System Sensor DH100ACDCP specifications Multiple fan shutdown interconnect, WireWiring to APA451

Figure 7. System wiring diagram for 4-wire duct smoke detectors:

CAUTION

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

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

2.0A @ 30 VDC resistive

2.0A @ 125 VAC resistive

+

ALARM

INITIATION

LOOP

–

	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
	14			3
TROUBLE CONTACTS CLOSED IN ALARM AND STANDBY.
CONTACTS OPEN WHILE DETECTOR PCB OR POWER IS
REMOVED OR WHEN TAMPER FEATURE TIMES OUT. OPEN
CONTACTS SIGNAL TROUBLE CONDITION TO PANEL.
		5
ALARM			CONTACTS SHOWN
INITIATION			OPEN IN STANDBY.
CONTACTS			CONTACTS CLOSE
			IN ALARM.
		4

	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
	14			3
TROUBLE CONTACTS CLOSED IN ALARM AND STANDBY.
CONTACTS OPEN WHILE DETECTOR PCB OR POWER IS
REMOVED OR WHEN TAMPER FEATURE TIMES OUT. OPEN
CONTACTS SIGNAL TROUBLE CONDITION TO PANEL.
		5
ALARM			CONTACTS SHOWN
INITIATION			OPEN IN STANDBY.
CONTACTS			CONTACTS CLOSE
			IN ALARM.
		4

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

UL LISTED 4-WIRE	FIRST DETECTOR IN THE LOOP	LAST DETECTOR IN THE LOOP	EOL RESISTOR
			SPECIFIED BY
CONTROL PANEL	DH100ACDCP	DH100ACDCP
			PANEL MANUFACTURER
			A78-2352-27

Figure 8. Wiring diagram for DH100ACDCP to APA451:

4-Wire Wiring to APA451

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Figure 10. Multiple fan shutdown (interconnect):

Figure 9. Wiring diagram for DH100ACDCP to RTS451KEY and interconnect feature:

DH100ACDCP		RTS451/RTS451KEY
Alarm Signal	15	1	(Red LED) Alarm
Aux. Power +	19		*
			For RTS451KEY
Sup. N. O.	14		*only without a
			control panel.
Sup. COM	3	6	(Green LED)
			Power
Aux. Power –	20	2
Reset	2	3
		4
Test	11	5

1	6	A B C
12	16
		DETECTOR 1
		SYSTEM
FAN		CONTROL
CONTROL		POWER OR
		THERMOSTAT

1	6	A B C
12	16
		DETECTOR 2
		SYSTEM
FAN		CONTROL
CONTROL		POWER OR
		THERMOSTAT

1	6	A B C
12	16
		DETECTOR 3
		SYSTEM
FAN		CONTROL
CONTROL		POWER OR
		THERMOSTAT

1

–

NEXT

DETECTOR

+

12

Important Interconnect Notes

•When using the interconnect feature, all in- terconnected units must be powered with the same, independent supply.

•Polarity must be maintained throughout the interconnect wiring. Connect terminal 12 on unit 1 to terminal 12 on unit 2 and so on. Similarly, connect terminal 1 on unit 1 to ter- minal 1 on unit 2 and so on.

D100-68-00 6 I56-1147-12R