Fire-Lite MS-10UD Series FACP - Manual (Page 32)

32 MS-5UD & MS-10UD Series Manual — P/N 52626:C4 3/7/2014
Installation Output Circuits
2.4 Output Circuits
2.4.1 Notification Appliance Circuits
Total current drawn from the four Style Y (Class B) Notification Appliance Circuits as well as other
DC power outputs cannot exceed 3.0 amps for the MS-5UD-3(E), MS-10UD-3(E) [2.5 amp maxi-
mum per NAC] powered by the FLPS-3 power supply or 7.0 amps for the MS-5UD-7(C/E), MS-
10UD-7(C/E) [3.0 amps maximum per NAC] powered by the FLPS-7 power supply (refer to
“Power Supply Calculations” on page 116). Each circuit is supervised, power-limited and provides
special application power. Refer to the Fire•Lite Device Compatibility Document for a listing of
compatible notification appliances.
The NACs can be converted to Style Z (Class A) by installing the optional Class A Converter mod-
ule. Refer to “CAC-5X Class A Converter Module” on page 37.
For FCC compliance with Class B wiring, a ferrite bead (supplied) is required for NAC 1 and for
NAC 2. If using both NAC 1 and NAC 2 with Class B wiring, a single ferrite may be used with
wiring as shown in Figure 2.7.
Figure 2.7 NAC Connections
Class B Notification Appliance Circuits (supervised and power-limited)
4.7 K , ½ watt resistor P/N:71252
Dummy load any unused circuits (P/N: 71245)
Polarized Bell
Polarized Strobe
Polarized Horn Polarized Horn
Polarized Horn-Strobe
Polarized Bell
Notification Appliance Circuit
polarity shown in alarm condition
ms-1
0UD
na
c.w
mf
+ - + -
Ferrite Bead
p/n 50116546-001