Appendix C

Checking System Wiring

Overview

Using the Volt/ Ohm Meter

This appendix contains instructions on how to use a volt/ohm meter to check system wiring.

When using the volt/ohm meter to check each circuit, make sure to adhere to the notes and instructions below.

A. No Voltage

B. Open Circuit

Notes:

•Ensure that no power is applied to the 4100U-S1 fire alarm panel and that all wiring is properly connected (terminal blocks, LED/switch module ribbon cables, etc.).

•Use the earth stud in the control panel for all measurements to ground.

•Each circuit must test free of all grounds and extraneous voltages.

Use the volt/ohm meter as described in the steps below to check each circuit type.

1.At the control panel, locate wires from each initiating device or indicating appliance circuit.

2.Check each circuit for extraneous voltage by setting the volt/ohm meter to 300VAC. Place the meter probes so that the black probe is on the “-” wire and the red probe is on the “+” wire. Meter readings must show 0 volts (see Figure C- 1A).

3.Set the volt/ohm meter to 60 VDC and repeat step 2. The meter must read 0 volts (see Figure C-1A).

4.Set the volt/ohm meter to OHMS x 10 and place the meter probes as described in step 2. Check the circuits using the resistance measurements in Table C-1. Locate and correct any abnormal conditions at this time. Note: If the reading indicates an open circuit in an initiating circuit, make sure the smoke detector heads are properly mounted and seated. The circuit may be open if smoke detector power is not present, and if separately powered 4-wire devices are used.

5.Check all other system wiring to verify that each circuit is free of grounds and extraneous voltages.

C. Short Circuit

Figure C-1. Volt/Ohm Meter Readings

Continued on next page

C-1

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Tyco 4100U-S1 installation manual Appendix C Checking System Wiring, Figure C-1. Volt/Ohm Meter Readings
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4100U-S1 specifications

The Tyco 4100U-S1 is a sophisticated and robust fire alarm control panel known for its reliability and advanced features, catering primarily to commercial and industrial applications. This system represents the latest in fire safety technology, providing comprehensive protection for a wide range of environments.

One of the main features of the Tyco 4100U-S1 is its ability to support advanced signaling protocols. This capability allows for seamless communication with a variety of initiating devices and notification appliances, ensuring a rapid response to potential fire incidents. The control panel can accommodate a significant number of devices connected through its extensive loop options, enhancing its flexibility in larger installations.

The Tyco 4100U-S1 employs Intelligent Addressable Technology, which simplifies the installation process and reduces wiring complexity. Each device on the loop can communicate its status without needing additional wiring, making it easier to troubleshoot and maintain. This feature not only enhances the system's efficiency but also helps to minimize installation costs.

Another notable characteristic of the Tyco 4100U-S1 is its user-friendly interface. The panel is designed for ease of use, featuring intuitive controls and a clear display that allows users to monitor the system’s status quickly. The graphical interface provides real-time information about the system’s performance, giving users insight into alarm conditions and system health. This accessibility aids in training personnel and encourages adherence to safety protocols.

The Tyco 4100U-S1 also boasts advanced reporting capabilities, with programmable inputs and outputs that allow for detailed event logging and alarm management. The system can be configured to send notifications via various channels, ensuring that key personnel are alerted immediately in case of an emergency. This proactive approach to fire safety helps organizations mitigate risks and enhance response strategies.

In addition, the Tyco 4100U-S1 integrates well with other building management systems, supporting various communication protocols that facilitate interoperability. This integration capability allows users to create a comprehensive safety network that addresses not only fire protection but also other critical building functions.

Overall, the Tyco 4100U-S1 stands out in the fire alarm control panel market with its combination of advanced technology, intuitive design, and extensive flexibility, making it an ideal choice for organizations seeking robust fire safety solutions. Its features and characteristics ensure that it remains a top contender in enhancing life safety and property protection.
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