모든 HVAC 문서
HVACR 기능사는 단일 테스트를 사용하여 기능이나 프로세스에 대한 통과 또는 실패를 판정하는 경우가 거의 없습니다. 그들은 응축 장치로 걸어가서, 소리를 듣고, 콘덴서 배출 공기 위에서 손을 흔들고, 흡입 라인, 액체 라인 및 배출 라인을 잡습니다(그리고 그렇게 하지 않았기를 바랍니다). 이 모든 것이 도구 박스를 열기도 전에 일어납니다.
이 사용 방법 가이드에서는 덕트 트래버스를 수행하는 이유와 방법, 측정 장치를 삽입하는 방법 및 측정을 수행하는 단계별 프로세스를 설명합니다. 팁과 추가 자료가 포함되어 있습니다.
975는 10가지 기본 IAQ 매개변수를 수집합니다. 온도, 습도, 이슬점 온도, 웹 전구 온도, 이산화탄소, 일산화탄소, 공기 속도, 공기 부피 및 실외 공기의 백분율(온도 또는 CO2 에서 계산). 이 응용 지침서에서는 이러한 매개변수와 975의 관련 기능을 검토합니다. 자세한 내용은 Fluke HVAC/IAQ 라이브러리의 다른 응용 지침서를 참조하십시오.
에너지 독립성 및 재생 가능 에너지원에 대한 추진으로 HVAC 기술자는 태양광 시스템 문제를 해결하는 방법을 알아야 합니다.
큰 절감 포인트는 HVAC 시스템을 가동하는 데 사용되는 장비(모터, 냉각기, 보일러 등)의 효율성입니다.
Harmonics-Understanding, measuring, and interpreting results.From minor control trips to compressor and transformer failures, harmonics can impact every type of HVAC equipment
Why, where, and how to detect carbon monoxide (CO) using a simple tool (Fluke CO-220 Carbon Monoxide Meter)
Boilers and their associated systems are an important part of a modern commercial building's central energy plant. Prevent costly downtime and expensive equipment failures.
In a chiller plant, meeting critical cooling requirements with the Fluke 830 Laser Shaft Alignment Tool: cooling towers, pumps, piping, shaft alignment.
HVAC technology true-RMS meters are essential test tools for accurately measuring and troubleshooting complex HVAC control systems.
One of the possible problems in facilities today is the presence and effects of mold on the indoor environment. Molds are normally present in nature. They reproduce by means of tiny spores that float through the air and are invisible to the naked eye. They can grow on wood, paper, carpet, foods, and insulation - but none of the many types of mold will grow without water or moisture. When excessive moisture accumulates in buildings or on building materials, mold growth will often occur, particularly if the moisture problem remains unaddressed.
Understanding the relationship between dry bulb temperature, wet bulb temperature, relative humidity, and dew point temperature is essential in all facets of air conditioning. These psychrometric processes play an especially important role in building and materials integrity, occupant health and comfort, and overall indoor air quality.
MacDonald-Miller standardized on the Fluke 902 Clamp Meter when it came out several years ago.
When the weather is warm outside, it's imperative to make sure that your building's mechanical cooling systems are working at maximum efficiency.
If chilled water flow is interrupted for even a few minutes the IT server room might overheat and critical computer services could go down. Another vital area is a hospital operating room. In a plant, essential machinery uses chilled water for process cooling. While many plants have excess capacity, much of this capacity is not available at high ambient temperature and high humidity conditions.
Scenarios showing how to prevent system failures and downtime caused by HVAC network problems.
Air velocity is a key parameter in evaluating airflow system performance. As part of basic testing, adjusting and balancing of HVAC air distribution systems, most HVAC technicians now use an anemometer to measure air velocity at grilles-registers-diffusers, within a duct, or in open spaces.
After years of being a serviceman - slinging ladders, dragging tools across attics and through crawlspaces, standing in all sorts of weather on rooftops - I can now leave the service work to one of the younger techs with better knees and concentrate on my primary job as company start-up man.
Preparing ice for curling competitions with the aid of Fluke infrared camera, infrared thermometer, digital thermometer, and temperature humidity meter
In my role as a consultant and trainer, I spend a lot of time working with facility maintenance personnel. Recently I was recently given a formidable task by the maintenance leadership of the plant services shop of a large university.
Most of the hours when comfort cooling systems operate are well below outdoor design conditions. The equipment may have been selected to maintain 75°F and 50% RH indoors when it is 95°F outdoors, but what happens at lower outdoor temperatures? There's less run time to satisfy the thermostat, but not enough run time to maintain desirable or comfortable humidity levels. Some modern equipment and components are designed to overcome this effect.
Testing and comparing air quality in two homes for ventilation system effectiveness, using a Fluke 985 Particle Counter: particulates, formaldehyde, other VOCs
Five years ago, with the move to highefficiency equipment, Fluke began receiving trouble calls from service techs. The calls came post-installation, and they weren't about the new equipment—they were about other parts of the system that were now operating erratically, if at all.
As we have seen, power problems have a bad effect on electronic devices. To detect a power problem, a technician will first check out the power supply to a device to make sure it is functioning properly.
If you're still using these solenoid testers, it's time to trade up to an solid-state electrical tester.