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Pressure Systems, Inc. 9016 Upgrade Instructions
www.PressureSystems.com8
C1 tube
Figure 7a
PC-327 Board
C4 tube
C4 tube
P1 connection
Figure 8
PC-322/323 Boards
P3
connection
P6 connection
Installing the PC-322/323 Boards
As previously mentioned, the PC-322 and the PC-323 boards will arrive to you completely
connected and may be installed very similarly to the installation of the old PC-280 board. (See
Figure 8.)
(1) Use the same precautions as previously noted when removing these boards from their
protective shipping container; i.e., prevention of electrostatic discharge damage.
(2) The calibration valve control wires are attached to connector P6 (as shown in Figure 8).
The routing of these wires will need to be changed during the upgrade. The wires connected
to the four pin P6 connector will need to be freed from about one-half of the white spiral
wire wrap. This may be accomplished by unwinding approximately half of the nylon spiral