Modifications of Sampling Tubes | System Sensor DH100ACDCLP guide

3.From inside the duct, couple the other sections of the sampling tube to the section already installed using the 1/2″ conduit fittings supplied. Make sure that the holes on both of the air inlet tubes are lined up and facing into the air flow.

4.Trim the end of the tube protruding through the duct so that 1 to 2″ of the tube extend outside the duct. Plug this end with the end cap and tape closed any holes in the protruding section of the tube. Be sure to seal the duct when the tube protrudes.

NOTE: An alternate method to using the ST-10 is to use two ST-5 inlet tubes. Remove the flange from one of the tubes and install as described above. After the installation, use electrical tape to close off some of the sampling holes so that there are a total of 10 to 12 holes spaced as evenly as possible across the width of the duct.

NOTE: Air currents inside the duct may cause excessive vibration, especially when the longer sampling tubes are used. In these cases a 3″ floor flange (available at most plumbing supply stores) may be used to fasten the sampling tube to the other side of the duct. When using the flange/connector mounting technique, drill a 1″ to 11⁄4″ hole where the flange will be used.

[5.4.3] Modifications of 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 a sampling tube that is longer than neces- sary to span the duct width.

Use a 0.193-inch diameter (#10) drill and add the appro- priate 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.

NOTE: This procedure should only be used as a temporary fix. It is not intended as a permanent substitute for ordering the correct length tubes.

[5.5] Install The Filters

To install the sampling tube filters, simply push the filters into the sampling and exhaust tube holes, as shown in Figure 6. If a metal sampling tube is used, install the filters over the tube ends.

Figure 6. Sampling tube filter installation:

CAUTION

Filters require periodic cleaning or replacement, depend- ing on the amount of dust and dirt accumulated. Visually inspect the filters at least quarterly; inspect them more often if the dust accumulation warrants it. See Section [6] for more information. Replacement filters can be ordered from System Sensor, 3825 Ohio Ave., St. Charles, IL 60174. (Exhaust tube/ intake tube filter P/N F36-09-11)

[5.6] Field Wiring

Installation Guidelines

All wiring must be installed in compliance with the National Electrical Code and the local codes having juris- diction. Proper wire gauges should be used. The conduc- tors used to connect smoke detectors to control panels and accessory devices should be color-coded to prevent wiring mistakes. Improper connections can prevent a system from responding properly in the event of a fire.

For signal wiring, (the wiring between interconnected detectors or from detectors to auxiliary devices), it is usually recommended that single conductor wire be no smaller than 18 gauge. The duct smoke detector terminals accommodate wire sizes up to 12 gauge.

Smoke detectors and alarm system control panels have specifications for allowable loop resistance. Consult the control panel manufacturer’s specifications for the total loop resistance allowed for the particular model control panel being used before wiring the detector loop.

Wiring Instructions

The DH100ACDCLP detectors are designed for easy wiring. The housing provides a terminal strip with clamping plates. Wiring connections are made by stripping about 3/8” of insulation from the end of the wire, sliding the bare end under the plate, and tightening the clamping plate screw.

[5.7] Perform Detector Check

1.Perform STANDBY AND TROUBLE TEST per Section [6.2.1].

2.Perform MAGNET TEST per Section [6.2.2.1]. The RTS451 test of Section [6.2.2.2] may substitute for this requirement.

3.Perform AIR FLOW TEST per Section [6.1.1].

4.Perform SMOKE RESPONSE TEST per Section [6.1.2].

5.Perform SENSITIVITY TEST per Section [6.2.3].

[5.8] Install The Cover

Install the cover using the six screws that are captured in the housing cover. Be certain filters are installed as speci- fied in Section [5.5]. Make sure that the cover fits into the base groove and that all gaskets are in their proper posi- tions. Tighten the six screws.

H0159-00

D200-14-00

I56-0084-08R

DH100ACDCLP specifications

The System Sensor DH100ACDCLP is a cutting-edge addressable heat detector renowned for its advanced features and reliability in fire safety systems. Designed to meet various application requirements, this device excels in environments prone to false alarms while ensuring efficient fire detection.

One of the DH100ACDCLP’s main features is its advanced thermal sensing technology. This device utilizes a combination of fixed temperature and rate-of-rise sensing methods, allowing it to accurately detect abnormal heat levels in its surroundings. The fixed temperature feature triggers an alarm when the ambient temperature exceeds a predetermined threshold. Meanwhile, the rate-of-rise detection monitors rapid temperature increases, making it ideal for applications like kitchens, attics, and mechanical rooms where combustibles may not be immediately visible.

The DH100ACDCLP also incorporates an innovative addressable technology. This allows the device to communicate directly with the fire alarm control panel, providing precise location information and reducing response times during emergencies. By having each detector uniquely identified, facility managers can easily pinpoint which unit has triggered an alarm, streamlining response and ensuring the right areas are addressed swiftly.

Another notable characteristic of the DH100ACDCLP is its robust design, capable of operating in a variety of challenging environments. The unit is built to withstand temperatures ranging from -40°F to 150°F (-40°C to 66°C), making it suitable for both indoor and outdoor installations. Its resilient construction ensures longevity and durability, which is crucial for maintaining reliable fire safety measures over time.

Moreover, the DH100ACDCLP is compliant with various safety and performance standards. It obtained listings from UL and other recognized certification bodies, ensuring it meets strict criteria for fire detection capabilities. This compliance reinforces its credibility and effectiveness in safeguarding lives and property.

In addition to its technical features, the DH100ACDCLP is designed for straightforward installation and maintenance. Its user-friendly interface allows both installers and end-users to navigate settings and conduct routine checks with ease, ensuring that the system remains functional and reliable.

In summary, the System Sensor DH100ACDCLP stands out as a sophisticated heat detector, combining innovative thermal sensing technologies with an addressable communication system. This ensures precise detection, rapid response, and adaptability to various environments, all while maintaining compliance with safety standards. It is an indispensable component of modern fire detection systems, providing peace of mind to property owners and facility managers alike.