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24V

120 VAC

220/240

VAC

AVAILABLE POWER INPUTS

ALARM AUXILIARY CONTACTS

FOR FAN SHUTDOWN, ETC.

N.C.

N.O.

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 DURING RESET. OPEN CONTACTS

SIGNAL TROUBLE CONDITION TO PANEL.

24V

120 VAC

220/240

VAC

AVAILABLE POWER INPUTS

ALARM AUXILIARY CONTACTS

FOR FAN SHUTDOWN, ETC.

N.C.

N.O.

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 DURING RESET. OPEN CONTACT

SIGNAL TROUBLE CONDITION TO PANEL

ALARM INITIATION CONTACTS

CONTACTS SHOWN OPEN IN STANDBY. CONTACTS CLOSE IN ALARM.

ALARM INITIATION CONTACTS

CONTACTS SHOWN OPEN IN STANDBY. CONTACTS CLOSE IN ALARM.

ALARM INITIATION LOOP

UL LISTED CONTROL PANEL

FIRST DETECTOR IN THE LOOP DH400ACDCIHT

LAST DETECTOR IN THE LOOP DH400ACDCIHT

EOL RESISTOR SPECIFIED BY PANEL MANUFACTURER

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.

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 500mA MINIMUM @ 24 VDC NOT INTENDED FOR CONNECTION TO CONTROL PANELS.

TROUBLE CONTACT RATING 0.3 A @ 32 VAC/DC

CAUTION

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

Figure 7. System wiring diagram for duct detectors using a UL listed control panel (see Figure 8 for wiring
of optional accessories):

H0240-00

D400-64-00 6 I56-991-08R

Содержание DH400ACDCIHT

Страница 1: ...Fig 11 Detector Head Removal 9 Fig 12 RTS451 RTS451KEY Test Coil Installation 10 Fig 13 Ion Head Exploded View 10 1 General Description An HVAC system supplies conditioned air to virtually every area of a building Smoke introduced into this air duct sys tem will be distributed to the entire building Smoke detec tors designed for use in air duct systems are used to sense the presence of smoke in th...

Страница 2: ...4 7 Perform detector check 5 4 8 Install the cover 8 4 1 Verify Duct Air Flow Direction And Velocity Model DH400ACDCIHT 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 ...

Страница 3: ...o 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 4 4 1 Installation For Ducts Less Than 8 Feet Wide 1 If the tube is longer than the width of the air duct drill a 3 4 inch hole in the duct directly opposite the hole already cut for the inle...

Страница 4: ...TION FLANGE H0108 02 AIR FLOW DIRECTION DETECTOR HOUSING DOTS INDICATE POSITION OF SAMPLING TUBE HOLES AIR FLOW DIRECTION DETECTOR HOUSING SAMPLING TUBE EXHAUST TUBE AIR FLOW DIRECTION EXHAUST TUBE SAMPLING TUBE SAMPLING TUBE EXHAUST TUBE DETECTOR HOUSING AIR FLOW DIRECTION DETECTOR HOUSING A B C D HORIZONTAL MOUNTING OF HOUSING VERTICAL MOUNTING OF HOUSING Figure 5 Tube mounting configurations wi...

Страница 5: ...l strip with clamp ing plates Wiring connections are made by stripping about 3 8 inch of insulation from the end of the wire sliding the bare end under the plate and tightening the clamping plate screw The detector may be wired for interconnection to UL listed control panels or for stand alone service per NFPA 90A Refer to the wiring diagrams of Figures 6 7 and 8 to select the appropriate circuit ...

Страница 6: ... IN STANDBY CONTACTS CLOSE IN ALARM 8 9 ALARM INITIATION CONTACTS CONTACTS SHOWN OPEN IN STANDBY CONTACTS CLOSE IN ALARM ALARM INITIATION LOOP UL LISTED CONTROL PANEL FIRST DETECTOR IN THE LOOP DH400ACDCIHT LAST DETECTOR IN THE LOOP DH400ACDCIHT EOL RESISTOR SPECIFIED BY PANEL MANUFACTURER CONNECT POWER SOURCE TO APPROPRIATE TERMINALS OF EACH DETECTOR SEE SPECIFICATIONS FOR ADDITIONAL POWER SUPPLY...

Страница 7: ...S REFER TO MANUFACTURER S INSTALLATION INSTRUCTIONS OR CONTACT MANUFACTURER TROUBLE CONTACT RATING 0 3A 32 VAC DC 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 ALARM AUXILIARY CONTACT RATINGS 10A 30 VDC RESISTIVE 10A 250 VAC 500mA MINIMUM 24 VDC NOT INTENDED FOR CONNECTION TO CONTROL PANELS ALARM I...

Страница 8: ...ke behavior even when they are up to 90 clogged Quarterly visual inspec tion is usually often enough to determine if filters should be replace because only a high percentage of contamina tion affects duct detector performance Figure 9 Wiring diagrams for optional accessories see Figure 7 for APA451 wiring diagram ALARM SIGNAL AUX POWER 5 6 DUCT DETECTOR DH400ACDC PA400 OPTIONAL AUDIBLE ALERT ALARM...

Страница 9: ...head removal TEST LOCATOR TEST MAGNET PAINTED SIDE TOWARD HOUSING DUCT HOUSING DETECTOR HEAD RESET LOCATOR TWIST COUNTERCLOCKWISE TO REMOVE DUCT HOUSING TWIST CLOCKWISE TO INSTALL DETECTOR HEAD H0243 00 H0244 00 5 2 3 Sensitivity Tests 5 2 3 1 MOD400R Sensitivity Test After verification of alarm capability use the MOD400R test module with a voltmeter to check detector sensitivity as described in t...

Страница 10: ...H400ACDCIHT Air Duct Smoke Detector Specifications Description HVAC air duct mounted ionization smoke detector for separately powered systems or stand alone systems Auxiliary alarm relay contacts provide fan contactor shutdown to prevent HVAC circulation of smoke Environmental Limits Operating Temperature 32 to 158 F 0 to 70 C Storage Temperature 22 to 158 F 30 to 70 C Humidity 10 to 93 R H non co...

Страница 11: ...ements This enclosure provides protection in outdoor installations against rain sleet and snow or in indoor installations against dripping water NOTE The DH400 OE 1 is designed solely for the use with System Sensor model DH400ACDCIHT high temperature duct smoke detector Preparation Locate the two adhesive backed gaskets packaged with the enclosure NOTE In order to provide effective sealing these g...

Страница 12: ... repair or replace units which are found to be defective because of damage unrea sonable use modifications or alterations occurring after the date of manu facture In no case shall the Company be liable for any consequential or incidental damages for breach of this or any other Warranty expressed or implied whatsoever even if the loss or damage is caused by the Company s negligence or fault Some st...

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