74. Causes of pressure fluctuations at the smoke extractor inlet
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74. Causes of pressure fluctuations at the smoke extractor inlet
Regenerator pressure control failure； The double-acting spool has lost control ； The inlet control valve is faulty, causing frequent fluctuations ； Large-scale leakage in the range hood ducts ； External heat exchanger leakage.
Regulator pressure control failed; the double-acting slide valve lost control; the inlet control valve malfunctioned, causing frequent fluctuations; there was a large-scale leak in the flue gas ducts; the external heat exchanger was leaking.