安全信息................................................................................................................................3 警报框....................................................................................................................................3 警告...................................................................................................................................3 简介...................................................................................................................................4 一般规格............................................................................................................................4 预期用途............................................................................................................................4 操作原理............................................................................................................................5 拆箱......................................................................................................................................9 安装......................................................................................................................................9 单设定点温度控制（自动）操作（型号 F30420C 和 F30428C）....................................10 控制和显示........................................................................................................................10