SilentKnight B501 User Manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS

3

SHEILD

2(+)

1(–)

BASE
TERMINALS

TAMPER PROOF

TAB

3

2

1

3

2

1

(–)

(+)

+-

UL LISTED COMPATIBLE

CONTROL PANEL

CAUTION: DO NOT LOOP WIRE
UNDER TERMINAL 1 OR 2.
BREAK WIRE RUN TO PROVIDE
SUPERVISION OF CONNECTIONS.

CLASS A OPTIONAL WIRING

REMOTE

ANNUNCIATOR

(–)

(+)

3

2

1

3825 Ohio Avenue, St. Charles, Illinois 60174

B501 Plug-in Detector Base

SPECIFICATIONS

Diameter: 4.0 inches (10.2cm)
Mounting: 50mm, 60mm, and 70mm centers

Electrical Ratings – includes base and detector

Voltage Range: 15 to 32 VDC
Standby Current (Nominal): 150µA at 24 VDC
Power-Up Surge at Max. Rated Voltage: 1.5mA–Sec.
LED Current (Nominal): 6mA at 24 VDC
Operating Temperature Range: Refer to applicable sensor Operating Temperature Range
using the Base/Sensor Cross Reference Chart at http:\\www.systemsensor.com

BEFORE INSTALLING

Please thoroughly read the System Sensor manual, System Smoke Detectors
Application Guide, which provides detailed information on detector spacing,

placement, zoning, wiring, and special applications. Copies of this manual are
available at no charge from System Sensor.

GENERAL DESCRIPTION

The B501 is a plug in detector base intended for use in an intelligent system with
screw terminals provided for power (+) and (–), and remote annunciator con­nections. The communication takes place over the power (+) and (–) lines.

BASE TERMINALS

No. Function

1 Power (–), Remote Annunciator (–)

2 Power (+)

3 Remote Annunciator (+)

FIGURE 1. TERMINAL LAYOUT:

For signal wiring (the wiring between interconnected detectors and modules),
it is recommended that the wiring be no smaller than 18 gauge (1.0 square
mm). Wire sizes up to 12 gauge wire (2.5 square mm) may be used with the
base. For best system performance, the power (+) and (–) loop wires should
be twisted pair or shielded cable installed in separate grounded conduit to
protect the loop from extraneous electrical interference. If a cable shield is pro­vided, the shield connection to and from the base must be continuous by us­ing wire nuts, crimping, or soldering as appropriate for a reliable connection.

Wire Connections are made by simply stripping about 3⁄8 of an inch of insula­tion from the end of the wire (use strip gauge molded in base), sliding the
bare end of the wire under the clamping plate and tightening the clamping
plate screw. Do not loop the wire under the clamping plate.

The zone wiring of the detector base should be checked before the detector
heads are installed in them. The wiring should be checked for continuity, po­larity in the base, and dielectric tests.

The base contains a label to write the zone, address, and type of detector to
be installed at that location. This information is used to set the address of the
detector head that will later be plugged into the base and to verify the type
required for that location.

FIGURE 2. TYPICAL WIRING DIAGRAM FOR 2-WIRE LOOP:

I56-0357-008R

1-800-SENSOR2, FAX: [phone]

www.systemsensor.com

C0133-00

TAMPERPROOF FEATURE

NOTE: Do Not use the tamper-resistant capability if the XR2 or XR2B Removal
Tool will be used. This detector base also includes an optional tamperproof
feature that when activated prevents removal of the detector without the use
of a tool.

WIRING INSTALLATION GUIDELINES (SEE FIGURE 2)

All wiring must be installed in compliance with the National Electrical Code

C0131-00

and the local authority having jurisdiction. Proper wire gauges should be
used. The conductors used to connect the smoke detectors to control pan­els and accessory devices should be color-coded to prevent wiring mistakes.
Improper connections can prevent a system form responding properly in the
event of a fire.

To activate this feature, simply break off the tab on the detector base shown in
Figure 3A, and install the detector. To remove the detector from the base once
the tamperproof feature has been activated, place a small-bladed screwdriver
into the small hole on the side of the base and push the plastic lever away
from the detector head (see Figure 3B). This will allow the detector to be ro­tated counterclockwise for removal.

The tamperproof feature may be defeated by breaking and removing the plas­tic lever from the base, however this prevents ever using the feature again.

D550-02-00 1 I56-0357-008R

REMOTE ANNUNCIATOR (RA400)

PLASTIC LEVER

BREAK TAB AT DOTTED LINE BY
TWISTING TOWARD CENTER OF BASE.

SCREWDRIVER TO PRESS PLASTIC LEVER
IN DIRECTION OF ARROW

SCREWDRIVER TO PRESS PLASTIC LEVER
IN DIRECTION OF ARROW

STRIPPED WIRE

WIRE WITH SPADE LUG

The remote annunciator is connected between terminals 1 and 3 using the
spade lug terminal packed with the remote annunciator. The spade lug termi­nal is connected to the base terminal as shown in Figure 4.

It is not acceptable to have three stripped wires under the same wiring termi­nal unless they are separated by a washer or equivalent means. The spade lug
supplied with the model RA400 is considered an equivalent means. See Figure
2 for proper installation.

FIGURE 3A. ACTIVATING TAMPERPROOF FEATURE:

C0132-00

FIGURE 3B. REMOVING DETECTOR HEAD FROM BASE:

FIGURE 4. CONNECTION TO REMOTE ANNUNCIATOR TERMINAL:

Please refer to insert for the Limitations of Fire Alarm Systems

C0132-00

C0116-00

System Sensor warrants its enclosed smoke detector base to be free from defects in ma­terials and workmanship under normal use and service for a period of three years from
date of manufacture. System Sensor makes no other express warranty for this smoke
detector base. No agent, representative, dealer, or employee of the Company has the au­thority to increase or alter the obligations or limitations of this Warranty. The Company’s
obligation of this Warranty shall be limited to the repair or replacement of any part of the
smoke detector base which is found to be defective in materials or workmanship under
normal use and service during the three year period commencing with the date of manu­facture. After phoning System Sensor’s toll free number 800-SENSOR2 (736-7672) for a
Return Authorization number, send defective units postage prepaid to: System Sensor,

D550-02-00 2 I56-0357-008R
©2008 System Sensor

THREE-YEAR LIMITED WARRANTY

Repair Department, RA #__________, 3825 Ohio Avenue, St. Charles, IL 60174. Please
include a note describing the malfunction and suspected cause of failure. The Company
shall not be obligated to repair or replace units which are found to be defective because
of damage, unreasonable use, modifications, or alterations occurring after the date of
manufacture. In no case shall the Company be liable for any consequential or incidental
damages for breach of this or any other Warranty, expressed or implied whatsoever, even
if the loss or damage is caused by the Company’s negligence or fault. Some states do not
allow the exclusion or limitation of incidental or consequential damages, so the above
limitation or exclusion may not apply to you. This Warranty gives you specific legal
rights, and you may also have other rights which vary from state to state.