信号基站空调维修手册.docx

空调维修实用手册 空调维修实用手册 目录 一．基础理论··································································3 1.制冷系统基本原理····························································3 2.空调基本电源控制系统原理····················································3 3.空调基本结构································································3 3.1.压缩机····································································3 3.2.冷凝器····································································4 3.3.膨胀阀····································································4 3.4.蒸发器····································································4 3.5.控制面板···································································5 3.6.控制变压器·································································5 3.7.室外、内电机·······························································5 3.8.三相接触器································································· 3.9．电机电容·································································· 6 3.10．内风机继电器····························································· 6 4.空调电机接线图······························································7 二．制冷工具使用操作方法·····················································10 1.压力表操作方法·····························································10 2.空调压力的测试和冲加制冷剂流程·············································10 3.怎样连接管对制冷系统进行抽真空·············································11 4.管工工具及使用方法·························································12 三．空调的日常维护要求······················································15 四．空调常见故障与分析······················································16 1．电源反相·································································16 2.空调缺少 R22·······························································16 3.空调 R22 过多······························································16 4.空调压缩机故障····························································16 5.节流阀（热力膨胀阀）故障··················································17 6.空调室外风机故障·