Fire System Test Procedure For Ul 985 Systems; Control Panel Description - Regency 4720 Installation Manual

Regency ® Model 4720 Control/Communicator Installation Manual (P/N 150476, Rev. A)

Fire System Test Procedure for UL 985 Systems

2.3.6
In a residential fire system, it is required to periodically test the bell (or bells) on standby power
only. This test must be performed weekly according to the following procedure:
1. Call the central station and report that you are going to conduct a test.
2. Make sure that the system is not armed.
3. Remove the two (2) screws which secure the power transformer enclosure cover (Model 4165
Transformer Housing).
4. Unplug the transformer from the 120-V
5. Press TEST, followed by the access code, at the touchpad. The bell (or bells) should sound for a
few seconds. The test will be recorded at the central station.
6. Plug the transformer back into the receptacle.
7. Replace the enclosure cover and secure with the two (2) screws. This completes the test
procedure.
Note: While the transformer is unplugged, the system may sound AC trouble. If this situation should
occur, press MUTE, MUTE to silence the trouble. The trouble will automatically clear within one
minute after the transformer has been reinstalled.

Control Panel Description

3
To avoid the risk of electrical shock, DO NOT apply power to
the Model 4720 until told to do so in this manual (Section 8).
Figure 3a represents the Model 4720 Revision L printed circuit board. Figure 3b shows the printed circuit board for
earlier revisions. The PC board contains the switches, fuses, electronic components and connectors needed to
install, monitor, and protect the system. The following paragraphs describe components that the installer will have
to connect, program, adjust, or periodically replace.
receptacle.
AC
CAUTION:
7
Revised 10/98