tailieunhanh - Department of Defense Energy Manager’s Handbook phần 6

Năng lượng hiệu quả T-8 đèn có nhiều tốn kém hơn so với T12 đèn, tuy nhiên họ cung cấp 98% như ánh sáng và sử dụng về năng lượng ít hơn 40% khi cài đặt với một chấn lưu điện tử. Chấn lưu điện tử - Khi thay thế đèn huỳnh quang tiêu chuẩn với năng lượng hiệu quả T-8, | for breakdowns. Detailed maintenance procedures for particular machines are often found in the operating instructions. . HVAC System Maintenance To ensure that HVAC systems operate at peak efficiency the maintenance staff should complete the following routine maintenance procedures Check for cooling heating equipment short-cycling Check adjust calibrate and repair all controls such as thermostats controllers and valve and damper operators Adjust zone temperature and air handler unit temperature setpoints to the minimum levels necessary to satisfy occupant or process requirements. Check to ensure that the economizer if so equipped works properly Check the system time clock if so equipped to ensure that the system shuts down during unoccupied periods Replace dirty filters and keep economizer dampers clean Keep all heating and cooling coils clean Eliminate all duct work leaks at joints and flexible connections Keep hot and cold ducts adequately insulated Repair or replace all defective dampers Check adjust or replace fan belts Check fan motor alignment Lubricate all bearings and other friction points such as damper joints Inspect fan wheels and blades for dirt accumulation and clean them as required Adjust or repair packing glands and seals on valve stems and pumps to eliminate leaks of cooling and heating water Ensure that no oil or water enters the main air supply for pneumatic control systems Inspect integrity of chilled water pipe insulation Eliminate all piping leaks and replace insulation if needed Most air-handling units AHUs have both heating and cooling coils. Leaking steam hot water and chilled water valves on those coils and leaky dampers require heating cooling and then reheating of the same air. Proper maintenance eliminates that inefficient use of energy. Leaks or deteriorated insulation on chilled water piping will allow condensation to form with the potential to cause moisture mold problems throughout a facility. Leaks must be repaired and .

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