wheelock ZNH, ZNS-MCCH, ZNS-MCC, ZNS-MCW, ZRS-MCC INSTALLATION INSTRUCTIONS

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Long Branch, N.J. 07740
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www.cooperwheelock.com	INSTALLATION INSTRUCTIONS
	SERIES Z 2-WIRE FIELD SELECTABLE HORN,
	STROBE, AND HORN/STROBE APPLIANCES
	(WALL AND CEILING MOUNT )

Use this product according to this instruction manual. Please keep this instruction manual for future reference.

GENERAL:

The Cooper Wheelock Series Z horn, strobe, and horn/strobe appliances are designed for easy installation. The ZNS horn/strobes and ZRS strobes are for 24V operation and the ZNH horn is for 12V or 24V operation. The appliance comes in two main parts. The universal mounting back plate allows the appliance to be mounted to a single-gang, double-gang, four square backbox, 4” octagon backbox, or a 3 ½” octagon backbox. Two wire appliance wiring is then connected to the mounting back plate. This allows a continuity check of the entire NAC circuit before any appliances are attached. It also allows the appliances to be installed after all finish work has been completed. The installer can snap or install the appliances when all other work is complete.

WARNING: PLEASE READ THESE INSTRUCTIONS CAREFULLY BEFORE USING THIS PRODUCT. FAILURE TO COMPLY WITH ANY OF THE FOLLOWING INSTRUCTIONS, CAUTIONS AND WARNINGS COULD RESULT IN IMPROPER APPLICATION, CANDELA SETTING, INSTALLATION AND/OR OPERATION OF THESE PRODUCTS IN AN EMERGENCY SITUATION, WHICH COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.

SPECIFICATIONS:

Table 1: Models and Settings

		Regulated	Voltage Range
			Limit per UL	Strobe		Current Draw
	Model	Voltage			Horn		Mounting
			1971	(cd)		See Table
		(VDC/VRMS)
			(VDC/VRMS)
	ZRS-MCW	24	16-33	15/30/75/110	-	3	Wall
	ZRS-MCWH	24	16-33	135/185	-	3	Wall
	ZRS-MCC	24	16-33	15/30/75/95	-	3	Ceiling
	ZRS-MCCH	24	16-33	115/177	-	3	Ceiling
	ZNS-MCW	24	16-33	15/30/75/110	X	4	Wall
	ZNS-MCWH	24	16-33	135/185	X	4	Wall
	ZNS-MCC	24	16-33	15/30/75/95	X	4	Ceiling
	ZNS-MCCH	24	16-33	115/177	X	4	Ceiling
	ZNH	12	8-17.5	-	X	5	Wall or
		24	16-33				Ceiling

Strobe and Horn Strobe Appliances

Cooper Wheelock’s Series Horn Appliances provide a selectable Continuous or Code 3 Horn tone when connected directly to the Fire Alarm Control Panel (FACP). They can also provide a synchronized Code 3 Horn tone when used in conjunction with an FACP that incorporates the Wheelock sync protocol, a Wheelock Sync Module, or the Wheelock Power Supply. The Horn Appliances can be field set for High (HI) or Low (LO) dBA sound output. The Horn Appliances are UL Listed under Standard 464 for Audible Signal Appliances. They are listed for indoor use only. These models are designed for use with either filtered DC (VDC) or unfiltered Full-Wave-Rectified (VRMS) input voltage. All inputs are polarized for compatibility with standard reverse polarity supervision of circuit wiring by a FACP. The ZNS Horn/Strobe is for 24V operation only. The ZNH Horn is for 12V or 24V operation.

NOTE: The ZRS, ZNS, and ZNH are electrically identical to the corresponding RSS, NS, and NH models. Therefore, they carry the existing UL compatibility listings.

NOTE: The Code 3 temporal pattern (1/2 second on, 1/2 second off, 1/2 second on, 1/2 second off, 1/2 second on, 1-1/2 off and repeat) is specified by ANSI and NFPA 72 for standard emergency evacuation signaling. The Code 3 Horn should be used only for fire evacuation signaling and not for any other purpose.

Table 2: ZNH and ZNS Horn Reverberant dBA per UL464

				ZNH at 12V		ZNS and ZNH at 24V
			8.0V	12V	17.5V	16.0V	24V	33.0V
	Continuous	High	78	83	86	83	87	90
	Horn	Low	72	76	80	77	81	83
	Code 3 Horn	High	75	79	82	79	82	86
		Low	67	72	74	72	76	79

Copyright 2007 Cooper Wheelock, Inc. All rights reserved.	P84860 E
	Sheet 1 of 4

CURRENT DRAW:

Table 3: ZRS Strobe Current Draw (Amps) at 16-33 Volts

							Strobe Setting (cd)
			MCW			MCWH				MCC			MCCH
	15	30		75	110	135	185	15	30		75	95	115	177
DC	0.060	0.092		0.165	0.220	0.300	0.420	0.065	0.105		0.189	0.249	0.300	0.420
FWR	0.102	0.155		0.253	0.347	0.455	0.645	0.110	0.170		0.280	0.375	0.455	0.645

Table 4: ZNS Horn/Strobe Current Draw (Amps) at 16-33 Volts

							Strobe Setting (cd)
	Horn		MCW			MCWH				MCC			MCCH
	Setting	15	30	75	110	135	185	15	30		75	95	115	177
DC	High*	0.074	0.107	0.184	0.244	0.350	0.477	0.082	0.124		0.209	0.275	0.350	0.477
	Low*	0.066	0.101	0.177	0.232	0.306	0.429	0.071	0.114		0.201	0.261	0.306	0.429
FWR	High*	0.133	0.189	0.285	0.383	0.491	0.681	0.141	0.204		0.312	0.411	0.491	0.681
	Low*	0.116	0.169	0.274	0.369	0.469	0.659	0.124	0.184		0.301	0.397	0.469	0.659

* Current Draw is the same for the Continuous Horn and Code 3 Horn Settings.

Table 5: ZNH Horn Current Draw (Amps)

		Horn	8-17.5 Volts	16-33 Volts
		Setting
	DC	High*	0.021	0.044
		Low*	0.012	0.018
	FWR	High*	0.054	0.075
		Low*	0.030	0.045

* Current Draw is the same for the Continuous Horn and Code 3 Horn Settings.

NOTE: Candela and Horn Setting will determine the current draw of the product.

When calculating the total currents use Tables 3-5 to determine the highest value of RMS current for an individual appliance, then multiply these values by the total number of appliances. Be sure to add the currents for any other appliances, including audible signaling appliances powered by the same source, and to include any required safety factors.

NOTE: The maximum number of strobes on a single notification appliance circuit shall not exceed 50.

NOTE: These notification appliances are UL Listed as “Regulated”. They are intended to be used with FACPs whose notification circuits are UL Listed as “Regulated.” These appliances shall not be used on UL Listed “Special Application” notification circuits unless the appliances are identified to be compatible in the installation instructions of the FACP or unless the FACP is identified to be compatible in this instruction manual.

NOTE: THESE APPLIANCES WERE TESTED TO THE REGULATED VOLTAGE LIMITS OF 16.0-33.0 VOLTS FOR 24V MODELS AND 8-17.5 VOLTS FOR 12V MODELS USING FILTERED DC OR UNFILTERED FULL-WAVE-RECTIFIED VOLTAGE. DO NOT APPLY VOLTAGE OUTSIDE OF THIS RANGE.

NOTE: CHECK THE MINIMUM AND MAXIMUM OUTPUT OF THE POWER SUPPLY AND STANDBY BATTERY AND SUBTRACT THE VOLTAGE DROP FROM THE CIRCUIT WIRING RESISTANCE TO DETERMINE THE APPPLIED VOLTAGE TO THE STROBES. THE MAXIMUM WIRE IMPEDANCE BETWEEN STROBES SHALL NOT EXCEED 35 OHMS.

NOTE: Strobes are not designed to be used on coded systems in which the applied voltage is cycled on and off.

NOTE: MAKE SURE THAT THE TOTAL RMS CURRENT REQUIRED BY ALL APPLIANCES THAT ARE CONNECTED TO THE SYSTEM’S PRIMARY AND SECONDARY POWER SOURCES, NOTIFICATION APPLICIANCE CIRCUITS, SM, DSM SYNC MODULES, OR COOPER WHEELOCK POWER SUPPLIES DOES NOT EXCEED THE POWER SOURCES’ RATED CAPACITY OR THE CURRENT RATINGS OF ANY FUSES ON THE CIRCUITS TO WHICH THESE APPLIANCES ARE WIRED. OVERLOADING POWER SOURCES OR EXCEEDING FUSE RATINGS COULD RESULT IN LOSS OF POWER AND FAILURE TO ALERT OCCUPANTS DURING AN EMERGENCY, WHICH COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.

WIRING AND MOUNTING BASE:

					• All strobe appliances have in-out wiring terminals that accepts
	FROM PRECEDING	{	}	TO NEXT APPLIANCE	two #12 to #18 American Wire Gauge (AWG) wires at each
					screw terminal. Strip leads 3/8 inches and connect to screw
	APPLIANCE, FACP OR			OR END OF LINE
	SYNC MODULE			RESISTOR (EOLR)	terminals.
		+ + -			• Break all in-out wire runs on supervised circuits to ensure
					integrity of circuit supervision as shown in Figure 2. The
					polarity shown in the wiring diagrams is for the operation of
		Figure 1:		Figure 2:	the appliances. The polarity is reversed by the FACP during
					supervision.

P84860 E

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