D. MOUNTING
Before mounting, install a mor-
tise cylinder into the Housing
Cover (H354-28) as follows:
1. Refer to Fig. 6:
• Install mortise cylinder
(Alarm Lock Model CEM,
optional) into the Housing
Cover from the outside with
the key slot at the 6 o'clock
position;
• Install Locking Arm
(HW1154). Route strobe
wire under the Locking Arm
to avoid interference (Fig.
6b), then screw the Lock
Ring (P1267) onto the Cylin-
der and tighten using sup-
plied Spanner Wrench
(P4577).
2. Install Housing Cover into the
Baseplate as follows: Remove all
keys from cylinder (thus ensuring
the cylinder is in a 12:00 position).
Hold Housing Cover vertically with
the inside facing toward you (the PC
board and jumpers are at bottom),
slide the switch to the right. Note:
Each time the Housing Cover is
removed, the switch must be moved
to the right before mounting. Dis-
connect and reconnect the battery.
Hook the Housing Cover into the clip at the bottom of the
Baseplate, then gently snap the top of the Housing Cover
into the top of the Baseplate. DO NOT FORCE. Note: If
the a key is accidentally left inside the cylinder, the Housing
Cover is specifically designed NOT to lock into the
Baseplate. If the Housing Cover is installed with the switch
in the wrong position (not moved to the right), insert and
rotate the key counter-clockwise to reset the switch posi-
tion. Important: If the unit has been installed with the aid
of the template or stickers on the side of the Housing Cov-
er, secure the Housing Cover to the Baseplate using the
four #8-32 oval-head screws (supplied) and go to step 3.
Install the longer "Tamper Screw" into the correct location
(see page 7, Exploded View). If template or stickers are
not available, do not install the longer "Tamper Screw" until
the magnet has been aligned using the "Magnet Alignment
Mode" as follows:
Magnet Alignment Mode
This mode ends after the Tamper Screw is installed. The
template and stickers should be sufficient to determine the
correct location of the Magnetic Actuator. If the unit has
been installed with the aid of the template, go to step 3. If
labels/ templates are missing, use the following procedure:
Tamper Switch
Inside the PG21 is a Tamper Switch, and the longest of the
4 screws which secure the Housing Cover to the Baseplate
is the Tamper Screw. When installed, the Tamper Screw
closes the Tamper Switch, and the state of the PG21
changes from "Magnet Alignment Mode" (switch open) to
normal "Standby Mode" (switch closed). Therefore, when
performing Magnet Alignment Mode, do not install the
Tamper Screw until the magnet has been aligned and se-
4
P4577
P1267
HW1154
MORTISE
CYLINDER CEM
H354-28
Fig. 6: Installing mortise cylinder.
Route Strobe
Wire under
Locking Arm
(HW1154)
Locking Arm
(HW1154)
Fig. 6b: Route Strobe Wire
cured as follows:
• Place the Magnetic Actuator against the wall, adjacent to
the bottom of the unit. Slowly slide the Magnetic Actuator
upward. The LED will turn on, indicating closure of the
reed switch, then turn off. Mark the door jamb at the bot-
tom of the Actuator. Note: Sliding the Actuator still further
will cause the LED to light again; ignore subsequent indi-
cations.
• Similarly, place the Magnetic Actuator against the wall,
adjacent to the top of the unit. Slowly slide the Magnetic
Actuator downward. The LED will turn on, then will turn
off once again. Mark the doorjamb at the top of the Mag-
netic Actuator.
3. Install the Magnetic Actuator (Part #P0290) so that it is
centered between the two marks on the Housing Cover
sticker, the template, or created during Magnet Alignment
Mode. Mark holes, use a 1/8" (0.125") bit, and drill the hole
1" deep. Use the two supplied #8 sheet-metal screws (1").
Note: On steel frames, it is sometimes necessary to install
a non-magnetic shim or spacer between the magnetic ac-
tuator and the frame to prevent the steel frame from ab-
sorbing the magnet's magnetic field that could cause a
constant or occasional false alarm, and to correct for height
differences between the door and the doorjamb. Use the
enclosed spacers or construct a shim ½" x 2½" x ⅛" from
thick non-magnetic material such as plastic, Bakelite or
rubber. Note: The reed selection jumper W1 should be
set to the side of the unit that will have the magnet installed
(see Fig. 5). After the Magnetic Actuator has been aligned
and mounted, the Tamper Screw may be installed to place
the unit in its normal "Standby Mode", ready for use.
Removing Unit
Remove the PG21 Cover from the Baseplate as follows:
1. Remove the three #8-32 screws (SC542) and the #8-32
Tamper Screw (SC543).
2. Push the Cast Housing Cover (H354-28) against its
mounting location (door or wall).
3. Insert key into the mortise cylinder, push key and turn
counter-clockwise to cause the Housing Cover to unlatch
from the top of the Baseplate (9HW1146ASSY).
4. Unlatch Housing Cover from the bottom of the Baseplate
(slide the switch to the right to prepare for re-installation).
E. FIELD TEST
1. With the unit armed and indicator status RED, close
the door.
Note: Unit will not arm unless the magnet
(P0290) is aligned with the reed switch selected.
2. Open door to sound the siren alarm; if no delays are set,
see Jumper Options (page 3) and examples (pages 5-6).
3. Reset the alarm: Turn key fully counter-clockwise to dis-
arm. If the PG21 lock is kept in its original factory configu-
ration (in "Always Armed" mode), removal of the key will
return the unit to armed status. If "On/Off" mode was se-
lected, the unit will remain in disarmed mode until you re-
move the key by returning the key position to the center.
Low Battery
In normal operation, whether armed or disarmed, battery
status is automatically checked every 4 hours (with each
check, the LED will blink). When the battery becomes
weak, the unit will chirp and the LED will flash about once
every minute, indicating the need for battery replacement.
PG21 Series Pilfergard Door Alarms Installation Instructions
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