Regency 4720 - Commercial Burglary Bell Wiring; Auxiliary Power for Supervised Bells

Regency
®
Model 4720 Control/Communicator Installation Manual (P/N 150476, Rev. A) Revised 10/98
35
Figure 10.1.1a: Auxiliary Power for Supervised Bells
10.2 Commercial Burglary Bell Wiring
Figure 10.2a shows the wiring of an external DC alarm bell. If you use a DC bell, you must either move the
shunt block to the left (“out”) position or, if there is no shunt block, cut the jumper labeled “J1” on the PC
board. You must also install the supplied transient suppressor Model 7800 as close as possible to the bell
contacts.
Note 1: When used in a UL Grade A Mercantile (UL 365), Grade A Local (UL 609) or Grade B Central Station (UL
1610) installation, an external alarm bell must be enclosed in UL Listed cabinet with tamper switches. The
AB-12 Bell and Housing manufactured by Ademco is UL approved for this purpose.
Note 2: CFM listed systems require one (1) listed audible driver to be installed inside the residence.
4160
AC
9227
18 VAC
1 6
4195
1 6
1.25 A EACH
+12 V
GND
+12 V
+12 V
6 1
22 7
SUPERVISION
+
_
+
_
MODEL 7630
EOL RESISTOR
BELLS
(1A MAX TOTAL)
4720
ZONES
23
38
34*
*TERM. 34 (ZONE 12) USED AS AN EXAMPLE
0476G15A.DSF