LiftMaster LM21AFCB Advance Fire Control Release Device - Manual (Page 6)

CONNECTIONS FROM DEVICE TO THE OPERATOR
NOTE: For low voltage wiring #18 AWG is recommended.
OPERATOR CONNECTIONS
1. Connect terminals 11 and 12 from the release device to the
transformer secondary in the door operator. The required
voltage should be 24-30Vac.
NOTE: This connection must be made in order to avoid a
mechanical release in alarm conditions when the door is not
closed (Figure 2).
2. Connect release device to auxiliary limit switches on the
operator. These are required and must be provided by the
door operator manufacturer.
Auxiliary Closed Limit Switch (Figure 1):
Connect a wire from the common and N/O of the auxiliary limit
switch to terminals 13 and 14 on the release device. This input
will not allow a mechanical release if the auxiliary close limit is
activated. This circuit also turns off annunciators when the
auxiliary close limit is activated.
6
W I R I N G
To prevent DAMAGE to the circuit board, auxiliary limit switches
MUST be provided as dry contacts and may not be used in
conjunction with the simultaneous switching of a motor control
or ANY other voltage through the same contacts. Connections of
this type will result in immediate damage to the release device.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION CAUTION
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIA ADVERTENCIA
Auxiliary Open Limit Switch (Figure 1):
Connect a wire from the common and N/O of the auxiliary limit
switch to terminals 14 and 15 on the release device. A
connection to an auxiliary up limit switch is required for
3-cycle obstruction count feature. Adjust the auxiliary open
limit to activate just before the operators open limit is activated.
3. Connect wires from terminals 7, 8, 9, and 10 to the door
operator terminals that are used for 3-button station (for use
with N/O ‘Close’ switch, N/O ‘Open’ switch and N/C ‘Stop’
switch). The close relay output latches to initiate a door closure
through the operator after the factory set delay.
Figure 1
Figure 2
Auxiliary Limit Switches
Auxiliary Close Limit (N.O.)
Auxiliary Open Limit (N.O.)
Common
LMEOLRES-2-2
4-Wire Smoke
Detector Wiring
End of Line Relay
24 Vdc
4-Wire Smoke
Detector Wiring
(4 Detector
Maximum)
2.2 kOhm
Smoke
Detector
Smoke
Detector
Additional Dry Contact
2.2
kOhm
Safety Edge Safety Edge Common Open B
u tton Inp
u t
Close B
u
tton Inp
u
t
Stop B
u
tton Inp
u
t
Open B
u tton
Close B
u
tton
Stop B
u
tton
A
u xiliary Close Limit (
N
.O.) (4)
A
u xiliary Open Limit (
N
.O.) (4)
.75
A
Maxim
u
m C
u
rren
t
D
u
ring Alarm
DC DC
3-B
u tton Common
Control
V
oltag
e
Control Gro
u nd
Safety
Edge
Operator Annunciator
3-Button
Station Auxiliary Limit
Switches
2-Wire Smoke
Detector Wiring
2-Wire Smoke
Detector Wiring
(4 Detector
Maximum)
Smoke
Detector
2.2 kOhm
Smoke
Detector
(PU) (YE)
Voice Board
Speaker - V oic e
Board Model Only
+ Speaker
- Speaker
OR
BATTERY CONNECTION / MAINTENANCE
Use two (2) 12V 4.5AH sealed
lead acid batteries in series.
Maximum charge current 1A.
Replace batteries every 2 years.
Black Wire to Black T ermina l
Battery Interconnect Wire
Battery 1 Red to Battery 2 Black
Battery 1
Battery 2
Red Wire to Red T ermina l
Power Con.
TB2
POWER CONNECTION
Hot
120Vac
1-Phase
Neutral
120Vac
1-Phase
TB2
L1 L2 L3
Replace batteries every 2 years.
Field Wiring shall consist of 22-18 AWG wiring.
Use only 250 VAC, 2 Amp, 3 AG Slo-Blo fuses.
1. Supervised, power limited circuit, 20 Ohm
maximum line impedance.
2. Unsupervised circuit, 20 Ohm maximum line
impedance.
3. Unsupervised, power limited circuit, 20 Ohm
maximum line impedance.
4. Maximum of 4 Class B Style A detectors.
LMEOLRES-2-2 required for supervision.
5. Maximum of 2 Class B Style W notification
appliances. 0.75 Amp at 24 VDC maximum.
Supervised, non-power limited circuit. 20 Ohm
maximum line impedance. Place 2.2 kOhm
resistor between 16 & 20 if unused.
LMEOLRES-2-2
(1)
(4)
(4)
(2)
(5)
(3) Wall Mounted
Test/Reset Switch
Red Y
ello
w