Viking FIRECYCLE III User manual

A. SYSTEM DESCRIPTION
(Refer to Figure 1 or 2, Page 425 d)
The Viking Firecycle®III Cycling Single
Interlocked Preaction System utilizes a
Viking Model H or J Flow Control Valve
(A.1), a Viking Easy Riser™ Check
Valve (A.2), and a Firecycle®III Control
Panel (E.3), together with additional
valves, devices and trim to form a
unique operating system. The system
piping is normally dry and may be in-
stalled in locations subject to freezing.
The system piping is pneumatically
pressurized (Minimum 30 psi (207 kPa))
to monitor the integrity of the piping, fit-
tings and sprinklers and to act as a
fail-safe emergency backup to the elec-
trical detection system.
In addition to automatically detecting a
fire and turning the system on,
Firecycle®III has the added ability to
sense when the fire has been controlled,
and automatically turn off the water flow
once a preprogrammed “Soak Timer”
has been satisfied. Should the fire rekin-
dle, Firecycle®III will initiate the se-
quence again. This unique cycling fea-
ture will repeat as long as power is avail-
able to the panel, helping to minimize
water usage, water damage, and the
danger of pollution to surrounding areas.
Batteries are available to provide up to
ninety (90) hours of emergency power.
If the A.C. Power fails and the battery
backup power expires while the system
is operating, the deluge system will
“fail-safe”, and continue flowing until
A.C. Power is restored or the system is
manually shut-off.
The Firecycle®III Cycling Single Inter-
locked Preaction system has several
“fail-safe” features, some of which are
not available on other preaction sys-
tems. Refer to Section B “System Oper-
ation” for details.
Preaction systems are commonly used
to help minimize accidental water dam-
age and still provide fast water dis-
charge during a fire emergency. Consult
all Authorities Having Jurisdiction prior
to installing a Firecycle®III Preaction
System. The system requires use of a
Viking Flow Control Valve and trim kit
with two electric Release Solenoid
Valves (E.1) and (E.2) controlled by the
Firecycle®III Control Panel (E.3),
Firecycle®Detectors (E.4) and Detector
Cable (E.5). The detector temperature
must be lower than the lowest tempera-
ture rated sprinkler being used. For
proper location, spacing and positioning
of detectors, refer to Technical Data de-
scribing Viking Firecycle®Detectors.
NOTE:
Firecycle®III is a complete system, and
is listed as a unit. As such, it is normally
not possible to modify the components
of the system controls or their
inter-relation without compromising the
listing.
Approvals:
UL Listed, Category VLLA
FM Approved
Accepted for use by City of New York
Department of Buildings,
MEA 89-92-E Vol. XIV
B. SYSTEM OPERATION
(Refer to Figure 1 or 2, Page 425 d.)
In the SET condition:
System water supply pressure enters
the priming chamber of the Flow Control
Valve (A.1) through the 1/4" (8 mm)
priming line which includes a normally
open priming valve (B.1), strainer (B.2),
restricted orifice (B.3) and check valve
(B.4). In the SET condition, water supply
pressure is trapped in the priming cham-
ber by check valve (B.4), normally
closed Emergency Release (B.11),
Pneumatic Actuator (B.6), and normally
closed Release Solenoid Valve #1 (E.1).
Water Supply pressure in the priming
chamber holds the clapper of the Flow
Control Valve (A.1) on the seat due to
the differential design of the valve and
spring pressure. The clapper separates
the inlet chamber from the outlet cham-
ber, keeping the outlet chamber and
system piping dry.
In Fire conditions:
When the Firecycle®III detection system
(E.4 and E.5) operates, the Firecycle®III
Control Panel (E.3) activates a piezo
sounder and energizes normally closed
Release Solenoid Valve #1 (E.1) open
and normally open Release Solenoid
Valve #2 (E.2) closed. Pressure is re-
leased from the priming chamber faster
than it is supplied through restricted ori-
fice (B.3). The Flow Control Valve (A.1)
clapper opens to allow water to flow into
the system piping and to alarm devices,
causing Alarm Pressure Switch (C.1) to
activate. Water entering the system op-
erates and hydraulically latches the
Pressure Operated Relief Valve
(PORV) (B.10) open. Water will flow
from any open sprinklers or nozzles.
Water discharges until all Firecycle®De-
tectors have reset. (cooled below their
set point). After all detectors have reset,
the Firecycle®III Control Panel (E.3) ac-
tivates the “Soak Timer”, allowing the
system to continue discharging water for
a preset time period. When the “Soak
Timer” has expired, the Firecycle®III
Control Panel (E.3) de-energizes nor-
mally closed Release Solenoid Valve #1
(E.1), allowing it to close. (The normally
open Release Solenoid Valve #2 (E.2)
remains energized closed until the
Firecycle®III Control Panel is manually
reset, or both A.C. Power and battery
backup have failed.) The Flow Control
Valve (A.1) re-primes and closes, stop-
ping the flow of water through the sys-
tem piping.
Should a Firecycle®Detector go into
alarm, the Firecycle®III Control Panel
(E.3) re-energizes normally closed Re-
lease Solenoid Valve #1 (E.1) open, and
the entire cycle repeats.
To return the system to “Normal” condi-
tions, drain the system piping and re-
place any sprinklers which may have op-
erated. Relieve the pressure on the
Pressure Operated Relief Valve
(PORV) (B.10) by draining the outlet
chamber of the Flow Control Valve.
(A.1) Replace any Firecycle®Detectors
which have been damaged and
re-establish system air pressure. Press
the “System Reset” button on the
Firecycle®III Control Panel (E.3) to clear
all alarms.
Trouble conditions:
If the system piping and/or the sprinklers
are damaged and either the AC Power
and/or Standby Battery Power is avail-
able, the low air supervisory switch will
activate a trouble alarm at the Firecycle®
III Control Panel (E.3).
If the detection system is damaged or
malfunctions, the Firecycle®III Control
Panel will go into alarm and the Flow
Control Valve will open. Water will fill the
Form No. F_100496 Replaces page 425a-d dated April 28, 2000. (Added reference to
straight through valves and added air pressure setting chart.)
Firecycle®III 425 a
SYSTEM DATA
March 15, 2004
For Technical Data,
Installation, Maintenance
and Testing Instructions for
individual system
components, refer to
current Viking
Technical Data describing
individual components
of the system used.
Viking Technical Data may be
found on The Viking
Corporation's Web site at
http://vikingcorp.com.
The Web site may include a more
recent edition of this
Technical Data Page.
FIRECYCLE®III
CYCLING SINGLE
INTERLOCKED PREACTION
Water System
Air
Detection
Circuit #1
Detection
Circuit #2
0-175 30+ 25 30
175-250 50+ 40 50
AIR PRESSURE SETTINGS
OBSOLETE

system piping, activating any connected
alarms, but will not discharge from any
closed sprinklers attached to the system
until a sprinkler has operated, as in a
fire. The cycling function of the
Firecycle®III System will not operate in
this condition. All alarms will operate
normally.
Loss of Power Prior to Operation:
If the AC power fails, the Firecycle®III
System continues to operate on the
standby batteries. Should the AC power
and the standby batteries fail prior to the
operation of the system, all alarms will
be lost. As long as air pressure remains
in the system piping, the Pneumatic Ac-
tuator (B.6) will keep the Flow Control
Valve (A.1) from opening. If the system
air pressure is lost, the Flow Control
Valve (A.1) will open, allowing water to
flow into the system piping and be dis-
charged from any open sprinklers. The
cycling function of the system will not op-
erate in this condition, and the system
must be manually shut-off.
Loss of Power During Operation:
If all power fails while the system is flow-
ing water, the normally open Release
Solenoid #2 will fail open. The P.O.R.V.
(B.10) is already pressurized open, con-
tinually venting the priming chamber of
the Flow Control Valve (A.1). The cy-
cling function of the system will not oper-
ate in this condition, and the system
must be manually shut-off.
Manual Operation:
Any time the handle inside Emergency
Release (B.11) is pulled, pressure is re-
leased from the priming chamber faster
than it can be replaced through the prim-
ing line; the Flow Control Valve (A.1) will
open. Water will fill the system piping,
activating any connected alarms, but will
not discharge from any closed sprinklers
attached to the system until a sprinkler
has operated, as in a fire. The cycling
function of the Firecycle®III System will
not operate in this condition, due to the
open Emergency Release (B.11). All
alarms will operate normally. After oper-
ating the Emergency Release (B.11), do
not close the Emergency Release until
the system is ready to be reset.
C. INSTALLATION
Refer to current Viking Technical Data
describing individual components of the
Viking Firecycle®III System. Technical
Data describing the Viking Flow Control
Valve and other system components are
packed with product and in the Viking
Engineering Design Data book.
Also, refer to applicable installation stan-
dards, codes, and Authorities Having
Jurisdiction.
1. The Flow Control Valve (A.1) and
Trim must be installed only in areas
where they will not be subjected to
freezing temperatures or mechanical
damage.
2. All indicating appliances and releas-
ing devices must be compatible and
approved for use with the Firecycle®
III System. Refer to appropriate Fire
Protection Equipment Approval
Guides and current Viking Technical
Data describing individual compo-
nents of the Viking Firecycle®III Sys-
tem.
3. Use only Firecycle®Detectors (E.4)
and Cable (E.5).
D. EMERGENCY
INSTRUCTIONS
(Refer to Figure 1 or 2, Page 425 d.)
Taking System Out of Service:
WARNING: Placing a control valve or
detection system out of service may
eliminate the Fire Protection capabilities
of the system. Prior to proceeding, notify
all Authorities Having Jurisdiction. Con-
sideration should be given to employ-
ment of a Fire Patrol in the affected ar-
eas.
After a fire, verify that the fire is OUT and
that placing the system out of service
has been authorized by the appropriate
Authority Having Jurisdiction.
Sprinkler systems that have been sub-
jected to a fire must be returned to ser-
vice as soon as possible. The entire
system must be inspected for damage
and repaired or replaced as necessary.
1. If All System Components Are
Operational:
A. Open Auxiliary Drain.
B. Silence alarms (optional).
1: To silence electric alarms con-
trolled by Firecycle®III Control
Panel (E.3), open panel and
press “ALARM SILENCE”
2: To silence electric alarms not
controlled by Firecycle®III
Control Panel (E.1), close
Alarm Shut-Off Valve (B.9).
Note: Electric Alarms con-
trolled by a pressure switch in-
stalled in the 1/2" (15 mm) NPT
connection for a
Non-interruptable Alarm Pres-
sure Switch cannot be shut off
until the Flow Control Valve is
reset or taken out of service.
C. To return to service immedi-
ately, (when no maintenance or
repairs are required) :
1: Close System Drain (D.3) if
opened in step 1-A.. If neces-
sary, open System Drain (D.3)
to drain system and/or Test
Valve (B.15) to drain the inlet
chamber of the Flow Control
Valve (A.1).
2. Restore system air pressure.
3: Open Firecycle®III Control
Panel (E.3) and press “RE-
SET”.
4: Open Alarm Shut-Off Valve
(B.9) (If it was closed in step
B-2 above).
5: Verify that all valves are se-
cured in their normal operating
position. (Refer to Figure 1 or
2, Page 425 d.)
2. If it is necessary to remove the
Firecycle®III system from service:
A: Close the Main Water Supply
control Valve (D.1).
B: Close Priming Valve (B.1) (op-
tional). If necessary, open
System Drain (D.3) to drain
system and/or Test Valve
(B.15) to drain the inlet cham-
ber of the Flow Control Valve
(A.1).
C: Disconnect all power sources
to the Firecycle®III Control
Panel prior to performing any
maintenance or repairs to the
detection system (E.4, E.5),
the panel (E.3), solenoid
valves (E.1, E.2), or any elec-
trical component of the sys-
tem.
3. Perform all maintenance procedures
recommended in Firecycle®III
Owner’s Manual and Technical Data
Pages for the individual components
of the system that has operated.
A. Replace any piping, detectors
(E.4), or sections of detection
cable (E.5) that have been
damaged.
Note: The complete system
operation must be tested after
servicing, changing program-
ming, addition or deletion of
system components or after
any modification, repair, or ad-
justment to system hardware
or wiring. All components, cir-
cuits, system operation or soft-
ware functions known to be af-
fected by a change must be
100% tested.
B. Replace any sprinklers and/or
spray nozzles that have been
damaged or exposed to fire
conditions.
4. Restore AC power to Firecycle®III
Control Panel (E.3). Ensure that
standby batteries are charged or
charging.
Always connect and turn on AC
power source prior to connecting the
standby batteries. Connecting the
SYSTEM DATA
Firecycle®III 425 b March 15, 2004
FIRECYCLE®III
CYCLING SINGLE
INTERLOCKED PREACTION
OBSOLETE

standby batteries to the Firecycle®III
Control Panel (E.3) before the AC
power is connected and turned on
may damage the panel.
5. Return the system to service. Refer to
Section E: “PLACING THE
SYSTEM IN SERVICE”.
E. PLACING THE SYSTEM IN
SERVICE AT INITIAL
START-UP
(Refer to Figure 1 or 2, Page 425 d.)
Note: Refer to Firecycle®III Owner’s
Manual, and instructions provided in
Technical Data describing the Viking
Flow Control Valve and other system
components.
To Place the System in Service:
1. Verify that the Firecycle®III Control
Panel (E.3), Detector Circuits and
Detectors have been properly in-
stalled and energized according to in-
structions provided in Viking Techni-
cal Data and the Firecycle®III
Owner’s Manual.
2. Verify that the system has been prop-
erly drained. (When plunger is de-
pressed on drip check, (B.7) no water
should flow.) System Drain (D.3)
should be open. Verify that Emer-
gency Release (B.11) is closed.
3. Verify that the System Main Water
Supply Control Valve (D.1) is closed
and the Flow Control Valve (A.1) is
trimmed according to current Viking
Trim Charts and schematic drawings
for the system used.
4. Verify that the system water supply
piping is pressurized up to the closed
System Main Water Supply Control
Valve (D.1) and the priming line is
pressurized up to the closed Priming
Valve (B.1).
5. Restore system air pressure.
6. Open Priming Valve (B.1).
7. Reset the Firecycle®III Control Panel
(E.3): Open panel and press “RE-
SET”.
Release Solenoid Valve #1 (E.1)
should close. Flow from Release So-
lenoid Valve #1 (E.1) to Drain Cup
(B.14) should stop.
8. Open Flow Test Valve (B.15).
9. Partially open Main Water Supply
Control Valve (D.1) (If closed).
10. When full flow develops from Flow
Test Valve (B.15), close the Flow
Test Valve.
a: Verify that there is no flow from
open Auxiliary Drain (B.6).
11. Close Auxiliary Drain (B.6).
12. Fully open and secure the Main Wa-
ter Supply Control Valve. (D.1)
13. Verify that the Alarm Shut-off Valve
(B.9) is open and that all other
valves are in their normal operating
position.
14. Depress the plunger of Drip check
(B.7). No water should flow from the
Drip Check when the plunger is
pushed.
F. INSPECTIONS and TESTS
It is imperative that the system be in-
spected and tested on a regular basis.
Refer to INSPECTIONS and TESTS
recommended in current Viking Techni-
cal Data describing individual compo-
nents of the Viking Firecycle®III System.
Where difficulty in performance is expe-
rienced, the manufacturer or their autho-
rized representative shall be contacted if
any field adjustment is to be made.
The frequency of the inspections may
vary due to contaminated or corrosive
water supplies or corrosive atmo-
spheres. For minimum maintenance
and inspection requirements, refer to
the National Fire Protection Association
Pamphlet that describes care and main-
tenance of sprinkler systems. In addi-
tion, the Authority Having Jurisdiction
may have additional maintenance, test-
ing, and inspection requirements which
must be followed.
WARNING: Any system maintenance
which involves placing a control valve or
detection system out of service may
eliminate the fire protection capabilities
of that system. Prior to proceeding, no-
tify all Authorities Having Jurisdiction.
Consideration should be given to em-
ployment of a fire patrol in the affected
areas.
G. MAINTENANCE
NOTICE: The owner is responsible for
maintaining the fire protection system
and devices in proper operating condi-
tion.
Repairs
To perform maintenance on Detection
cable or Detectors without taking the en-
tire system out of service, disable input
zone #1. Disabling Input zone #1 dis-
ables the detection cable and detectors,
leaving the ability to operate the Deluge
System manually by use of the Emer-
gency Release or any manual pull sta-
tions (if provided) connected to input cir-
cuit 2.
Note: When zone #1 is disabled, if it is
necessary to activate the system using
the Emergency Release or a manual pull
station connected to input circuit #2, do
not reset the Emergency Release or
manual pull station used or the system
may cycle off.
When input zone #1 is disabled, the
Firecycle®III Detector Cable remains
charged with with a maximum short cir-
cuit current of 40mA of 24 VDC. When
disabled, an open circuit condition on in-
put circuit #1, will cause the trouble relay
to activate and the system trouble LED
to activate but will not activate any out-
put circuit associated with input #1.
To disable input circuits and associated
output circuits for maintenance: (Refer
to Firecycle®III Owner’s Manual and ap-
plicable Firecycle®III wiring diagram to
determine which output circuits are acti-
vated by each input circuit.).
1: Open the Firecycle®III Control Panel.
(E.3)
2: Press and hold TONE SILENCE
button
3: While holding the TONE SILENCE
button, press in sequence, the fol-
lowing buttons: ALARM SILENCE,
ALARM ACTIVATE, and SYSTEM
RESET.
A: The zone #1 LED will flash indicat-
ing Zone #1 is selected. To dis-
able zone #1, continue holding
the TONE SILENCE button and
press SYSTEM RESET once
(again). The yellow LED will flash
indicating zone #1 is disabled.
B: To disable subsequent zones,
continue holding the TONE SI-
LENCE button, and press the
ALARM SILENCE button to se-
lect the next zone (the LED will
flash on the zone selected) or
ALARM ACTIVATE button to se-
lect the previous zone. Continue
to holding ALARM SILENCE and
press SYSTEM RESET to disable
a selected zone. When disabled,
the yellow LED will flash indicat-
ing the zone is disabled.
4: When desired zones are disabled, re-
lease the TONE SILENCE button.
The Piezo sounder will sound.
5: To silence the Piezo, press TONE SI-
LENCE.
6: To re-enable a disabled zone, repeat
the procedure.
Note: If any zone has been disabled, the
Trouble Relay will activate and the Sys-
tem Trouble LED will flash. If a zone has
been disabled, an alarm that occurs on
that zone will flash the red zone LED, but
will not sound the Piezo or activate any
output circuit. If both power sources are
removed from the system, all zones will
be re-enabled upon restoration of
power. Disable status is lost.
Refer also to MAINTENANCE IN-
STRUCTIONS provided in current Vi-
king Technical Data describing individ-
ual components of the Viking Firecycle®
III System.
SYSTEM DATA FIRECYCLE®III
CYCLING SINGLE
INTERLOCKED PREACTION
March 15, 2004 Firecycle®III 425 c
OBSOLETE

Form No. F_100496
SYSTEM DATA FIRECYCLE®III
CYCLING SINGLE
INTERLOCKED PREACTION
March 15, 2004
Firecycle®III 425 d
Replaces page 425a-d dated April 28, 2000. (Added reference
to straight through valves and added air pressure setting chart.)
Figure 2
Figure 1
OBSOLETE