Tender For annual maintenance & operation of hvac and refrigeration system at parliament house, new delhi. (during-2025-26). (sh: routine maintenance of ahu electrical panels, blower motors, chilled water/dewatering/drinking water pump sets, remote control panel, air curtains, air purifiers & water dispensers).subwork/packages:routine maintenance of ahu electrical panels, blower motors, chilled water/dewatering/drinking water pump sets, remote control panel, air curtains, air purifiers & water dispensers.