68
PROCEDURE 21
SIEVE BED PRESSURE CHECK
AFTER TESTING (FIGURE 4)
1. Insert 1/4-inch plug and 1/4 x 2-inch silicone
tubing onto the "T" fitting and secure with 1/4-
inch clamp.
2. Reinstall the cabinet onto the base of the con-
centrator.
NOTE: Adjust the concentrator to MAXIMUM
liter flow (3 liters for 3LX, 5 liters for 5LX/5LXO2
and 6 liters for 6LXO2).
NOTE: Wait approximately 5 minutes to allow
system pressures to achieve proper equallibrium
before testing.
4. The pressure in the concentrator should rise
within 20 seconds to 20 PSIG + .3 (BEFORE
97I) and 21 PSIG + .3 (AFTER 97I) and shift
the 4-way valve to the opposite sieve bed.
5. After the 4-way valve shift, the pressure in the
concentrator will drop to 14 PSIG + 2 before ris-
ing within 20 seconds to 20 PSIG + .3 (BEFORE
97I) and 21 PSIG + .3 (AFTER 97I) and shift
the 4-way valve to the opposite sieve bed.
6. If pressure reading is 20 PSIG + .3 (BEFORE
97I) and 21 PSIG + .3 (AFTER 97I) when both
valve shifts are made, proceed to STEP 9.
7. If pressure in the concentrator does not fall into
the specifications listed above, refer to the
TROUBLESHOOTING section in this manual.
8. Turn the concentrator OFF.
9. Unclamp the pressure gauge and remove it from
the "T" fitting.
PROCEDURE 21 - SIEVE BED PRESSURE TAP-IN KIT INSTALLATION AND BED
PRESSURE CHECK (FIGURES 1, 2 & 3)
S
I
E
V
E
B
E
D
P
R
E
S
S
U
R
E
Pressure
Gauge
FIGURE 3 - PRESSURE TESTING
Adjustable Clamp
Product Tank
1/4-inch
Clamp
STEP 1.
Restrictor
SHOWN for
Clarity
1/4-inch
Clamp
FIGURE 4 - AFTER TESTING
Restrictor
SHOWN
for Clarity
1/4-inch
Plug
Summary of Contents for 3LX
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