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PROPRIETARY AND CONFIDENTIAL DRAFT 28/Feb/03

4.22 Local-Mount Transducer and DISS Demand Flow Valve Assembly for the Conversion Kit housed
in the Area Line Pressure Alarm (P0321) Rough-In Box from Hill-Rom or Medaes Only
Chapter 4: Removal, Replacement, and Adjustment Procedures
4. Check the mounting position of the faulty transducer (A) and DISS
demand flow valve (C) (see figure 4-23 on page 4-59).

• If the faulty transducer (A) and DISS demand flow valve (B) are not
mounted underneath the power supply assembly (C), go to step 5.

• If the faulty transducer (A) and DISS demand flow valve (B) are mounted
underneath the power supply assembly (C), remove the power supply
assembly (C) by performing the following steps:

a. Disconnect the two flag terminals (D) supplying power to the Area
Alarm Breakout P.C. Board (E).
b. Remove and save the two screws (F) securing the power supply
assembly (C) to the mounting bracket (G).
c. Without putting excessive strain on the input power wiring (H) or the
ground wire (I), set the power supply assembly (C) to the side.
d. Remove and save the two screws (J) securing the mounting bracket (G)
to the rough-in box (K).

e. Remove and save the mounting bracket (G).

Figure 4-23. Transducer and DISS Demand Flow Valve
4

MedPlus TotalAlert™ Alarm Network Operation and Maintenance Manual (man291ra) Page 4 - 59