TFP910
Page 17 of 20
Trim kit is ordered separately when a
Water Motor Alarm is not installed.
Care and
Maintenance
The following procedures and
inspections should be performed in
accordance with this section, in addi-
tion to any specific requirements of the
NFPA. Any impairment must be imme-
diately corrected.
NOTICE
Performing the care and maintenance
procedures will result in operation of
the associated alarms. Consequently,
notification must first be given to the
owner and fire department, central sta-
tion, or other signal station to which the
alarms are connected.
Before closing a fire protection system
main control valve for maintenance
work on the fire protection system
that it controls, obtain permission to
shut down the affected fire protection
system from the proper authorities
and notify all personnel who may be
affected by this decision.
The owner is responsible for the
inspection, testing, and maintenance of
their fire protection system and devices
in compliance with this document, as
well as with the applicable standards
of the National Fire Protection Asso-
ciation (e.g., NFPA 25), in addition to
the standards of any other authorities
having jurisdiction. Contact the install-
ing contractor or product manufacturer
regarding any questions.
Automatic sprinkler systems are rec-
ommended to be inspected, tested,
and maintained by a qualified Inspec-
tion Service in accordance with local
requirements and/or national codes.
The TYCO Model AV-1-300 Alarm
Check Valves do not require any reg-
ularly scheduled maintenance. It is
recommended, however, that proper
operation of the alarms be periodically
verified in accordance with a proce-
dure that is acceptable to the authority
having jurisdiction. Any impairment
must be immediately corrected.
Inspection Procedure
It is recommended that the following
inspection procedure be performed at
least quarterly by a qualified Inspection
Service.
Step 1.
Notify the proper authorities
and all personnel who may be affected
that an alarm test is to be performed.
Step 2.
Open the end-of-line Inspec-
tor’s Test Connection (or Alarm Test
Valve, if acceptable to the authority
having jurisdiction) and verify that the
system alarms operate in accordance
with the requirements of the authority
having jurisdiction. Verify that the water
motor alarm and/or the pressure alarm
switch properly actuate and within the
elapsed time required by the authority
having jurisdiction.
Step 3.
Verify that water is flowing
out of the alarm line drain at a rate
consistent with the 1/8 inch (3,2 mm)
diameter drain orifice in the Restriction
Assembly.
Step 4.
Close the end-of-line Inspec-
tor’s Test Connection (or Alarm Test
Valve).
Step 5.
Verify that water ceases to flow
from the alarm line drain.
Step 6.
Clean the 1/2 inch Strainer
(located in the valve trim) as well as
the 3/4 inch Strainer (located at the
connection to the water motor alarm,
as applicable). Be sure to replace the
strainer baskets and tighten the caps
securely.
NOTICE
Cleaning of the Strainers after each
operation of the alarms is especially
important in the case of water sup-
plies (such as lakes and rivers) having
a large quantity of suspended matter. A
clogged alarm line can prevent opera-
tion of the alarms.
Step 7.
Notify all authorities responsi-
ble for monitoring the installation that
the fire protection system has been
returned to service.
Sprinkler System Drain-Down
Draining the sprinkler system must be
done in accordance with the following
procedure:
Step 1.
Close the main control valve, if
this has not already been done.
Step 2.
Open the remote cross main or
branch line vent connection. (Refer to
Step 7 in the Installation section.)
Step 3.
Open the Main Drain Valve.
Check first to see that the drainage
water discharge will not cause dam-
age or result in dangerous conditions.
Step 4.
Wait until the Supply Pressure
Gauge reads zero pressure and the
sound of draining water has stopped
before performing any maintenance
work on the fire protection system.
Leakage from Alarm Line Drain
Follow the steps indicated below until
water ceases to flow from the alarm
line drain. After each step check if leak-
age has stopped.
Step 1.
Open the Main Drain Valve. Let
the water flow for about 5 seconds and
then close the Main Drain Valve. This
should flush any loose debris that may
have become trapped between the
Clapper Facing and the Seat Ring or
in the seating area of the Drain Valve.
Step 2.
Repeat Step 1 if the rate of
continued flow out of the drain was
noticeably reduced.
Step 3.
Open the Alarm Test Valve and
allow water to flow for about 5 seconds
before re-closing the valve. This should
flush any loose debris that may have
become trapped in the seating area of
the Alarm Test Valve.
Step 4.
Repeat Step 3 if the rate of
continued flow out of the drain was
noticeably reduced.
Step 5.
Determine whether the water is
flowing from the Alarm Port (Ref. Figure
1) or past the Alarm Test Valve. If the
leakage is past the Alarm Test Valve,
close the main control valve, and then
repair or replace the Alarm Test Valve
as necessary.
Step 6.
If it appears that the leakage
noted in Step 5 is from the Alarm Port,
drain the system in accordance with
the prescribed procedure. After the
system has been drained, remove the
Handhole Cover.
Step 7.
While holding the Spring down
by the coils, remove the Hinge Pin.
Remove the Spring and Waterway
Clapper Assembly.
1
1
QTY.
1
. . . . . . . . . . .
. . . . . . . . .
. . . . . . . . . .
1
2
NO.
3
3/32" Vent
3/4" x 1/4" Hex
Fitting
Bushing
92-032-1-002
CH
DESCRIPTION
P/N
1/4" x 5'-0"
Tubing
CH
2
(GREEN
TINT)
MODEL RC-1
RETARD
CHAMBER
PRESSURE
SWITCH
3
(ROUTE TO
DRAIN)
1
FIGURE 8
ALARM VENT TRIM KIT
(P/N 52-201-2-012)
