Fire Safety Model PAD-3 Distributed Power Module NAC Expander Installation, Operation, and Maintenance Manual Siemens Building Technologies, Inc. Siemens Building Technologies, Ltd. 8 Fernwood Road 2 Kenview Boulevard Florham Park, New Jersey 07932 Brampton, Ontario L6T 5E4 Canada P/N 315-099082-9...
PREFACE Along with the use of this Owner’s Manual, the appropriate following standards and the manufacturers’ instructions for initiating and signaling devices should be used to install and maintain a functioning Fire Alarm Signaling System. NFPA 70 National Electrical Code NFPA 72 National Fire Alarm Code NFPA 101...
2 to indicate trouble. The fault does not affect input 1. Once the PAD-3’s inputs and outputs are activated, the fire alarm control unit will not be able to sense trouble conditions through its notification appliance circuit connected to the PAD-3 input circuits. Use the PAD-3 trouble relay when it is necessary to monitor trouble conditions and active alarm conditions at the same time.
The PAD-3 meets the class A requirements of the Code of Federal Regulations (CFR 47), Part 15, subpart J, for electromagnetic field emissions. Underwriters Laboratories The PAD-3 control unit is listed under UL Standard 864 for compliance to NFPA Standard 72 for fire service.
• Maximum Input Current: 7.0mA Notification Appliance Circuits • Operating Voltage Range: Special Application 16-32 VDC Refer to Siemens Compatible Notification Appliances (P/N 315-096363) for maximum number per NAC • Synchronized appliances permitted • Maximum Alarm Current: 3.0A per circuit (6.0A total for NACs and auxiliary power) •...
Auxiliary Power Output • Operating Voltage Range: Special Application 18-28 VDC Compatible devices: TRI-B6R (P/N 500-893536), TRI-R (P/N 500-896224) • Current: 3 amps max (set to shutdown when AC power fault, battery rating up to 7.0 A.H.) 1.5 amps max (set to shutdown when AC power fault, battery rating up to 15 A.H.) 0.17 amps max (set to on when AC power fault, 24 hours standby, battery rating 7.0 A.H.) 0.44 amps max (set to on when AC power fault, 24 hours standby, battery rating 15 A.H.) (Refer to Section 6.2, Battery Size Calculation)
When mounting the enclosure on interior walls, use appropriate screw anchors in plaster. When mounting on concrete, especially when moisture is expected, first attach a piece of ¾-inch plywood to the concrete surface. Attach the PAD-3 enclosure to the plywood. Consult the installation instructions included with the enclosure for proper mounting.
Before installing the PAD-3, the input must first be wired into the building’s main electrical power through the TB1 terminals. See Figure 2-2 on page 8. Shut off the electrical power to the PAD-3, and then complete the general installation of the PAD-3 using the information in this section.
2.3 WIRE ROUTING Notes: All high voltage and non-power limited wiring must be kept separate from power limited wiring. A ¼” separation must be maintained, with high voltage and non-power limited wiring running in separate conduit openings from power wiring. 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.
2.5 WIRING THE PAD-3 Figure 2-2 shows the general layout of the PAD-3 PC board. This section also provides specific wiring details for accessories. Consult your control unit manual for specific wiring information on the control unit being used. If you are using a Siemens control unit, see Section 3 for connections.
2.5.2 Battery Connection The PAD-3 requires a 24V sealed lead-acid battery set. The battery capacity can be from 7 to 15A.H. For battery sets larger than 7A.H., an enclosure with System 3 rails or a separate battery enclosure is required.
One of the PAD-3 boards must have its charging circuit disabled. e) The PAD-3 with the active charger is limited to 1.5 amps of auxiliary DC power at terminals 18 and Two (2) battery connection splitters (part number 230-299203) are used on the battery set for proper connection.
Style Y (Class B) Supervised Input Circuits Figure 2-8 shows Style Y (Class B) supervised wiring from a fire alarm control unit to the PAD-3 board. Use the control panel’s EOL resistor installed as shown to enable notification input supervision.
Style Z (Class A) Supervised Input Circuits The configuration shown in Figure 2-9 shows Style Z (Class A) supervised wiring from a fire alarm control unit to the PAD-3 board. Pay close attention to the polarities when wiring the unit and follow these requirements: When wiring to terminal 2 and 5 on TB2, you must use two separate wires.
2.5.6 Common Trouble Relay The PAD-3 board has a Form C trouble relay built into terminals 9-11 of TB2. The trouble relay will de- energize under a trouble condition. A typical application of the trouble relay is to connect the PAD-3 normally closed (N.C.) contacts in series with an EOL of a spare IDC or NAC or monitor input from a fire alarm control unit.
The ground fault reference for the PAD-3 may be different than the reference used by the fire alarm panel, resulting in a ground fault trouble at the panel even when none exists. To remedy this condition, the PAD-3 can have its ground fault detection circuit disabled.
3. CONNECTION TO CONTROL UNITS The drawings in this section show you how to connect the PAD-3 to compatible Siemens control units. See control unit owners manual for more information. PAD - 3 Trouble Input 1 Input 2 AC Fail...
PAD-3 Trouble Input 1 Input 2 AC Fail Relay 10 11 20 21 2.2K 1/2W EOL P/N 140-820380 Class B Supervised Notification Note: The CSM-4 allows up to 3 ohm max. total line resistance P/N 140-820405 Circuits for Notification Appliance Circuits.
PAD-3 Trouble Input 1 Input 2 AC Fail Relay 10 11 20 21 10K 1/2W EOL P/N 140-820396 Class B Supervised Notification Note: 3 ohm max. total line resistance P/N 140-820405 Circuit of Notification Appliance Circuit 24K EOL connecting wire.
PAD-3 Trouble Input 1 Input 2 AC Fail Relay 10 11 18 19 5.6K 1/2W EOL P/N 140-112166 Class B Supervised Notification Note: 3 ohm max. total line resistance P/N 140-820405 Circuits of Notification Appliance Circuit 24K EOL connecting wire.
PAD-3 Trouble Input 1 Input 2 Relay AC Fail 10 11 20 21 5.6K 1/2W EOL P/N 140-112166 Class B Supervised AE-30U Notification P/N 140-820405 Circuit 24K EOL Note: 3 ohm max. total line resistance CP-35 of Notification Appliance Circuit connecting wire.
PAD-3 Trouble Input 1 Input 2 AC Fail Relay 10 11 20 21 Supervised Notification Circuits Class A AA-30U 5.6K 1/2W EOL P/N 140-112166 Note: 3 ohm max. total line resistance of Notification Appliance Circuit CP-35 connecting wire. CP-35 Actuation input Input power Figure 3-6.
PAD-3 Trouble Input 1 Input 2 AC Fail Relay 10 11 18 19 Class B Supervised 3.6K 1/4W EOL Notification P/N 140-820185 Circuits P/N 140-820405 24K EOL Loop Loop To earth ground TRI-B6R 3.6K 1/4W EOL P/N 140-820185 To earth ground...
NOTES: All wiring must be in accordance with Article 760 of NEC or local PAD-3 building codes. Wiring for each zone can either be Class A or Trouble Input 1 Input 2 AC Fail Relay Class B. 10 11 19 20 21 All output circuits are power limited to NFPA 70 per NEC 760.
The drawings in this section show various configurations, including daisy-chaining. 4.1 Notification Appliance Power Applications 120 VAC Notification Appliance Circuit Fire Control PAD-3 Unit Input 1 1 2 3 4 Figure 4-1. Input 1 activates All Four Outputs and Input 2 not used 120 VAC...
1 2 3 4 1 2 3 4 NOTE: Only the appliances connected to the same PAD-3 will operate synchronously when the output circuits of the PAD-3 are set to synchronization mode. The appliances connected to a different PAD-3 will not operate synchronously.
120 VAC Notification Appliance Circuit Fire Control PAD-3 Unit Input 1 1 2 3 Output 4 120 VAC 120 VAC PAD-3 PAD-3 Input 1 Input 1 Output 4 1 2 3 1 2 3 4 Figure 4-5. One Control Panel activating three PAD-3s...
#2 Activates NOTE: Only the appliances connected to the same PAD-3 will operate synchronously when the output circuits of the PAD-3 are set to synchronization mode. The appliances connected to a different PAD-3 will not operate synchronously. Figure 4-6. Each control signal circuit activates five output circuits...
Circuit Zone Wires Single Wire Two Wires Trouble contacts monitored by FACP zone Incorrect Incorrect Correct PAD-3 PAD-3 PAD-3 1+ 1- 1+ 1- 1+ 1- EOL of Trouble Contact from FACP P/N 140-820405 24K EOL of NAC Circuit Figure 4-7. Multiple PAD-3s activated by a single notification circuit...
4.2 Door Holder Applications In a typical door holder application, the door holder power must be released to close all fire doors under the following conditions: Any active alarm condition. AC power is no longer present (to conserve backup battery power). To close the fire doors in these situations, wire a normally closed relay contact from the fire alarm control unit in series with the auxiliary power to the door holders.
5. PROGRAMMING The PAD-3 functions are programmed with a 10-position DIP switch and six 3-position jumpers. The following section describes each setting. 5.1 DIP SWITCH SETTINGS The 10-position DIP switch allows you to select the following: • How long will the unit wait before indicating a loss of AC •...
5.1.1 Selecting the Input/Output Configuration Figure 5-1 shows the position of each switch on the DIP switch for various input and output configurations. The position of switch 4 through 10 does not affect the relationship of inputs to outputs. Switch 1 OFF & Switch 2 OFF & Switch 3 OFF: Input 1 controls all outputs (Class B).
Switch 4 on the DIP switch determines how the auxiliary power operates. The PAD-3 checks switch 4 only when powering up. If you change this switch, you must push switch SW2 momentarily to reset the unit to recognize the new switch setting.
5.1.3 Setting the Input’s Control of their NACs DIP switch settings 5 to 8 are designed to produce outputs from a constant on input. The figures shown below compare the output patterns of configurations before and after the addition of this feature. Slave Operation The Slave operation output follows the input and can be used when the fire alarm control unit NAC is steady, coded, march time, or temporal and the desired output is the same.
5.1.4 Setting the AC Power Fault Reporting Delay Normal selection for reporting loss of AC is 60 minutes. The OFF position is for test purposes only and the normal position for switch 9 is ON. For testing the Low AC reporting, you can temporarily turn switch 4 OFF without removing power. Remember to turn the switch ON when testing is complete.
5.2 JUMPER SETTINGS Factory settings are shown. See Figure 2-2 for the location of these jumpers. Note: Changing settings for J4-J8 also affect the settings for SW1 DIP switches 1-3. J4 – NAC 1-2 Configuration (J5 must be set the same) •...
14) Battery Amp-Hour Rating required (multiply line 12 times line 13) A.H. Up to two PAD-3 boards can be connected to a common battery set. When calculating for 2 PAD-3 boards Both boards must be mounted on System 3 rails in the same enclosure.
See Siemens P/N 315-096363 for compatible notification appliances. 8. TROUBLESHOOTING This section describes the LED states and provides possible trouble conditions of the PAD-3. 8.1 LED INDICATORS Light-emitting diodes (LEDs) indicate fault and normal conditions. The seven LEDs indicate a fault condition in one of the circuits (either outputs 1 through 4, auxiliary power, ground fault, or battery).
One or more external field connections shorted to earth ground (Less than 40K ohms). Note: When the PAD-3 power is referenced to the control unit power; the ground detection circuit may be disabled with jumper J9. AUX. P.S. LED (DS5) lit.
9. BATTERY MAINTENANCE Perform the following tests at the recommended interval. Replace the battery set every four years or if any of the test criteria are not met. Initiation / Reacceptance Charger Test—With the batteries fully charged and connected to the charger, measure the voltage across the battery set.
10. GLOSSARY Alarm Signal. A signal that indicates the presence of an emergency requiring immediate action, such as an alarm for fire from a manual station, a waterflow alarm, or a automatic smoke detector. Alarm System. A combination of compatible initiating devices, control units, and notification appliances designed and installed to produce an alarm signal in the event of a fire.
Siemens Building Technologies, Inc. Siemens Building Technologies, Ltd. 8 Fernwood Road 2 Kenview Boulevard Florham Park, New Jersey 07932 Brampton, Ontario L6T 5E4 Canada P/N 315-099082-9...