Honeywell HPFF12 - 2: Two Nacs Configured for Class a (Style Z)

HPFF12 NAC Expander — P/N 53576:B 11/24/2010 27
NAC Circuit Wiring Installation
2.3.2 Two NACs Configured for Class A (Style Z)
Figure 2.11 shows two NACs configured for Class A (Style Z).
Figure 2.11 Two NACs in Class A (Style Z)
NAC 2
HPFF12NACClassA.wmf
Horn Strobe
Horn Strobe
Horn Strobe
Alarm Polarity
Shown
• Trouble on NAC1
will illuminate
LED1 SIG1 TRBL and
LED2 SIG2 TRBL
• Trouble on NAC2
will illuminate
LED3 SIG3 TRBL
and LED4 SIG4 TRBL
Note: NAC 2 in Class A;
no ELR required.
Note: NAC 1 Class A
wired same as NAC2.
NAC 1
NOTE:
1. Typical ELR's for new installations can be 3.9k or 4.7k ohm.
2. The same gauge wire must be used if two conductors are connected to the same terminal of
any terminal block.
3. Do not complete a continuous circuit around the screw terminal. There must be two separate
wires on either side of the screw at the terminal block. “T-tapping” is absolutely NOT ALLOWED.