HVAC Building Construction Method Statements

GI Duct are pre-fabricated and longitudinally pre-assembled to a maximum length of 1.2m at the workshop as per the construction schedule enclosed. Preparation/formation of flanges for transverse joints are made at workshop. GI Duct received at site as above shall be joined together on the floor, to form manageable lengths. …

Below is the procedure for the installation of air handling unit which is part of HVAC system. Below precise procedure will help you understand the sequence of installation. Check the AHU’s foundation and ensure it is as per approved drawings. Check the area around the foundation and ensure access to the …

During delivery of materials all Chilled Water Piping material while unloading shall not be dropped, but slowly lowered to the ground. For pipes, wooden supports shall be placed beneath at equal distance. Pipes shall be stacked on a flat surface with adequate supports. End caps of pipes shall be in …

Prior to testing & commissioning ensure that all the sections of the Air Handling Units are thoroughly cleaned. In case units are supplied with per alumna panels, polythene protective film must be peeled off and must be ensured that no traces of film is left loose within the unit. Only …

Installation method statement for Plate Heat Exchanger Unless otherwise specified, all heat exchanger installation  shall be in accordance to  approved shop drawings and contract specifications. Drawing plans, schematics, and diagrams indicate general location and arrangement of Plate Heat Exchanger’s. Install  Plate Heat  Exchanger’s as indicated  unless deviations  to  layout  are approved on …

Pre-Commissioning Procedure Before starting the commissioning activities check and ensure that bypass Terminal Reheat units are installed as per the approved shop drawings and manufacturer’s instructions and approved. Check that sensing grids tubing connection from the grids to the transducers are correct & secure. Check for proper mounting of the …

The Condensate Water Filter (Side Stream/ Multimedia) are compact filtration packages for the removal of grit, airborne particles and scale from cooling tower water in order to avoid system fouling. A licensed and/or trained/experienced plant electrician and millwright-pipe fitter should install this packaged system. Ensure that the concrete pad is …

These instructions relate only to Crane Gem rubber lined Butterfly valves, which are designed and manufactured to provide isolation, or can be used for regulation, of flow of suitable fluids. Valves must be installed into a well-designed system and it is recommended that the system be inspected in accordance with …

Chemical Cleaning will be done to remove the storage and assembly rusting, Protective greases and oils, Mill  scale, Welding slag, Dust, Dirt, Scale and most protective coatings from pipes and other atmospheric or contact erection residue. After completion of chemical cleaning  and  restoration, CS pipes will  be preserved / filled with …