wheelock PS-12-24-8 INSTALLATION INSTRUCTIONS

POWERPATH

PS-12/24-8

(108114)

POWER BOOSTER

POWER SUPPLY

Installation Instructions

273 Branchport Avenue, Long Branch, NJ 07740-6899 Ph: [phone] Fax: [phone]
Web Site: www.wheelockinc.com e-mail: [e-mail]

P83862 M

Copyright 2002 Wheelock, Inc. All rights reserved.

Thank you for using our products.

Use this product according to this instruction manual. Please keep this instruction manual for future reference.

TABLE OF CONTENTS

1.0 - INTRODUCTION AND SPECIFICATIONS

1.1 - INTRODUCTION 2

1.2 - SPECIFICATIONS 3

1.3 - TERMINOLOGY 3

1.4 - TERMINAL IDENTIFICATION 5

1.5 - LED STATUS 7

1.6 - BATTERY MAINTENANCE 7

2.0 - INSTALLATION INSTRUCTIONS 7

2.1 - UNPACKING 7

2.2 - MOUNTING 7

2.3 - WIRING 9

2.4 - RELAY STATUS CONNECTIONS 10

3.0 - OPERATION 11

3.1 - MODES OF OPERATION 11

3.2 - DIP SWITCH SETTINGS 11

3.3 - CLASS “B” OPERATION 12

3.4 - CLASS “A” OPERATION 15

3.5 - MASTER REMOTE OPERATION 19

4.0 - TROUBLESHOOTING 21

5.0 - COMPATIBLE APPLIANCES 22

6.0 - WARRANTY STATEMENT 23

FIGURE 1: POWERPATH PS-12/24-8 4

FIGURE 2: TERMINAL LOCATIONS 6

FIGURE 3: MOUNTING DIMENSIONS 8

FIGURE 4: BAT FAIL/AC FAIL DIAGRAM 10

LIST OF FIGURES

FIGURE 5: OUTPUT DIP SWITCH(S) 11

TABLE 1: TERMINAL IDENTIFICATION 5

TABLE 2: LED STATUS DESCRIPTION 7

TABLE 3: DIP SWITCH SELECTION 9

LIST OF TABLES

TABLE 4: TROUBLESHOOTING 19

P83862 M Sheet 1 of 23

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-12/24-8 POWERPATH is an 8 AMP, 12/24VDC, filtered and regulated, supervised remote power supply/charger used
for supervision and expanded power driving capability for Fire Alarm Notification Appliance Circuits. The PS-12/24-8 may be
connected to any 12 or 24VDC 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 12 or 24VDC, 8 AMP supply to up to four (4) Class B, two (2) Class “A”,
or two (2) Class “B” and one (1) Class “A” Notification Appliance Circuits. Additionally, an auxiliary power output that can be
reset is provided. The PS-12/24-8 also contains a battery charger capable of charging either 7 or 12 AMP/Hour (AH) of battery
backup. The PS-12/24-8 can only provide a maximum load of 8 amperes for 5 minutes with a 7AH battery or 15 minutes with a
12AH battery.

Two FACP NAC circuits or two “Dry” contact closures 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 2 AMPS (either Class "A" or Class "B") and can be programmed to generate a steady or Code 3
Temporal horn sound and a strobe output under alarm condition. A maximum 4 AMP output is achieved by paralleling 2
outputs (Class "B" only).

The PS-12/24-8 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 POWERPATH steered input (IN1 or IN2). In addition
there are common trouble output terminals (used to indicate a loop trouble) and common trouble input terminals (used generically
by any initiating circuit).

Wheelock horns/strobes, strobes and horns with synchronizing capability can be utilized with the PS-12/24-8. Audibles can be
silenced with only two wires. Additionally, the POWERPATH can provide a temporal coded signal for appliances that can
utilize it.

P83862 M Sheet 2 of 23

1.2 SPECIFICATIONS

Approvals:

• UL Listed 864 Control for use with Fire Protective Signaling

• MEA approved – NYC Dept. of Buildings

• California State Fire Marshall (CSFM) approved

• NFPA 72 compliant

Inputs:

• 115VAC, 60Hz, 3.2 AMP Operating Power in Alarm

• 12/24VDC Battery Backup Connection

• Two (2), 12 or 24VDC NAC Initiating Circuits (9-30VDC at 5mA)

• Two (2) “Dry” Contact initiating Circuits

• Accepts two Class “A” or two Class “B” circuit inputs

• Built in battery charger for sealed lead acid or gel type batteries

Outputs:

• Switch selectable 12VDC or 24VDC power limited outputs

• 8 AMP continuous supply current at 12VDC or 24VDC for 5 minutes with 7AH battery or 15 minutes with 12AH

battery.

• Capable of four (4), Class "B" circuits (2 Amps each)

• Two outputs may be paralleled for a maximum output of 4 AMPS on a circuit (Class "B" only)

• Capable of two (2) Class “A” circuits (2 Amps each).

• Capable of one (1) Class “A” circuit (2 Amps) and two (2) Class “B” circuits (2 Amps each)

• Code 3 or constant voltage output generation

• 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 2

• Audible silence capability

• Filtered and electronically regulated output

• 50mA auxiliary output with reset capability

Supervision:

• Compatible with 12 or 24VDC FACP

• Signaling appliance loops are supervised and steered to either IN1 or IN2

• 22K OHM, ¼ Watt End-of-Line-Resistor (EOLR) for supervision of all outputs

• Common input and output trouble circuits

• 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 (Form “C” contact, 1 AMP 28VDC)

• Battery presence and low battery supervision (Form “C” contact, 1 AMP 28VDC)

• Auxiliary output fail supervision (Form “C” contact, 1 AMP 28VDC)

• Ground Fault Detection (factory installed UL Listed 22K OHM resistor /wire assembly connected from positive (+)

1.3 TERMINOLOGY

AUX to chassis ground)

CLASS “A” = STYLE Z
CLASS “B” = STYLE Y
FACP = Fire Alarm Control Panel
EOLR = End-of-Line Resistor
NAC = Notification Appliance Circuit
SM = Wheelock Sync Module with single output.
DSM = Wheelock Sync Module with two outputs.
C = Common
NC = Normally Closed
NO = Normally Open
AH = Ampere/Hour

nd

PS-12/24-8 is required)

P83862 M Sheet 3 of 23

Figure 1:

POWERPATH PS-12/24-8

22K OHM RESISTOR/WIRE ASSEMBLY

BAT FAIL

NC C NO

AC FAIL

NC C NO

OPEN = 24V SW1 CLOSED = 12V

POWER SUPPLY

TRANSFORMER

DC

SW1

SW2

+

DETAIL A

_

NO "REMOTE" C

AUX

+

AUX
RESET

LOGIC BOARD

_

_

OUT2

OUT1

+

CLOSED

OUT2

INP2

AC

OUT3

AC

UPPER

LOWER

OUT4

FAULT

"FAULT" NC
C

NO

WHITE
LEAD

BLACK
LEAD

C

NC

115 VAC, 60Hz

GREEN
LEAD

GROUND

+

-

IN1 IN2

+

OUT3

OUT4

_

RET1

_

BAT+-

ON

ON

ON OFF

+

RET2

+

AC

4

2 3

1

OUT1

4

2 3

1

INP1

_

C "DRY1" NC

IN2

_

RET2

C "DRY2" NC

DC

_

DC

+

_

OUT3

+

+

OUT

ON

4

ON

ON

OFF

_

OUT1

4

INPUT SELECT

TEMPORAL

2 3

STROBE SYNC

1

IN>OUT SYNC

OUT2

4

INPUT SELECT

TEMPORAL

2 3

STROBE SYNC

1

IN>OUT SYNC

IN1

+

RET1

3.2 AMP

OPEN

DETAIL B

P83862 M Sheet 4 of 23

1.4 TERMINAL IDENTIFICATION

b

Table 1: Terminal Identification

Balloon Identification Terminal Function/Description

Numbers (Figure 2) Identification Logic Board

1

2

3
4
5

6

7

8

9

10

11
Power Supply Board
12

13

14

IN1+,IN1- These terminals connect to the input voltage source (i.e. 12VDC or 24VDC

FACP). The FACP will supply a voltage from 9-30VDC at 5mA. During the
alarm condition these inputs will cause the designated outputs to drive the
notification appliances (designated outputs are set by output DIP switch banks).
During Stand-by on a FACP, a trouble condition on the designated loop will
cause these inputs to trip the FACP by opening the FACP loop. Alarm condition
always overrides trouble to drive output indicating appliances.

RET1+, RET1- EOLR is connected on these terminals corresponding to IN1+ and IN1-, or the

loop may be continued to other power supplies or appliances before terminating.
IN2+, IN2- Same as IN1+, IN1- for corresponding terminals.
RET2+, RET2- Same as RET1+, RET1- for corresponding terminals.
C “DRY1” NC Dry contacts are used to actuate the designated outputs. Contacts are normally

closed and actuate the power supply on contact Open. Designated outputs

correspond to IN1+,IN1-. NOTE: FACP NAC circuit cannot energize the power

supply by these contacts. NOTE: When these terminals are not in use, a jumper

must be connected across them.
C “DRY2” NC Operates the same as IN2+,IN2- for corresponding terminals. When these

terminals are not in use, a jumper must be connected across them.

+OUT1­+OUT2­+OUT3­+OUT4-

Indicating appliances are connected to these outputs (See Examples in Operation

Section). Each output can supply a maximum load of 2 AMPS and can be

individually programmed for Normal Mode, Temporal Mode, IN>OUT SYNC

Mode, or WHEELOCK SYNC Mode. The outputs can be configured as four

Class "B" circuits, two Class "A" circuits, or two Class "B" and one Class "A"

circuits. Each Class "A" or Class "B" circuit is 2 Amps. Outputs are controlled

by a designated input (INPUT 1 or 2) as selected by the DIP switch for that

output. NOTE: When the panel has been set to synchronization mode, IN1 is

used for strobe activation and IN2 is used for audible silence. Individual output

control is disabled.
“NC” “C” “NO
(COMMON

Typically used to trigger remote alerts or other reporting appliances. Form “C”

contacts rated 28VDC at 1 AMP.
TROUBLE
OUTPUT)
C “FAULT” NC
(COMMON
TROUBLE

Typically used to report AC or BAT Fail. An open circuit across this pair of

terminals will cause IN1 and IN2 to simultaneously signal a trouble condition to

the FACP.
INPUT)

- AUX + This output is capable of 50mA and can be reset by a momentary switch on the

logic board or can be reset remotely by using the NO “REMOTE”C terminals.
NO”REMOTE”C Dry contact closure on these terminals causes –AUX+ output to reset.

+BAT- Stand-by battery input. Use two 12VDC batteries connected in series for 24VDC

operation, or a single 12VDC battery for 12VDC operation.
BAT FAIL
NO, C, NC

Form “C” dry contacts used to signal low battery or loss of battery voltage. With

attery voltage present terminals NO, C are open, terminals C, NC are closed.
With no battery voltage present terminals NO, C are closed, terminals C, NC are
open. Form “C” contacts rated at 28VDC at 1 AMP.

AC FAIL
NO, C, NC

Form “C” dry contacts used to signal loss of AC voltage. With AC present
terminals NO, C are open, terminals C, NC are closed. With no AC present
terminals NO, C are closed, terminals C, NC are open. Form “C” contacts rated
at 28VDC at 1 AMP

P83862 M Sheet 5 of 23

Figure 2:

Terminal Locations

N

B
A

C

13

14

T

C

F
A

N

I

L

O

N

A

C

C

C

F
A

N

I

L

O

D

A

E

C

L

T

A

R

Y

O

O

U

P

B

T

L

I

E

O
N

OPEN = 24V SW1 CLOSED = 12V

J1

SW2

DC

SW1

10 11

_

AUX

NO "REMOTE" C

+

AUX
RESET

+

DC

+

BAT

-

AC

AC

AC

12

_

DC

+

ON

ON

ON

OFF

4

3

2

1

4

3

2

1

OUT1

INPUT SELECT

TEMPORAL
STROBE SYNC
IN>OUT SYNC

OUT2

INPUT SELECT

TEMPORAL
STROBE SYNC
IN>OUT SYNC

1

OUT3

OUT4

ON

ON

ON OFF

3

4

3

2

1

OUT1

4

3

2

1

INP1

5

OUT2

INP2

OUT3

OUT4

FAULT

C
N
"
T

L
U
A
F

"
C

O
N

C

C
N

9

8

+

OUT1

+

OUT2

_

+

OUT3

_

_

7

+

OUT4

_

_

IN1

IN1 IN2

+

RET1

_

RET1

+

2

+

RET2

IN2

+

4

_

RET2

C "DRY1" NC

_

C "DRY2" NC

6

UPPER

LOWER

P83862 M Sheet 6 of 23

1.5 LED STATUS

Table 2 lists status of the LED indicators. The ALARM condition occurs when the input causes the output circuits to energize.
TROUBLE condition occurs when the circuit is no longer supervised correctly. NOTE: An alarm condition overrides a trouble
condition.

Table 2: LED Status Description

LED

Logic Board

OUT1 STANDBY ALARM TROUBLE
OUT2 STANDBY ALARM TROUBLE
OUT3 STANDBY ALARM TROUBLE
OUT4 STANDBY ALARM TROUBLE
INP1 STANDBY ALARM TROUBLE
INP2 STANDBY ALARM TROUBLE
FAULT -------- TROUBLE --------

Power Supply Board

AC No AC AC Present -------­DC No DC DC Present --------

1.6 BATTERY MAINTENANCE

Battery Replacement: Power-Sonic (or equal) 12VDC, replace with new batteries every four (4) years or as needed if battery will
no longer accept full charge. Two 12V batteries are required for 24VDC setting. Use either a 7AH battery for 5 minutes of alarm
or a 12AH battery for 15 minutes of alarm.

NOTE: Battery compartment measures 4-1/2" High X 11-1/2" Wide X 4-1/2" Deep.

2.0 INSTALLATION INSTRUCTIONS

NOTE: The PS-12/24-8 POWERPATH shall be installed in accordance with the National Electrical Code (NEC) and all

applicable state and local regulations.

2.1 UNPACKING

The POWERPATH was carefully checked before leaving the factory. Inspect shipping container and unit carefully for
indications of improper handling. If damage is detected, make an immediate claim to the carrier.

Remove the POWERPATH from the shipping container and check that the door lock keys, door lock, and battery connection
wires are inside. Make sure the transformer, Power Board and Logic Board are securely mounted to the rear of the enclosure.

2.2 MOUNTING

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS UNIT TO RAIN

OR MOISTURE.

CAUTION: This product is not intended for use in hazardous locations as defined by the National Electrical Code (NEC) and

by the National Fire Protection Association (NFPA).

Mount the POWERPATH in the desired location using the mounting dimensions in Figure 3.

Mount the panel in a location that does not exceed a temperature range of 0° C to 49° C (32° F to 120° F) and a humidity equal to
10% to 85% at 30° C (86° F) non-condensing.

When mounting on interior walls, use proper screw anchors in plaster. When mounting to concrete, especially when moisture is
expected, first attach a piece of ¾ inch plywood to the concrete surface. Attach the POWERPATH to the plywood.

CAUTION: The POWERPATH panel shall be mounted in a location within the environmental limits specified in the latest

UL Standard for indoor control panels.

OFF

ON

Blinking

-------- -------- --------

P83862 M Sheet 7 of 23