3.3.2 AC supply wiring
Adhere to the following guidelines when wiring AC Power. See Safety ground/ ferrite bead for information about attaching the ferrite bead
to the AC power wires.
• The AC power must be wired from a dedicated circuit breaker or fuse, rated no more than 20 A, in accordance with NFPA-72, NEC, and
local codes.
• Before handling the AC feed, verify that it is not live using a voltmeter. Make sure the circuit is de-energized and tagged to prevent
injury.
• The AC supply wiring must be 14 AWG minimum to 12 AWG maximum.
• Connect a 12 AWG copper ground wire from safety ground in the electrical distribution panel to the panel safety ground stud.
• Input voltage:
- 120 VAC, 50/60 Hz.
- 240 VAC, 50/60 Hz.
• It is not necessary to select configuration settings.
• Use a pure sine wave type UPS to supply the 4007ES. Do not use a modified sine wave.
3.3.3 Battery guidelines
Use a fused harness to connect the backup batteries. Use harness 734-304 for a NAC power supply. The harness is shipped with the
panel. The mating spade lug on the battery should be 0.250 in. X 0.032 in. (6.35 mm X 0.81 mm). If another size is needed, you need to
replace the battery terminal connectors on the supplied battery harness.
• The AUTOPULSE Z-20 battery charger supports up to 33 Ah batteries (maximum) within UL864 and ULCS527 guidelines.
- 18 Ah batteries can fit inside the box.
- 25 Ah and 33 Ah batteries use 2081-9282 (red 25 Ah or 33 Ah) or 4009-9801 (beige 25 Ah).
• To minimize the power losses due to wiring from the external battery box to the AUTOPULSE Z-20, use at least a 12 AWG wire. Mount
the battery box within 20 feet (609.6 cm) of the panel in accordance with the mounting instruction label in the box. All interconnecting
wiring must be enclosed in conduit.
• Seismic battery brackets can be used internally in the AUTOPULSE Z-20 box (the 2081-9401: 12.7 Ah bracket, and the 2081-9402: 18
Ah bracket). For more information on how to install the seismic brackets, see the Battery Bracket installation instructions (579-944).
• Battery rating calculations include a minimum 20% safety margin above the calculated amp-hour capacity required (per NFPA 72).
3.4 Power
To finish the installation, complete the following steps: :
1. Reinstall the power supply and the electronics.
2. To install the batteries, complete the following steps:
a. Place the first battery on the left side of the panel to avoid interference with the DACT, if installed.
Note: The battery terminals should face the front of the box.
b. Insert the second battery and make sure it is closely positioned beside the first battery.
c. Wire the batteries in series such that you have 24 V. Use the white wire provided to bridge the batteries together, see Figure 11.
Important: Verify all field wiring before applying any power to the panel.
page 13 579-1102AR Rev C
Z-20 Agent Releasing Panel Installation Manual
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