Tyco Fire Suppression & Building Products ANSUL AQUASONIC, Design, Installation, Recharge, And Maintenance Manual

Page: 96 / 141

SECTION IX
3-1-2010 Page 9-2
Resetting and Recharge
CHECK ELECTRICAL AND MECHANICAL EQUIPMENT
(Continued)
Repeat the following steps for each additional detector:
1. 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.
2. Remove the cocking lever.
3. Reset control unit in accordance with manufacturer’s
instructions. For AUTOPULSE control systems, refer to
the appropriate Detection and Control Manual.
NOTICE
Control unit will not reset until detectors
and remote electric manual pull stations
are reset.
4. 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.
After verifying operation of final detector, reset control unit
and rearm releasing device, repeating Steps 1 and 2.
Pressure Switch
Reset the pressure switch by completing the following
steps:
1. Make certain all pressure in the line to the switch has
been properly relieved.
2. Push in black knob on end of pressure switch plunger.
3. Make certain electrical function has been correctly
reset.
PLACE SYSTEM BACK IN SERVICE
Recharge Water Tank
Fill agent tank by completing the following steps:
1. Disconnect union at top of tank and place funnel in
opening or insert water hose.
2. Fill water tank to bottom of collar.
Note:
Fill tank with clean, debris-free, potable water;
de-mineralized water is recommended.
3. Clean fill opening threads and gasket seating surface.
4. Inspect threads in union nut and on union coupling for
nicks, burrs, cross-threading, and rough or feathered
edges. Clean union if necessary. Check union seams
for foreign objects.
5. Reconnect union and tighten securely.
Recharge Nitrogen Cylinders
The following steps must be followed when removing
discharged cylinders from the system:
1. Disconnect the flex bend from the cylinder(s) outlet.
2. Remove all actuators from the cylinder valves.
3. If necessary, install plug, Part No. 42411, into pneu-
matic actuation port and wrench tighten.
4. With cylinder secured in bracket, relieve any remaining
pressure in the cylinder by completing the following:
a) Make certain discharge cap IS NOT on valve outlet.
See Figure 1.
FIGURE 1
001515
Note:
Bleed-down device, Part No. 416656, CANNOT
be used on CV-98 valve.
DISCHARGE OUTLET
CAP MUST NOT BE
INSTALLED WHILE
BLEEDING DOWN
CYLINDER
CAUTION
!
Attach bleed down device, Part No. 426028, to fill
inlet of discharged cylinders only. Never attach this
device to fully charged cylinders as this will cause
high pressure to discharge out of the fill inlet. Also,
install device hand tight only. Do not wrench tighten.