System Sensor i3 Series Thermal Detectors Manual

I AND MAINTENANCE INSTRUCTIONS Smoke Detector Ohio Avenue, St. Charles, Illinois 60174 FAX: 630-377-6495 peak to peak of applied voltage average (Form C Relay), 2WTA-B (Sounder) (Form C Relay), 4WTA-B (Sounder) (Form C Relay, Sounder), 4WITAR-B (Isolated Thermal, Form C Relay, Sounder) for 2WTR-B and 4WTR-B) SPECIFICATIONS Voltage Min.: Max.: Ripple Voltage: Standby Current: Standby Current: Alarm Current 4WTA-B, 4WTR-B: 4WTAR-B, 4WITAR-B: 2WTR-B: 2WTA-B: Contact Ratings: C Contact Ratings: Signal (temp-3 tone): Annunciator Output: Relay: Time (min): Start-up Capacitance: Initial Start-up Time: Start-up Time: Direct Power (Non-reverse Polarity): 130 mA limited by panel. Polarity Power: 30 mA for the 2WTA-B in alarm; 12 mA for all other 2WTA-B units on the loop. Add 25 mA for the RRS-MOD reversing relay alarm current. Assumes the panel alarm verification reset time is 10 seconds or less. Should the alarm verification reset exceed 10 seconds, use the maximum initial start-up time. min. in alarm or supply polarity reversed (Sounder units only) maximum panel must limit current @ 30 V AC/DC @ 30 V AC/DC SPECIFICATIONS Sensor: Trouble: Temperature Range: Humidity Range: Temperature Range: (including base): (including base): (57.2 (5 to 100 (0 to 37.8 to 95% RH non-condensing to 158 ( to 70 inches inches oz. INSTALLING read thoroughly System Sensor Applications Guide for System Smoke (SPAG91), which provides detailed information on detector spacing, zoning, wiring, and special applications. This is available online System Sensor web site: www.systemsensor.com. This manual shall be left with the owner/user of this equipment. This detector must be tested and maintained regularly follow- National Fire Protection Association (NFPA) 72 National Fire Alarm Code At a minimum, cleaning should be performed annually. DESCRIPTION 2WTR-B and 2WTA-B are 2-wire photoelectric smoke detectors; models 4WTA-B, 4WTAR-B, and 4WITAR-B are 4-wire photoelectric smoke All models incorporate a state-of-the-art optical sensing chamber an advanced microprocessor. The microprocessor allows the detector to adjust its sensitivity back to the factory setting when it becomes sensitive due to contaminants settling in its chamber. In order for this to work properly, the chamber must never be opened while power is to the smoke detector. This includes cleaning, maintenance or screen All models also feature a restorable, built-in, fixed temperature thermal detector and are also capable of sensing a freeze condition if temperature is below 41 2WTA-B, 4WTA-B, 4WTAR-B, and 4WITAR-B contain a piezoelectric which generates the ANSI S3.41 temporal pattern in an alarm condition. detectors on a zone will sound when the power supply to them is reversed. RRS-MOD can be used for the power supply reversal function. The RRS- also enables all the detectors sounders on a zone to be synchronized allows the zone to be silenced from the panel by entering the alarm si- key at the keypad. detector that initiated the alarm condition will have its red LED and Form relays (if applicable) latched until reset by panel. model 4WITAR-B photoelectronic smoke sensor is isolated from the fixed- heat sensor, providing a self-resetting, local audible smoke alarm does not alarm at the panel. Only the fixed-temperature heat sensor will the 4WITAR-B to initiate an alarm at the panel and the relay to change state. In order for all i3 sounder detectors on a loop to sound when the panel the supply voltage polarity must be reversed. A r