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NOTE:
All
CAUTIONS
and
WARNINGS
are identified by the symbol
. All
WARNINGS
are printed in bold capital
letters.
WARNING: READ THIS INSTRUCTION MANUAL CAREFULLY. FAILURE TO COMPLY WITH ANY OF THE
FOLLOWING INSTRUCTIONS, CAUTIONS, AND WARNINGS COULD RESULT IN IMPROPER APPLICATION
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.
1.0 INTRODUCTION AND SPECIFICATIONS:
1.1 INTRODUCTION
The PS-24-8MC
POWER
PATH 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 101648 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 up to 20 Amp/Hour (AH) of battery backup.
Batteries larger than 12 AH will not fit inside cabinet, use of an external battery cabinet is necessary.
Two FACP NAC circuits or two “Dry” contact initiating circuits can be connected to the
POWER
PATH 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 shall not exceed 8.0 Amps.
The PS-24-8MC under non-alarmed condition provides independent loop supervision for Class “A” and Class “B”
FACP NAC circuits. In the event of a loop trouble, the FACP will be notified via the
POWER
PATH 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, 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.
Wheelock horns/strobes, strobes and horns with synchronizing capability can be utilized with the PS-24-8MC.
Audibles can be silenced with only two wires. Additionally, the
POWER
PATH can provide a temporal coded
signal for appliances that can utilize it.
