Commercial Fire Guidelines; Installing The Control's Circuit Board; Figure 3-3: Commercial Fire Installation Considerations - Honeywell VISTA-250FBPT Installation And Setup Manual

Commercial Fire Guidelines

For Commercial Fire installations, the following requirements apply (See Figure 3-3).
System components mounted inside the cabinet must be placed so that all power-limited wiring is separated from all
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non-power-limited wiring by ¼-inch (6.4mm).
Non-power-limited wiring that exits the control panel (i.e., transformer wiring) must be run in conduit.
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All unused knockouts must be plugged.
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All wiring that exits the control panel must be strain-relieved (e.g., tie-wrapped).
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Installing the Control's Circuit Board

To install the circuit board in the cabinet, perform the following steps:
Step Action
Confirm the Mounting Plate is installed securely in the cabinet (Figure 3-4, Detail A). Install the nylon
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standoffs (supplied) into the top corner holes of the mounting plate (Detail B.) Insert the top of the circuit
board onto the two standoffs at the top of the mounting plate.
Place the board flat and secure to the mounting plate with the three accompanying screws and spacers as
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shown in (Detail C.)
NOTES:
Make sure that the tabs on the side of the plate did not pop out during shipping and are inserted into the
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appropriate slots.
Make sure that the mounting screws are tight. This ensures that there is a good ground connection between the PC
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board and the cabinet.
Dress field wiring away from the microprocessor (center) section of the PC board. Use the mounting plate brackets
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on the left and right sidewalls of the cabinet for anchoring field wiring using tie wraps (Figure 3-3). These steps are
important to minimize the risk of panel RF interference with television reception.

Figure 3-3: Commercial Fire Installation Considerations

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