前言:这是CSA标准C652《住宅用储水箱和热泵热水器的安装》的第二版。它取代了1992年出版的题为《住宅用储水箱电热水器安装》的上一版本。本版本增加了热泵热水器的安装要求。本标准为储水箱和热泵的安装提供了指南 加热器。它补充了安全和性能标准，并包括以下要求: 在水管上安装隔热层，使用热阱，在 水箱底部以及其他与良好安装实践相关的项目。本标准由以下机构管辖的热水器小组委员会编制: 住宅设备技术委员会和性能战略指导委员会， 能源效率和可再生能源，并已得到技术委员会的正式批准。会的 作为加拿大国家标准提交加拿大标准委员会批准。范围:1.1本标准规定了住宅用储水箱和热泵热水器的安装要求。1.2本标准适用于（a）容量为（i）50-454升（13-120美制加仑）的储水箱式电热水器；以及（ii）输入功率高达12千瓦的电加热器；以及（b）最大额定电流为24 a的热泵热水器；（ii）单相最大电压为250 V；以及（iii）设备运行所需的辅助设备。 1.3本标准无意为任何给定装置的储罐容量选择提供指导。1.4以SI（公制）单位给出的数值为标准。括号中给出的值仅供参考。

Preface:This is the second edition of CSA Standard C652,lnstallation of Electric Storage Tank and Heat Pump Water Heaters for Residential Use. It supersedes the previous edition, published in 1992 under the titleInstallation of Electric Storage Tank Water Heaters for Residential Use. This edition adds the requirements for the installation of heat pump water heaters.This Standard provides guidance for the installation of electric storage tank and heat pump water heaters. It complements both the safety and the performance Standards and includes requirements for the installation of thermal insulation on water pipes, the use of heat traps, the use of a thermal break at the bottom of the water tank, and other items related to good installation practice.This Standard was prepared by the Subcommittee on Water Heaters under the jurisdiction of the Technical Committee on Residential Equipment and the Strategic Steering Committee on Performance, Energy Efficiency, and Renewables, and has been formally approved by the Technical Committee. It will be submitted to the Standards Council of Canada for approval as a National Standard of Canada.Scope:1.1This Standard specifies requirements for the installation of electric storage tank and heat pump water heaters intended for use in residential premises.1.2This Standard applies to(a) electric storage tank water heaters with(i)volumes of 50-454 L (13-120 US gal); and(ii) electrical heaters with power inputs up to 12 kW; and(b) heat pump water heaters that have(i) a maximum current rating of 24 A;(ii) a single-phase maximum voltage of 250 V; and(iii) ancillary equipment necessary for the device to function.1.3This Standard is not intended to provide guidance in selecting the tank capacity for any given installation.1.4The values given in SI (metric) units are the standard. The values given in parentheses are for information only.