RT-3000 Series Duct Smoke Detectors - Installation and Maintenance Instructions

Sep 25, 2026

RT-3000 Series duct smoke detectors provide early warning of smoke and combustion products carried through HVAC ductwork in commercial, industrial, and residential applications. The units are designed to prevent smoke recirculation by controlling fan and blower operation and may shut down complete systems upon detection. Instructions cover product application and description, including mounting base support for specific ionization or photoelectric detector heads and supervised alarm/trouble contact functions with cover-removal and maintenance-mode testing guidance.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages8

Reading Time20 min

AccessFree to download

Product Overview

Product Application

Product Description

Installation and Maintenance Instructions

AIR PRODUCTS AND CONTROLS INC. 25 Corporate Drive • Auburn Hills, MI 48326 USA Telephone: (248) 332-3900 • [www.ap-c.com](www.ap-c.com) AVAILABLE ACCESSORIES FOR USE WITH RT-3000 SERIES DUCT SMOKE DETECTORS MSR-SERIES REMOTE ACCESSORIES in any available conﬁguration MSR-100 Series Features Visual Indicators:Alarm, Pilot,Trouble • Buzzer: Programmable for Alarm and Trouble Buzzer Silence:Visual Notiﬁcation and Ringback • Detector Test/Reset: Key Operated • LED/Buzzer Test: Push-Button Operate MSR-50RM Series Features Magnet Test, Pushbutton Reset,Visual Pilot, Trouble, Alarm LED MSR-50RK Series Feature Key Test & Reset withVisual Pilot, Trouble, Alarm LED MSR-AV Series: Add-on to MSR-100 and-50, features plug-in combination Strobe (Visual) and Sounder (Audible) MS- SERIES REMOTE ACCESSORIES MS-RA Remote Alarm MS-RA/R Remote Alarm, push button Test/Reset Switch MS-RA/P/R Remote Alarm, Pilot, push-button Test/Reset Switch MS-KA/R Remote Alarm, key-operated Test/Switch MS-KA/P/R Remote Alarm, Pilot, key-operated Test/Reset Switch MS-RA/P Remote Alarm, Pilot MS-RH Remote Alarm Horn MS-RH/KA/P/R Remote Alarm, Pilot, Horn, key-operated Test/Reset Switch MS-RH/P/A Remote Alarm, Pilot, Horn MS-RH/KA/P/A/T Remote Alarm, Trouble, Pilot, Horn, key-operated Test/Reset Switch MS-RA/P/T Remote Pilot, Trouble MS-RA/FT/P Remote Pilot, Trouble, push-button Test/Reset Switch MS-KA/P/R/T Remote Pilot, Trouble, key-operated Test/Reset Switch MS-RD Remote Alarm MS-F/T Remote Trouble SMOKE TEST GAS TG-2000 Solo Aerosol Test Gas with Nozzle for Test Port NOTCHED SAMPLING TUBES STN-1.0 For duct widths of 6" to 1.0' STN-2.5 For duct widths of 1.0' to 3.0'STN-5.0 For duct widths of 3.0' to 5.0' STN-10.0 For duct widths of 5.0' to 10.0'FAST TUBE Sectional Sampling tube for duct widths up to 8.0' REPLACEMENT SMOKE DETECTOR HEADS 55000-225APO S65A Ionization Detector Replacement Head 55000-328APO S65A Photoelectric Detector Replacement Head POWER SUPPLIES T-PB 202-1 24VAC @ 4.0A Class I Power Supply T-PB 202-0 24VAC @ 4.0A Class I Power Supply T-PB 303-1 24VAC @ 3.0A Class II Power Supply T-PB 303-0 24VAC @ 3.0A Class II Power Supply FOR TECHNICAL SUPPORT CALL TOLL FREE 888-332-2241 OR 248-332-3900 RT-3000 SERIES NEMA 4X TYPE 4X ENCLOSURE WATERTIGHT CORROSION RESISTANT DUCT SMOKE DETECTORS INSTALLATION AND MAINTENANCE INSTRUCTIONS RT-3000-N Ionization Type, 4-Wire Duct Smoke Detector RT-3000-P Photoelectric Type, 4-Wire Duct Smoke Detector NOTICE: The information contained in this document is the most current available at the time of shipment of accompanying product, and is subject to change without notice. Future references should always be made to the most current revision of this document. The information contained in all this document should be considered before installing or using the product. Any example applications shown are subject to the most current enforced local/national codes, standards, approvals, certiﬁcations, and/or the authority having jurisdiction. All of these resources, as well as the speciﬁc manufacturer of any shown or mentioned related equipment, should be consulted prior to any implementation. For further information or assistance concerning this product, contact Air Products and Controls Inc. Air Products and Controls Inc. reserves the right to change any and all documentation without notice. © Air Products and Controls Inc. 2009 A COPY OF THESE INSTRUCTIONS SHOULD BE LEFT WITH THE EQUIPMENT UNTIL INSTALLATION BY ALL TRADES IS FULLY COMPLETE. FOLLOWING FINAL INSPECTION, A COPY SHOULD BE LEFT WITH THE OWNER/USER. FOR TECHNICAL SUPPORT CALL TOLL FREE 888-332-2241 OR 248-332-3900 | | | | | | --- | --- | --- | --- | | | RT-3000-N
RT-3000-P | Ionization Type, 4-Wire DSD Photoelectric Type, 4-Wire DSD | | PRODUCT OVERVIEW PRODUCT APPLICATION RT-3000 Series duct smoke detectors provide early detection of smoke and products of combustion present i

FAQs

What is the purpose of RT-3000 Series duct smoke detectors in HVAC systems?

They detect smoke and combustion products in air moving through HVAC ducts and help prevent smoke recirculation by affecting air handling fan/blower operation. Systems may be shut down when smoke is detected.

Which detector heads are compatible with the RT-3000 Series mounting base?

The mounting base accepts an ionization smoke detector head model 55000-225 or a photoelectric smoke detector head model 55000-328.

How do trouble contacts and cover-removal behavior work?

Trouble contacts supervise input power presence, cover removal, and removal of the smoke detector head. A cover removal switch provides an immediate trouble condition when the lever is lifted outside Maintenance Mode, and maintenance switching can simulate pilot operation for testing.

Sep 25, 2026

Upload by 4398046744996