Bids are hereby invited for the following: Servicing and maintenance of air conditioners. Specifications: • Clean evaporator coil; • Clean condensing coil; • Clear drain outlets; • Check condenser fan motor; • Check evaporator fan motor; • Check and clean fan blades; • Check electricals; • Check thermostat and calibrate if necessary; • Check refrigerant; • Check selector switch; • Check compressor for efficiency; • Clean filter; • De-rust where necessary and treat; • De-rust and paint outer case where necessary; • Run and test operation of unit; • Attach the maintenance record sticker; • Re-gas the unit. Quantity and type of air conditioners: • Console unit type – 64; • Mid-wall split unit type – 46; • Cassette unit type – 15. (投標 №110456188cn)