请高人帮忙翻译，非常感谢！

当热交换器内循环出风口温度小于5℃时，加热器启动加热；当热交换器内循环出风口温度大于15℃时，加热器停止加热。
When the heat interchanger internal recycling leaves the gusty areatemperature is smaller than 5 ℃, the heater starts heats up; Whenthe heat interchanger internal recycling leaves the gusty areatemperature is bigger than 15 ℃, the heater stops heating up.

外循环风扇： Outside circulates the ventilator
当温度T≥35℃时， 风扇启动；
When temperature T >= 35 ℃, the ventilator starts;

当温度T≤25℃时，风扇停止转动。
When temperature T <= 25 ℃, the ventilator stops rotating.
内循环风扇： Internal recycling ventilator
内循环风机持续运行。
The internal recycling air blower continues to move.

温度传感器应安装在内循环出风口处，温度传感器精度为+/-3℃。
The temperature sensor should install in the internal recycling leavesthe gusty area, the temperature sensor precision is +/-3 ℃.

下图表示标识了OUT40E的循环系统。红色为外循环，蓝色为内循环。
The next graph showed has marked the OUT40E circulatory system. Redcirculates for outside, the bl