Transcript
75-545.1 5H0816780000
March, 2015
INSTALLATION INSTRUCTIONS Duct Smoke Detector Direct and Indirect gas-fired duct furnace/make-up air units Model Series: “D”,”H”,”M”,”I”,”O”,&”Q” Commercial packaged ventilation system units Model: “MPR”
IMPORTANT
WARNING 1.
Disconnect power supply before making wiring connections to prevent electrical shock and equipment damage.
2.
All units must be wired strictly in accordance with wiring diagram furnished with the unit. Any wiring different from the wiring diagram could result in a hazard to persons and property.
3.
All wiring must be done with a wiring material having a remperature rating of at least 105°C.
The use of this manual is specifically intended for a qualified installation and service agency. All installation and service of these units must be performed by a qualified installation and service agency. Modine manuals may contain excerpts from component supplier literature adapted for Modine products. Any accompanying component supplier literature is for general information.
Figure 1.1 – Air Duct Smoke Detector
Application The SL-2000-P Photoelectric Duct Smoke Detector is designed to detect the presence of smoke in the air duct. Once the smoke is sensed, the smoke detector will deenergize the unit. To reset the unit, the manual reset button on the detector must be pressed and the alarm condition reset on the main unit controller.
WARNING 1.
2.
3.
Model Number:
Power:
SL-2000-P 4-wire Photoelectric Duct Smoke Detector 24 VAC
Standby Current:
55.0 mA
Alarm Current:
190.0 mA
Dimensions:
13½” L X 4½” W X 2¼” D
Max. Net Weight:
3½ lbs. Gray Plastic back box with clear plastic cover 100 to 4,000 ft/min 10% to 85% RH NonCondensing / Non- Freezing 32°Fto 140°F (0°C to 60°C) 2 Sets from “C” rated at 10A @ 115VAC resistive 1 form “A” Rated at 2A 1 Set from “C” rated at 10A @ 115VAC resistive
The National Fire Protection Association (NFPA) has established that duct detector must not be used as a substitute for open area detector protection as a means of providing life safety. Nor are they a substitute for early warning in a building’s regular fire detection system.
Model Description:
It is recommended that the user read NFPA Standards 90A, 72, and 101. The SL-2000-P Air Duct Smoke Detectors are listed per UL 268A. This device will not operate without electrical power. Fire situations may cause an interruption of power. The system safeguards should be discussed with your local fire protection specialist.
Material:
Contents
Table 1.1 – Specifications
Air Velocity: Humidity: Ambient Temp.:
One duct detector housing with cover One duct drilling template One 7” exhaust tube and one sampling tube (available in 3 sizes for duct widths up to 2.5’, 5.0’, or 10.0’) One red end cap One magnet for testing Two # 12 X ½” sheet metal screws
Alarm Contact Rating: Trouble Contact Rating:
THIS MANUAL IS THE PROPERTY OF THE OWNER. PLEASE BE SURE TO LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB.
INSTALLATION – Duct Smoke Detector Location of Smoke Detector
Sampling Tube Assembly
WARNING 1.
2.
For this detector to function properly, it MUST be installed according to the instruction in this manual. Furthermore, the detector MUST be protected from the elements and operated within ALL electrical and environmental specifications listed in this manual. Failure to comply with these requirements may prevent the detector from activating when smoke is present in the air duct. There must be a minimum of 10 holes in the tube exposed to the air stream.
This guideline contains general information on duct smoke detector installation, but does not preclude the NFPA and/or ICC documents listed. To determine the correct installation position for an SL-2000-P duct smoke detector, the following factors must be considered. 1.
A uniform non-turbulent (laminar) airflow between 100 fpm to 4,000 fpm must be present in the air duct.
2.
To minimize the impact of air turbulence and stratification on performance, air smoke detector should be located as far as possible downstream from any obstruction (i.e. deflector plates, elbows, dampers, etc.). In all situations, confirmation of velocity and pressure differential within specifications is required. The pressure differential between the input sampling (high pressure) tube and exhaust (low pressure) tube for the smoke detector should be greater than 0.01” W.C and less than 1.2” W.C.
3.
Identify a code compliant location (supply or return side, or both) for the installation of the smoke detectors that will permit easy access for viewing and serviceability.
4.
When installing on the return side, install duct units prior to the air being exhausted from the building or diluted with outside “fresh” air.
5.
2
1.
The SL-2000-P smoke detector does not require tools for installation and/or removal of sampling and exhaust tubes from the detector housing.
2.
Cut sampling tube to length, tube should span at least 80% the width of the duct. Sampling tubes over 3.0’ must be supported on opposite side.
3.
Install red cap in the end of sampling tube.
4.
Determine airflow direction. Refer to Figure 2.1.
5.
Insert inlet and exhaust tubes into detector, if cover is in place insert tubes in the back of the detector via the key-slots.
6.
Push the tube into place against the spring loaded retainer, turn tube into correct location allowing the key to “lock” the tube in the correct orientation.
7.
Secure inlet and exhaust tubes to the smoke detector unit.
Figure 2.1 – Location of Inlet and Exhaust Tube
Duct Smoke Detector Mounting
When installing smoke detectors downstream of filters, fires occurring in the filters will be detected, but if the filters become blocked, insufficient air flow through the duct unit will prevent the correct operation of the smoke detector. Smoke detectors installed in the supply air side may monitor upstream equipment and/or filters.
IMPORTANT Ensure air intake sampling tube is positioned so that the inlet holes are directly facing the airflow.
6.
Where possible, install smoke detectors upstream of air humidifiers and downstream of dehumidifiers.
1.
Remove paper backing from mounting template (packaged in installation kit).
7.
Do not expose to corrosive environments.
2.
Affix mounting template to desired location on duct.
8.
To prevent false alarms, the smoke detector should not be mounted in areas of extreme high or low temperatures, in areas where high humidity exists, or in areas where the duct may contain gases or excessive dust.
3.
Using the template as a guide, drill (2) mounting holes with a 2/32” drill, for the #12 X ½” screws.
4.
Use the template as a guide to drill or punch (2) 1¼” holes for Inlet and exhaust tubes.
5.
Clean all holes of metal “burrs”.
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INSTALLATION – Duct Smoke Detector 6.
7.
Hold the duct unit assembly into position (NOTE: Inlet and exhaust tubes should go through the 1¼” holes and face the air flow direction as shown in Figure 2.1).
Figure 3.2 – Typical Wiring Diagram for Model MPR Units
9 10
Disconnect power supply before making wiring connections to prevent electrical shock and equipment damage.
2.
All units must be wired strictly in accordance with wiring diagram furnished with the unit. Any wiring different from the wiring diagram could result in a hazard to persons and property.
2.
Connect terminals according to wiring diagram shipped with unit. For model series “D”,”H”,”I”,&”O” duct furnaces (non-factory supplied blower), refer to Figure 3.1 for typical wiring connections.
For model series “MPR”, refer to Figure 3.2 for typical wiring connections. For all other models, refer to the job specific unit wiring diagram provided with the unit.
For deviations to these wiring diagrams, consult the factory.
2
34
1
13
Y3
804
Y4 ID1
1.
This device will not operate without electrical power. Fire situations may cause an interruption of power. The system safeguards should be discussed with your local fire protection specialist.
2.
This device will not sense smoke unless the ventilation system is operating and the cover is installed.
3.
Before the test, notify the proper authorities that the smoke detection system will be temporarily out of service.
1.
Remove cover and depress cover removal switch (SW1) and the unit will be energized the green pilot LED (LED2) will be illuminated. Refer to Figure 4.1
2.
Pressing the test/reset button (SW2), the red alarm LED (LED1) will be illuminated. Refer to Figure 4.1
3.
Replace cover.
This test should be performed when the unit is running.
DETECTOR POWER
18
Y2
803
Air Flow Test
SMOKE DETECTOR
7
Y1
802
Initial testing of the duct detector is recommended according to NFPA 72. The following tests contained in this manual were devised to assist the installer in verification of proper detector operation.
Replace detector cover.
9
VG0
801
Basic Operation Check
10
500
WARNING
Figure 3.1 – Typical Wiring Diagram for Model Series “D”,”H”,”I”, &”O” Duct Furnaces
VG
500
Function Testing
Installation of wiring must conform with local building codes, or in the absence of local codes, of the National Electric Code ANSI/NFPA 70 - Latest Edition. Unit must be electrically grounded in conformance to this code. In Canada, wiring must comply with CSA C22.1, Part 1, Electrical Code. Remove detector cover.
503
PROGRAMMABLE ELECTRONIC CONTROLLER CAREL pCO3 LRG
All wiring must be done with a wiring material having a remperature rating of at least 105°C.
1.
BC5
500
J5
1.
SD2
503 503
18
WARNING
3.
602
7
J4
Secure the duct smoke unit to the HVAC duct sheet metal using (2) #12 X ½” sheet metal screws (packaged in installation kit).
Electrical Connections
3.
SMOKE DETECTOR RELAY
SMOKE DETECTOR
14
1.
Insert manometer tubes into Inlet and exhaust tube openings.
2.
Seal the manometer tube to prevent reading the atmospheric pressure.
3.
The pressure should be greater than 0.01” of water and less than 1.20” of water.
TO CUSTOMER FIRE ALARM CONTROL PANEL
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INSTALLATION – Duct Smoke Detector Figure 4.1 – LED and Switch Location
NORMAL OPERATION The green LED in the housing should flash to indicate that the unit is in standby mode. If the green LED is not flashing: The detector is lacking power, thus check wiring, panel, or power supply. The head is missing, thus replace the head. The unit is defective, thus replace the unit. If the cover is removed for longer than 20 minutes, a trouble signal is generated to indicate the missing cover. The trouble signal can be created intentionally, to verify the correct operation of the system, by removing the detector head to cause a trouble condition locally and at the system control panel.
SW1
LED1
LED2
Maintenance and Troubleshooting
SW2
Perform function test during installation and periodically thereafter. Please refer to the supplier literature for maintenance and troubleshooting instructions.
*Shown with and without cover.
Smoke Response 1.
Remove cover and hold down cover removal switch.
2.
Blow smoke from a cotton wick or puck directly at the head to cause an alarm.
3.
The alarm indicator LED should illuminate within one minute.
Alarm Test 1.
Place magnet provided in installation kit on top of the housing between the raised sections.
2.
Allow at least five seconds for alarm initiation.
3.
Remove magnet and reset detector by pressing test/reset button.
Modine Manufacturing Company has a continuous product improvement program, and therefore reserves the right to change design and specifications without notice. Building HVAC Modine Manufacturing Company 1500 DeKoven Avenue Racine, Wisconsin, USA 53403-2552 Phone: 1.800.828.4328 (HEAT) www.modinehvac.com © Modine Manufacturing Company 2015
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