原文：
　 由温度传感器TE-1，比例积分温度控制器TC一1和电动调节阀TV一1组成送风温度控制系统，安装在送风管道的TE一1，把检测到的温度信号传送至TC一1，由TC一1将TE一1的检测值与设定值不断比较，同时不断地输出信号，控制TV一1的开度连接可调， 最终使TE一1测量的环境温度保持在设定的温度范围内。 空气压差开关DPS一1是用来检测过滤网的透气情况，过滤网越脏，透气率越低，其两侧的压力差越大。当压力差超过DPS一1的设定值时，微动开关运作，发出报警信号。 当盘管后的温度低于某限值时，低温保护开关TS一1切断送风机的电源，从而使新风风阀关闭，防止盘管内的水结冰，涨裂盘管。

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译文：
By the temperature sensor TE-1, PI temperature controller TC-1 and TV-1 electric control valve composed of air temperature control system, installed in the air supply pipe TE-1, the detected temperature signal sent to the TC-1 from TC-1 to TE-1 detection value and set value of constant comparison, the same time keep the output signal, control, TV-1 of the opening adjustable connection, ultimately measured TE-1 maintained at set temperature temperature range. Air pressure switch DPS-1 is used to filter the air permeability test case, the more dirty filter, lower permeability, the greater the pressure difference on both sides. When the pressure difference over DPS-1 settings, the micro switch operation, an alarm signal. When the coil temperature drops below a certain limit after, the temperature protection switch TS-1 to cut off the power supply fan, so the new style air valve closed, to prevent freezing of water within the coil, coil split up.