Storage Temperature, Batteries | Cooper Lighting Lifeway II Series

C H A P T E R 2

Environment

Make sure the environment is a clean, cool, dry place with normal ventilation.

Storage Temperature

Store the batteries (in the system or battery cabinet) at -18 to 40°C (0 to 104°F). Batteries have a longer shelf life if they are stored below 25°C (77°F). Keep stored batteries fully charged. Recharge the batteries every 90–120 days. The system or battery cabinet without batteries may be stored at -20 to 70°C (-4 to 158°F).

Ventilation

The air around the unit must be clean, dust-free, and free of corrosive chemicals or other contaminants. Do not place the system or batteries in a sealed room or container.

Operating Temperature

System can operate from 20° to 30°C (68° to 86°F) and up to 95% relative humidity. The batteries’ service life is longer if the operating temperature stays below 25°C (77°F).

Batteries

The temperature should be near 25°C (77°F) for optimum battery performance. Batteries are less efficient at temperatures below 18°C (65°F), and high temperatures reduce battery life. Typically, at about 35°C (95°F), battery life is half of what it would be at a normal temperature of 25°C (77°F). At about 45°C (113°F), battery life is one-fourth of normal.

Make sure that heaters, sunlight, air conditioners, or outside air vents are not directed toward the batteries. These conditions can make the temperature within battery strings vary, which can cause differences in the batteries’ voltages. Eventually, these conditions affect battery performance.

If the batteries are not in the system, remember that the batteries should be installed as close as possible to the unit to reduce DC wiring costs and improve battery performance.

Do not allow tobacco smoking, sparks, or flames in the system location because hydrogen is concentrated under the vent cap of each cell of the battery. Hydrogen is highly explosive, and it is hard to detect because it is colorless, odorless, and lighter than air.

Every type of battery can produce hydrogen gas, even sealed maintenance-free batteries. The gas is vented through the vent caps and into the air, mainly when the unit is charging the batteries. The batteries produce the most hydrogen when maximum voltage is present in fully charged batteries; the batteries do not produce hydrogen during float charging. The amount of current that the charger supplies to the batteries (not the battery ampere-hour) determines how much hydrogen is produced.

High Altitude Operation

The maximum operating ambient temperature drops 1°C per 300m (2°F per 1000 ft) above sea level. Maximum elevation is 3000m (10,000 ft).

6	113904 – System Users Manual

Lifeway II Series specifications

Cooper Lighting's Lifeway II Series represents a significant advancement in innovative lighting solutions designed for educational, institutional, and commercial settings. Building on the success of its predecessor, the Lifeway II series is engineered to deliver optimal performance, energy efficiency, and improved aesthetics for a variety of applications.

One of the most notable features of the Lifeway II Series is its exceptional energy efficiency. Utilizing advanced LED technology, these fixtures provide significant energy savings compared to traditional lighting solutions. The series is designed to meet or exceed energy codes, making it an environmentally friendly choice while also reducing operational costs for facilities.

The Lifeway II Series presents a range of lumen outputs and distribution patterns, allowing for versatile applications in various environments. With options for both recessed and surface-mounted installations, the series can be easily integrated into new constructions or retrofitted into existing spaces. Whether illuminating classrooms, hallways, or offices, the series offers tailored solutions to meet specific lighting needs.

In terms of technological advancements, the Lifeway II Series features advanced driver technology that ensures high efficiency and long-lasting performance. The fixtures have a rated lifespan of over 50,000 hours, which significantly reduces maintenance costs and disruptions associated with frequent bulb replacements. Moreover, the optional controls and sensor compatibility further enhance flexibility, enabling facilities to optimize their lighting conditions based on occupancy and daylight availability.

Aesthetically, the Lifeway II Series is designed with modern architectural trends in mind. The fixtures boast a sleek, unobtrusive design that blends seamlessly with contemporary interiors. Available in various color temperatures, the series allows users to choose the most suitable light quality for their space, promoting comfort and productivity.

Another essential characteristic of the Lifeway II Series is its commitment to safety and reliability. The fixtures comply with industry standards and are built to withstand the rigors of everyday use in high-traffic environments. Additionally, the series includes options for emergency lighting, ensuring that safety remains a top priority even during power outages.

In conclusion, the Cooper Lighting Lifeway II Series stands out as a leading choice for modern lighting solutions. With its focus on energy efficiency, advanced technology, versatile applications, and appealing design, it meets the diverse needs of educational and commercial facilities, setting a new standard for quality and performance in the lighting industry.