Pentair PSC-14-4-01 Notice D'utilisation page 7

Maintenance
Air Cell Replacement
HazaRDoUS PReSSURe. Read owner's
manual before attempting to install, operate, or service
this tank. To avoid possible equipment failure, severe
injury, and property damage, see "Rules for Safe
Installation and operation", page 2.
1. Disconnect the power to the pump.
2. To release the water pressure from the tank system,
open a faucet near the tank to drain the water.
3. Remove the pole piece cap from the tank and the
valve cap from the valve. Depress the valve stem to
release the air pressure from the air cell.
4. Remove the valve core to release the rest of the air
pressure (see Valve Core Replacement).
5. Remove the valve stem nut and washer.
6. With a screwdriver, pry the red c-clips out to remove.
7. Remove the polar boss cap. See Figure 7 for an
overall disassembly view.
Valve Stem Nut
Polar Boss Cap
C-Clips
Figure 7: Remove Pole Piece Cap, Valve Cap and
Retaining Nut, Clips, and Polar Boss Cap.
8. Disconnect the tank from the water supply line and
carefully lay it on its side (protect the sides of the
tank). DO NOT DROP.
9. With a large pair of slip-joint pliers, unscrew the
elbow adapter from the tank.
10. Remove air cell by reaching into the tank and pulling
it through the open top port. The tether pin should
come out of the elbow adapter as you pull.
11. Lubricate the elbow adapter O-Ring with O-Ring
lubricant.
12. Remove elbow adapter lid and push the tether pin
through from the top. From the bottom of the elbow
adapter lid, pull the head of the tether pin until the
fins hook it into place. Reinstall the elbow adapter lid
on the elbow adapter. See Figure 8.
Figure 8: Push tether pin through from the top. Pull the
head until the fins hook in into place.
Pole Piece Cap
Washer
O-Ring
5900 0112
6725 1212
13. While squeezing the air cell, push the valve end of
the air cell into the bottom of the tank. Push it in as
far as possible without losing the bottom of the air
cell in the tank.
14. Reinstall the elbow adapter, with new air cell in
place, in the bottom of the tank and tighten it against
the O-Ring to seal it.
15. Reach into the tank from the top and pull the air cell
into position.
16. Clean the tank sealing surface before installing the
top flange assembly.
17. Clean the sealing surface and groove of the polar
boss cap; re-lubricate and install the O-ring on the
polar boss cap.
18. Push the valve up through the polar boss cap.
19. Install the washer and valve stem nut on the valve.
20. Reinstall the polar boss cap, with new air cell
installed, in the top opening. Fasten it with two (2)
red c-clips.
21. Stand the tank back on its base and reconnect it to
the water supply line.
22. Recharge the tank to its proper air pressure (see
"General Safety", Page 2). Install the valve cap and
the pole piece cap.
23. Prime the pump (see the pump owner's manual) and
restart the system.
Valve Core Replacement
HazaRDoUS PReSSURe. To be sure air
valve and core cannot blow out of tank, release all air
pressure from tank before removing valve core.
1. Disconnect power to pump.
2. Drain ALL water in system by opening faucet closest
to tank.
3. Depress valve core to release ALL air pressure in
tank. When air stops coming out of valve, remove
core from inside of valve to release remaining
pressure. Thread new valve core into tank valve
and tighten.
NOTICE Do not overtighten.
4. Recharge tank with air pressure (see Figure 3)
according to Table 1. Install valve cap and pole piece
cap; reconnect power to pump.
Tank is ready for use.
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