Honeywell HPFF12CM User Manual

Installation NAC Circuit Wiring
20 HPFF12 NAC Expander — P/N 53576:B3 10/1/2018
2.3 NAC Circuit Wiring
For wiring sizes, see Section 6.5, “NAC Circuit Loop Wiring Requirements”.
2.3.1 Four NACs Configured for Class B (Style Y)
Figure 2.10 shows four NACs configured for Class B (Style Y).
TB4TB1
TB2
LEDs
REF+ REF– + IN – IN
+ OUT
– IN
+ OUT+ OUT
+ IN
– OUT
SIGNAL 1
SIGNAL 2
BATT+ BATT–
A+
N/O
N/C
COMM
N/O
N/C
COMM
AC FAIL
TROUBLE
1L1 1L2 2L1 2L2
3L1 3L2
4L1 4L2A–
+
-
+
-
+
-
+
-
-
+
-
+
-
+
-
+
Reference Resistor
H
P
F
F
1
2
N
A
C
C
l
a
s
s
B
.
w
m
f
Horn Strobe
Horn Strobe
Horn Strobe
EOL same as
Reference Resistor
Alarm Polarity Shown
• Trouble on NAC1
will illuminate
LED1 SIG1 TRBL.
• Trouble on NAC2
will illuminate
LED2 SIG2 TRBL.
• Trouble on NAC3
will illuminate
LED3 SIG3 TRBL.
• Trouble on NAC4
will illuminate
LED4 SIG4 TRBL.
NAC 4
NAC 3
NACs 1 - 3 are wired the same as NAC4 and use
an ELR which is the same as Reference Resistor.
NAC 1 NAC 2
Figure 2.10 Four NACs in Class B (Style Y)
NOTES:
1. Typical ELRs 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.

Honeywell HPFF12CM Specifications

General

Brand	Honeywell
Model	HPFF12CM
Category	Extender
Language	English