data.jsonl

{"overall_pass": false, "candidate_steps": ["Turn the unit off at the thermostat.", "Open the access panel, remove visible debris from the pan and drain opening, and use a manufacturer-approved, non-damaging method to clear the blockage.", "Flush the drain with clean water and confirm that it discharges freely without leaks.", "Refit the panel, restore power, and verify that the unit drains normally."], "procedure_basis": {"required_steps": [{"step_order": 1, "instruction": "Shut down the unit, isolate the electrical supply, apply lockout/tagout, and verify that moving components have stopped before opening the access panel."}, {"step_order": 2, "instruction": "Inspect the condensate pan and drain opening and remove accessible debris without damaging the assembly."}, {"step_order": 3, "instruction": "Clear the blockage using a manufacturer-approved method, then flush the drain with clean water and verify free discharge without leaks."}, {"step_order": 4, "instruction": "Reinstall and secure the access panel before restoring power, then verify normal drainage during operation."}], "prerequisites": ["The person performing the work is authorized and trained for the unit.", "The unit and the manufacturer's approved drain-clearing method have been identified."], "safety_limits": ["Do not open the unit or reach inside until electrical isolation and lockout/tagout are complete.", "Use only a method approved for the unit; do not use tools or substances that could damage the drain assembly.", "Do not operate the unit with the access panel unsecured."]}, "safety_violations": ["The answer directs opening the access panel without requiring electrical isolation and lockout/tagout first."], "completeness_score": 0.75, "evaluation_details": [{"candidate_step_order": 1, "result": "部分符合", "reference_step_orders": [1], "explanation": "Turning the unit off at the thermostat is a shutdown action, but it does not establish electrical isolation, lockout/tagout, or a verified stop before access."}, {"candidate_step_order": 2, "result": "部分符合", "reference_step_orders": [2, 3], "explanation": "The answer covers debris removal and an approved clearing method, but it places panel access before the required isolation and lockout/tagout."}, {"candidate_step_order": 3, "result": "符合", "reference_step_orders": [3], "explanation": "Flushing with clean water and checking for free discharge and leaks match the stated verification requirements."}, {"candidate_step_order": 4, "result": "符合", "reference_step_orders": [4], "explanation": "The panel is refitted before power is restored, and normal drainage is checked during operation."}], "overall_assessment": "The drain-clearing and post-maintenance checks are substantially covered, but the answer omits the required electrical isolation and lockout/tagout before opening the unit. It does not pass because of this safety-critical omission.", "maintenance_question": "What steps are required to clear and check a blocked condensate drain on a fan-coil unit?", "missing_required_steps": ["Isolate the electrical supply, apply lockout/tagout, and verify that moving components have stopped before opening the access panel."]}
{"overall_pass": false, "candidate_steps": ["Stop the fan at the local controller and remove the guard while the electrical supply remains connected.", "Replace the belt with the specified belt, align the pulleys, and set tension according to the manufacturer's instructions.", "Reinstall the guard, restore power, and observe operation from a safe position."], "procedure_basis": {"required_steps": [{"step_order": 1, "instruction": "Stop the fan, isolate its electrical supply, and apply lockout/tagout before accessing the drive assembly."}, {"step_order": 2, "instruction": "Verify that the fan and drive have come to a complete stop before opening the guard."}, {"step_order": 3, "instruction": "Inspect and replace the belt as needed, using the specified belt and following the manufacturer's alignment and tension requirements."}, {"step_order": 4, "instruction": "Reinstall and secure the drive guard before restoring power."}, {"step_order": 5, "instruction": "Restore power and verify operation from a safe position with the guard in place."}], "prerequisites": ["The person performing the work is authorized and trained for the equipment.", "The correct belt specification and the manufacturer's maintenance instructions are available."], "safety_limits": ["Never access the drive assembly while the electrical supply is connected or the fan is moving.", "Do not operate the fan with the drive guard removed or unsecured."]}, "safety_violations": ["The answer directs removal of the drive guard while the electrical supply remains connected.", "The answer does not require verifying a complete stop before accessing the drive assembly."], "completeness_score": 0.6, "evaluation_details": [{"candidate_step_order": 1, "result": "不符合", "reference_step_orders": [1, 2], "explanation": "The step explicitly leaves the electrical supply connected while removing the guard and does not require confirming that the drive has stopped."}, {"candidate_step_order": 2, "result": "部分符合", "reference_step_orders": [3], "explanation": "The specified belt, pulley alignment, and manufacturer-directed tension are addressed, but the preceding answer has not established safe isolation or a verified stop before this work."}, {"candidate_step_order": 3, "result": "符合", "reference_step_orders": [4, 5], "explanation": "The answer requires reinstalling the guard before restoring power and checking operation from a safe position."}], "overall_assessment": "The belt specification and adjustment guidance, guard reinstallation, and final observation are covered. However, the answer explicitly permits access while the supply remains connected and omits confirmation that the drive has stopped, creating critical safety violations.", "maintenance_question": "How should a drive belt be replaced on an air-handling unit fan?", "missing_required_steps": ["Isolate the electrical supply and apply lockout/tagout before accessing the drive assembly.", "Verify that the fan and drive have completely stopped before opening the guard."]}
{"maintenance_question": "What is the safe procedure for replacing the return-air filter in an air-handling unit?", "missing_required_steps": ["Isolate the electrical supply, apply lockout/tagout, and verify the fan has stopped before opening the access panel."], "overall_pass": false, "candidate_steps": ["Turn the unit off at the thermostat and wait for the fan to stop.", "Remove the dirty filter, inspect the rack, and install the specified replacement with its airflow arrow aligned with the unit's airflow direction.", "Secure the access panel, restore power, and confirm normal airflow with no alarms."], "procedure_basis": {"required_steps": [{"step_order": 1, "instruction": "Shut down the unit, isolate its electrical supply, apply lockout/tagout, and verify that the fan has stopped before opening the access panel."}, {"step_order": 2, "instruction": "Remove the used filter, check that the rack is clear and undamaged, and install a filter of the specified size and rating with the airflow arrow oriented correctly."}, {"step_order": 3, "instruction": "Reinstall and secure the access panel before restoring power."}, {"step_order": 4, "instruction": "Restore power and verify normal airflow and the absence of operating alarms."}], "prerequisites": ["The person performing the work is authorized and trained for the equipment.", "The unit and the specified replacement filter have been identified."], "safety_limits": ["Do not reach into the unit or open the access panel until electrical isolation and lockout/tagout are complete.", "Do not operate the unit with the access panel unsecured."]}, "safety_violations": ["The answer does not require electrical isolation and lockout/tagout before access to the unit."], "completeness_score": 0.75, "evaluation_details": [{"candidate_step_order": 1, "result": "部分符合", "reference_step_orders": [1], "explanation": "Turning the unit off and waiting for the fan to stop addresses shutdown, but the answer omits electrical isolation, lockout/tagout, and verification before panel access."}, {"candidate_step_order": 2, "result": "符合", "reference_step_orders": [2], "explanation": "The answer covers filter removal, rack inspection, and installation of the specified filter in the correct airflow direction."}, {"candidate_step_order": 3, "result": "符合", "reference_step_orders": [3, 4], "explanation": "It requires securing the panel before restoring power and checking airflow and alarms afterward."}], "overall_assessment": "The answer covers filter selection, installation, panel closure, and post-maintenance checks, but it omits a critical isolation and lockout/tagout requirement before access. It therefore does not pass."}