System Sensor B224BI Plug-in Isolator Detector Base INSTALLATION AND MAINTENANCE INSTRUC

I Ohio Avenue, St. Charles, Illinois 60174 Fax: 630.377.6495 in (17.4 cm) in (4.1 cm) to applicable sensor Operating Temperature Range using the Base/Sensor Cross Reference Chart at systemsensor.com to 93% Relative Humidity (Non-condensing) 2. MOUNTINg BASE TO ELECTRICAL BOx: AND MAINTENANCE INSTRUCTIONS Plug-in Isolator Base Diameter: Height: Temperature Range: Humidity Range: Ratings Voltage: Current: Current: to 32 VDC Maximum Maximum INSTALLINg read the System Smoke Detector Applications Guide, which provides information on detector spacing, placement, zoning, wiring, and spe- applications. Copies of this application guide are available from System NFPA 72 guidelines should be observed. This manual should be left with the owner/user of this equipment. The detectors used with these bases must be tested and main- following NFPA 72 requirements. The detectors used with these bases be cleaned at least once a year. INfORMATION isolator base is intended for use in an intelligent system. Isolator bases an entire communications loop from being disabled when a short cir- occurs. They accomplish this by isolating that part of the loop containing short from the remainder of the circuit. These bases also automatically the entire loop when the cause of the short circuit is corrected. In up to 25 addressable devices may be isolated between isolator bases. TERMINALS fUNCTION Positive (+) Comm. Line In Negative ( Comm. Line In and Out Positive (+) Comm. Line Out 1: TERMINAL DESIgNATION: SUPPLIED) SUPPLIED) gUIDELINES wiring must be installed in compliance with all applicable local codes and special requirements of the local authority having jurisdiction, using the wire sizes. The conductors used to connect smoke detectors to control and accessory devices should be color-coded to reduce the likelihood wiring errors. Improper connections can prevent a system from responding in the event of a fire. signal wiring (the wiring between interconnected detectors), it is recom- that the wire be no smaller than 18 AWG (0.823 square mm). How- wire sizes up to 12 AWG (3.31 square mm) can be used with the base. system control panels have specifications for allowable loop resistance. the control panel specifications for the total loop resistance allowed wiring the detector loops. the zone wiring of all bases in the system before installing detectors. includes checking the wiring for continuity, correct polarity, ground fault and performing a dielectric test. 3: – COMM OUT (+) – COMM OUT ( A OPTIONAL WIRING the mounting plate directly to an electrical box. The plate will mount to 4-inch square (with and without plaster ring), 4-inch octagon, 1/2-inch octagon, single gang and double gang junction boxes. Connect field wiring to terminals, as shown in Figure 3 and 4. Attach the mounting plate to the junction box as shown in Figure 2. To mount the base, hook the tab on the base to the groove on the mounting plate. Then, swing the base into position to engage the pins on the product with terminals on the mounting plate. Secure the base by tightening the mounting screws. Install a compatible smoke detector as described in the installation manual the detector. – COMM IN (+) – COMM IN ( 4. WIRINg DIAgRAM: 1 LINE 2 (+) ( (+) ( PANEL OF ADDRESSABLE DEVICES ARE BY FAULT ISOLATOR BASES. ANY OF COMPATIBLE LISTED DEVICES BE MIXED WITHIN A GROUP ( (+) ( (+) PAIR OF FAULT ISOLATOR BASES WILL A GROUP OF DEVICES IF A CIRCUIT OCCURS