Overview
Gayatri Aircon is an established HVAC maintenance services and AMC contractor providing comprehensive and non-comprehensive Annual Maintenance Contracts for commercial, healthcare, educational and industrial facilities across North India. We maintain central chillers, VRV/VRF systems, air handling units, cooling towers, and commercial ductable air conditioners.
When this system is the right choice
An Annual Maintenance Contract (AMC) is mandatory for any commercial facility, hospital, hotel, or office where cooling reliability and equipment longevity directly impact business operations. Relying on ad-hoc, on-call breakdown repair is the wrong approach. On-call repairs result in long downtime during peak 45-degree summer heat, inflated spare parts costs, and premature compressor burnout from neglected maintenance.
Between contract types, a comprehensive AMC is the right choice for facility managers who want a predictable annual budget without surprise repair bills. A comprehensive AMC covers all preventive servicing labour, emergency breakdown callouts, and replacement of failed OEM components such as compressors, fan motors, electronic expansion valves, and inverter PCBs. A non-comprehensive AMC is suitable for newer systems under OEM parts warranty or facilities that prefer to approve and purchase replacement spare parts separately.
How we size and design it
We design maintenance contracts by conducting an initial on-site physical health audit of all HVAC assets. We inspect equipment age, brand, compressor operating currents, coil conditions, refrigerant pressures, and electrical panel switchgear. Service frequency is structured around operating hours: continuous 24-hour facilities such as hospitals and data hubs receive monthly preventive inspections, while standard 10-hour corporate offices receive quarterly visits.
Common mistakes in AMC selection include choosing the lowest-bid vendor who only washes air filters with tap water and ignores electrical terminal torqueing, superheat verification, and vibration checks. Neglecting electrical checks leads to terminal overheating, contactor pitting, and compressor motor burnout. Our engineers establish site-specific maintenance schedules that address critical mechanical wear points before failures occur.
Installation details that matter
Onboarding a facility under AMC begins with creating an asset register, tagging every indoor and outdoor unit with unique asset IDs, and establishing digital service logbooks. Our technicians verify calibration of all safety cutouts, including high-pressure switches, low-pressure switches, oil differential pressure monitors, and phase sequence protectors.
We inspect outdoor unit roof access to ensure safe working conditions and check that technician service clearances meet OEM guidelines. For contracted facilities, we stock critical emergency spare parts (such as contactors, capacitors, fan motors, sensors, and electronic expansion valves) at our regional service branches in Ghaziabad and Haldwani to ensure rapid fault rectification during breakdowns.
Maintenance
Routine preventive maintenance includes pressure-washing outdoor condenser coils, cleaning indoor air filters, chemically flushing condensate drain trays to prevent algae blockage, checking blower belt tension, and re-torqueing electrical terminal screws. Technicians measure compressor operating amperage and log suction and discharge pressures.
During annual major service, technicians perform motor megger insulation testing, inspect chiller tube fouling, descale cooling towers, and check refrigerant charge integrity. Common early failure points caught during preventive maintenance include pitted electrical contactors, loose wiring causing phase drop, clogged drain traps, and outdoor fan motor bearing noise.
Where it is used
Hospitals, corporate office buildings, data server rooms, hotels, manufacturing facilities, and residential multi-split complexes.
What our scope includes
- Quarterly preventive chemical wash of condenser and cooling coils
- Operating current (ampere) and supply voltage monitoring to prevent motor burnouts
- Refrigerant standing and running pressure diagnostics for early leak detection
- Fan motor bearing lubrication and belt tension adjustments
- Dedicated 24/7 emergency hotline for critical hospital and industrial facilities
Typical technical data
| Contract Types | Comprehensive (including spares & compressor) and Non-Comprehensive (labor & maintenance) |
|---|---|
| Preventive Frequency | Scheduled quarterly thorough checkups + monthly filter inspections |
| Breakdown SLA | Emergency breakdown response within the response time agreed in the contract for contract clients |
| Spares Policy | 100% genuine OEM factory parts (Daikin, Blue Star, Voltas, Danfoss) |
| Logbook Records | Detailed pressure, voltage, amperage, and temperature logs maintained on-site |
Figures are typical ranges for equipment we supply. Final selection depends on the heat load calculation and the manufacturer's data for the chosen model.
How we execute it
Survey and heat load
Site measurements and a room-wise load calculation.
Selection and BOQ
Equipment choice, layouts and itemised bill of quantities.
Installation
Equipment, piping, ducting, drains, electrical and controls.
Testing
Pressure test, vacuum, air balancing and performance readings.
Handover
Commissioning report, as-built drawings and operator training.
Maintenance
AMC with scheduled visits and breakdown support.
Frequently asked questions
What is the difference between comprehensive and non-comprehensive HVAC AMC?
A comprehensive AMC covers all preventive servicing labour, emergency breakdown callouts, and replacement of failed spare parts including compressors, fan motors, PCBs and contactors. A non-comprehensive AMC covers only scheduled servicing and breakdown labour, with replacement spare parts billed separately.
How many preventive maintenance visits are included in an HVAC AMC?
Standard commercial office contracts include four scheduled quarterly preventive maintenance visits per year. Continuous 24-hour operations such as hospitals, data hubs, and hotels receive twelve monthly visits plus regular filter inspections to ensure continuous equipment performance and early detection of mechanical wear before major component failures occur.
Do you take AMC for air conditioning systems installed by another contractor?
Yes. We conduct a preliminary on-site technical audit to assess equipment condition, operating refrigerant pressures, electrical switchgear integrity, and past maintenance history. Based on the audit findings, we submit an inspection report with corrective recommendations and offer an AMC agreement tailored to the specific needs of the facility.
What tasks are performed during a routine preventive HVAC service visit?
Technicians wash air filters, pressure-clean outdoor condenser coils with chemical coil cleaners, flush condensate drain pans and drain traps, tighten electrical terminal screws, check fan motor bearings, inspect blower belts, and measure compressor operating currents, suction pressure, and discharge pressure during each routine service visit.
What brands of commercial air conditioning does Gayatri Aircon service under AMC?
Gayatri Aircon is an authorized HVAC maintenance services and AMC contractor supporting Daikin, Voltas, Carrier, Blue Star, Hitachi, LG and other leading commercial brands. We use genuine OEM replacement parts, approved refrigerants, and factory diagnostic protocols to protect equipment life and energy efficiency.
How quickly do service technicians respond to an unexpected AC breakdown?
AMC agreements define clear priority response turnaround times for unexpected cooling breakdowns. Dedicated service vans and certified HVAC technicians stationed at our Ghaziabad corporate office and Haldwani branch are dispatched to inspect and resolve faults within agreed contract hours, keeping downtime to an absolute minimum.