 |
 |
 |
|
Description
POWERPATH Series PS-24-8MC is an 8 Amp, 24VDC, filtered and regulated, supervised remote power supply/charger used for supervision and expanded power driving capability for Fire Alarm Notification Appliance Circuits. The PS-24-8MC may be connected to any 12V or 24V (FWR or DC) Fire Alarm Control Panel (FACP) by using a Notification Appliance Circuit (NAC) or a Dry Contact. Primary applications include NAC expansion (supports ADA requirements) and auxiliary power to support system accessories. This unit provides filtered and regulated 24VDC, 8 Amp up to four (4) Class B, two (2) Class A, or two (2) Class B and one (1) Class A Notification Appliance Circuits. With the optional plug-in PS-4CA module the unit supports (4) Class A Notification Appliance Circuits. Additionally, an auxiliary power output of 3.5 Amps (disconnected upon AC power loss or an alarm condition) or 200 mAmps (constant) is provided, which can be manually reset. The PS-24-8MC also contains a battery charger capable of charging either 7 or 12 Amp/Hour (AH) of battery backup.
Two FACP NAC circuits or two Dry contact initiating circuits can be connected to the POWERPATH inputs. These inputs can then be directed to control supervision and power delivery to any combination of the four (4) outputs.
Each output is rated at 3.0 Amps (Class B) or (Class A) and can be programmed to generate a steady or Code 3 Temporal Horn sound and a strobe output under alarm condition. Total load for the PS-24-8MC NAC circuits must not exceed 8.0 Amps.
The PS-24-8MC under non-alarm condition provides independent supervision for Class A and Class B FACP NAC circuits. In the event of circuit trouble, the FACP will be notified via the POWERPATH steered input (IN1 or IN2). In addition there are two sets of trouble reporting terminals, one used for AC power loss reporting and the other for all troubles. The AC power loss reporting, on the common trouble terminals and on IN1 or IN2, can be delayed for either 30 seconds or 170 minutes. The AC power loss terminals will always report the trouble 30 seconds after loss of AC power.
The PS-24-8MC POWERPATH is UL Listed under UL Standard 864, 9th Edition to be used with any 24 volt Listed Regulated notification appliances. It includes the capability to synchronize Wheelock strobes and horns and to silence the horn signal when horn/strobes are operating on two wires.
Features
Approvals
Approvals Include: UL Standard 864 California State Fire Marshal (CSFM), New York City (MEA), Factory Mutual (FM), Chicago (BFP) See Approvals by model in Specification and Ordering Information
Compliant with NFPA 72
Inputs
120VAC, 50/60Hz, 5.0 Amps Operating Power in Alarm
24VDC Battery Backup Connection
Two (2), 12V or 24V NAC Initiating Circuits (8-33V at 5mA) FWR or DC
Two (2) Dry Contact initiating Circuits
Accepts two (2) Class A or two (2) Class B circuit inputs
Built in battery charger for sealed lead acid or gel type batteries
Outputs
NAC outputs are 24VDC, 3.0 Amps each, power limited
8 Amps total alarm current
Capable of four (4), Class B circuits
Capable of two (2) Class A circuits
Capable of four (4) Class A circuits with optional PS-4CA module
Capable of one (1) Class A circuit and two (2) Class B circuits
Temporal (Code 3) or constant voltage output
Built-in Wheelock synchronization mode that can be fed to any or all of the output circuits
Input and output can be synchronized with IN>OUT SYNC mode (SM, DSM or 2nd PS-24-8MC is required)
Audible silence capability
Filtered and electronically regulated output
3.5 Amp auxiliary power limited output with reset capability. (Removed upon AC loss or alarm. Automatic reset 30 seconds after AC power returns or the alarm condition is over) or 200 mAmps auxiliary power limited output which remains on during AC loss or an alarm condition
Supervision
Compatible with 12V or 24V (FWR or DC) FACP
Signaling appliance circuits are supervised and steered to either IN1 or IN2
2.2K Ohm, 1 Watt (Wheelock Model #MPEOL) End of Line Resistor (EOLR) for supervision of all outputs
AC loss trouble reported over a separate set of contacts (delay of 30 seconds)
All troubles are reported over the common trouble contacts (AC loss can have a delay of 30 seconds or 170 minutes)
Automatic switchover to standby battery when AC fails
Thermal and short circuit protection with auto reset
Input and output status LED indicators
AC fail supervision
Battery presence and low battery supervision
Ground Fault Detection (60K ohms)
4 latching LEDs for NAC trouble annunciation
Power
Not Battery Dependent - Full 8A even if battery is degraded
Automatic switch over to standby batteries when AC fails
Supports sealed lead acid or gel type batteries
Fused battery protection
Thermal and short circuit protection with auto reset
Supports both 7AH or 12AH batteries in the same cabinet (Cabinet Size: 16.70 H x 12.83 W x 5 D)
POWERPATH Operating Modes:
Normal Mode: Provides constant 24 VDC output upon initiation by a voltage to input IN1 or IN2 or by a contact opening on DRY1 or DRY2. The unit returns to standby mode when the input is deactivated.
Wheelock Sync Mode: Provides signals for synchronization of patented Wheelock audible and strobe notification appliances. Audibles can also be silenced in this mode while the strobes continue to flash.
In>Out Sync Mode: Accepts a coded signal or synchronization signal on the input to provide a coded output or synchronized output. This signal may come from a FACP, another POWERPATH or a Wheelock SM or DSM synchronization module. Caution: Do not use strobes on coded output circuits.
Temporal Mode: Codes the output voltage in a code-3 temporal pattern to drive audible appliances such as horns, bells or chimes. Caution: Do not use strobes on coded output circuits.
| Model Number | Input Voltage/Current | | | | | PS-24-8MC | 120/220 VAC @ 50/60 Hz; 5.0 amps max. | | | PS-4CA | Four class “A” plug-in module for PS-24-8MC | | | Output NAC Circuit | Output Voltage/Current | | | Four (4) Class “B” or | 24 VDC @ 3 amps per Circuit | | | Two (2) Class “A” or | 24 VDC @ 3 amps per Circuit | | | One (1) Class “A” and Two (2) Class “B” or | 24 VDC @ 3 amps per Circuit (Class “A”) | | | Four (4) Class “A” (optional PS-4CA module) | 24 VDC @ 3 amps per Circuit (Class “A”) | | | Standby Current | 0.080 Amps | | | Alarm Current | 0.240 Amps | | | Total NAC Current | 8 Amps Max. | | | Standby Batteries | Standby Time | Alarm Output | Aux Output | | | Total Amps/Minutes | CP Mode | MP Mode | | | 24 VDC/12 AH | 24 Hours | 8 Amps/15 Minutes | 200 mA | 3.5A during | | | (uses two (2) 12 VDC batteries in series) | 60 Hours | 8 Amps/15 Minutes | 60 mA | nonalarm | |
|
|
|
 |
|
 |
|
|
|
