Roots draft fan air capacity is calculated and the property curve is drew, and control principle of constant pressure complementaryair device is discussed.
计算出罗茨风机的风量并绘制出风机的性能曲线；论述了恒压补气装置的控制原理。
2
In automatic, moisture, and refrigeration and air distribution mode, cannot set complementary heat function, and no "complementary heat" on display.
在自动、除湿、制冷、送风模式下，不能设置辅热功能，且无“辅热”字样显示。
3
Depends on availability of venue - Complementary only if air-con is not turned on. Otherwise relevant facilities rental charges are imposed.