Ensure proper operation of valve handles and sufficient space for valve installation.Below precise procedure will help you understand the sequence of installation.Check the AHUs foundation and ensure it is as per approved drawings.Check the area around the foundation and ensure access to the Air Handling Unit from all sides as applicable.
Ensure availability of sufficient slope to the drainpipe, for easy draining of condensate drain. Place the anti vibration ribbed rubber pads of correct thickness as per approved drawingssubmittals. In case of multiple rubber pads the pads shall be placed one above the other, with the ribs at right angle to each other. AHU sections are assembled at sitelocation by factory trained personnel only. Shift the Air Handling Units to the place of installation in safe manner using fork liftcrane as applicable. Ensure that the correct AHU is shifted to the place of installation. Air inlet, outlet, fresh air connection and chilled water connection orientation are as per approved drawings. If the AHUs are shipped in multiple sections, the AHUs will be assembled strictly as per the manufacturers instructions. The AHUs are placed correctly on foundation with vibration isolator rubber pads at right location. AHUs shall be inspected again for any damage during hoistingshifting. Upon satisfactory positioning of AHUs any open airwater outlets of AHUs shall be closed properly and area shall be cleaned, complete protection in areas where other trades are working. Air, Chilled water, Electrical and Condensate Drain connections Ducting connection shall be done as per approved shop drawings. Provide flexible duct connections as applicableas approved submittal. Chilled water connections shall be made as per approved drawings. Ensure supply and return connection is made properly to the air handling unit. Provide pipe flexible connection and other piping accessories as per approved drawings and submittals. Method Statement For Ation Of Air Handling Unit Free Of AnyThe piping shall be free of any strain and shall not exert any load on AHUs. The piping connections to AHUs shall be pressure tested to 1.5 times the working pressures. Strainer shall be cleaned after pressure testing and initial flushing of chilled water piping system. Install the control valves, strainer, commissioning set correctly as per direction of flow as per approved drawings.
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