Von Duprin PS873 User Manual

941352-00(H) page 1 of 8
For continued protection against risk of fire,
replace fuse F2 with same type and rating.
CAUTION
!
Installation Instructions
PS873 Class 2 Power Supply & 873-FA, 873-BB, 873-KL Options
These instructions cover the following parts:
PS873 Specifications:
PS873: 120VAC, 1.0 Amperes 50/60 Hz
PS873-240: 240VAC, 0.5 Amperes 50/60 Hz
12VDC, 4 Amperes or 24VDC, 2 Amperes
Von Duprin EL compatible - 24VDC, 16 Amp-inrush (0.3 sec.).
When using EL device: 871 option board required - see page 6.
Output protected with 4 A slow blow, 250 V, 1/4” x 1-1/4” fuse (F2)
10” H x 12.5” W x 5.0” D Hinged cover box
19 GA steel, Five 1/2” x 3/4” knockouts total
0-120 degrees F
1. If installing a PS873 with an EL Device, see P.8 of these instructions
and exit device instructions under “optional equipment - EL”.
2. If installing PS873 with a Chexit device, see Chexit instructions.
3. For Canadian applications, the device must be installed in
accordance with Canadian Electrical Code.
Input:
Output:
Enclosure:
Temperature:
Installation Notes:
941352-00
NOTE: During battery backup (873-BB required)
Output Rating: 10.5 - 12 VDC, 4A or 22-24 VDC, 2A
© 2008 Ingersoll-Rand Company Limited

Von Duprin PS873 Specifications

General

Output Voltage	24VDC
Battery Type	Sealed Lead Acid (SLA)
Battery Voltage	12 VDC
Number of Batteries	2
Mounting Type	Wall mount
Battery Capacity	7.0Ah
Operating Temperature	0°C to 49°C
Certifications	UL 294
Output Current	3.0A

Summary

PS873 Power Supply Overview and Specifications

PS873 Power Supply Specifications

Details input, output, enclosure, temperature, and installation notes for the PS873 power supply.

PS873 Power Supply Installation Steps

Mounting the PS873 Power Supply

Instructions for physically mounting the PS873 power supply unit.

PS873 AC Wiring Procedure

Guide for connecting the AC power supply to the PS873 unit.

PS873 Device Wiring and Load Connection

Details on wiring connected devices and output loads to the PS873.

873-BB Battery Backup Installation

Prepare PS873 for 873-BB Installation

Ensure the PS873 AC breaker is open before proceeding with 873-BB installation.

Select Output Voltage for 873-BB

Match the output voltage selection on the 873-BB to the power supply.

Install 873-BB Module onto PS873

Physically install the 873-BB battery backup module onto the PS873 power supply.

Connect Batteries to 873-BB

Connect the 873-BB leads to the batteries, observing correct polarity.

Activate 873-BB Battery Backup

Close the AC breaker to power the 873-BB and verify its operation.

873-FA Fire Alarm Input Board Installation

Prepare PS873 for 873-FA Installation

Ensure PS873 AC breaker is open before installing the 873-FA board.

Modify PS873 for 873-FA Board

Cut the specified hole on the PS873 board edge for 873-FA compatibility.

Configure 873-FA Reset Mode

Configure the 873-FA board for either Automatic or Manual reset operation.

Install 873-FA (Automatic Reset)

Install the 873-FA board onto the PS873 for automatic fire alarm reset.

Connect Fire Alarm Contacts (Automatic Reset)

Wire normally closed fire alarm contacts to the 873-FA.

Activate 873-FA (Automatic Reset)

Restore power and verify the green LED on the PS873.

Install 873-FA (Manual Reset)

Cut E1 and install 873-FA for manual fire alarm reset.

Connect Contacts for 873-FA (Manual Reset)

Wire fire alarm and reset contacts for manual operation.

Activate 873-FA (Manual Reset)

Restore power and momentarily close reset contacts.

871-2 Installation for EL Exit Devices

Prepare PS873 for 871-2 Installation

Ensure PS873 breaker is open before installing the 871-2 board.

Select 871-2 Output Mode

Choose between individual or sequential output modes for the 871-2.

Install 871-2 Board onto PS873

Physically install the 871-2 option board onto the PS873 receptacle.

Wire Inputs and Outputs for 871-2

Connect inputs and outputs according to individual or sequential mode wiring.

Apply Power and Test 871-2 Operation

Apply AC voltage to PS873 and test the connected devices with the 871-2.

873-KL Keylock Option and Troubleshooting

Install 873-KL Keylock Option

Instructions for removing a knockout and installing the 873-KL keylock onto the door.

Troubleshooting PS873 Issues

Diagnose and resolve common symptoms like no output, incorrect voltage, or device failure.