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Installation and Maintenance Instructions for
H355, H355R, and H355HT Intelligent Plug-In Temperature Sensors
This sensor must be installed in compliance with the control panel system installation manual. The installation must
meet the requirements of the Authority Having Jurisdiction (AHJ). Sensors offer maximum performance when installed
in compliance with the National Fire Protection Association (NFPA); see NFPA 72.
Before installing sensors, please read the system wiring and installation manual thoroughly. This manual provides
detailed information on sensor spacing, placement, zoning, and special applications. Copies of these manuals are
available from Fire•Lite.
GENERAL DESCRIPTION
Models H355, H355R, and H355HT are intelligent sensors that utilize a state-of-the-art thermistor sensing circuit for fast
response. These sensors are designed to provide open area protection with 50 foot spacing capability. Model H355 is a
fixed temperature sensor with 135° F fixed temperature alarm. Model H355R is a rate-of-rise temperature sensor with
135° F fixed temperature alarm. Model H355HT is a high temperature sensor with 190° F fixed temperature alarm.
Two LEDs on each sensor light to provide a local, visible sensor indication. Remote LED annunciator capability is avail-
able as an optional accessory (Part No. RA400Z).
Models H355, H355R, and H355HT require compatible addressable communications to function properly.
Connect these sensors to listed-compatible control panels only.
SPECIFICATIONS
Diameter:
Height:
Weight:
Installation Temperature:
Operating Humidity Range:
Mounting:
Voltage Range:
Standby Current:
LED Current:
Fixed Temperature Rating:
Rate of Rise Detection:
F300-25-00
6.1 inches (155 mm) installed in B350LP
2.1 inches (51 mm)
4.8 ounces (137 gm)
–4°F to 100°F (–20°C to 38°C); H355 and H355R
–4°F to 150°F (–20°C to 66°C); H355HT
10% to 93% Relative Humidity Noncondensing
B350LP flanged base
15 to 32 Volts DC Peak
300 µA @ 24 VDC (one communication every 5 sec.with LED blink enabled)
6.5 mA @ 24 VDC
135°F (57°C); H355 and H355R
190°F (88°C); H355HT
Responds to greater than 15°F/min.; H355R
1
Fire•Lite, One Fire•Lite Place, Northford, CT 06472
I56-1972-00R
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Table of Contents
Summary of Contents for Fire-Lite H355
- Page 1 Installation and Maintenance Instructions for H355, H355R, and H355HT Intelligent Plug-In Temperature Sensors This sensor must be installed in compliance with the control panel system installation manual. The installation must meet the requirements of the Authority Having Jurisdiction (AHJ). Sensors offer maximum performance when installed in compliance with the National Fire Protection Association (NFPA);...
- Page 2 CAUTION: Do not loop wire under terminals 1 or 2. Break wire run to provide supervision of connections. Figure 1 WIRING GUIDE Breakaway Stop All wiring must be installed in compliance with the National Electrical Code, applicable local codes and the Authority Having Jurisdiction. Proper wire gauges should be used.
- Page 3 B. Direct Heat Method (Hair dryer of 1000 – 1500 watts) 1. From the side of the detector, direct the heat toward the sensor. Hold the heat source about 6 inches (15 cm) away to prevent damage to the cover during testing. 2.
- Page 4 Please refer to insert for the Limitations of Fire Alarm Systems FCC Statement This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
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