and carefully remove the bowl and filter. Discard the old filter, clean out the bowl
with a lint-free cloth, and install a new filter. (Do not attempt to wash out and re-
use an old filter. It is a single-use device and will not re-seat correctly.)
F)
Prior to reassembly, inspect the bowl to ensure the large O-ring seal is clean
and properly lubricated and seated before reinstalling. Hand-thread the tank
back onto the Filter Cap Assembly, taking care not to unseat the O-ring. Use the
Filter Bowl Wrench provided with the system to tighten the bowl.
G)
Return the Bowl Assembly to vertical position and tighten the Dielectric Filter
Assembly Lock Bolt.
H)
After filter replacement the system must be completely refilled and bled. Follow
section 3.7 for recharge and bleed procedure. If water is not being drawn into the
system, it is likely that the O-ring is incorrectly installed. Re-tilt the assembly and
re-install the bowl after O-ring seal is rectified.
3.7
System Bleeding and Charging Procedure:
System maintenance and connecting/disconnecting system components can cause
air to become entrapped in the DI water system. Bleeding and charging is sometimes
required to assure there is no trapped air in the DI system.
Note: During the following operations there may be some “screeching” from the
Mobile Service Unit Pressure Regulator as the air is bled out of the system.
This is normal and will disappear as the system is successfully bled.
A)
Enter maintenance mode on the Touch-Screen Display, attach the Fill/Drain
Tubing and run the Top-Off procedure (see Section 3.4) to assure the system is
completely filled.
B)
In the Maintenance Screen on the Touch-Screen Display, run the Empty
Sediment Tank function (see Section 3.5). Water and entrapped air will be
expelled through the tubing, until you achieve a strong stream of water. After
expelling approximately 1 gallon of water the pump will automatically stop. The
system will prompt you to confirm that you are resetting the Sediment Tank
Counter. Respond by pressing the No button.
C)
Re-run the “Top-Off” procedure to refill the system (see Section 3.4).
This procedure should be sufficient to clear excess air out of the system. Repeat this
procedure as necessary to bleed air from the system.
3.8
Checking Vacuum and pressure (CP1-SY-151 only):
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