System Sensor DH100ACDC specifications Inlet tubes required for different duct Widths

Page 3

Figure 7. System wiring diagram for 4-wire duct smoke detectors (detectors powered from initiating circuit):

CAUTION

Do not loop wire under terminals when wiring detectors. Break wire runs to provide system supervision of connections.

housing to the duct.

CAUTION: Do not overtighten the screws.

Figure 3. Installation of foam gaskets over sampling tube bushings:

must be supported at the end opposite the duct detector.

2.

Slide the tube into the housing bushing that meets the

 

air flow first. Position the tube so that the arrows point

 

into the air flow.

3.

Secure the tube flange to the housing bushing with two

POWER INPUTS ACCEPT 24 VDC, 24 VAC 50-60 HZ, 120 VAC 50-60 HZ, OR 220/240 VAC 50-60 HZ. CONNECT POWER SOURCE TO APPROPRIATE TERMINALS OF EACH DETECTOR.

AUX. CONTACT RATINGS 10A @ 30 VDC RESISTIVE 10A @ 250 VAC 100mA MINIMUM @ 5 VDC NOT INTENDED FOR CONNECTION TO CONTROL PANELS.

TROUBLE CONTACT RATING 2.0 A @ 30 VDC resistive

+

ALARM

INITIATION

LOOP

—

UL LISTED 4-WIRE

CONTROL PANEL

 

AVAILABLE POWER INPUTS

 

9

10

A

B

C

 

24V

 

120

 

 

 

 

VAC

 

 

 

 

 

 

 

 

 

 

220/240

 

 

 

 

VAC

 

 

 

ALARM AUXILIARY CONTACTS

 

 

FOR FAN SHUTDOWN, ETC.

 

16

6

17

7

18

8

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.

SUPERVISORY TROUBLE CONTACTS

 

 

3

 

 

14

 

TROUBLE CONTACTS CLOSED IN ALARM AND STANDBY.

CONTACTS OPEN WHILE DETECTOR HEAD OR POWER IS

REMOVED OR WHEN TAMPER FEATURE TIMES OUT. OPEN

CONTACTS SIGNAL TROUBLE CONDITION TO PANEL.

 

 

4

 

 

 

ALARM

 

CONTACTS SHOWN

INITIATION

 

OPEN IN STANDBY.

CONTACTS

 

CONTACTS CLOSE

 

 

 

IN ALARM.

 

 

 

5

 

 

 

 

FIRST DETECTOR IN THE LOOP

 

 

DH100ACDC

 

 

 

 

AVAILABLE POWER INPUTS

 

9

10

A

B

C

 

24V

 

120

 

 

 

 

VAC

 

 

 

 

 

 

 

 

 

 

220/240

 

 

 

 

VAC

 

 

 

ALARM AUXILIARY CONTACTS

 

 

FOR FAN SHUTDOWN, ETC.

 

16

6

17

7

18

8

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.

SUPERVISORY TROUBLE CONTACTS

 

 

3

 

 

14

 

TROUBLE CONTACTS CLOSED IN ALARM AND STANDBY.

CONTACTS OPEN WHILE DETECTOR HEAD OR POWER IS

REMOVED OR WHEN TAMPER FEATURE TIMES OUT. OPEN

CONTACTS SIGNAL TROUBLE CONDITION TO PANEL.

 

 

4

 

 

 

ALARM

 

CONTACTS SHOWN

INITIATION

 

OPEN IN STANDBY.

CONTACTS

 

CONTACTS CLOSE

 

 

 

IN ALARM.

 

 

 

5

 

 

 

 

LAST DETECTOR IN THE LOOP

 

 

DH100ACDC

 

 

 

CONNECT POWER SOURCE TO APPROPRIATE TERMINALS OF EACH DETECTOR. SEE SPECIFICATIONS FOR ADDITIONAL POWER SUPPLY INFORMATION.

FOR WIRING OF AUXILIARY DEVICES, REFER TO MANUFACTURER’S INSTALLATION INSTRUCTIONS OR CONTACT MANUFACTURER.

NOTE: THE SUPERVISORY RELAY NOW PROVIDES A "FORM C" CONTACT FOR CUSTOMIZED APPLICATIONS. FOR STANDARD APPLICATIONS, ONLY THE "NO" CONTACT IS USED

EOL RESISTOR

SPECIFIED BY

PANEL MANUFACTURER

A78-2352-03

SCREW HOLES FOR

ATTACHING HOUSING

TO DUCT WORK.

A78-2045-00

[5.4] Sampling Tube Installation for Ducts Greater Than 11/2 Feet Wide

The sampling tube is identified by a series of air inlet holes on the tube. A telescoping tube is included for ducts up to 18″ in width. All other lengths must be purchased sepa- rately. Order the correct length, as specified in Table 1, for width of the duct where it will be installed. The exhaust tube is molded onto the base of the duct housing, and the A2440-00 Exhaust Tube Extension is available as an acces- sory in those cases where the molded exhaust port does not extend at least 2 inches into the duct.

The inlet tube is always installed with the air inlet holes facing into the air flow. To assist proper installation, the tube’s mounting flange is marked with arrows. Make sure the inlet tube is mounted so that the arrows point into the

#6 self-tapping screws.

4. For tubes longer than the width of the air duct, the tube

should extend out of the opposite side of the duct. If

there are more than 2 holes in the section of the tube ex-

tending out of the duct, select a different length using

Table 1. Otherwise, trim the end of the tube protruding

through the duct so that 1″ to 2″ of the tube extend out-

side the duct. Plug this end with the end plug and tape

closed any holes in the protruding section of the tube. Be

sure to seal the duct where the tube protrudes.

Figure 4. Air duct detector inlet sampling tube:

AIR HOLES

INLET

FLANGE

 

TUBE

 

END

 

PLUG

ARROWS

AIR FLOW DIRECTION

MUST FACE

 

INTO AIR FLOW

A78-2047-00

Figure 5. Tube mounting configurations with varying air flow direction:

DOTS INDICATE POSITION OF

SAMPLING TUBE HOLES

Figure 8. Wiring diagram for DH100ACDC to APA451:

Figure 9. Wiring diagram for DH100ACDC to RTS451KEY and interconnect feature:

air flow (see Figure 4). Figure 5 shows the various combi- nations of tube mounting configurations with respect to air flow. Mounting the detector housing in a vertical orienta- tion is acceptable, provided that the air flows directly into

AIR FLOW

AIR FLOW

DIRECTION

DIRECTION

 

DUCT

DUCT

DETECTOR

DETECTOR

HOUSING

HOUSING

 

DH100ACDC

 

 

APA451

Alarm Signal

15

2

Alarm

Aux. Power +

19

 

 

Sup. N. O.

14

3

Power

Sup. COM

3

 

 

Aux. Power –

20

1

Common

NOTE: Wiring diagram shown is for DH100ACDC 4-wire duct smoke detector system equipped without a control panel.

DH100ACDC

 

Alarm Signal

15

Aux. Power +

19

Sup. N. O.

14

Sup. COM

3

Aux. Power –

20

Reset

2

Test

11

Interconnect +

12

Interconnect –

1

DH100ACDC

 

Unit Two

12

 

 

1

RTS451KEY

1 (Red LED) Alarm

6 (Green LED) Power

2 Common

3Reset

4Common

5Test

NOTE: Wiring diagram shown is for DH100ACDC 4-wire duct smoke detector system equipped without a control panel.

IMPORTANT!

ALL INTERCONNECTED

UNITS MUST BE POWERED

BY THE SAME,

INDEPENDENT POWER

SUPPLY.

the sampling tube holes as indicated in Figure 4.

Table 1. Inlet tubes required for different duct

widths:

 

Outside Duct Width

Inlet Tube Required

1 to 2 ft.

ST-1.5

2 to 4 ft.

ST-3

4 to 8 ft.

ST-5

8 to 12 ft.

ST-10

[5.4.1] Installation For Ducts Greater Than 11/2 Feet But Less Than 8 Feet Wide

1.If the tube is longer than the width of the air duct, drill a 3/4″ hole in the duct opposite the hole already cut for the inlet tube. Make sure the hole is 1″ to 2″ below the inlet

hole on the opposite side of the duct to allow moisture drainage away from the detector. 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. Sampling tubes over 3 ft. long

 

A.

 

B.

INLET

EXHAUST

EXHAUST

INLET

TUBE

TUBE

TUBE

TUBE

EXHAUST

INLET

AIR FLOW

DIRECTION

TUBE

TUBE

 

 

DUCT

 

 

DUCT

 

 

DETECTOR

DETECTOR

 

 

 

 

HOUSING

HOUSING

 

 

 

 

 

 

C.

 

D.

AIR FLOW

EXHAUST

INLET

DIRECTION

TUBE

TUBE

NOTE: Orientations C and D apply only to metal sampling tubes.

WARNING

In no case should more than 2 air inlet holes be cut off the tube. There must be a minimum of 10 holes in the tube ex- posed to the air stream.

[5.4.2] Installation For Ducts More Than 8 Feet Wide

NOTE: To install inlet tubes in ducts more than 8 feet wide,

D100-68-00

6

I56-1147-07

D100-68-00

3

I56-1147-07

Page 2 Page 4
Image 3
Page 2 Page 4
Contents This device will not operate without electrical power Electrical SpecificationsDetector Secure The Detector Housing To The Duct Tube Installation Chart Supplemental Duct Tube HolesContents Of The Duct Smoke Detector Kit Detector Cleaning ProceduresInstallation For Ducts More Than 8 Feet Wide Inlet tubes required for different duct WidthsOutside Duct Width Inlet Tube Required Install the inlet tube as follows

DH100ACDC specifications

The System Sensor DH100ACDC is a cutting-edge, dual-power smoke and heat detector designed for efficient smoke detection in both commercial and residential environments. This device stands out due to its advanced features and technologies, making it a preferred choice for fire protection professionals.

One of the primary features of the DH100ACDC is its dual-powered capability. The detector can operate using both alternating current (AC) and direct current (DC) power, ensuring that it maintains functionality even during power outages. This versatility makes it suitable for various applications, whether in homes, offices, warehouses, or industrial settings.

The DH100ACDC is equipped with an advanced photoelectric sensing technology that enhances its ability to detect smoke particles more effectively than traditional ionization detectors. This technology helps in reducing the occurrence of false alarms while providing reliable detection of smoldering fires, which are the most common type of fires in residential buildings. The photoelectric sensor can quickly identify minute smoke particles and trigger an alarm before a fire escalates.

Another notable characteristic of the DH100ACDC is its thermal detection capabilities. This device includes a built-in heat sensor that activates the alarm when temperatures exceed a preset threshold, making it especially useful in environments where excess heat may precede a fire. The combination of smoke and heat detection allows for a more comprehensive fire safety solution.

In terms of design, the DH100ACDC features a sleek, compact profile that can blend seamlessly into various environments. Its ergonomic design facilitates easy installation, and the device comes with a user-friendly interface for straightforward operation and maintenance.

Additionally, the DH100ACDC incorporates a robust communication system. The detector can easily integrate with existing fire alarm systems, enhancing overall fire safety management in any building. Its compatibility with various control panels adds to its versatility and appeal.

In summary, the System Sensor DH100ACDC is an advanced smoke and heat detector that boasts dual-power capabilities, photoelectric and thermal detection technologies, easy installation, and seamless integration with fire alarm systems. These features make it an excellent choice for individuals and organizations looking to bolster their fire safety measures.
Top Page Image Contents