2-19
Chapter 2 Installing FACP Components
Step 2. Mounting the System Electronics (continued)
Mounting the
System Electronics
Bay
4. Mount the power distribution module (PDM) to the back box as shown in Figure 2-17.
Securely tighten all mounting screws. Refer to Table 2-9 for the recommended torque.
Table 2-9. Recommended Torque for Mounting Hardware
Figure 2-17. Mounting the PDM Bracket (2-Bay Box Shown)
5. If provided, mount the tamper switch assembly to the mounting studs as shown in
Figure 2-17. Refer to 4100-Series Tamper Switch Installation Instructions (579-195).
6. Using the hardware provided with the back box, insert the required number of mounting
screws to the right and left support holes in the back box as shown in Figure 2-18.
7. Tighten the mounting screws.
Note: Install the mounting screws to within 1/8" from the seated position.
Continued on the next page
Screw / Nut Size Recommended Torque
No. 6 7.9 to 8.7 inch/ounces (569 to 626 cm/grams)
No. 8 16.1 to 17.8 inch/ounces (1 159 to 1 282 cm/grams)
No. 10 26.8 to 29.7 inch/ounces (1 930 to 2 139 cm/grams)
PDM
MOUNTING
AREA
TAMPER SWITCH
MOUNTING STUDS
PDM
COVER
Use spacers
to secure
PDM to
cabinet
PDM
CONNECTORS
INSULATOR
CABINET
STANDOFF
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