System Sensor 2W-MOD2 Manual

I AND MAINTENANCE INSTRUCTIONS Test/Maintenance Module 2W-MOD2 Installing information is included as a quick reference installa- guide. Refer to the control panel installation manual detailed system information. If the modules will be in- in an existing operational system, inform the opera- and local authority that the system will be temporarily of service. Disconnect power to the control panel before the modules. This manual shall be left with the owner/user of equipment. Description 2W-MOD2 allows a control panel to receive a for signal from two i3 series smoke detec- model numbers 2W 2WT 2WTA and 2WTR module uses a form C zone relay to initiate of sen- and trouble a form A zone alarm relay and second form A zone relay to indicate loop fault (see Figure An EZ Walk Test puts all detectors on the loop into a Walk mode for easy verification of detector loop wiring. 1: relay (form C) relay (form A) trouble relay (form A) trouble trouble trouble and trouble and loop trouble and Maintenance/Freeze OFF Location 7 N.O. 8 Common 9 N.C. connected terminals and 11 connected between 10 and 12 2. Module front view: LED LED LED Walk-Test LED on the module provide a local visual indica- of the module status(es). maintenance module allows two-wire smoke detectors to used on any electrically compatible four-wire control panel. 3825 Ohio Avenue, St. Charles, Illinois 60174 FAX: 630-377-6495 If two i3 detectors are used in conjunction a style D initiating circuit, the 2W must be to provide that capability. Ground fault on a mod- two-wire loop can be indicated at a control panel if control panel is capable of ground fault detection on power supply to the module and meets NFPA 72 ground indication requirements for initiating device circuits. installer must verify that capability. 3. Module LED modes: COLOR LED 1 sec. ON 1 sec. OFF LED 1 sec. ON 1 sec. OFF on. Detectors loop do not have capability. on. One or more on loop have capability. not applied or not operating on loop in alarm. or more detectors of sensitivity or in Trouble. on loop not alarm, maintenance Freeze Trouble. LED 0.5 sec. ON 0.5 sec. OFF wiring fault. Walk Test mode. wiring normal. module has loop trouble restoration detection. If the trouble (open loop) doesn exist any more, the mod- will restore to standby condition with a maximum delay 1 minute. There is no delay in loop trouble detection. an alarm occurs while the module is indicating mainte- the alarm will supercede maintenance. the green LED remains ON (no blinking) three minutes af- applying power, it means that the module has determined no detector on its loop has communication capability. this condition, the detectors are still capable of initiating and loop trouble at the module. However, maintenance freeze trouble, will not be indicated at the module, and walk test will not be available. If i3 detectors are installed the loop, verify wiring and system operation. NFPA loop Style D wiring the EOL resistor is provided to the module. An external EOL resistor must be connected at the last detector on the loop (see Fig- 5 7). Requirements 2W-MOD2 is marked with a compatibility/zone identi- as the last digit of a 5 digit code on the back of the unit. ensure proper operation, this module shall be connected compatible two-wire smoke detectors or the alarm con-