicing.
WARNIN
G
WIRE ROUTING
+-
414231323335363738
+-
Note: Not supervised.
5 Firefly IV MV

TERMINAL CONNECTIONS
Disconnect power supply before servicing.
TB1
WARNIN
G
L N
Input power 115VAC or 230VAC*See Note. 5
TB2
41 (＋) 42 (－) 31 32 33 35 (＋) 36 (－) 37 38
Input 24VDC/VAC
*Note. 5 Alarm Dry Contact
(N/C) *Note 1 Door close warning 24VDC, total 0.23A
*Note 3
Status dry contact
*Note 4
30VDC/VAC 2A
16AWG 37.9ft
Resistive load
Lower Limit Microswitch
(N/C) *Note 2
＊ Note:
1. Terminal 31&32
Building fire alarm panel needs to provide dry contact (N/C) connection with minimum capacity of 24VDC and 0.08 amp. To have
5.16 ohms max line impedance.
2. Terminal 32&33
Use this connection to notify release device the status of the door. Field installation of microswitch on the door is necessary to use
terminal 32&33.
When the door is already in its close position, a closed contact (N/C) can cause the release device not to release (5.16 ohms max
line impedance). Power failure will still cause the solenoid to let go, hence resetting is necessary.
3. Terminal 35&36
This connection provides 24VDC, 0.23A power with 18AWG wire for maximum of 20 ft., when release device has been released.
This can be used to provide power for warning devices. The warning power is provide for less than a minute. The wiring
connections are enclosed within conduit or equivalently protected against mechanical injury.
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7 Firefly IV MV
4. Terminal 37&38
These terminal connections will provide the status of this release device. When release device is in the standby mode, connection is
open (N/O). When release device have been activated or released, connection would be in closed (N/C) state.
5. See connection chart for power inputs.
Connection Chart
Firefly IV MV
Terminals
Connection
Type
Line In
High Voltage
L & N
Low Voltage
41 & 42
(24VDC or 24VAC)
Alarm Connection
31&32
Power Input Connect
115VAC or 230VAC
Connect
24VDC or 24VAC
(Voltage supplied by FACP
or an UL listed power supply)
Connect FACP*
Alarm Dry Contact
(5.16 ohms max line
impedance)
High Voltage Alarm Signal Connect Alarm Signal
115VAC or 230VAC Do Not Connect Jump (Wire size min 18AWG)
Low Voltage Alarm Signal Do Not Connect Connect Alarm Signal 24VDC or 24VAC
(Voltage supplied by FACP)
Jump
(Wire size min 18AWG)
＊Note: FACP – Fire Alarm Control Panel.

WIRING DIAGRAM
Release box Firefl
y
IV MV
(
115V 1
ψ
or 24VAC/VDC
)
8 Firefly IV MV

9 Firefly IV MV
Release box Firefl
y
IV MV
(
230V 1
ψ
or 24VAC/VDC
)