Honeywell HPF902ULADA 9 Amp NAC Expander Installation and Operation Manual

Section 1: Introduction

The HPF902ULADA is a notification appliance circuit and auxiliary power expander that provides up to 9 amps of filtered, 24 volt power for powering notification appliances and auxiliary devices. The HPF902ULADA provides its own AC power connection, battery charging circuit, and battery connections. Used with security and fire alarm control panels, the HPF902ULADA enables you to connect and distribute power to many more devices than your panel may normally allow.

• Input Configurations: The HPF902ULADA has two optically isolated signaling inputs that provide the signal connection from the main control panel to the HPF902ULADA (see Section 3.2 for more details).
• Output Configurations: The HPF902ULADA has four power-limited notification appliance circuits that can be configured in various combinations of Class A and Class B circuits (see Section 3.3 for details).
• Auxiliary Power Configurations: The HPF902ULADA has a dedicated, power-limited, auxiliary output that can be configured in two different ways. The auxiliary output can either be non-resettable (always on), or configured to switch off during the AC power failure to conserve the battery standby power. When the auxiliary power is configured to switch off, there is a 30 second delay before the auxiliary power is turned off after the AC power fails (see Section 4.8.4 for details).
• Form C Trouble Relay: The HPF902ULADA includes a general trouble relay that will de-energize for any trouble situation. (see Section 4.4.1 for details).
• Earth Fault Detection: The HPF902ULADA monitors for earth faults to the system power or system ground. When detected, the system DE-energizes the trouble relay and the input supervision relays (see Section 5.2 for details).
• ANSI Temporal Code: The HPF902ULADA provides two configuration options that will drive outputs with the ANSI temporal code if the inputs are on constantly (see Section 4.8.1 for details).
• Supports Synchronized appliances: The HPF902ULADA provides configuration options that will eliminate the need for synchronized modules when using AMSECO, Faraday, Gentex, System Sensor, or Wheelock synchronization appliances.

Section 2: UL Requirements

When installed in accordance with NFPA 70 and NFPA 72 standards, the HPF902ULADA can be connected to UL Listed devices.

The HPF902ULADA is also listed to meet UL 864, UL 2572 and power limiting requirements.

The HPF902ULADA is compatible with any UL listed control unit utilizing reverse polarity supervised notification appliance circuits, using 24 VDC regulated outputs.

Section 3: System Overview

CAUTION: Each output circuit is rated at 3 amps. DO NOT OVERLOAD. Overloading a circuit will cause it to shut down (power limit). The circuit will automatically reset once you remove the overload condition.

3.1 Terminal Descriptions and Electrical Ratings

Note: Although each output is rated for 3 amps, the total current draw from the 4 outputs and the auxiliary power must not exceed 9 amps.

3.2 Signal Input Terminals

Terminals 14 through 19 are polarized signal input terminals. They provide the signaling connection from the main panel to the HPF902ULADA. See Figure 4-2 for more details.

The main panel supervises its notification appliance circuits used for communicating with the HPF902ULADA the same way it supervises ordinary notification appliance circuits. The signal inputs on the HPF902ULADA monitor the polarity of the voltage coming from the main panel's notification appliance circuits to determine when to operate the notification appliance circuits on the HPF902ULADA. The HPF902ULADA emulates the trouble behavior of a normal notification appliance circuit by interrupting the EOL supervision current for internal or output trouble conditions on the HPF902ULADA.

Note that the HPF902ULADA will accurately sense the polarity of the main panel's notification appliance circuits to drive the outputs whether or not the supervision connection is intact. The following situations will disconnect the EOL supervision at the signal inputs and indicate a trouble condition:

• Low AC power
• Low Battery condition
• Earth ground fault to the system power or system ground
• Auxiliary output power-limited condition
• EOL supervision trouble or power-limited condition at an output

Trouble conditions will not necessarily occur for both inputs when the trouble is specific to a particular output. Only the signal input controlling the output circuit that is in trouble will indicate a trouble condition. Below are examples where both inputs do NOT indicate trouble for a trouble occurring at only one output circuit.

Example 1: If input 1 controls all four outputs, a fault on any output will cause input 1 to indicate trouble. The fault does not affect input 2.

Example 2: If input 1 controls outputs 1 and 2, and input 2 controls outputs 3 and 4, a fault condition on output 3 or 4 will cause input 2 to indicate trouble. The fault does not affect input 1.

Note: Once the inputs are driven with forward polarity to activate the outputs, the main control panel will not be able to sense trouble conditions through its notification appliance circuit connected to the HPF902ULADA input circuits. Use the HPF902ULADA trouble relay when it is necessary to monitor trouble conditions and active alarm conditions at the same time.

Section 6 explains the significance of each trouble condition in more detail.

3.3 Notification Appliance Circuit Terminals

Terminals 3 through 10 are the notification appliance circuit output terminals. Each of the four circuits are rated at 3 amps, although you can only draw a total of 9 amps from the HPF902ULADA. The HPF902ULADA outputs are short-circuit protected (power limited) according to UL 864 standards. Overcurrent indicators are yellow LEDs. The output voltage can vary depending on the load and input voltage.

The four power-limited NAC outputs can be configured as follows:

• Four Class B circuits
• Two Class A circuits
• One Class A and two Class B circuits
• Class B, ANSI temporal-coded circuits
• Faraday synchronized outputs
• Gentex synchronized outputs
• System Sensor synchronized outputs
• Wheelock synchronization outputs
• AMSECO synchronized outputs

One or both HPF902ULADA signal inputs control the NAC outputs, depending on the specific configuration setup. Possible configurations for the HPF902ULADA are:

You can select which input controls which output, and which inputs are Class A and Class B using the 7-position DIP switch on the printed circuit board. Section 4.8 for DIP switch settings.

Section 4: Installation

Before installing the HPF902ULADA, the AC input must first be wired into the building's main electrical power through the TB1 terminals (see Figure 4-2). Shut off the electrical power to the HPF902ULADA, and then complete the general installation of the HPF902ULADA using the information in this section.

4.1 Mounting

Mount the HPF902ULADA in locations that meet the following temperature and humidity requirements. Do not expose the panel to conditions outside these ranges. For use in indoor, dry environments.

Temperature: 0° C-49° C (32° F-120° F)

Humidity: 10%-93% at 30° C (86° F) noncondensing

When mounting on interior walls, use appropriate screw anchors in plaster. When mounting on concrete, especially when moisture is expected, first attach a piece of 3/4-inch plywood to the concrete surface. Attach the HPF902ULADA to the plywood.

4.1.1 Preventing Water Damage

Water damage to the fire system can be caused by moisture entering the cabinet through the conduits. Conduits that are installed to enter the top of the cabinet are most likely to cause water problems. Installers should take reasonable precautions to prevent water from entering the cabinet. Water damage is not covered under warranty.

4.2 Wire Routing

To avoid induced noise (transfer of electrical energy from one wire to another), keep input wiring isolated from high current output and power-limited wiring. Induced noise can interfere with telephone communication or even cause false alarms. Avoid pulling a single multiconductor cable for the entire system. Instead, separate high current input/output from low current. Separate power-limited from non-power-limited wiring.

Non-power-limited wiring must be enclosed in conduit.

Wiring within the cabinet should be routed around the perimeter of the cabinet. It should not cross the printed circuit board where it could induce noise into the sensitive microelectronics or pick up unwanted RF noise from the switching power supply circuit.

Figure 4-1 Sample Wire Routing: This diagram illustrates proper wire routing within the enclosure. It shows the AC input (non-power-limited) requiring 1/4-inch spacing from low voltages, wiring within 12-18 AWG, and non-power-limited wiring in conduit separate from power-limited wiring. It also depicts connections to the control panel, AUX power and notification circuits (power-limited), and battery cables (non-power-limited). A note indicates that knockouts reduce battery capacity and space evaluation is important.

Ground fault and wire to wire short impedance to any terminal is 0 Ω.

4.3 Current Requirements (Standby and Alarm)

4.3.1 Current Drawn From Host Panel

Table 4-1 shows the HPF902ULADA current draw requirements from the main control panel when the panel's notification appliance circuit is in alarm. The current draw from the main panel when it is supervising the HPF902ULADA is the same current draw that would be present when the main panel supervises an ordinary notification appliance circuit.

4.3.2 Current Drawn from Battery

Batteries used with the HPF902ULADA must not exceed 35AH. (33AH max. for FM (Factory Mutual) Installations). Batteries larger than 7 AH will not fit into the HPF902ULADA cabinet and must be housed in the RBB Remote Battery Box. See Section 4.7 for battery installation.

The following is the maximum current draw from the auxiliary power terminals for standby calculations. These currents assume 24 or 60 hours of standby time, followed by 5 minutes of maximum alarm current.

• 195 mA for 24 Hour Standby Current
• 39 mA for 60 Hours of Auxiliary Standby Current

The above numbers were calculated assuming the use of 7 AH batteries at 100% of rated capacity.

The total current of the HPF902ULADA, plus all items powered from it, must not exceed 9 A when the panel is in alarm. Use Table 4-2 to ensure that the current does not exceed 9 A and, that the desired amount of standby is possible for the battery intended for use with the HPF902ULADA.

4.4 Connecting the HPF902ULADA to a FACP

Figure 4-2 shows the general layout of the HPF902ULADA PC board. This section also provides specific wiring details for accessories.

Figure 4-2 The Model HPF902ULADA PC Board Layout: This diagram displays the physical layout of the HPF902ULADA circuit board, indicating the placement of AC connection terminals, Earth Ground Fault Detection, battery terminals, various output terminals (OUT1-OUT4), trouble relay terminals (NC, COM, NO), input terminals (INPUT 2, INPUT 1), and DIP switches. It also shows LED indicators and labels for UL Listed Notification Appliances and connection to the Control Panel.

Consult the installation manual for specific wiring information for the control panel being used.

4.4.1 Common Trouble Relay

The HPF902ULADA has a Form C trouble relay built into Terminals 11-13. The relay provides a normally open and a normally closed contact, both of which are rated at 2.5A. The trouble relay will deactivate under any trouble condition.

A typical application of the trouble relay is to connect the HPF902ULADA normally closed (N.C.) contacts in series with the EOL supplied with the fire alarm control panel. This will cause a trouble on the fire alarm control panel when the HPF902ULADA opens its trouble contacts.

Note: The N.C. contact is the contact that is closed when the HPF902ULADA has power and there are no trouble conditions.

Figure 4-3 Trouble Relay Connection Example: This diagram shows a typical wiring setup for the trouble relay. It illustrates connecting the normally closed (NC) contacts of the trouble relay in series with the UL listed EOL from the FACP. The diagram emphasizes that this connection must be made to a power limited source.

4.5 Notification Appliance Wiring

Note: Not all devices can use the sync feature. Be sure to check Appendix A to ensure the device you have chosen will work with this feature.

Important! For all synchronization options, input 1 is the strobe input and input 2 is the audible input. The signals to input 1 and input 2 must be DC signals for the synchronization patterns to work properly. When it is desired to activate both strobes and audibles, input 1 and input 2 must be active. If it is desired to only activate strobes, then input 1 must be active and input 2 must be inactive. The audible can be deactivated and reactivated at any time by changing the signal at input 2 as long as input 1 remains active. If input 1 is not active, then input 2 is ignored.

4.5.1 Class A Supervised Wiring

Figure 4-4 shows how to wire for Class A input and output supervision. Use in/out wiring methods for proper supervision. (Refer to Appendix A for notification appliances compatible with the HPF902ULADA.)

Class A Output Notification Circuits

The configuration shown in Figure 4-4 shows two, 3 A devices wired as Class A. When using the outputs as Class A circuits, loop the wiring back to the corresponding circuit pair. For Class A wiring, no external EOL is necessary since it is built into the HPF902ULADA board.

Class A Supervised Input Circuits

The configuration shown in Figure 4-4 shows Class A supervised wiring from a fire alarm control panel to the HPF902ULADA board. Pay close attention to the polarities when wiring a panel to the HPF902ULADA and follow these requirements:

• When wiring to Terminal 18 on the HPF902ULADA, you must use two separate wires. Do not loop a single wire or twist two conductors together.

Figure 4-4 Class A Supervised Input/Output Connections: This diagram illustrates Class A wiring for supervised notification appliance circuits. It shows the regulated supervised notification appliance circuits (Class 2) with outputs OUT1-OUT4 and auxiliary power (AUX). It details Class A connections from the FACP to INPUT 1 and INPUT 2. Crucially, it provides visual examples for terminal 18, showing correct wiring with two separate wires versus incorrect wiring with a looped or twisted single wire. It also notes that for system supervision of terminals 15 and 18, looped wire under the terminals should be avoided; the wire run should be broken to provide supervision of connections.

4.5.2 Class B Supervised Wiring

Figure 4-5 shows how to wire for Class B input and output supervision. Use in/out wiring methods for proper supervision (Refer to the Appendix for notification appliances approved for use with the HPF902ULADA.)

Class B Output Notification Circuits

Figure 4-5 shows four, 1.5 A devices wired as Class B.

Place a 4.7k ohm EOL resistor (provided) at the end of each circuit to enable supervision when using all outputs as Class B notification appliance circuits. The 4.7k EOLs must be wired to the terminals whether or not you are using all output terminals.

Figure 4-5 Class B Supervised Input/Output Connections: This diagram depicts Class B wiring for supervised notification appliance circuits. It shows the regulated supervised NACs (Class B) with outputs OUT1-OUT4 and auxiliary power (AUX). It illustrates Class B connections from the FACP to INPUT 1 and INPUT 2, requiring a 4.7k ohm EOL resistor at the end of each circuit for supervision. The diagram also shows a separate EOL (must be UL listed for the FACP) for input supervision.

4.6 Ground Fault Detection Enable/Disable Jumper

In some cases the ground fault detection feature on the HPF902ULADA may interfere with the ground fault detection feature of the main control panel in the system. To disable the ground fault detection feature on the HPF902ULADA, place the jumper block on J1, across Pins 1 and 2 (see Figure 4-2).

4.7 Battery Connection

Use two 12 VDC, 7 AH gel cell batteries inside the HPF902ULADA cabinet. For batteries larger than 7 AH (not to exceed 35 AH) use the RBB Remote Battery Box. It is recommended that you replace the batteries every five years. The following steps and diagram explain how to connect the batteries.

1. Connect the black wire from the Battery – terminal to the negative (-) side of Battery #2.
2. Connect the jumper wire provided (PN 140694) from the positive (+) side of Battery #2 to the negative side of Battery #1.
3. Connect the red wire from the Battery + terminal to the positive (+) side of battery #1.

Figure 4-6 Battery Connection: This diagram shows the correct method for connecting two 12V batteries in series for the HPF902ULADA. It illustrates the placement of Battery #1 and Battery #2, the connection of the black wire to the negative terminal of Battery #2, the jumper wire connecting the positive terminal of Battery #2 to the negative terminal of Battery #1, and the red wire connecting the positive terminal of Battery #1 to the unit's positive battery terminal.

4.8 DIP Switch Settings

A 7-position DIP switch on the HPF902ULADA board allows you to select the following:

• How long the HPF902ULADA will wait before indicating a loss of AC.
• Which input (Input 1 or Input 2) will control the NACs.
• Which NACs to wire as Class A and Class B.
• Auxiliary power state.
• Which NACs to operate as steady, ANSI temporal, or sync. outputs

Refer to Figure 4-2 for the location of the DIP switch on the HPF902ULADA board.

4.8.1 Selecting the Standard Input/Output Configurations

Figure 4-7 and Figure 4-8 show the position of each switch for the non-synchronized input and output configurations. The position of Switches 4 and 5 does not affect the relationship of inputs to outputs.

Note: The HPF902ULADA checks switches 1, 2, 3, and 6 only when powering up the HPF902ULADA. If you change these switch settings, you must remove both the AC power and the battery to make the HPF902ULADA recognize the new settings.

Figure 4-7 Setting DIP Switches 1-3: This figure displays various configurations for DIP switches 1, 2, and 3. Each configuration shows the ON/OFF state of the switches and describes the resulting input/output control and circuit class (e.g., Input 1 controls all outputs (class B), Input 2 not used; Input 1 or Input 2 controls all outputs (class B) with ANSI temporal output pattern).

Figure 4-8 Setting DIP Switches 1-3 (Continued): This figure continues the display of DIP switch configurations for switches 1, 2, and 3, detailing further input/output control options and circuit classes.

Note: For 100 mS input signal debounce with no synchronization DIP switches 6 and 7 must be turned On.

4.8.1.1 Input/Output Configurations That Select ANSI Temporal-Coded Outputs

The DIP switch settings marked with an asterisk (*) in Figure 4-7 and Figure 4-8 are designed to produce ANSI temporal-coded outputs from a constant input. The figures shown below compare the output patterns of configurations before and after the addition of this feature.

Standard HPF902ULADA Input to Output Relationship: This diagram shows two waveform examples. The first depicts a steady input signal and a corresponding steady output signal. The second depicts a steady input signal and a resulting pulsed output signal with specific ON/OFF durations (e.g., 0.5 sec on, 0.5 sec off).

Input/Output Relationship for ANSI Temporal-coded Options: This diagram illustrates the ANSI temporal output pattern, showing a steady input producing a series of timed pulses (e.g., 4 sec. duration, with .5 sec on, .5 sec off, .5 sec on, 5 sec off, 5 sec on, 1.5 sec off, repeating).

With this new feature, a steady signal can produce the pattern shown above for panels not previously able to do so.

Note: The HPF902ULADA can also produce temporal patterns if the inputs are non-ANSI temporal configurations.

4.8.2 Selecting Synchronized Output Configurations

The following sections describe how to configure the HPF902ULADA as a synchronization power expander for Amseco, Faraday, Gentex, System Sensor, or Wheelock synchronized horn/strobe appliances.

Note: In order for the synchronization feature to operate properly, make sure you have set the DIP switches for the proper manufacturer. See Sections 4.8.2.1, 4.8.2.2, or 4.8.2.3.

Important! For all synchronization options, input 1 is the strobe input and input 2 is the audible input. The signals to input 1 and input 2 must be DC signals for the synchronization patterns to work properly. When it is desired to activate both strobes and audibles, input 1 and input 2 must be active. If it is desired to only activate strobes, then input 1 must be active and input 2 must be inactive. The audible can be deactivated and reactivated at any time by changing the signal at input 2 as long as input 1 remains active. If input 1 is not active, then input 2 is ignored.

4.8.2.1 Selecting Synchronized Faraday Configurations

To select the input/outputs for Faraday synchronized appliances, set the DIP switches as shown in Figure 4-9.

Figure 4-9 Faraday Synchronized Configurations: This figure shows DIP switch settings for Faraday synchronized appliances. Two configurations are presented: 'All 4 outputs Faraday Class B Synchronized' (Switch 1-3 OFF, Switch 6 ON) and 'Outputs 1 & 2, and outputs 3 & 4 Faraday Class A Synchronized' (Switch 1-2 OFF, Switch 3 ON, Switch 6 ON).

4.8.2.2 Selecting Synchronized Gentex Configurations

To select the input/outputs for Gentex synchronized appliances, set the DIP switches as shown in Figure 4-10.

Figure 4-10 Gentex Synchronized Configurations: This figure displays DIP switch settings for Gentex synchronized appliances. Two configurations are shown: 'All 4 outputs Gentex Class B Synchronized' (Switch 1 ON, Switch 2 & 3 OFF, Switch 6 ON) and 'Outputs 1 & 2, and outputs 3 & 4 Gentex Class A Synchronized' (Switch 1-3 ON, Switch 2 OFF, Switch 6 ON).

4.8.2.3 Selecting Synchronized System Sensor Configurations

To select the input/outputs for System Sensor synchronized appliances, set the DIP switches as shown in Figure 4-11.

Figure 4-11 System Sensor Synchronized Configurations: This figure illustrates DIP switch settings for System Sensor synchronized appliances. Two configurations are presented: 'All 4 outputs System Sensor Class B Synchro' (Switch 1 & 3 OFF, Switch 2 ON, Switch 6 ON) and 'Outputs 1 & 2, and outputs 3 & 4 System S Class A Synchronized' (Switch 1 OFF, Switch 2-3 ON, Switch 6 ON).

4.8.2.4 Selecting Synchronized Wheelock Configurations

To select the input/outputs for Wheelock synchronized appliances, set the DIP switches as shown in Figure 4-12.

Figure 4-12 Wheelock Synchronized Configurations: This figure shows DIP switch settings for Wheelock synchronized appliances. Two configurations are presented: 'All 4 outputs Wheelock Class B Synchronized' (Switch 1 & 2 ON, Switch 3 OFF, Switch 6 ON) and 'Outputs 1 & 2, and outputs 3 & 4 Wheelock Class A Synchronized' (Switch 1-3 ON, Switch 6 ON).

4.8.2.5 Selecting Synchronized AMSECO Configurations

To select the input/outputs for AMSECO synchronized appliances, set the DIP switches as shown in Figure 4-13.

Figure 4-13 AMSECO Synchronized Configurations: This figure displays DIP switch settings for AMSECO synchronized appliances. Two configurations are shown: 'All 4 outputs AMSECO Class B Synchronized' (Switch 1, 2 & 3 OFF, Switch 6 OFF, Switch 7 ON) and 'Outputs 1 & 2, and outputs 3 & 4 AMSEC Class A Synchronized' (Switch 1-2 OFF, Switch 3 ON, Switch 6 OFF, Switch 7 ON).

4.8.3 Setting the Loss of AC Delay

Normal selection for reporting loss of AC is 3 hours. The ON position is for test purposes only and the normal position for Switch 4 is OFF. For testing the Low AC reporting, you can temporarily turn Switch 4 ON without removing power.

Note: Remember to turn the switch OFF when testing is complete.

Figure 4-14 Setting DIP Switch 4: This figure shows the ON and OFF positions for DIP Switch 4. The OFF position (normal) results in a 3-hour delay before reporting AC trouble. The ON position (test) causes AC trouble conditions to occur immediately (0 hours).

4.8.4 Setting the Auxiliary Output

Switch 5 on the DIP switch determines how the auxiliary power operates on the HPF902ULADA. The HPF902ULADA checks Switch 5 only when powering up the HPF902ULADA. If you change this switch, you must remove both the AC power and the battery to force the HPF902ULADA to recognize the new switch setting.

Figure 4-15 Setting DIP Switch 5: This figure illustrates the ON and OFF positions for DIP Switch 5. The ON position means auxiliary power will shut down 30 seconds after AC power is lost, and the unit runs on battery backup. Auxiliary power restores immediately when AC power restores. The OFF position means auxiliary power is always on and will not shut down when the system loses AC power.

Section 5: Sample Applications

The drawings in this section show various HPF902ULADA configurations, including "daisy-chaining".

5.1 Notification Power Applications

Figure 5-1 Input 1 Activates All Four Outputs: This block diagram shows a Local Fire Alarm Control Panel connected to the HPF902ULADA via a Notification Circuit. Input 1 of the HPF902ULADA controls all four outputs (Output 1, Output 2, Output 3, Output 4), powered by 120 VAC.

Figure 5-2 Input 1 Activates NACs 1 and 2; Input 2 Activates NACs 3 and 4: This block diagram shows a Local Fire Alarm Control Panel connected to the HPF902ULADA via two Notification Circuits. Input 1 controls Outputs 1 and 2, while Input 2 controls Outputs 3 and 4, powered by 120 VAC.

Note: When multiple power supplies are used with one control unit they will not sync with each other.

Figure 5-3 One Control Activating Two HPF902ULADAs: This block diagram illustrates a Local Fire Alarm Control Panel connected to two HPF902ULADA units. The control panel's Notification Circuit connects to Input 1 of the first HPF902ULADA, which powers Outputs 1-4. The Notification Circuit also connects to Input 1 of the second HPF902ULADA, powering its Outputs 1-4.

Figure 5-4 One Control Activating Three HPF902ULADAs in Series: This block diagram shows a Local Fire Alarm Control Panel connected to three HPF902ULADA units in a series configuration. The control panel's Notification Circuit connects to Input 1 of the first HPF902ULADA (Outputs 1-3). Output 4 of the first unit connects to Input 1 of the second HPF902ULADA (Outputs 1-3). Output 4 of the second unit connects to Input 1 of the third HPF902ULADA (Outputs 1-4).

Figure 5-5 Each Control NAC Activates Five Output NACs: This block diagram shows a Local Fire Alarm Control Panel with two Notification Circuits. Notification Circuit 1 connects to Input 1 of the first HPF902ULADA, activating Outputs 1-3. Notification Circuit 2 connects to Input 2 of the first HPF902ULADA, activating Output 4. The first HPF902ULADA's Output 1 connects to Input 1 of a second HPF902ULADA (Outputs 1-3). The second HPF902ULADA's Output 4 connects to Input 1 of a third HPF902ULADA (Outputs 1-4). This configuration shows how multiple NACs can be activated based on different control inputs.

5.2 Non-Resettable Power Application

The HPF902ULADA provides a dedicated 3 A auxiliary power output that you can select as non-resettable (output is always on). See Section 4.8.4 for setting the auxiliary power. If you need more than 3 A, wire the inputs as shown in Figure 5-6.

Figure 5-6 Auxiliary Output Wiring for Non-Resettable Power: This diagram illustrates wiring for non-resettable auxiliary power. It shows connections to terminals AUX, OUT4, OUT3, OUT2, OUT1, TROUBLE, COM, NO, INPUT 2, and INPUT 1. The text indicates this wiring provides up to 6 amps (max.) of continuous, non-resettable power distributed among the four outputs. A note states that the maximum current is 3 amps per output and all four outputs will be non-resettable power, with trouble conditions supervised using the trouble relay.

5.3 Door Holder Application

In a typical door holder application, the door holder power must be interrupted to close all fire doors under the following conditions:

• Any active alarm condition.
• AC power failure (to conserve battery power).

To close the fire doors in these situations, wire an N.C. programmable relay from the FACP in series with the auxiliary power to the door holders as shown in Figure 5-7.

The circuit shown in Figure 5-7 will provide up to 3 amps of door holder power. (See Section 5.2 if you need more than 3 amps of auxiliary power.) The power in this example is released when AC power is off for 30 seconds or more, or when the relay from the fire alarm control panel becomes open. You would have to use the equivalent of a programmable relay from a fire alarm control panel that is programmed to open under alarm conditions. See Section 4.8.4 for selecting auxiliary power options.

Figure 5-7 Door Holder Wiring Example: This diagram shows a Fire Alarm Panel connected to the HPF902ULADA and Door Holders. A normally closed (NC) relay is wired in series with the auxiliary power to the door holders. The diagram indicates the door holders are ESL DHX 1224 models.

Section 6: Troubleshooting

6.1 LEDs

Light-emitting diodes (LEDs) indicate fault conditions. This section describes the LED states.

The eight LEDs indicate a fault in one of the circuits (either NACs 1 through 4, auxiliary power, earth fault, low AC, or battery). A fault in the LED's corresponding circuit will light the LED (labeled on the board). Their functions are as follows:

See Figure 4-2 for locations of LEDs.

6.2 Trouble Conditions

Note: While Input 1 & 2 are activated, Input 1 & 2 will not open to indicate a trouble or supervisory condition. Once the circuit is deactivated it will open to indicate a trouble or supervisory condition.

6.3 Earth Fault Resistance

Table 6-1 lists the earth fault resistance detection for each applicable terminal on the FACP.

6.4 Removing and Replacing the Control Panel

This section provides instruction on how to remove and replace the control panel if it is determined that the control panel needs to be repaired or replaced.

6.4.1 Removing the Control Panel

Follow these step to properly remove the control panel:

• Remove the two heat sink screws. The heat sink screws are located on the top of the cabinet. See Figure 6-1.
• Remove the four chassis mounting screws. See Figure 6-1 for chassis screw locations.
• Carefully remove the control panel.

Figure 6-1 Mounting Screw Locations: This diagram indicates the locations of heat sink screws and chassis mounting screws on the top and sides of the cabinet for removing the control panel.

6.4.2 Replacing the Control Panel

Follow these steps to replace the control panel:

Note: Use a grounding strap when working with static sensitive components.

1. Align the control panel with the chassis mounting stand-offs. See Figure 6-1.
2. Insert the four chassis mounting screws (see Figure 6-1). Do not over tighten the chassis mounting screws.
3. Insert the two heat sink screws (see Figure 6-1). Do not over tighten the heat sink screws.

Note: The heat sink screws must be installed for proper heat dispersion of the power module's power supply.

Appendix A: UL Listed Notification Appliances

For proper operation, you must use polarized devices with a Model 7628 4.7k ohm EOL resistor on each circuit. All supervised notification appliances used with the HPF902ULADA must be polarized.

Note: Not all devices can use the Sync feature, be sure to check Table A-1 to ensure the device you have chosen will work with this feature. Synchronization is UL listed for multi-circuit operation.

A.1 Notification Appliances

Table A-1 below lists notification appliances compatible with the HPF902ULADA. Appliances which can be synchronized indicate the type of sync available in the columns marked Audio and/or Visual.