Bosch F220-B6RS User Manual

Fire Alarm Systems | F220‑B6RS 24 VDC Four‑wire Detector Base with Sounder

F220‑B6RS 24 VDC Four‑wire Detector
Base with Sounder

Easy installation

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Interchangeable detector heads

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UL listed when used with F220 Series Detector Heads

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UL464 approved sounder driven by the detector head

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or the NAC circuit

The F220‑B6RS 24 VDC Four-wire Detector Base with
Sounder meets the requirements of UL464 for a notification
device and works with the F220 Series Photoelectric Smoke
and Heat Detectors. Power the sounder from the control
panel's NAC circuit or from auxiliary power.

Functions

Sounder Configuration

The output (sound pattern and synchronization) of the
sounders on a detection loop can be configured in four
different ways. Refer to the F220 Series Detectors
Installation Instructions (P/N: 4998138694) for instructions
on wiring and setting the F220‑B6RS detector base for
these configurations:

1. NAC Follower (Direct Wire) Configuration: In this
configuration, the sounders on the loop follow the
signal on the NAC terminals as programmed at the
control panel. Refer to the control panel's installation
manual for NAC configuration instructions. This
configuration requires an extra pair of supervised wires
for the sounder circuit.

2. Reverse Polarity Configuration: In this configuration
(not suitable for synchronized protocols; such as,
Cooper Wheelock, Gentex, or System Sensor), the
sounders in a loop activate due to reversed polarity on
the power line. The output pattern is not controlled by
the base in this operating mode; it follows the reversing
power signal on the detector head's terminals as
programmed at the control panel.

3. Local Annunciation Configuration: In this
configuration, each sounder is individually set for one
of the following patterns: Temporal (Code 3), March
Time, or Continuous Tone. Use a D275 Power
Supervision Module in this configuration to supervise
the detector loop.

4. Interconnection Configuration: In this configuration,
up to five detectors supervise the end of the detector
loop when interconnected by a common wire. All
sounders within the group activate together. Set all
units for the same output pattern (Temporal [Code 3],
March Time, or Continuous Tone). All interconnected
detectors are synchronized with and sound the pattern
of the originating detector.
The maximum wire length for connecting up to five units
is:

Wire Size Wire Length

18 AWG (1.2 mm) 300 ft (91 m)

16 AWG (1.5 mm) 450 ft (137 m)

14 AWG (1.8 mm) 750 ft (229 m)

Note To ensure interconnected units can signal an

alarm, the line load after the last detector on

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2 | F220‑B6RS 24 VDC Four‑wire Detector Base with Sounder

the interconnected detector loop must not
exceed 10 mA.

Certifications and Approvals

Region Certification

USA UL ULSZ: Audible Signal Appliances (UL464),

UROX: Smoke - Automatic Fire Dectectors
(UL268), UROX7: Smoke - Automatic Fire
Dectectors Certified for Canada (ULC­S529)

FM

CSFM 1700-1615: 105

NYC-MEA (117-05-E)

Installation/Configuration Notes

Compatibility Information
Four‑wire: Compatible with all UL Listed four‑wire control

panels. Refer to the control panel's Installation Instructions
for proper end‑of‑line (EOL) resistor selection.

Detectors: Compatible with the following F220 Series
Detector Heads:

F220‑P Photoelectric Smoke Detector

•

F220‑PTH Photoelectric Smoke Detector with +135°F

•

(+57°C) Heat Sensor

•

F220‑PTHC1 Photoelectric Smoke Detector with +135°F
(+57°C) Heat Sensor and Carbon Monoxide Sensor

Enhancement
F220‑135 Electronic Rate‑of‑Rise, Fixed Temperature

•

+135°F (+57°C) Heat Detector
F220‑135F Electronic Fixed Temperature +135°F

•

(+57°C) Heat Detector
F220‑190F Electronic Fixed Temperature +190°F

•

(+88°C) Heat Detector

1

The F220‑PTHC detects carbon monoxide (CO) as a
component of a fire. It is not a CO detector and cannot
activate an alarm in the presence of CO only.

Mounting Considerations

Depending on local regulations, surface mount the bases
using anchors, mollies, or wing nuts, or mount directly on
four‑inch square or octagonal electrical boxes or
single‑gang switch boxes.

Note The electrical box must be large enough to

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accommodate the number and size of
conductors specified by the National Electrical
Code or any local authorities having
jurisdiction (AHJ).

Wiring Considerations

In a four-wire system, the maximum loop length and number
of bases that can be placed on a loop depend on the voltage
drop on the power circuit. Use standard voltage drop
calculations to ensure that the last detector on the loop has
at least 16 V when all sounders and relays are powered.

Parts Included

Quant. Component

1 Detector base

1 Literature pack

Technical Specifications

Environmental Considerations

Relative Humidity: 0 to 95%, non‑condensing; 15% to 95%,

non‑condensing when used with CO sensor
model

Temperature (operating): +32°F to +100°F (0°C to +38°C)

Mechanical Properties

Color: Off-white

Dimensions (diameter x thick­ness)

Material: Fire‑resistant plastic

Outputs

Relay Type: Normally‑open (NO) Form A

Relay Rating: 0.5 A at 120 VDC or 120 VAC

Sounder Output: >85 dB at 10 ft (3 m)

Power Requirements

Voltage Range: 16.0 VDC to 30 VDC

Alarm Current

6-wire mode (4-wire base + two sounder power wires)

Relay: The relay draws 15 mA in alarm.

Steady Sounder: 24 VDC: 30 mA

4-wire mode

With Steady Sounder
and Relay:

Standby Current (base only): 30 VDC: 10 mA maximum

6 in. x 0.9 in. (15.2 cm x 2.3 cm)

30 VDC: 35 mA

24 VDC: 45 mA
30 VDC: 50 mA

Ordering Information

F220‑B6RS 24 VDC Four‑wire Detector
Base with Sounder

Four-wire detector base with sounder for use
with the F220 Series Photoelectric Smoke and
Heat Detectors.

Accessories

D275 Power Supervision Module

Line supervision device for four-wire fire de­tection circuits

F220‑B6RS 24 VDC Four‑wire Detector Base with Sounder | 3

F220-B6RS

D275

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4 | F220‑B6RS 24 VDC Four‑wire Detector Base with Sounder

Americas:

Bosch Security Systems, Inc.
130 Perinton Parkway
Fairport, New York, 14450, USA
Phone: [phone]
Fax: [phone]
[e-mail]
www.boschsecurity.us

© Bosch Security Systems Inc. 2010 | Data subject to change without notice
T1750697227 | Cur: en-US, V12, 4 Jul 2010

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Bosch Security Systems B.V.
P.O. Box 80002
5600 JB Eindhoven, The Netherlands
Phone: + 31 40 2577 284
Fax: [phone]
[e-mail]
www.boschsecurity.com

Asia-Pacific:

Robert Bosch (SEA) Pte Ltd, Security Systems
11 Bishan Street 21
Singapore 573943
Phone: [phone]
Fax: [phone]
[e-mail]
www.boschsecurity.com

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