Bosch FAH-T 420 User Manual

1 Automatic Fire Detectors FAP-/FAH-420 Series
1.1 Intended use
The devices are designed and produced to detect and indicate hazardous fire. They include single- sensor and
multi-sensor versions.
1.2 Technical data
Operating voltage 15 V DC to 33 V DC
Current consumption < 0.55 mA
Alarm output Per data word by two-wire signal line
Indicator output Open collector connects 0 V over 1.5 kΩ through, max.
15 mA
Dimensions without base / with base Ø 99.5 x 52 mm / Ø 120 x 63.5 mm
Housing material Plastic, ABS (Novodur)
Housing color White, similar to RAL 9010, matt finish
Weight Without / With packaging
– FAP-DOTC 420 Approx. 80 g / Approx. 135 g
– FAP-DOT 420, FAP‑DO 420 Approx. 75 g / Approx. 125 g
– FAP-OTC 420 Approx. 80 g / Approx. 125 g
– FAP-OT 420, FAP‑O 420, FAP‑O 420 KKW,
FAH‑T 420, FAH‑T 420 KKW
Approx. 75 g / Approx. 115 g
Response sensitivity
– Optical part In accordance with EN 54 T7 (programmable)
– Thermal maximum part > 54 °C / >69 °C
– Thermal differential part: FAH-T 420,
FAH‑T 420 KKW
A2S / A2R / A1 / A1R / BS / BR, in line with EN 54‑5
(programmable)
– Thermal differential part: FAP‑DOTC420,
FAP‑DOT420, FAP‑OTC420, FAP‑OT420
A2S / A2R / BS / BR, in line with EN 54‑5 (programmable)
– Gas sensor In ppm range
F.01U.317.514 Bosch Sicherheitssysteme GmbH
2015.10 | version 1.0 | 1

Bosch FAH-T 420 Specifications

General

Brand	Bosch
Model	FAH-T 420
Category	Security Sensors
Language	English

Summary

Automatic Fire Detectors FAP-/FAH-420 Series

Intended Use

Describes the purpose and application scope of the fire detectors, including single-sensor and multi-sensor versions.

Technical Data

Details operating voltage, current consumption, alarm output, indicator output, dimensions, housing, weight, and response sensitivity.

Rules and Conditions

Covers installation, operation, storage, permissible operating temperatures, maximum installation height, and relative humidity.

Troubleshooting

Provides guidance on diagnosing and resolving issues by using the panel controller's diagnostic menu and error codes.

Restrictions of Usage

Outlines limitations and recommendations for installation, device manipulation, and usage, including handling damaged units.

Contact Information

Lists contact details for the manufacturer and importer, including addresses, phone numbers, and email addresses.

Product Label

Details the information found on the device's product label, such as material number and country of origin.

Manufacturing Date

Explains how to determine the manufacturing year, month, and day from the 10-digit serial number.