Parker HDK-CNG Series Operating Manual

Contents

Parker HDK-CNG Series Operating Manual Manual pdf 32 page image

Requirements for initial start-up32 HDK-CNG_EN_03_2016CommissioningOn no account place the dryer into service or take the dryer out of servicewithout inerting it beforehand!Together with air, gaseous natural gas can form an explosive gas mixtureand therefore poses a considerable danger. An explosive atmosphere canbuild up especially during commissioning and when replacing the dryingagent. To avoid this, the dryer must be purged with inert gas both beforeplacing into service well as before taking out of service (e.g. beforemaintenance).Hazard caused by escaping gas!Never remove any parts of the dryer, or manipulate the same in any way,for as long as the plant is still running! Any sudden escape of gas canlead to combustible atmospheres in the area surrounding the dryer.Before carrying out any work on the dryer, first depressurise the plant.Requirements for initial start-upAttention!The dryer must be taken into operation by trained personnel only!Untrained personnel does not have the required knowledge. Suchpersonnel might cause serious faults.Note:You can order the initial commissioning and start-up from themanufacturer and have your personnel trained by the manufacturer.For the first start-up the following preconditions must have been met: The line network must be kept free of contamination. All shutoff valves and customer-installed natural gas inlet and outlet valves areclosed. Carry out all prescribed tests and checks. Before start-up, ensure that no tools or other foreign parts have been left lyingin a part of the dryer where they might pose a hazard to the dryer being startedup. Do not modify the factory settings of the control system in any way without priorconsultation with the manufacturer. The dryer is correctly sited and installed.