GE EST Fire & Life Safety Security Conventional Initiating Devices Overview Standard Features 660A-CU Housing • Sensitive to visible and invisible products of combustion The 6260A-CU Duct Detector/Sensor Housing assembly is designed Finely tuned to sense all fi re types, especially slow burning, for mounting in an air duct to detect the presence of smoke in the smoldering fi res fuelled by combustibles typically found in mod- airstream of duct work sections of the HVAC air handling systems ern multi-use buildings. typically used in commercial buildings. • All fi eld wiring to base terminals Wiring to base is same as that for area smoke detection Each housing is packaged with detailed installation instructions, gaskets, a 6 inch (150 mm) exhaust tube, and a self-adhesive drilling • Suitable for high air velocity applications template for locating and mounting the detector. The large access Up to 4000 ft./min. (22.8 m/sec) with photoelectric head door is completely removable to allow fast detector head installa- • Suitable for ducts up to 10 ft. (3.O5 m) wide tion and fi eld wiring connections. All fi eld wiring is terminated at the detector’s plug-in base (ordered separately). The housing is constructed of durable 16 gauge steel fi nished in red baked enamel. Five one-gang knockouts on the housing provide convenient locations for mounting an alarm LED or test station (ordered separately). These accessories are mounted on one-gang faceplates and can also be remote mounted. The 6260A-CU Duct Smoke Detector Housing is designed for use with the EC30DU-3 photoelectric smoke detector and two optional bases. EC30DU-3 Duct Smoke Detector Sensitive to visible and invisible products of combustion, the EC30DU-3 is fi nely tuned to sense all fi re types, especially slow burning, smoldering fi res fuelled by combustibles typically found in modern multi-use buildings. The detector features a stable, reliable design that uses advanced light scattering principles for smoke detection. It is not affected by air velocities typical of air handling systems. The EC30DU-3 is non-polarized, which simplifi es fi eld wiring. Duct Smoke Detector and Housing EC30DU-3 Detector and 6260A-CU Housing * * MEA * * Pending Data Sheet 85001-0575 Issue 3 Not to be used for installation purposes. Page 1 of 4 Air Velocity Test Kit Application Airmeter Whiteplasticball The 6263-EC Air Velocity Supplygrille probe The 6260A-CU Duct Smoke Detector Housing requires a flat, accessible Chemically Nylonbristles Test Kit is used during treated toclean 14in(36mm)x area on the duct of at least 7-3/8 inch (188 mm) W x 7 inch (175 mm) H. pipe calibration installation and main- 3/16in(5mm)x stem orifice 5/16in(8mm) cleaners The duct housing must be installed on ducts at least 8 inches (200 mm) rubbertubing tenance of duct smoke wide. To avoid the effects of stratification, install the detector housing a Angle detectors. The kit, which connector minimum of six duct widths beyond any bends in the duct. Duct detec- contains an air veloc- tors are usually installed on the supply duct after the air filters, or in the ity meter with acces- return air stream prior to being diluted by outside air. Airvelocitycalculator sories, psychrometer, Returngrilleprobe and test fixture, is used Duct detectors continually sample air flow in a HVAC duct and initiate to measure air velocity an alarm or supervisory event whenever smoke is detected. An alarm and humidity to ensure Testfixture or supervisory event is activated when the quantity (percent obscura- compliance with detec- tion) of combustion products in that air sample exceeds the detector’s tor specifications. Psychrometer sensitivity setting. Air velocity in the duct maintains the air flow that enters the detector Duct Detector Air Sampling Tubes housing through perforations in the air sampling inlet tube and dis- One air sampling inlet tube must be ordered for each duct smoke charges through the outlet exhaust tube. The detector housing must be detector housing. The inlet tube can be easily cut to any length installed with its inlet air sampling tube upstream of the exhaust tube. and must span the entire width of the air duct. Tubes longer than Before installing the duct detector housing, test the duct air velocity to 36 inches (900 mm) must be supported at both ends. Tubes are verify that it is within the limits of the Duct Smoke Detector that is being available from 8 inches (200 mm) to 120 inches (3.05 m). Refer to installed. Also verify that the duct air relative humidity is within 0 to 85% Ordering Information for available lengths. RH. Application with Detector Relay Bases The number of smoke detectors installed on any single two-wire Detector Bases non-addressable circuit is limited by the control panel. However, Detectors attach to the base with a simple plug-and twist action, when the duct detector assembly includes relay bases to control allowing quick and easy removal for cleaning and servicing. Bases more than one function (eg. elevator capture, fan shutdown) only feature robust wiring terminals with captive clamping washers to one smoke detector is permitted per circuit and all other initiat- ensure secure wiring termination. Terminals are provided inside the ing devices, such as heat detectors, manual stations, waterflow molding for the connection of remote LEDs, when required. Detec- switches, etc., must be connected to other initiating circuits. If the duct tor bases accept #18 AWG (0.75mm²), #16 (1.0mm²), #14 AWG detector assembly includes a relay base and other relay bases (1.5mm²) and #12 AWG (2.5mm²) wire sizes. reside on that circuit, activating any duct detector test switch will operate all the relay bases on the circuit. The CSBU-1 standard base provides simple plug-and- twist installation for all EC series detectors. Removal of the detector does not require the disconnection of Accessories wiring. The EC-LED Alarm Indicator can be installed remotely or directly onto the 6260A-CU housing. The unit has The CSBU-3 resistor base limits alarm current on terminals for making field connections to the duct certain compatible control panels that do not include detector mounting base and features a red LED on a current limited initiating devices circuits. It is also used one-gang plastic plate. One EC-LED may be operated with FireShield panels when mixing detectors and and by each detector. contact type devices (i.e.: 280 series heat detectors) on circuits programmed for smoke detector verification. The C-DTS Alarm Indicator/Test Station can be installed remotely or directly onto the 6260A-CU hous- The CRB4U-1 relay base provides voltage-free relay ing. They are key-operated, supplied with two keys, contacts (Normally Open, Normally Closed, and Com- mon) for applications that switch according to the and feature a red LED and keyswitch on a one-gang stainless steel plate. Wire leads are provided for mak- state of the line voltage measured across (+) IN/OUT ing field connections to the duct detector mounting and (-) IN. The circuit monitors the line voltage and base. Turning the key to test puts the zone that the switches the relay contacts as soon as the line voltage detector is connected to in alarm. The fire alarm con- goes into alarm state. Once the line voltage goes back to normal state, the relay switches the contacts back trol panel will also enter alarm state. When the key is turned to the RESET/TEST position, the LED illuminates to their original positions. and all relay bases on the same circuit activate. The C- Relay contacts rated: DTS may also be used as selective reset. If a detector 30Vdc @ 1.25 A alarms, turning the key to RESET/TEST and then back 50Vdc @ 0.5 A to the ON position will reset the detector, assuming the 50Vac @ 0.5 A smoke condition has cleared. If the fire alarm control panel is in alarm, the panel must be reset first. The key cannot be removed when in the RESET/TEST position. Data Sheet 85001-0575 Issue 3 Not to be used for installation purposes. Page  of 4 8 8 8 8 7 7 7 7 6 6 6 6 5 5 5 5 Wiring Installation and Mounting Duct Detectors must always be installed in accordance with the lat- CSBU-1Standarddetectorbase est recognized editions of local and national fire alarm codes. IN(+) OUT(+) Terminal Description Fromcontrolpanel Tonextdevice 1 Not used Frontcover 2 OUT (-) 3 IN (-) AdapterPlate 4 Not used EC-LED 5 IN/OUT (+) Base 6 Not used From control 7 Not used panel 8 LED (-) _ IN( ) Sensor Male-femalestandoff _ OUT( ) Tonextdevice Duct CSBU-3Resistorbase housing IN(+) OUT(+) Terminal Description Fromcontrolpanel Tonextdevice 1 Not used Smokechambergasket 2 OUT (-) Smoke 3 IN (-) chamber 4 Not used EC-LED 5 Not used Neoprene gasket 6 IN/OUT (+) From attached Airsampling control 7 Not used panel tohousing tube 8 LED (-) connector _ IN( ) Redexhaust tube connector Airinletsampling tube(orientwith Exhausttube airholesfacing (supplied) airflow) orientwith _ slantdirected OUT( ) awayfrom Tonextdevice airflow Rubberstopper mustbeinstalled CRB4U-1Detectorrelaybase intoendof samplingtube IN(+) OUT(+) Terminal Description Fromcontrolpanel Tonextdevice 1 Relay Normally Open NormallyClosed 2 OUT (-) Contact EC-LED 3 IN (-) AIRFLOW AIRDUCT AIRFLOW 4 Relay Normally Closed Relay 5 IN/OUT (+) Common 6 Not used From control 7 Relay Common panel 8 LED (-) _ IN( ) One of four conduit 1/2” or 3/4” 5” (127 mm) combination knockouts NormallyOpen Knockout Locations Contact _ OUT( ) Tonextdevice 7” (178 mm) C-DTSTestStation 7-3/8” IN(+) OUT(+) (187mm) Fromcontrolpanel Tonextdevice NormallyClosed Green ground wire Contact Relay Common Black From C-DTS control Yellow panel Test WARNING: Duct detectors have specific limitations. Duct detectors are not a replace- Station White _ IN( ) ment for a building’s regular fire detection system. They are not a substitute for an open area smoke detector or for early warning detection. Smoke detectors are not Terminal Description designed to detect toxic gases which can build up to hazardous levels in some fires. 1 Relay Normally Open NormallyOpen These devices will not operate without electrical power. As fires frequently cause Contact 2 OUT (-) power interruptions, you should discuss further safeguards with your local fire 3 IN (-)/C-DTS (White) protection specialist. 4 Relay Normally Closed _ OUT( ) 5 IN/OUT (+)/C-DTS (Black) Tonextdevice 6 Not used 7 Relay Common 8 LED (-)/C-DTS (Yellow) Data Sheet 85001-0575 Issue 3 Not to be used for installation purposes. Page 3 of 4 4 4 4 4 3 3 3 3 2 2 2 2 1 1 1 1 GE Security U.S. Specifications T 888-378-2329 F 866-503-3996 EC30DU-3 Duct Smoke Detector Operating Voltage Range 14 - 30 Vdc Canada T 519 376 2430 Normal Operating Current 62µA F 519 376 7258 Alarm Current 100 mA (max.) limited by control panel Sensitivity Range 1.38 - 3.08% obs/ft Asia T 852 2907 8108 Operating Environment F 852 2142 5063 Temperature 32° F to 100° F (0° C to 38° C) Humidity 20 - 95% RH (non condensing) Australia Air Velocity 0 - 5,000 ft/min (manufacturer rated), 0 - 300 ft/min (UL listed) T 61 3 9259 4700 F 61 3 9259 4799 660A-CU Housing Europe Air Velocity Range 300 to 4,000 ft/min (1.5 to 20 m/s) T 32 2 725 11 20 Dimensions 7-3/8 inch W x 7 inch H x 5 inch D (188 mm x 178 mm x 127 mm) F 32 2 721 86 13 Material 16 Gauge Cold Rolled Steel Latin America Finish Red - Baked Enamel T 305 593 4301 Conduit Knockouts Combination 1/2 inch and 3/4 inch on top, bottom, and sides F 305 593 4300 Agency Listings UL, ULC www.gesecurity.com/est NOTE: The 6260A-CU Duct Smoke Detector Housing is not weatherproof or dust tight. © 2006 General Electric Company All Rights Reserved Ordering Information Catalog Number Description Ship Wt., lb. (kg) Duct Smoke Housing 6260A-CU Duct Smoke Detector Housing 6.5 (3.0) 6261-001 Air sampling Tube Inlet 8 inch (200mm) 0.25 (0.1) 6261-002 Air sampling Tube Inlet 24 inch (600mm) 0.5 (0.2) 6261-003 Air Sampling Tube Inlet 42 inch (1060mm) 1.6 (0.75) 6261-006 Air Sampling Tube Inlet 78 inch (1980mm) 2.2 (1.0) 6261-010 Air Sampling Tube Inlet 120 inch (3048mm) 4.4 (2.0) Duct Smoke Head and Bases EC30DU-3 Photoelectric Duct Smoke Detector 1.3 (0.6) CRB4U-1 Detector Relay Base 0.25 (0.1) CSBU-1 Detector Standard Base 0.25 (0.1) CSBU-3 Detector Resistor Base 0.25 (0.1) Accessories 6263-EC Air Velocity Test Kit EC-LED Fire Alarm LED Indicator 0.25 (0.1) C-DTS Fire Alarm LED/Test Station 0.25 (0.1) Data Sheet 85001-0575 Issue 3 Not to be used for installation purposes. Page 4 of 4