Wiring Guidelines; Field Wiring - Wheelock PSC-2420-B Installation Instructions Manual

20 amp, 24vdc power supply battery charger unit
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This panel shall be mounted in a location within the environmental limits specified in the latest UL Standard 864 for indoor
control panels. The panel shall not be located in a hazardous area.
: In order to comply with the latest NFPA and UL requirements for interconnection of fire alarm control equipment,
CAUTION
this panel must be located in the same room as, and within 20 feet of, listed compatible units with the wiring enclosed in conduit and
properly connected to such control panel.
Procedure
1. See Figure 1 for mounting hole layout.
2. Drill mounting holes for appropriate screws and anchors to ensure secure mounting to the type of surface at the selected
location.
3. Prevent dust and dirt contamination of the panel during installation. This contamination can interfere with the operation and
reduce the life of the equipment.
4. Open the door. Mount the panel.

WIRING GUIDELINES:

The National Electric Code limits the maximum number of conductors that can be installed in conduit and wiring
CAUTION:
boxes depending on the size of the conduit, the volume of the boxes, and the gauge of the wire used. Make sure that wiring used for
installation complies with the latest NEC, NFPA, Local, State, County or Province requirements.
The National Electrical Code defines the types of circuits for protective signaling systems as either power limited circuits or non-
power limited circuits. The SAFEPATH circuits have been designed as non-power limited circuits.

Field Wiring:

Before installation, the system specifier shall determine the proper wire gauge for all field wiring and ensure that all wiring
complies with the latest NEC, NFPA, Local, State, County of Province Requirements.
The wiring terminals are designed to accept #12 to #22 American Wire Gauge (AWG) (one wire per terminal). When connecting
field wiring to terminals, refer to Figure 2.
Check the integrity of all field wiring following directions in the "Field Wiring Checkout" section. Confirm that the specified
cable is installed and there is continuity between required points (no "open circuits"), with no unwanted shorts to other conductors,
chassis, or earth ground. Perform the field wiring checkout before making any connections to the wiring terminals.
14.00"
14.00"
CONDUIT ENTRANCES (TYP. TOP & BOTTOM)
Figure 1.
Panel Mounting
GROUND
TERMINALS
17.00"
P83572 C
Sheet 3 of 8

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