Book AC Services in Green Park, Delhi

Window AC installation is quick, about 30 to 60 minutes if the window opening or wall cutout is already the right size. If we need to fit a metal support frame, adjust the opening size, or add a wooden plank for support, add another 30 minutes. Unlike split AC installation, there is no piping, vacuuming, or gas work involved. The most time-consuming part is usually sealing the gaps around the unit properly with foam strips and the side panels.

Pure sine wave inverters and generators are perfectly safe for running ACs, as they provide the same clean power waveform as the grid supply. Square wave or modified sine wave inverters can damage the compressor motor windings and PCB over time, so never use them with an AC. Make sure your inverter or generator has at least 50 percent more capacity than the AC's starting wattage, since the compressor draws a surge of 2 to 3 times its running wattage during startup. A 1.5 ton inverter AC needs at least a 2 KVA pure sine wave inverter or a 3 KVA generator for reliable operation. Check with your AC brand whether running on an inverter or generator affects the warranty terms.

When refrigerant is low, the pressure inside the evaporator drops below normal operating levels. This lower pressure means the refrigerant boils at a much lower temperature, often dropping below 0 degrees Celsius. Moisture from the room air condenses on the cold evaporator coil surface and freezes into ice. The ice layer then acts as insulation, blocking airflow and making cooling even worse in a downward spiral. If you see ice on the copper suction line or the indoor unit, turn the AC off for 2 hours to let it melt, then call a technician to check the gas level.

An inverter AC adjusts its compressor speed continuously based on cooling demand, while an on/off AC runs the compressor at full power and shuts it off completely when the temperature is reached. Inverter technology saves 30-50% electricity, maintains more stable room temperature, and produces less noise. For Indian summers where ACs run 8-12 hours daily for 4-5 months, the electricity savings alone recover the Rs 3,000-5,000 price premium within 1-2 years. Inverter ACs also last longer because the compressor faces less startup stress.

First check if the drain pipe is blocked, kinked, or disconnected from the drain tray. Flush the pipe by pouring clean water through the front access point or disconnecting it from the outdoor end. If water continues to drip after clearing the drain, the internal drain tray might be cracked or the evaporator coil could be frosting and melting unevenly. Persistent leaking after drain cleaning needs a technician to inspect the tray and coil.

First we mount the indoor unit bracket on the wall using heavy-duty anchors, then drill a 3-inch hole for piping through the wall. Next we connect the copper pipes between the indoor and outdoor units, do proper flaring at each joint, and run the drain line. After that we pull a vacuum on the system for 15 to 20 minutes to remove moisture and air. Finally we release the refrigerant gas, check for leaks, and do a full test run. The whole job takes 2 to 3 hours for a straightforward setup.

Copper condensers transfer heat roughly 30% more efficiently than aluminium, are far easier to repair when damaged, and handle Indian weather conditions with greater durability. The Rs 3,000-5,000 premium for copper pays off through lower maintenance costs and fewer coil-related problems over the AC's 8-12 year lifespan. Aluminium coils are cheaper but they corrode faster in coastal and humid environments, and a damaged aluminium coil usually needs full replacement rather than spot repair. In any city within 50 km of the coastline, copper coil is the only sensible option for long-term reliability.