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Installation, Operation, and Maintenance Manual # 509252 Rev R 105
Air Pressure Verification
To test air pressure inside the irradiator, remove one cover plate screw and, using a
magnehelic, place the end of the tube over the screw hole (see Figure 43). For the
I310M/I311M and I310M-D/I311M-D, the pressure should be 447-596 Pa (1.8-2.4”
H
2
O) with respect to outside (ambient) air.
For the I310MB irradiator (modular blower), pressure should be 447 - 822 Pa (1.8 to
3.3” H
2
O).
Figure 43. Air Pressure Test Points
Air Pressure Switch Replacement
1. Remove the irradiator cover.
HV Connector (J11)
Cover Plate
Cover
Screws