D343. Installation Instructions. Air Duct Smoke Housing

Transcription

1 D E Installation Instructions Air Duct Smoke Housing

2 D Installation Instructions.0 Overview. Trademarks ational Fire Alarm Code is a trademark of the ational Fire Protection Association, Inc. ife Safety Code is a trademark of the ational Fire Protection Association, Inc..0 Overview The D Mux Air Duct Smoke Detector Housing is designed to mount on the ducts of heating, ventilating, and air-conditioning (HVAC) systems for monitoring the presence of smoke in the conditioned air. The D is used with the D00DH Mux Photoelectric Smoke Detector (provided separately). This detector uses an efficient housing design to sample the air passing through a duct to detect a potentially hazardous condition. When smoke is detected, an alarm signal is sent to the control panel initiating the necessary action to shut off fans and blowers or change to other air handling systems. The D operates on the multiplex (mux) bus and a VDC or VAC external supply. One alarm Form A relay is for the control panel interface. Two auxiliary Form C relay contacts are for other functions such as fan shut down. Test the system by placing an external magnet on the D, or switching a signal from a remote test station. You can reset the system by pushing the eset button on the control panel and momentarily removing power on the external supply. Install the D according to: FPA 90A, Standard for the Installation of Air Conditioning and Ventilating Systems FPA, ational Fire Alarm Code FPA 0, ife Safety Code Any applicable local and state codes The local authority having jurisdiction (AHJ).0 Description The D is a four-wire, mux detector housing that requires VDC or VAC external power and detector head. Table lists the options available for the D. Table : Options D00DH Mux Photoelectric Smoke Detector Head D-. / ft (. cm) sample tube D- ft (9. cm) sample tube D- ft (. m) sample tube D-T emote Test (D0) D- emote ED Indicator (D0) D-TF Tube filters for sample and exhaust tubes (0 in each package) SMK-TM Test Magnet DA- emote Alarm Indicator D End-of-ine (EO) Module Bosch Security Systems, Inc. 9/0 99G

3 . Table lists the D s power requirements Table : Specifications Operating Voltage Condition Minimum mux bus voltage VDC (peak); VAC/ VDC external power Current Draw Bus Power External Power 0 ma Standby Trouble < 0 µa 0 µa Alarm Alarm Output Trouble Indication Auxiliary Output Operating Temperature Humidity Air Velocity Weight Dimensions (H x W x D) Power-up Time Control Panel ma Form A normally open contacts (O) 0. A at VDC/VAC, 0. A at 0 VAC Fire trouble at the control panel Two Form C ormally Open/ormally Closed contacts(o/c) 0 A at VDC/ VAC or 0 VAC/0 VAC + F to +0 F (0 C to +9 C). For U isted equirements, the operating temperature is F to 00 F (0 C to. C) 0% to 9% H 00 ft/min to 000 ft/min (. m/s to 0. m/s). lbs (. kg) / in. x / in. x / in. (. cm x 9. cm x cm) sec maximum Use the D with the D0 Series Control Panel with a multiplex expansion module installed. The D0 requires OM version.0 or greater. D Installation Instructions.0 Assembly.0 Assembly The D includes: One housing, power card, and cover assembly Two #0- x in. machine screws for mounting Two #0- jack nuts One exhaust tube Two tube clamps with four screws Two foam gaskets Two air filters One drilling template One cover gasket One head and / ft (. cm) sample tube.0 Sample Tubes Sample tubes should extend across the duct width. The sample tube sizes are: D-.: / ft (. cm) D-: ft (9. cm) D-: ft (. m) Sample tubes include an end plug that must be installed in the narrow end (refer to Figure ). Figure : DS9-. Sample Tube - Set screw - End plug You can combine or cut sample tubes to make different lengths. A sample tube can be a maximum length of 0 ft (.0 m) and a minimum length of ft (0. cm). For example, you can combine a ft (9. cm) and a ft (. m) to make an ft (. m) sample tube. To combine sample tubes:. emove the roll pin and set screw from one of the sample tubes.. emove the end cap from the other sample tube.. Push the flared end over the sample tube you want to lengthen.. Align the holes, insert the set screw, and reinstall the end plug. If you want a ft (. m) sample tube, combine a ft (9. cm) and a ft (. m) sample tube. Then cut ft (0. cm) from the narrow end to get the necessary length. Bosch Security Systems, Inc. 9/0 99G

4 . D Installation Instructions.0 Mounting Sample tubes must have at least twelve holes within the duct. Do not cut a sample tube so there are less than twelve holes. If more than twelve holes are exposed within the duct, cover these extra holes with duct tape. Use even spacing when covering the holes for an even air sample across the duct. Support sample tubes longer than ft (9. cm) at the end opposite the duct detector. Ensure the hole is in. to in. (. cm to cm) beneath the entry hole for possible moisture drainage (refer to Figure ). Seal the gap between the duct and sample tube. Figure : Support Hole Position.0 Mounting. Duct Preparation. ocation Verify the duct air flow and velocity. The D is designed for use in air handling systems with air velocities between 00 ft/min and 000 ft/min (. m/s and 0. m/s). Check the HVAC engineering specifications to ensure the air velocity in the duct is within these parameters. If necessary, use a velocity meter to check the air velocity in the duct. To get a representative air sample, avoid stratification and dead air space. These conditions can be caused by return duct openings, sharp turns, connections, or long, uninterrupted runs. Place the detectors between six times and ten times the width of the duct from any uninterrupted run. Figure shows the typical D placement. - in. to in. (. cm to cm) Figure : Typical Duct Detector Placement You can remove up to in. ( cm) from the D-. sample tube for ft (0. cm) duct installations. For example: If you use the D-. Sample Tube (refer to Figure ) in installations where the duct width is between in. (0. cm) and in. (. cm), cover some of the holes. There are nineteen holes in the D-., but only twelve are needed for normal installations. Figure : D-. Sample Tube - Place duct tape over these holes - Bend or other obstruction - Six to ten times the width of the duct - eturn air inlet - Duct width Bosch Security Systems, Inc. 9/0 99G

5 .. Housing Position You can mount the D in any direction at 90 increments regardless of the air flow direction (refer to Figure ). D Installation Instructions.0. ocate the D template (refer to Figure ) and remove it from its backing. Figure : D Mounting Template Mounting Figure : Mounting Increments. in. (. cm).0 in. (0. cm) / in. (9. mm) / in. (. mm) - Two / in. diameter holes for duct mounting - Two ¾ in. diameter holes for sample tubes - abel Duct Smoke Detector Mounting Template emovable After Drilling. Place the template over the desired location on the duct (refer to Figure ). Figure : Template Placement.0 in. (0. cm). in. (. cm) / in. (. mm) / in. (9. mm) - Duct - D template. Drill the required holes and remove any remaining debris. emove the template after the drilling is complete.. Place a #0- jack nut (refer to Figure ) in each / in. (9. mm) hole. Figure : Jack uts - Air flow - Correct mounting orientation - Incorrect mounting orientation. Insert the #0- in. x in. machine screws into the jack nuts and firmly tighten the screws. This fastens the jack nuts to the duct. You might need to hold the jack nuts with a wrench or pliers while tightening the screws to stop the jack nut from spinning in the hole. emove the screws for later use. Bosch Security Systems, Inc. 9/0 99G

6 D Installation Instructions.0 Mounting.. Place the two foam gaskets over the sample port and exhaust port on the back of the D (refer to Figure 9).. ocate both the exhaust and sample tubes. Ensure the sample tube has a plug installed at the end of the assembly (refer to Figure ). Figure 9: Gasket Placement Figure : Exhaust Tube and Sample Tube - Gaskets - D. Mount the D to the jack nuts in the duct using the #0- x in. screws provided (refer to Figure 0). Figure 0: D to Duct Mounting - Exhaust tube - eave end open - Sample tube - Insert plug 9. Observe the direction of the airflow in the duct. The holes in the sample tube must face into the air flow (refer to Figure ). Figure : Duct Airflow - Machine Screws (#0- in. x in.) Over-tightening the screws causes excessive bowing of the duct. - Air flow - Holes - Sample tube 0. Ensure the exhaust tube is always downwind from the sample tube (refer to Figure ). Figure : Exhaust Tube Position Figure shows the location of the wiring knockout holes on the D. Figure : Wiring Knockout Holes - Air flow - Sample tube - Exhaust tube. Insert the sample and exhaust tubes into the D with the sample tube holes facing into the air flow.. Seat the alignment pins on the tubes into the D. - Wiring Knockouts - Earth ground Bosch Security Systems, Inc. 9/0 99G

7 .. Secure the tubes using the tube clamps provided (refer to Figure ). Figure : Sample and Exhaust Tubes in Housing D Installation Instructions.0.0 Jumper Selection Jumper Selection. Jumper ocations Figure shows the power card with the tamper jumper and reset jumper locations. Figure : Jumper ocations - Tube clamps - Exhaust tube - Sample tube - D. Place the tube filters over the open ends of the sample and exhaust tubes (refer to Figure ). B B E K D Tamper eset O Y G E B U Figure : Tube Filters - Tamper jumper - eset jumper. Tamper Jumper The tamper jumper enables or disables the D cover tamper switch (refer to Figure ). When enabled, a trouble condition indicates the cover is removed. Figure : Tamper Jumper - Tube filters - Tube clamps - Exhaust tube - Sample tube - D FPA- requires a semiannual visual inspection of the D. Clean or replace the tube filters at this time. If replacement filters are needed, order the D-TF (supplied in 0-filter packs). - Disabled - Enabled. eset Jumper The reset jumper enables or disables the remote keyswitch reset (refer to Figure 9). The power off reset operates normally regardless of the jumper setting. Disable the keyswitch because the head is not a latching detector. Figure 9: eset Jumper Disable the reset jumper for all configurations. Bosch Security Systems, Inc. 9/0 99G

8 D Installation Instructions.0 Wiring..0 Wiring. Terminals Figure shows the terminal wiring.. D09 Multiplex Driver Module oop Wiring the D09 Multiplex Driver Module oop must be less than 0 Ω. Table shows the maximum wiring distances for Class A and Class B wiring relating to the wire size. Figure : Terminal Wiring When using D09 V.0 or earlier, the wiring is reduced to 0Ω. (+) (-) (+) (-) Table : Class A and Class B Maximum Wiring Distances Wire Size versus Maximum Distance Wire Gauge Distance AWG (mm) Maximum 0 Ω # AWG (. mm) 00 ft (0 m) # AWG (. mm) 90 ft (0 m) # AWG (. mm) 90 ft (0 m) # AWG (. mm) 90 ft (0 m) Measure loop resistance by shorting the end of the farthest device in Class B, or shorting the return wires in Class A. Then read the total resistance of all wires associated with the loop. Ensure the loop is disconnected from the D09 Module. efer to Figure 0. Figure 0: Class A and B oop esistance Measurement - Alarm contacts - Alarm relay aux contacts - Ext pwr ( VAC/VDC) - atch - not used - Mux bus - Alarm condition. Primary Power The D is designed for the mux bus and a VAC or VDC external power supply (refer to Figure ). Figure : Primary Power VAC or VDC - (+) Mux bus - (-) Mux bus When using an external power supply, do not reference minus or common side of the supply to earth ground. - Class B oop - 0 Ω (maximum) - Mux Bus - Clip lead - Class A oop Bosch Security Systems, Inc. 9/0 99G

9 .. D-T (D0) emote Test or Indicator FPA- requires the detectors to have remote alarm indicators where induct smoke detectors are installed in concealed locations more than 0 ft ( m) above the finished floor. emote alarm indicators are also required in arrangements where the detector s alarm indicator is not visible to responding personnel. Table shows the maximum number of DPs that can be wired on the mux bus. Table : Maximum number of DPs on the MUX BUS DPs on the Muxtiplex Bus: Maximum umber With the D-T emote Test Module 0 With the D- emote ED Module 0 Detector only 0 The maximum distance between the remote test station or the remote ED and the DP is 00 ft ( m). Use a U isted VDC power supply when operating the remote test station with the D0 not the D0 s auxiliary power. Figure shows the D to the D0 wiring. Figure : D to D0 Wiring 9 + I + OUT O BU BK ED YE G 0 D Installation Instructions.0. D- (D0) emote Indicator Do not exceed a distance of 00 ft ( m) between the D- (D0) emote Indicator and the D. Use wire that is # AWG (. mm) or larger. Figure shows the D to D0 wiring. Figure : D to D0 Wiring - D Power Card - D0 emote Indicator - Yellow wire - Violet wire - Black wire - Green wire - ed wire. DA- emote Alarm Indicator Do not exceed a distance of 00 ft ( m) between the DA- emote Alarm Indicator and the D. Use wire that is # AWG (. mm) or larger. Figure shows the D to DA- wiring. Figure : D to DA- Wiring Wiring Voltage in (+) - Voltage out (+) - emote test (Orn) - Voltage monitor (Blu) - Ground (-) (Blk) - ed ED (ed) - Yellow ED (Yel) - Green ED (Grn) 9 - D 0 - D0 AAM emote plate is in alarm when all EDs are on. - D Power Card - DA- emote Alarm Indicator - White wire - ed wire Bosch Security Systems, Inc. 9/0 99G 9

10 D Installation Instructions.0 Wiring.. D to Control Panel Figure shows the D to control panel wiring. Figure : D to Control Panel Wiring Single D for Fan Control If you want the fan control to latch, connect a jumper wire from Terminal to Terminal 9, and connect a jumper wire from Terminal to Terminal. If using smoke power from the control panel, you can reset it from the control panel by pressing the eset button. If using listed external supply, wire a relay to the smoke power and press the eset button on the control panel, or power down (refer to Figure ). Figure : Single D for Fan Control B B E K D O Y E G B U Class B - Control panel - MUX bus - External power - Class A - D. Multiple Ds to Control Panel Figure shows multiple Ds to control panel wiring. Tamper Disable eset Disable Figure : Multiple Ds to Control Panel Wiring HEAT COO O OFF B B E K D O Y E G B U Tamper eset B B E K D O Y E G B U Tamper eset - Power Card - Fan control - System control and thermostat B B O Y G B E E K D U B B O Y G B E E K D U Tamper eset Tamper eset Class B - Control panel - Mux bus - External power - Class A 0 Bosch Security Systems, Inc. 9/0 99G

11 K D U B B E K D O Y E G B U Tamper eset K D U B B E K D O Tamper Disable Y E G B U Disable eset..0 VDC External Supply Supervision The EO00 blue wires are C when power is present. When power is off, the EO00s are O (refer to Figure 9). Figure 9: VDC External Supply Supervision Input B B O Y G B E E Tamper eset B B O Y G B E E Tamper eset D Installation Instructions.0 Testing. emove the alarmed detector from its housing and recheck the housing for proper wiring.. If the problems continue, replace the affected detector with a known good one. This determines if the problem is caused by the detector or the housing.. When the system is free of alarms, check each detector to ensure the red ED indicator flashes approximately every seconds for the D00DH. This verifies the detector is receiving power and operating properly.. Test the detector by placing an external test magnet (SMK-TM) against the Ds test point notch located on the front cover (refer to Figure 0). Blue Blue - BK + Yel Figure 0: Detector Testing Input Blue Blue - BK + Yel - Class B - Control panel - Mux bus - External power.0 Testing - Mux point - EO00 or D - Class A Verify air flow to ensure the system is operating properly. Use a manometer to verify the correct velocity pressure readings exist for a range between 00 ft/min and 000 ft/min (. m/sec and 0. m/sec). The water pressure differential between sampling tubes must be at least 0.0 in. (0. mm) and at most. in. (. mm).. For proper polarity and continuity, check the wiring from the control panel to the last detector on each run.. Apply power to the system and check for alarms.. Observe which detector is in alarm (if any) and shut down the system. - SMK-TM - Test point notch. Perform a test at the control panel. efer to the D00DH Installation Instructions (P/: 9) for the detector head. 9. For duct detectors with the D-T installed, move the keyswitch to the appropriate position and observe the alarm ED. 9.0 Maintenance otify all concerned parties before and after completing fire alarm system maintenance or testing. FPA- requires a semiannual visual inspection of the duct smoke detectors. Clean or replace the tube filters at this time. If replacements are needed, order the D-TF (supplied in 0-filter packs). Clean the detector and base at least once a year using a vacuum or clean and dry compressed air. Bosch Security Systems, Inc. 9/0 99G

12 Bosch Security Systems, Inc. 0 Perinton Parkway Fairport, Y Customer Service: (00) Technical Support: () Bosch Security Systems, Inc. 99G