Airlight AL-EPC-2 Auxiliary Power Loss Sensor Owner’s Manual

Airlight AL-EPC-2 Auxiliary Power Loss Sensor

OWNER’S MANUAL

Application

UL924 Listed Emergency Power Control EPC-THPH, is a 3 phase power loss sensing device with Form C Dry Contact.

Fire Alarm / Remote Test Switch – Some applications demand that emergency lighting be activated upon fire alarm, security alarm, or remote test switch activation. The EPC-THPH is equipped with a low voltage override input (red jumper). https://www.lvscontrols.com/blog/ul92fai

Three Phase Sensing – Can be selected to sense 1 or 3 phase normal power systems for interruption.

IMPORTANT SAFEGUARDS !

WHEN USING ELECTRICAL EQUIPMENT, BASIC SAFETY PRECAUTIONS SHOULD ALWAYS BE FOLLOWED, INCLUDING THE FOLLOWING:

READ AND FOLLOW ALL SAFETY INSTRUCTIONS

1. This product is an auxiliary UL924 device, meant to signal other systems of a loss of normal power.
2. Make sure all connections are in accordance with the National Electrical Code and local regulations.
3. To reduce the risk of electric shock, disconnect both normal and emergency power supplies before servicing.
4. This product is intended to be used to control indoor and outdoor located loads.
5. An unswitched AC power source is required (120-240VAC/277VAC).
6. Do not install near gas or electric heaters.
7. Do not attempt to service a sealed Emergency Power Control. When malfunctioning, return to the manufacturer: LVS, Inc. 2555 Nicholson Street, San Leandro, CA 94577.
8. The use of accessory equipment is not recommended by the manufacturer and may cause unsafe condition.
9. Do not use this product for other than its intended use.
10. Servicing should be performed by qualified service personnel.
11. Equipment should be mounted in locations and at heights where it will not readily be subjected to tampering by unauthorized personnel.

Small Form Factor

Dry Status Contact – Form C dry contact permits interconnection with BMS and other systems indicating the state of the emergency system and normal power.

Recommended Box Size 4-11/16” with extension (total depth 4” minimum)

Electrical Specfications| 120-240/277v 50/60Hz Sensing Input
Auxiliary Form C Contact 120VAC-277VAC 50/60Hz
8A Ballast/General, 3A LED, 600W Tungsten
---|---
Mechanical Specfications| EPC-3PH Installs in 4-11/16” junction box with extension and single gang plaster ring

Wiring Diagram #1 (Suggested):

A three phase sensing module sends a dry contact signal to another system upon loss of 1 or more phases of normal power.

Note: Dry status contact is shown in emergency state. It can be used for BMS and other remote control purposes. If unused, cap #7,8,9 leads.

Note: if only 1 phase sensing is required, connect orange, brown, and yellow wires together – or use LVS model RRU-UNV.

Note: if emergency power is unavailable – normal power may be hooked up to #1/#2.
However, red LED will not supervise EM power.

Note: When blue wire is un-cut there is a 2.5 second time delay when normal power is restored before dry status contact changes staets. Cut blue jumper and cap o leads to disable time delay.

Installation

In order to install the EPC in accordance with national/local code requirements, a qualified electrician should review & understand the installation instructions. Check voltage & current requirements. Verify & lock out circuit breakers on both regular (utility) power & 24 hour emergency generator or inverter circuit. Install a self-adhesive 2″ x 3″ caution label in each fixture or load controlled by an EPC cautioning that the load is supplied from 2 different power sources, normal & emergency. Review wiring diagram & connect wires, one at a time, in accordance with the numeric identification.

Setup/Programming

Turn on Normal/Emergency power sources.

Initial Testing

In order to test that the wires are connected correctly, without any inconvenience to occupants, do not turn off regular (utility) power off until you have checked each device as follows:

1. Check that regular branch circuit breaker is connected & utility power is available. Green LED on If green LED is not lit, check connections & continuity to branch circuit breaker. If using 3 phase sense mode, ensure power is applied to all 3 phases. If using 1 phase only, connect Orange Brown Yellow wires together.
2. Check that emergency branch circuit breaker is connected & emergency power is available. Red LED should be lit.
3. If red LED is not lit, check connections & continuity to emergency branch circuit breaker.
4. Emergency Operation Test: Press and hold test button, dry contact should change position.

Maintenance

No maintenance is required to keep the EPC functional. However, regular testing should be performed when the lamps or ballasts have been replaced or when remodeling has taken place.

Specifications:

• Product Name: 3-PHASE POWER LOSS SENSOR

• Model: EPC-THPH

• Electrical Specifications:

  • Sensing Input: 120-240/277v 50/60Hz
  • Auxiliary Form C Contact: 120VAC-277VAC 50/60Hz 8A
    Ballast/General, 3A LED, 600W Tungsten

• Mechanical Specifications:

  • Installs in 4-11/16 junction box with extension and single gang plaster ring

FAQ:

Q: What should I do if emergency power is unavailable?

A: In such a case, normal power may be hooked up to specific terminals (#1/#2), but please note that the red LED will not supervise emergency power.

Q: How can I disable the time delay feature?

A: Cut the blue jumper wire and cap the leads to disable the time delay. This will result in immediate change of status without any delay when normal power is restored.

Q: How can I connect for single-phase sensing?

A: If only 1 phase sensing is required, connect the orange, brown, and yellow wires together or use LVS model RRU-UNV for easier setup.

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