Preventive Guide 01

Industrial & Home UPS Systems Maintenance

Regular maintenance ensures continuous 0ms switching and protects sensitive electronics during sudden grid outages in Coimbatore.

1. Keep Ambient Temperature Controlled (20°C - 25°C): High room heat drastically shortens UPS internal component and battery life. Ensure ventilation fans are unblocked.
2. Monthly Dust Cleaning: Vacuum cooling fan grilles and air intakes to prevent dust accumulation on IGBT heat sinks and circuit boards.
3. Quarterly Battery Float Voltage Test: Check that individual battery float voltages read between 13.5V to 13.8V DC per 12V block.
4. Test Manual Bypass Switch: Periodically verify that the maintenance bypass switch operates cleanly without dropping load.

Preventive Guide 02

Inverter & Tubular Battery Care Manual

Proper battery care extends backup runtime and prevents premature plate sulfation or cell failure.

1. Distilled Water Topping: Check water level indicators every 45 to 60 days. Top up only with pure distilled water when float level drops to the red mark. Never use tap water or acid!
2. Terminal Corrosion Prevention: Clean lead battery terminals using warm water and a wire brush to remove white acid crust. Apply a thin layer of petroleum jelly or terminal spray.
3. Check Specific Gravity: Use a hydrometer to verify specific gravity readings. Fully charged cell = 1.240 to 1.280; discharged cell < 1.150.
4. Keep Battery Top Dry & Clean: Wipe top surface to prevent micro-current leakage between positive and negative posts.

Preventive Guide 03

Maintains precise ±1% output voltage control and protects industrial motors, CNC machines, and home mainlines.

1. Inspect Carbon Brushes Every 6 Months: Check carbon rollers for even wear along the variac surface. Replace worn brushes before metallic contact occurs.
2. Clean Variac Winding Surface: Carefully clean copper variac tracks with a soft dry cloth or isopropyl alcohol to remove carbon dust.
3. Lubricate Drive Mechanism: Apply high-grade lubricant to servo motor drive chains, gears, and shaft bearings annually.
4. Check Output Cut-off Relays: Verify that high-voltage (>270V) and low-voltage (<170V) trip mechanisms operate instantly.

Preventive Guide 04

Regular solar array maintenance boosts daily power generation by up to 25% and maintains system ROI.

1. Bi-Weekly Panel Cleaning: Wash dust, bird droppings, and industrial soot off glass surfaces using clean water and a soft micro-fiber squeegee. Wash early morning or dusk when panels are cool to avoid thermal glass shock.
2. Inspect Mounting Structure Bolts: Check roof mounting brackets and galvanization for wind stability after heavy monsoon rains.
3. Monitor Inverter Generation Logs: Check daily solar generation figures on your solar inverter LCD screen or mobile monitoring app.
4. Annual Electrical Wire Check: Inspect MC4 connectors, DC isolator switches, and surge protection devices (SPD).

Preventive Guide 05

Prevents hard water scale blockage and guarantees hot water throughout winter and monsoon months in Coimbatore.

1. Annual Descaling of Vacuum Tubes / Collectors: In hard water areas, flush internal glass ETC tubes or flat plate copper risers with mild food-grade citric acid solution to dissolve calcium scale.
2. Replace Magnesium Sacrificial Anode: Check and replace the internal anti-corrosion magnesium rod every 12 to 18 months.
3. Clean External Collector Glass: Wipe collector glass clean from dust to ensure maximum solar radiation absorption.
4. Inspect Air Vent & Relief Valve: Ensure top air vent pipe is open and unblocked to prevent vacuum pressure buildup in hot water storage tanks.