Tyco Fire Protection Products ANSUL PS-150 User manual

ANSUL®
FIRE SUPPRESSION SYSTEM
OPERATION AND MAINTENANCE
MANUAL
Part No. 78661-03

ASSEMBLY – OPERATION – MAINTENANCE – INSTRUCTIONS
ANSUL FIRE SUPPRESSION SYSTEM
MODEL PS-150
PS-300
PS-500
PS-1000
PS-2000
PS-3000
TYCO FIRE PROTECTION PRODUCTS, MARINETTE, WISCONSIN 54143-2542

This manual is intended for use with ANSUL Fire Suppression
Systems.
Those who operate, recharge, inspect, or maintain these systems
should read this entire manual. Specific sections will be of
particular interest, depending upon one’s responsibilities.
Fire suppression systems are mechanical devices. They need
periodic care. Inspection, to provide reasonable assurance that
the fire suppression system is fully charged and operable, will vary
from hourly to monthly, based on the needs of the situation.
Inspections should always be conducted at regular intervals.
Maintenance, to provide maximum assurance that the system will
operate effectively and safely, should be conducted at six-month
intervals, or earlier when indicated by an inspection.
Note: The converted metric values in this document are provided for dimensional reference only
and do not reflect an actual measurement.
ANSUL, AUTOMAN, and the product names in this material are marks and/or registered marks.
Unauthorized use is strictly prohibited.
2012-APR-27
78661-03
Copyright © 2012 Tyco Fire Products LP. All rights reserved.

SECTION PAGE/FORM NO./PART NO.
________ _______________________
Assembly 1 – 3
Operation 4
Recharge 5 – 7
Inspection 8
Maintenance 9 – 11
Temperature Correction Charts F-8833, F-8834
Nitrogen Cylinder Valves F-81397
Service and Repair F-8832
Pressure Regulator Test Manual F-78695
AUTOMAN II-C Releasing Device Manual PN17788
AUTOMAN II-C Explosion Proof PN31496
Releasing Device Manual
Parts Lists/Prints
TABLE OF CONTENTS

TO PREPARE THE ANSUL SYSTEM FOR PLACEMENT IN
SERVICE
1. Remove all cord, wrapping, and banding ties. Examine entire
system and component parts for concealed shipping damage
before placement or securement on site.
2. Install AUTOMAN II-C releasing device enclosure on cylinder
rack. Install control unit at desired location. Refer to drawings
(if provided), AUTOMAN II-C Releasing Device Manual, and
control unit manual.
3. If Required: Assemble and connect cylinder actuation line to
outlet on AUTOMAN II-C cartridge receiver. Refer to drawings
(if provided).
4. Install nozzles and distribution piping from hazard(s) to
system. Place a blow-off cap on each nozzle, where used.
Refer to drawings (if provided).
5. Install detection system, alarm(s), and pressure switch(es) (if
provided) to the control unit and/or releasing device. Make
connections from the control unit to the AUTOMAN II-C
releasing device. Refer to manufacturer’s instructions (if
provided), control unit manual, AUTOMAN II-C Releasing
Device Manual, and drawings (if provided).
6. Connect line power source to control unit in accordance with
manufacturer’s instructions and drawings (if provided).
7. When Provided: Install remote manual electric actuation
station(s). Refer to drawings (if provided).
8. When Provided: Connect actuation line tubing and fittings
from each remote actuator to system.
9. Pull ring pin and close RED Tank Valve.
10. Install bursting disc by completing the following steps:
a. Handle the bursting disc carefully. It is a precision product.
Do not bend or kink it. Install only one bursting disc per
tank.
b. Disconnect the union elbow.
c. Disassemble the SILVER bursting disc flange(s) or union.
d. Clean mating surface of bursting disc flange(s) or union.
e. Install bursting disc so that dome is directed away from
tank.
NOTICE
If bursting disc requires replacement, order as
follows:
System Model No. Disc Part No.
________________ ____________
PS-150 1568
PS-300 1568
PS-500 1905
PS-1000 3117
PS-2000 (3 inch) 3117
PS-3000 (3 inch) 3117
PS-2000 (4 inch) 13355
PS-3000 (4 inch) 13355
f. Tighten bursting disc flange(s) or union carefully to prevent
damage to the disc.
g. Reassemble union elbow.
11. Fill agent tank by completing the following steps:
a. Remove fill cap and place funnel in opening.
b. Fill tank to rated capacity with only the ANSUL
extinguishing agent specified on the nameplate.
c. Clean fill opening threads and gasket seating surface.
(Make certain gasket is in place before reinstalling fill cap.)
d. Secure fill cap and hand tighten.
12. Remove safety shipping cap from each nitrogen cylinder, and
make certain that pointer on pressure gauge is in the BLACK
operating range. (Retain shipping cap for future use.)
13. Install each pneumatic valve actuator by completing the
following steps:
a. Extend pneumatic valve actuator rod fully and slide
actuator arm on cross-shaft, engaging pin in hole on Quick-
Opening lever.
ASSEMBLY
Page 1
WARNING
!
Do not install cartridge at this time.
WARNING
!
Do not install cartridge at this time.
WARNING
!
Do not install cartridge at this time.
CAUTION
!
RED Tank Valve must be closed to prevent accidental
agent discharge when assembling the system.
CAUTION
!
All electrical connections should be performed by a
QUALIFIED ELECTRICIAN.
WARNING
!
Make certain safety plug is in place in cylinder valve outlet
before completing the following steps.
CAUTION
!
Flow of agent in piped system is critical. Use only the
ANSUL extinguishing agent specified on nameplate.
Failure to do so may result in system malfunction.
CAUTION
!
Be careful when removing fill cap as tank may have
elevated pressure. Attempting to remove fill cap when
tank has elevated pressure could result in personal
injury or damage to property.

TO PREPARE THE ANSUL SYSTEM FOR PLACEMENT IN
SERVICE (Continued)
NOTICE
Refer to Nitrogen Cylinder Valve illustration on
F-81397 for additional details.
b. Insert crescent ring into groove on cross-shaft.
c. Insert anchor stud through valve body and actuator pivot
member.
d. Engage and secure cap nut to anchor stud.
14. Remove safety plug from each nitrogen cylinder valve. (Retain
plug for future use.)
15. Connect high pressure hose to each nitrogen cylinder valve
and wrench tighten.
16. Make certain visual inspection seals on each nitrogen cylinder
valve are still intact. Replace any broken or missing visual
inspection seals (Part No. 25940).
17. When Provided: Install cartridge into booster actuator by
completing the following steps:
a. Remove screws at top and bottom, and slide cartridge
guard off.
b. Remove safety shipping cap and weigh cartridge. Replace
if weight is 1/2 ounce (14.2 g), or more, below weight
stamped on cartridge.
NOTICE
Cartridge Part Number is 4893. Order cartridge
under Shipping Part No. 5373 to assure
receiving correct replacement cartridge.
c. Check that puncture pin is fully retracted to assure safe
cartridge installation.
d. Screw cartridge into actuator and hand tighten.
e. Replace cartridge guard and install screws.
18. When Provided: Install cartridge into each remote actuator by
completing the following steps:
a. Pull ring pin and remove cartridge guard.
b. Remove safety shipping cap and weigh cartridge.
c. Replace cartridge if weight is 1/4 ounce (7.1 g), or more,
below weight stamped on models LT-5-R or LT-5-L.
Replace cartridge if weight is 1/2 ounce (14.2 g), or more,
below weight stamped on models LT-20-R or LT-30-R.
NOTICE
If cartridge requires replacement, order under
Shipping Part Number:
Shipping
Model Part No.
______ _______
LT-5-R 6979
LT-5-L 7013
LT-20-R 7032
LT-30-R 5373
d. Raise puncture pin to assure safe cartridge installation.
e. Screw cartridge into actuator and hand tighten.
f. Replace cartridge guard and insert ring pin through guard
into puncture lever link.
g. Seal with visual inspection seal (Part No. 25940).
19. Arm AUTOMAN II-C releasing device by completing the
following steps:
NOTICE
If release will not remain in ARMED position,
check detection system for source of alarm
signal.
a. Arm the releasing device by using the cocking lever (Part
No. 26310).
b. Remove the cocking lever.
c. Manually check releasing device by striking RED push
button.
d. Rearm releasing device by repeating Steps (a) and (b).
20. Install cartridge into AUTOMAN II-C releasing device by
completing the following steps:
a. With releasing device in the armed position, insert ring pin
into puncture pin assembly shaft.
b. Remove safety shipping cap and weigh cartridge. Replace
if weight is 1/2 ounce (14.2 g), or more, below weight
stamped on cartridge.
NOTICE
Cartridge Part Number is 4893. Order cartridge
under Shipping Part No. 5373 to assure
receiving correct replacement cartridge.
ASSEMBLY
Page 2
CAUTION
!
The Quick-Opening lever may be removed slightly
forward, approximately 1/4 inch (6.4 mm), to permit
installation of the anchor stud.
FORWARD MOVEMENT IN EXCESS OF 1/4 INCH
(6.4 mm) MAY RESULT IN ACTUATION OF THE
VALVE. If valve is accidentally actuated, close the valve
by completing Steps 2(b), 2(c), and 2(d) on Page 5.
WARNING
!
Do not place body or head in front of cylinder valve outlet.
If valve is accidentally operated, velocity of unrestricted
escaping gas is forceful enough to cause injury, especially
about the face and head.
WARNING
!
Do not strike “pull” lever when connecting hose to cylinder
valve.
CAUTION
!
Do not attempt to install cartridge before arming release.
WARNING
!
Do not install cartridge at this time.
CAUTION
!
Take all precautions to avoid firing the releasing device
when the ring pin is installed. Firing the release with the
ring pin in place will damage (possibly destroy) the
solenoid.

TO PREPARE THE ANSUL SYSTEM FOR PLACEMENT IN
SERVICE (Continued)
c. Hand tighten cartridge firmly into actuator.
d. Remove ring pin from puncture pin assembly shaft.
e. Close and secure releasing device enclosure cover.
f. Insert ring pin through RED strike button and seal with
visual inspection seal (Part No. 25940), unless
weatherproof enclosure is provided.
21. Return RED tank valve to OPEN position.
22. Insert ring pin through valve handle into bracket and seal with
visual inspection seal (Part No. 25940).
23. To give maximum assurance that the system will operate
effectively and safely, a maintenance examination should be
performed at this time.
24. Record date of placement in service and instruct personnel in
operation of the system.
ASSEMBLY
Page 3
CAUTION
!
Failure to remove ring pin will result in system
malfunction.
CAUTION
!
Do not hit RED button when closing cover.
CAUTION
!
Failure to open RED Tank Valve will result in system
malfunction.

OPERATION
Page 4
TO OPERATE THE ANSUL SYSTEM
Automatic Mode:
The system will function automatically and the alarm will sound (if
provided) upon activation of the detection system.
To Operate Manually:
When Provided: Pull ring pin, push lever on remote actuator.
OR
When Provided: Activate remote manual electric pull station in
accordance with manufacturer’s instructions.
OR
Pull ring pin, push RED strike button on AUTOMAN II-C releasing
device. This is not an option when provided with weatherproof
enclosure.
Alternate Manual Actuation:
If the system cannot be actuated by using any of the above
manual actuation methods:
1. Pull the Quick-Opening operating lever on each nitrogen
cylinder,
OR
2. Turn each cylinder handwheel counterclockwise to full open
position.

TO RETURN THE ANSUL SYSTEM TO SERVICE AFTER USE
1. If system was actuated manually, and AUTOMAN II-C
releasing device is in the ARMED position, complete the
following steps:
a. Pull ring pin from RED strike button and open enclosure
cover. If weatherproof enclosure is provided and RED strike
button is not visible, remove screws and enclosure cover.
NOTICE
Do not strike RED button.
b. Insert ring pin into puncture pin shaft.
c. Remove cartridge, install safety shipping cap, and set aside
in a safe location.
d. Remove ring pin from puncture pin shaft.
e. Strike RED button to disarm the releasing device.
2. Close each nitrogen cylinder valve by completing the following
steps:
a. Push GREEN Pressure Relief Valve Button to relieve
pressure in cylinder actuation manifold (upper manifold).
b. Turn handwheel counterclockwise to full open position.
c. Push Quick-Opening lever toward valve body while rotating
cross-shaft flat clockwise (when facing cross-shaft from
end with flat) to stop position.
d. Close valve by turning handwheel clockwise and hand
tighten.
3. Push GREEN Pressure Relief Valve Button to relieve pressure
in regulator manifold (lower manifold).
4. Reset each pressure switch to return additional electrically-
operated equipment to service, if provided.
5. Pull ring pin and close RED Tank Valve.
6. Replace bursting disc by completing the following steps:
a. Handle the bursting disc carefully. It is a precision product.
Do not bend or kink it. Install only one bursting disc per
tank.
b. Disconnect the union elbow.
c. Disassemble the SILVER bursting disc flange(s) or union.
d. Clean mating surface of bursting disc flange(s) or union.
e. Install bursting disc so that dome is directed away from
tank.
NOTICE
If bursting disc requires replacement, order as
follows:
System Model No. Disc Part No.
________________ ____________
PS-150 1568
PS-300 1568
PS-500 1905
PS-1000 3117
PS-2000 (3 inch) 3117
PS-3000 (3 inch) 3117
PS-2000 (4 inch) 13355
PS-3000 (4 inch) 13355
f. Tighten bursting disc flange(s) or union carefully to prevent
damage to the disc.
g. Reassemble union elbow.
7. Fill agent tank by completing the following steps:
a. Remove fill cap and place funnel in opening.
b. Fill tank to rated capacity with only the ANSUL
extinguishing agent specified on the nameplate.
c. Clean fill opening threads and gasket seating surface.
d. Examine fill cap gasket for elasticity, cuts, or weather
checking. Clean and coat gasket lightly with a good grade
of high heat-resistant grease, then replace.
e. Inspect threads in fill cap and on fill opening for nicks, burrs,
cross-threading, and rough or feathered edges. Clean and
coat fill cap threads lightly with a good grade of high heat-
resistant grease. (Make certain gasket is in place before
reinstalling fill cap.)
f. Secure fill cap and hand tighten.
NOTICE
If the fill cap is an indicator model, be sure the
red indicator stem is in the DOWN POSITION
before securing fill cap.
8. To replace a nitrogen cylinder, complete the following steps:
a. Remove crescent ring from cross-shaft.
b. Remove cap nut and anchor stud.
c. Slide actuator arm off cross-shaft.
d. Remove high pressure hose from cylinder valve.
RECHARGE
Page 5
WARNING
!
Do not install cartridge at this time.
WARNING
!
Do not place body or head in front of cylinder valve
outlet. If valve is accidentally operated, velocity of
unrestricted escaping gas is forceful enough to cause
injury, especially about the face and head.
CAUTION
!
RED Tank Valve must be closed to prevent accidental
discharge of agent when servicing the system.
CAUTION
!
Be careful when removing fill cap as tank may have
elevated pressure. Attempting to remove fill cap when
tank has elevated pressure could result in personal
injury or damage to property.

TO RETURN THE ANSUL SYSTEM TO SERVICE AFTER USE
(Continued)
e. Thread safety plug fully into cylinder valve outlet.
f. Secure cylinder shipping cap.
g. Remove cylinder retaining bracket and slide cylinder out.
NOTICE
Before installing replacement cylinder, read
cylinder gauge to make certain pointer is in the
BLACK operating range.
h. Slide in fully charged cylinder and secure retaining bracket.
i. Remove safety shipping cap from cylinder. (Retain cap for
future use.)
9. Install each pneumatic valve actuator by completing the
following steps:
a. Extend pneumatic valve actuator rod fully and slide
actuator arm on cross-shaft, engaging pin in hole on Quick-
Opening lever.
NOTICE
Refer to Nitrogen Cylinder Valve illustration
on F-81397 for additional details.
b. Insert crescent ring into groove on cross-shaft.
c. Insert anchor stud through valve body and actuator pivot
member.
d. Engage and secure cap nut to anchor stud.
10. Remove safety plug from each nitrogen cylinder valve. (Retain
plug for future use.)
11. Connect high pressure hose to each nitrogen cylinder valve
and wrench tighten.
12. Make certain visual inspection seals on each nitrogen cylinder
valve are still intact. Replace any broken or missing visual
inspection seals (Part No. 25940).
13. When Provided: Replace cartridge in booster actuator by
completing the following steps:
a. Remove screws at top and bottom, and slide cartridge
guard off.
b. Remove spent cartridge.
c. Remove safety shipping cap and weigh replacement
cartridge. Replace if weight is 1/2 ounce (14.2 g), or more,
below weight stamped on cartridge.
NOTICE
Cartridge Part Number is 4893. Order
cartridge under Shipping Part No. 5373 to
assure receiving correct replacement
cartridge.
d. Check that puncture pin is fully retracted to assure safe
cartridge installation.
e. Screw cartridge into actuator and hand tighten.
f. Replace cartridge guard and install screws.
14. When Provided: If remote actuator HAS been used, replace
cartridge by completing the following steps:
a. Remove guard and spent cartridge.
b. Remove shipping cap and weigh replacement cartridge.
c. Replace cartridge if weight is 1/4 ounce (7.1 g), or more,
below weight stamped on models LT-5-R or LT-5-L.
Replace cartridge if weight is 1/2 ounce (14.2 g), or more,
below weight stamped on models LT-20-R or LT-30-R.
NOTICE
If cartridge requires replacement, order under
Shipping Part Number:
Shipping
Model Part No.
______ _______
LT-5-R 6979
LT-5-L 7013
LT-20-R 7032
LT-30-R 5373
d. Raise puncture pin to assure safe cartridge installation.
RECHARGE
Page 6
WARNING
!
Use of plug is vital to your safety. If valve is accidentally
operated, velocity of unrestricted escaping gas is
forceful enough to cause injury, especially about the
face and head.
WARNING
!
Safety shipping cap must always be in place when
removing or installing a cylinder.
WARNING
!
Do not remove safety shipping cap to read gauge.
Read gauge through slots in shipping cap.
WARNING
!
Make certain safety plug is in place in cylinder valve outlet
before completing the following steps.
WARNING
!
Do not place body or head in front of cylinder valve outlet.
If valve is accidentally operated, velocity of unrestricted
escaping gas is forceful enough to cause injury, especially
about the face and head.
WARNING
!
Do not strike “pull” lever when connecting hose to cylinder
valve.
CAUTION
!
The Quick-Opening lever may be moved slightly
forward, approximately 1/4 inch (6.4 mm), to permit
installation of the anchor stud.
FORWARD MOVEMENT IN EXCESS OF 1/4 INCH
(6.4 mm) MAY RESULT IN ACTUATION OF THE
VALVE. If valve is accidentally actuated, close the valve
by completing Steps 2(b), 2(c), and 2(d) on Page 5.

TO RETURN THE ANSUL SYSTEM TO SERVICE AFTER USE
(Continued)
e. Screw cartridge into actuator and hand tighten.
f. Replace cartridge guard and insert ring pin through guard
into puncture lever link.
g. Seal with visual inspection seal (Part No. 25940).
15. Check piping and supports for mechanical damage or
corrosion.
16. Examine each nozzle for mechanical damage, corrosion, or
obstructions.
17. Place blow-off caps on nozzles, where used.
18. Check detectors for mechanical damage, corrosion and
obstructions.
19. When Provided: Reset remote manual electric pull station(s),
if used.
20. Reset control unit in accordance with manufacturer’s
instructions.
NOTICE
Control unit will not reset until detectors and
remote electric manual pull stations are reset.
21. If system was activated automatically and AUTOMAN II-C
releasing device is not in the ARMED position, complete the
following steps:
a. Pull ring pin from RED strike button and open enclosure
cover. If weatherproof enclosure is provided and RED strike
button is not visible, remove screws and enclosure cover.
b. Arm the releasing device by using the cocking lever (Part
No. 26310).
NOTICE
If release will not remain in ARMED position,
check detection system for source of alarm
signal.
c. Remove the cocking lever.
d. Insert the ring pin through the puncture pin shaft.
e. Remove empty cartridge from release.
f. Remove the ring pin from the puncture pin shaft.
g. Manually check releasing device by striking RED push
button.
h. Rearm releasing device by repeating Steps (b) and (c).
22. Check detection system by activating a detector. Control unit
and releasing device should activate upon signal from
detector. Allow sufficient time for detector to reset before
attempting to reset control unit or rearm releasing device.
23. Repeat Steps 20, 21(b), 21(c) and 22 for each additional
detector.
24. After verifying operation of final detector, reset control unit and
rearm releasing device, repeating Steps 20, 21(b) and 21(c).
25. Install cartridge into AUTOMAN II-C releasing device by
completing the following steps:
a. With releasing device in the armed position, insert ring pin
into puncture pin assembly shaft.
b. Remove safety shipping cap and weigh cartridge. Replace
if weight is 1/2 ounce (14.2 g), or more, below weight
stamped on cartridge.
NOTICE
Cartridge Part No. is 4893. Order cartridge
under Shipping Part No. 5373 to assure
receiving correct replacement cartridge.
c. Hand tighten cartridge firmly into release.
d. Remove ring pin from puncture pin assembly shaft.
e. Close and secure releasing device enclosure cover.
f. Insert ring pin through RED strike button and seal with
visual inspection seal (Part No. 25940), unless weather-
proof enclosure is provided.
26. Return RED tank valve to OPEN position.
27. Insert ring pin through handle into bracket and seal with visual
inspection seal (Part No. 25940).
28. Record date of recharge and notify operating personnel that
system is back in service.
RECHARGE
Page 7
CAUTION
!
Do not attempt to remove empty cartridge before arming
release.
CAUTION
!
Failure to open RED Tank Valve will result in system
malfunction.
CAUTION
!
Take all precautions to avoid firing the releasing device
when the ring pin is installed. Firing the release with the
ring pin in place will damage (possibly destroy) the
solenoid.
CAUTION
!
Take all precautions to avoid firing the releasing device
when the ring pin is installed. Firing the release with the
ring pin in place will damage (possibly destroy) the
solenoid.
CAUTION
!
Do not install replacement cartridge at this time.
CAUTION
!
Do not hit RED button when closing cover.
CAUTION
!
Failure to remove ring pin will result in system
malfunction.
CAUTION
!
Do not install ring pin in puncture pin shaft.

Inspection frequency will vary from hourly to weekly, based
on the needs of the situation, and should always be
conducted at regular intervals.
To provide reasonable assurance that the ANSUL system is
fully charged and operable:
1. Note general appearance of the system and component parts,
checking for mechanical damage or corrosion.
2. Check nameplates for readability, corrosion, or looseness.
3. Read each nitrogen cylinder gauge to make certain that
pointer is in the BLACK operating range and that visual
inspection seals on valve are intact.
4. Check agent tank by completing the following steps:
a. Remove fill cap from tank.
b. Check that tank is filled with free-flowing ANSUL
extinguishing agent to a level of not more than 6 in.
(152 mm) from bottom of fill opening for models PS-150
and PS-300; or 12 in. (305 mm) from bottom of fill opening
for models PS-500, PS-1000, PS-2000, and PS-3000.
c. Secure fill cap and hand tighten.
5. Check piping and supports for mechanical damage or
corrosion.
6. Examine each nozzle for mechanical damage, corrosion, or
obstructions.
7. Make certain a blow-off cap is on each nozzle, where used.
8. Examine detectors for mechanical damage, corrosion, and
obstructions.
NOTICE
Do not activate detection system. Should
activation of detection system be desired, the
maintenance examination procedures following
this section must be performed to provide
proper actuation of the fire suppression system.
9. When Provided: Check that the remote manual electric pull
station(s) is unobstructed .
10. Open cover of releasing device enclosure. Make certain
proper cartridge is installed.
11. Close and secure releasing device enclosure cover.
12. Insert ring pin through RED strike button and seal with visual
inspection seal (Part No. 25940), unless weatherproof
enclosure is provided.
13. When Provided: Check that each remote manual actuator is
unobstructed, that ring pin is properly inserted, and that visual
inspection seal is intact.
14. Make certain RED tank valve is ring pinned and sealed in the
OPEN position. Replace any broken or missing visual
inspection seals (Part No. 25940).
15. Notify personnel that the fire suppression system is back in
service.
16. Record date of inspection.
INSPECTION
Page 8
CAUTION
!
Do not hit RED button when closing cover.
CAUTION
!
Be careful when removing fill cap as tank may have
elevated pressure. Attempting to remove fill cap when
tank has elevated pressure could result in personal
injury or damage to property.

To provide maximum assurance that the ANSUL system will
operate effectively and safely, maintenance must be
performed at six-month intervals, or sooner when indicated
by an inspection.
NOTICE
The nitrogen cylinder regulators must be
tested annually using Regulator Test Kit (Part
No. 78689) and referring to Regulator Test
Manual (Part No. 78695) at the back of this
binder. To ensure that regulators will operate
properly during maintenance, perform the
regulator test before performing maintenance
procedures.
1. Pull ring pin and close RED Tank Valve.
2. Note general appearance of the system and component parts,
checking for mechanical damage or corrosion.
3. Check nameplates for readability, corrosion, or looseness.
4. Read each nitrogen cylinder gauge, note pressure, check
ambient temperature, and refer to Temperature Correction
Chart on F-8833 or F-8834. Replace cylinder if below
minimum pressure.
NOTICE
If cylinder requires replacement, refer to
Recharge Section, Steps 8 through 11 on Pages
5 through 6.
5. Check agent tank by completing the following steps:
a. Remove fill cap and check pressure relief vent (in cap) for
obstructions.
b. Examine fill cap gasket for elasticity, cuts, or weather
checking. Clean and coat gasket lightly with a good grade
of high heat-resistant grease, then replace.
c. Inspect threads in fill cap and on fill opening for nicks, burrs,
cross-threading, and rough or feathered edges. Clean and
coat fill cap threads lightly with a good grade of high heat-
resistant grease.
d. Make certain tank is filled with only free-flowing ANSUL
extinguishing agent to a level of not more that 6 in.
(152 mm) from bottom of fill opening for models PS-150
and PS-300; or 12 in. (305 mm) from bottom of fill opening
for models PS-500, PS-1000, PS-2000, and PS-3000.
NOTICE
Do not replace fill cap at this time.
6. Examine bursting disc by completing the following steps:
a. Handle the bursting disc carefully. It is a precision product.
Do not bend or kink it. Install only one bursting disc per
tank.
b. Disconnect the union elbow.
c. Disassemble the SILVER bursting disc flange(s) or union.
d. Clean mating surface of bursting disc flange(s) or union.
e. Install bursting disc so that dome is directed away from
tank.
NOTICE
If bursting disc requires replacement, order
as follows:
System Model No. Disc Part No.
________________ ____________
PS-150 1568
PS-300 1568
PS-500 1905
PS-1000 3117
PS-2000 (3 inch) 3117
PS-3000 (3 inch) 3117
PS-2000 (4 inch) 13355
PS-3000 (4 inch) 13355
f. Tighten bursting disc flange(s) or union carefully to prevent
damage to the disc.
g. Reassemble union elbow.
7. Check piping and supports for mechanical damage or
corrosion.
8. Examine each nozzle opening for mechanical damage,
corrosion, or obstructions.
9. Make certain a blow-off cap is installed on each nozzle, where
used.
10. Make certain RED tank valve is CLOSED.
11. Check detectors for mechanical damage, corrosion or
obstructions.
12. Check detection system by activating a detector. Control unit
and releasing device should activate upon signal from
detector. Alarm(s) should sound, if provided.
13. Check each nitrogen cylinder to verify that valve is open.
14. Reset control unit in accordance with manufacturer’s
instructions.
NOTICE
Control unit will not reset until detectors and
remote electric manual pull stations are reset.
15. Rearm the AUTOMAN II-C releasing device.
a. Pull ring pin from RED strike button and open enclosure
cover. If weatherproof enclosure is provided and RED strike
button is not visible, remove screws and enclosure cover.
MAINTENANCE
Page 9
CAUTION
!
RED Tank Valve must be closed to prevent accidental
discharge of agent when inspecting the system.
CAUTION
!
RED Tank Valve must be closed to prevent accidental
discharge of agent when inspecting the system.
CAUTION
!
Do not attempt to remove empty cartridge before arming
release.
CAUTION
!
Be careful when removing fill cap as tank may have
elevated pressure. Attempting to remove fill cap when
tank has elevated pressure could result in personal
injury or damage to property.

b. Arm the releasing device using cocking lever (Part No.
26310).
c. Remove the cocking lever.
16. Repeat Steps 12, 14, 15(b) and 15(c) for each additional
detector.
17. When Provided: Activate remote manual electric pull station
in accordance with manufacturer’s instructions. Control unit
and releasing device should activate upon signal from remote
station.
18. When Provided: Reset each remote manual electric pull
station in accordance with manufacturer’s instructions.
19. When Provided: Check each additional remote manual
electric pull station, repeating Steps 17, 18, 14, 15(b) and
15(c).
20. Close each nitrogen cylinder valve by completing the following
steps:
a. Push GREEN Pressure Relief Valve Button to relieve
pressure in cylinder actuation manifold (upper manifold).
b. Turn handwheel counterclockwise to full open position.
c. Push Quick-Opening lever toward valve body while rotating
cross-shaft flat clockwise (when facing cross-shaft from
end with flat) to stop position.
d. Close valve by turning handwheel clockwise and hand
tighten.
21. Push GREEN Pressure Relief Valve Button to relieve pressure
in regulator manifold, (lower manifold).
22. When Provided: Replace cartridge in booster actuator by
completing the following steps:
a. Remove screws at top and bottom, and slide cartridge
guard off.
b. Remove spent cartridge.
c. Remove safety shipping cap and weigh replacement
cartridge. Replace if weight is 1/2 ounce (14.2 g), or more,
below weight stamped on cartridge.
NOTICE
Cartridge Part No. is 4893. Order cartridge
under Shipping Part No. 5373 to assure
receiving correct replacement cartridge.
d. Check that puncture pin is fully retracted before installing
cartridge.
e. Screw cartridge into actuator and hand tighten.
f. Replace cartridge guard and install screws.
23. When Provided: Pull ring pin and push lever on actuator.
(Serves as functional test of valve actuators and nitrogen
cylinder valves.)
NOTICE
An actuator must be operated at every
maintenance examination to verify system
operation. Completion of all steps is vital to
assure that the system will operate effectively
and safely.
If additional actuators are provided, alternate
use of the actuators is recommended.
24. Check each nitrogen cylinder to verify that valve is open.
25. Close each nitrogen cylinder valve by completing the following
steps:
a. Push GREEN Pressure Relief Valve Button to relieve
pressure in cylinder actuation manifold (upper manifold).
b. Turn handwheel counterclockwise to full open position.
c. Push Quick-Opening lever toward valve body while rotating
cross-shaft flat clockwise (when facing cross-shaft from
end with flat) to stop position.
d. Close valve by turning handwheel clockwise and hand
tighten.
26. Push GREEN Pressure Relief Valve Button to relieve pressure
in regulator manifold (lower manifold).
27. When Provided: Reset each pressure switch and/or
accessory equipment.
28. When Provided: Replace cartridge in booster actuator by
completing the following steps:
a. Remove screws at top and bottom, and slide cartridge
guard off.
b. Remove spent cartridge.
c. Remove safety shipping cap and weigh replacement
cartridge. Replace if weight is 1/2 ounce (14.2 g), or more,
below weight stamped on cartridge.
NOTICE
Cartridge Part Number is 4893. Order
cartridge under Shipping Part No. 5373 to
assure receiving correct replacement
cartridge.
d. Check that puncture pin is fully retracted before installing
cartridge.
e. Screw cartridge into actuator and hand tighten.
f. Replace cartridge guard and install screws.
29. Re-read each nitrogen cylinder gauge, note pressure, check
ambient temperature, and refer to Temperature Correction
Chart on F-8833 or F-8834. Replace cylinder if below
minimum pressure.
NOTICE
If cylinder requires replacement, refer to
Recharge Section, Steps 8 through 11 on Pages
5 through 6.
30. Seal handwheel and operating lever with visual inspection
seals (Part No. 25940).
31. When Provided: If remote actuator HAS been used, replace
cartridge by completing the following steps:
a. Remove guard and spent cartridge.
b. Remove shipping cap and weigh replacement cartridge.
MAINTENANCE
Page 10
CAUTION
!
If release will not remain in ARMED position, check
detection system for source of alarm signal.

c. Replace cartridge if weight is 1/4 ounce (7.1 g), or more,
below weight stamped on models LT-5-R or LT-5-L.
Replace cartridge if weight is 1/2 ounce (14.2 g), or more,
below weight stamped on models LT-20-R or LT-30-R.
NOTICE
If cartridge requires replacement, order under
Shipping Part Number:
Shipping
Model Part No.
______ _______
LT-5-R 6979
LT-5-L 7013
LT-20-R 7032
LT-30-R 5373
d. Raise puncture pin to assure safe cartridge installation.
e. Screw cartridge into actuator and hand tighten.
f. Replace cartridge guard and insert ring pin through guard
into puncture lever link.
g. Seal with visual inspection seal (Part No. 25940).
32. When Provided: If remote actuator HAS NOT been used,
check cartridge by completing the following steps:
a. Pull ring pin and remove cartridge guard.
b. Remove cartridge and weigh it.
c. Replace cartridge if weight is 1/4 ounce (7.1 g), or more,
below weight stamped on models LT-5-R or LT-5-L.
Replace cartridge if weight is 1/2 ounce (14.2 g), or more,
below weight stamped on models LT-20-R or LT-30-R.
NOTICE
If cartridge requires replacement, order under
Shipping Part Number:
Shipping
Model Part No.
______ _______
LT-5-R 6979
LT-5-L 7013
LT-20-R 7032
LT-30-R 5373
d. Raise puncture pin to assure safe cartridge installation.
e. Screw cartridge into actuator and hand tighten.
f. Replace cartridge guard and insert ring pin through guard
into puncture lever link.
g. Seal with visual inspection seal (Part No. 25940).
33. Install cartridge in AUTOMAN II-C releasing device by
completing the following steps:
a. Check that releasing device is in the cocked position. If not,
repeat Steps 15(b) and 15(c).
NOTE
If release will not remain in ARMED position,
check detection system for source of alarm
signal.
b. Insert the ring pin through the puncture pin shaft.
c. Remove empty cartridge from release.
d. Remove safety shipping cap from replacement cartridge
and weigh cartridge. Replace if weight is 1/2 ounce
(14.2 g), or more, below weight stamped on cartridge.
NOTICE
Cartridge Part Number is 4893. Order
cartridge under Shipping Part No. 5373 to
assure receiving correct replacement
cartridge.
e. Hand tighten cartridge firmly into release.
f. Remove ring pin from puncture pin assembly shaft.
g. Close and secure releasing device enclosure cover.
h. Insert ring pin through RED strike button and seal with
visual inspection seal (Part No. 25940), unless
weatherproof enclosure is provided.
34. Secure agent tank fill cap. Hand tighten.
35. Return RED tank valve to OPEN position.
36. Insert ring pin through handle into bracket and seal with visual
inspection seal (Part No. 25940).
37. Record date of maintenance examination and notify operating
personnel that system is back in service.
MAINTENANCE
Page 11
CAUTION
!
Take all precautions to avoid firing the releasing device
when the ring pin is installed. Firing the release with
the ring pin in place will damage (possibly destroy) the
solenoid.
CAUTION
!
Failure to open RED Tank Valve will result in system
malfunction.
CAUTION
!
Failure to remove ring pin will result in system
malfunction.
CAUTION
!
Do not hit RED button when closing cover.

TECHNICAL BULLETIN
With Temperture Correction Chart
(23 ft3, 55 ft3, 110 ft3, 220 ft3 Cylinders)
Checking Nitrogen
Cylinder Pressures
One Stanton Street |Marinette, WI 54143-2542, USA |[phone] |www.ansul.com
© 2018 Johnson Controls. All rights reserved. All specifications and other information shown were
current as of document revision date and are subject to change without notice. |Form No. F-8833-03

Checking Nitrogen Cylinder Pressures 1
Temperature Correction Chart
ANSUL®fire suppression systems use compressed nitrogen as the expellant for the suppressing agents.
The instructions covering proper inspection and maintenance of this equipment state the 23 ft3(0.65 m3),
55 ft3(1.56 m3), 110 ft3(3.11 m3), and 220 ft3(6.23 m3) nitrogen cylinders should be replaced with fully charged cylin-
ders if the pressure is less than 1500 psi (103.4 bar) at 70 °F (21 °C). However, the pressure in the nitrogen cylinder
varies with changes in temperature.
Accordingly, the chart below has been prepared to assist users of ANSUL equipment in determining that the cylinder
being checked contains enough nitrogen to furnish a recommended operating pressure. NOTE: Working pressure
shall not exceed pressure stamped on cylinder.
Examples:
1. The nitrogen cylinder on an ANSUL fire suppression system indicates a pressure of 1450 psi (100 bar) on the
pressure gauge. The temperature of the cylinder is 40 °F (4 °C). Reference to the chart shows that this is above
the “temperature correction line” and the cylinder does not need to be replaced.
2. One of the nitrogen cylinders of an ANSUL fire suppression system indicates a pressure of 1350 psi
(93 bar) on the pressure gauge. The temperature of the cylinder is 80 °F (27 °C). Reference to the chart shows
that this is below the minimum recommended pressure for this temperature. The cylinder should be replaced by
a fully charged nitrogen cylinder.
Note: The metric values in this document are provided for dimensional reference only and do not reflect an actual measurement.
ANSUL, and the product names listed in this material are marks and/or registered trademarks. Unauthorized use is strictly prohibited.
CYLINDER
PRESSURE
(bar) psi
(124.1) 1800
(117.2) 1700
(110.3) 1600
(103.4) 1500
(96.5) 1400
(89.6) 1300
(82.7) 1200
(75.8) 1100
–65 –40 –20 0 20 40 60 80 100 120 130 °F
(–54) (–40) (–29) (–18) (–7) (4) (16) (27) (38) (49) (54) (°C)
NITROGEN CYLINDER TEMPERATURE
TEMPERATURE CORRECTION LINE
RECOMMENDED
PRESSURE
OPERATING