System Sensor DH400ACDCP Installation And Maintenance Instructions Manual

Text of System Sensor DH400ACDCP User Guide:

• System Sensor DH400ACDCP, D400-13-00 1 I56-0555-010R DH400ACDCP Air Duct Smoke Detector INSTALLATION AND MAINTENANCE INSTRUCTIONS 3825 Ohio Avenue, St. Charles, Illinois 60174 1-800-SENSOR2, FAX: 630-377-6495 www.systemsenor.com Before Installing Please thoroughly read the System Sensor Guide for Proper Use of Smoke Detectors in Duct Applications (A05-1004), which provides detailed information on detector spacing, placement, zoning, wiring, and special applications. Copies of this manual are available online at www.systemsensor. com or via System Sensor’s toll free fax-back service, Docu- ments on Demand at 800/736-7672. NFPA Standard

• System Sensor DH400ACDCP, [3] Contents Of The Duct Detector Kit 1. Complete housing base and cover assembly 2. Two #10 sheet metal mounting screws 3. Two sampling tube filters 4. One test magnet 5. Drilling template 6. Two 5 /16˝ O-rings 7. Two rubber tube bushing seals 8. Four #6 self-tapping mounting screws for the sampling and optional exhaust tube extension 9. One filter adapter 10. One inlet tube end plug 11. Two #10 speed nuts NOTE: The inlet sampling tube must be ordered separately. It must be the correct length for the width of the duct where it will be installed. See Table 1 on page 4 to de

• System Sensor DH400ACDCP, [5.1] Verify Duct Air Flow Direction And Velocity Model DH400ACDCP detectors are designed to be used in air handling systems having air velocities of 500 to 4000 feet per minute. Be sure to check engineering specifications to ensure that the air velocity in the duct falls within these parameters. If necessary, use a velocity meter to check the air velocity in the duct. [5.2] Drill The Mounting Holes Remove the paper backing from the mounting template supplied. Affix the template to the duct at the desired mounting

• System Sensor DH400ACDCP, [5.4.2] Installation For Ducts More Than 8 Feet Wide NOTE: To install inlet tubes in ducts more than 8 feet wide, work must be performed inside the air duct. Sampling of air in ducts wider than 8 feet is accomplished by using the ST-10 inlet sampling tube. If the tube is shorter than the width of the air duct, install the end plug into the inlet tube as shown in Figure 4 and support the end opposite the duct detector. Install the inlet tube as follows: 1. Drill a 3 /4˝ hole in the duct directly opposite the hole already drilled for the inlet tube. 2. Slide the inlet tube with the flange into the centermost housing bushing. Position the tube

• System Sensor DH400ACDCP, [5.4.3] Modifications Of Inlet Sampling Tubes There may be applications where duct widths are not what is specified for the installation. In such cases, it is permis- sible to modify an inlet sampling tube that is longer than necessary to span the duct width. Use a 0.193˝ diameter (#11) drill and add the appropriate number of holes so that the total number of holes exposed to the air flow in the duct is 10 to 12. Space the additional holes as evenly as possible over the length of the tube. [5.5] Field Wiring Ins

• 24V 120 VAC 220/240 VAC 1 2 12 13 14 AVAILABLE POWER INPUTS ALARM AUXILIARY CONTACTS FOR FAN SHUTDOWN, ETC. 15 16 17 18 19 20 N.C.C.N.O.N.O.C.N.C. ALARM AUXILIARY CONTACTS SHOWN IN STANDBY. CONTACTS TRANSFER DURING ALARM AS INDICATED BY THE ARROWS. TROUBLE CONTACTS TROUBLE CONTACTS CLOSED IN ALARM AND STANDBY. CONTACTS OPEN WHILE DETECTOR HEAD OR POWER IS REMOVED, AND DU

• System Sensor DH400ACDCP, 24V 120 VAC 220/240 VAC 1 2 12 13 14 AVAILABLE POWER INPUTS ALARM AUXILIARY CONTACTS FOR FAN SHUTDOWN, ETC. 15 16 17 18 19 20 N.C.C.N.O.N.O.C.N.C. ALARM AUXILIARY CONTACTS SHOWN IN STANDBY. CONTACTS TRANSFER DURING ALARM AS INDICATED BY THE ARROWS. ALARM INITIATION CONTACTS TROUBLE CONTACTS CLOSED IN ALARM AND STANDBY. CONTACTS OPEN WHILE DETECTOR HEAD OR POWER IS REMOVED, AND DURING RESET. OPEN CONTACTS SIGNAL TROUBLE CONDITION TO PANEL. 9 8 5 (+) ALARM SIGNAL AUDIBLE PIEZO ALERT WITH ALARM AND POWER (TROUBLE) LEDS. FOR STAND ALONE APPLICATIONS ONLY. APA451 RECOMMENDED FOR COMPLIANCE TO NFPA 90A. LOCATE IN NORMALLY OCCUPIED AREA OF PREMISES. DH400ACDCP DUCT DETECTOR SEE SPECIFICATIONS

• System Sensor DH400ACDCP, [6.1] Smoke Entry Tests [6.1.1] Air Flow To verify sufficient sampling of ducted air, use a manometer to measure the differential pressure created from air flow across the sampling tubes. The pressure should measure no less than 0.01˝ of water and no greater than 1.20˝ of water. [6.1.2] Smoke Response To determine if smoke is capable of entering the sensing chamber, visually identify any obstructions. Plug the ex- haust and inlet tube holes to prevent ducted air from car- rying smoke away from the detector head, then bl

• System Sensor DH400ACDCP, To install the RTS451/RTS451KEY, connect the device as shown in Figure 8; wire runs must be limited to 25 ohms or less per interconnecting wire. Place the coil in the detector housing with the arrow facing up and pointing toward the detector as in Figure 12. Attach the coil leads to the hous- ing terminals as shown; polarity is not important. Firmly screw the bracket in place over the test coil. [6.2.3] Sensitivity Tests [6.2.3.1] MOD400R Sensitivity Test After verification of alarm capability, use the MOD400R test module with a voltmeter to check detector sensitivity a

• [7.2] Photo Heads 1. Remove the detector cover by inserting a small bladed screwdriver into the slot located 90 degrees from the field test port. Rotate the cover counterclockwise to re- move (see Figure 13). 2. Lift the screen from the photo chamber. Vacuum the screen and cover before using clean, compressed air to loosen and blow out any re

• System Sensor DH400ACDCP, D400-13-00 11 I56-0555-010R [8] Model DH400ACDCP Air Duct Smoke Detector Specifications Description HVAC air duct mounted ionization or photoelectronic smoke detector for separately powered systems or stand alone sys- tems. Auxiliary alarm relay contacts provide fan contactor shutdown to prevent HVAC circulation of smoke. Environmental Limits Temperature: 32°F to 120°F 0°C to 49°C Humidity: 10% to 93% R.H. non-condensing Air Velocity: 500 to 4000 Ft/min. 2.54 to 20.3 m/sec. Test Features Magnetic test switch, magnetic reset switch, MOD400R test module (optional), RTS451 Remote Test Station (optional).

• D400-13-00 12 I56-0555-010R Electrical Ratings Power Supply Voltage 20 - 29 VDC 24 VAC 50 - 60 Hz 120 VAC 50 - 60 Hz 220/240 VAC 50 - 60 Hz CURRENT REQUIREMENTS (USING NO ACCESSORIES) Max. standby current 25 mA 35 mA AC avg. 20 mA AC avg. 20 mA AC avg. Max. alarm current 95 mA 55 mA AC avg. 55 mA AC avg. 30 mA AC avg. CONTACT RATINGS Alarm initiation contacts (SPST) 2.0A @ 30 VAC/DC (0.6 po

• System Sensor DH400ACDCP, D400-13-00 16 I56-0555-010R ©2006 System Sensor DETECTOR TEST LOG Detector Identification Information Manufacturer and Serial Date Detector Model: ______________________ Number: ______________________ Installed: ___________________ Description of Detector Location: ________________________________________________________________________________________________ ________________________________________________________________________________________________ _____________________________________

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