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Connecting Multiple Units, Typical System Connections, System Sync Connections

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Applications Connecting Multiple Units 5.4 Connecting Multiple Units Two or more HPFF8 and/or HPFF12 units can be connected to each other to provide additional NAC extenders for a system; see wiring in Figures 5.5-5.10 and in the HPFF8 manual PN 53499. Maintain separation of power-limited and non-power limited wiring as discussed in Section 2.5, "Power-Limited Wiring Requirements". HPFFconnex-typ.psd NOTE: Multiple units should not be connected in a "daisy chain" fashion. DO NOT connect a NAC output of one unit to the initiating device signal input of the next unit. The synchronization signal will not pass unimpeded through multiple units with this wiring method. Figure 5.5 Typical System Connections HPFFconnex-SysSync.psd Figure 5.6 System Sync Connections NOTES for Figures 5.5-5.10: 1. The FACP's NAC output must be regulated (not Full Wave Rectified [FWR]) if the HPFF is programmed for Sync Generator. 2. The number of possible units that can be interconnected depends on the current capability of the FACP output. Each HPFF8 input draws 12.26 mA at 24 VDC. 3. The total line impedance for interconnected units cannot be such that it creates a voltage drop > 2 VDC. Zline total =2V/(1 Unit + 1 ELR) Example: Zline total = 2V/(12.26 mA + (24-2)/4.7K) =118.1 ohms 46 HPFF12 NAC Expander - P/N 53576:B 11/24/2010

Section	Page
Table of Contents	5
Section 1: System Overview	9
1.1 General	9
1.2 Features	10
1.3 Start-up Procedure	11
1.4 Jumpers	12
1.4.1 Charger Disable Jumper (J1)	12
1.4.2 Ground Fault Disable Jumper (J2)	12
1.5 LED Indicators	13
1.6 Specifications	13
Section 2: Installation	17
2.1 Backbox Mounting	17
2.2 Chassis-Mounting in FACP Cabinets	21
2.3 NAC Circuit Wiring	26
2.3.1 Four NACs Configured for Class B (Style Y)	26
2.3.2 Two NACs Configured for Class A (Style Z)	27
2.3.3 Mixing Class B and Class A NACs	28
2.3.4 HPP31076 Optional Class A (Style Z) Adaptor	29
2.4 Mounting Addressable Modules	30
2.4.1 Mounting Modules from Honeywell Fire Systems	30
2.4.2 Mounting Six-Circuit Modules from Honeywell Fire Systems	31
2.5 Power-Limited Wiring Requirements	31
2.5.1 Power-Limited Wiring, Standard Chassis	32
2.5.2 Power-Limited Wiring, FACP Cabinet	33
Section 3: Programming Options	35
3.1 DIP Switch Settings	35
3.2 Programmable Features	36
3.2.1 Input/Output Functions	36
3.2.2 Synchronization Type	37
3.2.3 Trouble Reporting Delay with an AC Failure	37
3.2.4 Split Alarm and Silencing	38
Section 4: Trouble Supervision	39
4.1 Supervised Functions and Field Wiring	39
4.2 Trouble Reporting	39
4.2.1 TB2: AC FAIL Contacts	40
4.2.2 TB2: TROUBLE Contacts	40
4.2.3 TB3: Initiating Device Inputs SIGNAL 1 and SIGNAL 2	40
4.2.4 Trouble Memory	41
4.2.5 Ground Fault Detection	41
4.2.6 NAC Overload Protection and Indication	41
Section 5: Applications	42
5.1 Controlling Four NAC Circuits from a Single Source	42
5.2 Controlling and Silencing Four NACs	43
5.3 Split Alarm and Selective Silence	44
5.3.1 Selective Silence	44
5.3.2 Split Alarm Mode	45
5.4 Connecting Multiple Units	46
Section 6: Power Supply Requirements	48
6.1 Overview	48
6.2 Calculating the AC Branch Circuit Current	48
6.3 Calculating the System Current Draw	49
6.3.1 Overview	49
6.3.2 How to Calculate System Current Draw	50
6.4 Calculating the Battery Size	51
6.4.1 NFPA Battery Requirements	51
6.4.2 Selecting and Locating Batteries	51
6.5 NAC Circuit Loop Wiring Requirements	52
Appendix A: Device Compatibility	53
A.1 Optional Modules	53
A.2 Notification Appliances	53
A.2.1 System Sensor — 24 VDC	53
A.2.2 Gentex — 24 VDC	54
A.2.3 Cooper-Wheelock	55
A.2.4 Amseco	57
A.2.5 Faraday	57

Match case Limit results 1 per page

HPFF12 NAC Expander —

P/N 53576:B

11/24/2010

Applications

Connecting Multiple Units

5.4

Connecting Multiple Units

Two or more HPFF8 and/or HPFF12 units can be connected to each other to provide additional NAC

extenders for a system; see wiring in Figures 5.5–5.10 and in the HPFF8 manual PN 53499.

Maintain separation of power-limited and non-power limited wiring as discussed in Section 2.5,

“Power-Limited Wiring Requirements”.

Figure 5.5

Typical System Connections

Figure 5.6

System Sync Connections

NOTES for Figures 5.5–5.10:

The FACP’s NAC output must be regulated (not Full Wave Rectified [FWR]) if the HPFF is programmed for

Sync Generator.

The number of possible units that can be interconnected depends on the current capability of the FACP

output.

Each HPFF8 input draws 12.26 mA at 24 VDC.

The total line impedance for interconnected units cannot be such that it creates a voltage drop > 2 VDC.

Zline total =2V/(1 Unit + 1 ELR)

Example:

Zline total = 2V/(12.26 mA + (24-2)/4.7K) =118.1 ohms

HPFFconnex-typ.psd

NOTE:

Multiple units should not be connected in a “daisy chain” fashion. DO NOT connect a

NAC output of one unit to the initiating device signal input of the next unit. The synchronization

signal will not pass unimpeded through multiple units with this wiring method.

HPFFconnex-SysSync.psd