本文基于ASHRAE研究项目RP-1182的研究结果，给出了在三个不同海拔高度对四台引风式家用炉进行现场测试的结果。测试高度为海平面2250英尺（685米）和6700英尺（2040米）。在天然气和丙烷气上运行时，这些熔炉在各种降额方案、稳态效率和一氧化氮排放下进行了安全运行测试。使用的测试协议来自ANSI Z21。47/CSA 2.3美国国家标准/CSA燃气中央炉标准（ANSI 2001）。第一部分介绍了安全运行和降额方案的结果，而第二部分包含了稳态效率和一氧化氮测量的结果。结果表明，使用孔口尺寸和歧管压力的海平面设置，在不超过400 ppm无一氧化碳空气（CO- AF）烟气中的限制。这是由于文丘里式燃烧器，每海拔增加1000英尺（305米），燃油流量自然减少约1.8%。在一次试验中，过度燃烧导致烟气CO-AF浓度超过400ppm。测量的CO和计算的CO-AF浓度在两种试验燃料的海拔升高时显示出相同的总体趋势。未观察到海拔高度对点火系统（热表面点火器）性能的影响。单位:双引文:ASHRAE交易，第115卷，第。2009年1月1日，芝加哥

This paper is based on findings resulting from ASHRAE Research Project RP-1182The results of field testing four induced-draft residential furnaces at three different altitudes are presented. The test altitudes were sea level, 2250 ft (685 m), and 6700 ft (2040 m). The furnaces were tested for safe operation under a variety of derating schemes, steady state efficiency, and nitric oxide emissions while operating on both natural gas and propane gas. The test protocols used were from ANSI Z21.47/CSA 2.3 American National Standard/CSA Standard for Gas-Fired Central Furnaces (ANSI 2001). In this Part I, the results from the safe operation and derating schemes are presented, while a companion paper, Part II, contains the results from the steady state efficiency and nitric oxide measurements.The results showed that the furnaces could be fired at all altitudes using the sea level settings of orifice size and manifold pressure without exceeding the 400 ppm carbon monoxide air free (CO-AF) limit in the flue gas. This is due to the venturi-style burners that naturally reduce the fuel flow rate by about 1.8% per 1000 ft (305 m) increase in altitude. Over firing resulted in the flue gas CO-AF concentration exceeding 400 ppm in only one test.The measured CO and calculated CO-AF concentrations showed the same general trends with increasing altitude for both test fuels. No effects of altitude on the performance of the ignition systems (hot surface igniters) were observed.Units: Dual