System Sensor FTX-P1 Installation And Maintenance Instructions page 3

Figure 2. Rotary decade address switches:
7 8
6 9
5
4
3
2
1 0
TENS
Figure 3. Test magnet position:
Figure 4. Replacing the filter cover:
Cover is keyed to fit
into 4 matching
size slots.
Alignment marks are
provided on the cap
and top of the
permanent filter.
D200-72-00
7 8
6 9
5
4
3
2
1 0
ONES
C0146-00
TEST MAGNET
MARKER
C0191-00
C0192-00
A detector that fails any of these tests should be retested.
If the detector still fails any test, have its filter replaced
(see instructions below) and retested. Finally, if the detec-
tor continues to fail after replacing the filter, it must be re-
turned for repair or replacement.
When testing is complete, restore the system to normal op-
eration and notify the proper authorities that the system is
back in operation.
Cleaning
The unique design of Filtrex eliminates the need for typi-
cal detector cleaning. The only maintenance necessary is
replacing the filter, which is signaled by a trouble condition
at the panel (see below).
Filtrex has been designed to maximize the amount of time
before maintenance is required. Filtrex utilizes a replaceable
filter that may become clogged over time. Filtrex monitors
itself to insure that the filter has not become clogged. Be-
cause environmental conditions can vary significantly, the
amount of time before maintenance could vary significantly
as well. To fully understand the maintenance requirements
of Filtrex in its installed location, it is recommended that
the following test program be conducted.
1. Install Filtrex in the desired location.
2. Connect Filtrex to the fire alarm control panel.
3. Maintain a record for at least 90 days of any mainte-
nance performed on or required by Filtrex.
4. At the end of the test period, use the record to develop
and schedule maintenance. Filtrex detectors should be
serviced at regular intervals to insure that the fire alarm
system provides continuous protection.
Replacing the Filter
IMPORTANT: When the filter becomes too clogged to draw
adequate air into Filtrex, power is automatically cut from
the detector, sending a trouble signal to the fire control
panel. After 5 minutes, power is restored to the detector for
72 hours. After 72 hours, power is cut again and the detec-
tor will remain off-line until the filter is replaced.
NOTE: The unit has two filters. The replaceable filter is
inside the cover. A permanent filter is mounted
to the unit.
1. Grasp the Filtrex housing with one hand and the cover
with the other. Turn the cover counterclockwise fully
(approx. 30 degrees) and remove cover by pulling it
away from detector unit (see Figure 4).
2. Replace with new filter and cover assembly. The cover
is keyed so it fits in place only one way. Turn the cover
clockwise until it stops.
NOTE: The base is equipped with an optional tamper p roof
feature which can be used to prevent unintentional removal
of Filtrex while replacing the filter.
3 I56-1184-008R