Honeywell HPF24S8 - NAC Circuit Wiring; 1: Style y (Class B); 2: ZNAC-4 Class a Option Module

16 HPF24S Series Power Supplies — P/N 52751:E1 4/14/2011
Installation NAC Circuit Wiring
2.2 NAC Circuit Wiring
2.2.1 Style Y (Class B)
The standard configuration for NACs is Style Y (Class B) as shown in Figure 2.3.
2.2.2 ZNAC-4 Class A Option Module
The ZNAC-4 is an optional Class A conversion module which mounts to connector J3 on the upper
right side of the HPF24S circuit board. This module allows the HPF24S6 or HPF24S8 to support
Style Z (Class A) Notification Appliance Circuits.
Figure 2.3 NAC Style Y (Class B)
4.7K ELR
Horn Strobe
Horn Strobe
Horn Strobe
Alarm Polarity Shown
HPF24S Circuit Board
24fsclsb.wmf
Figure 2.4 Style Z (Class A) NACs using ZNAC-4 Option Module
ZNAC-4 Option Module
J3
Horn Strobes
ZNAC-4
Alarm Polarity
Shown
24fsclsa.wmf
HPF24S Circuit Board