一、电器部件

　　装配式冷库的电气系统是由冷库照明、门防冻加热器、下水防冻加热器、吊顶风机控制和温控系统所组成：

　　冷库照明是由防潮灯、照明开关、～220/36变压器所组成：

　　变压器为冷库照明、门防冻加热器、下水防冻加热器提供一个安全、稳定的～36V电源。

　　（注：若用户要求冷库照明带指示灯时，照明将采用～220V照明系统。）

　　门防冻加热器、下水防冻加热器：

　　1、门防冻加热器是防止库门在低温下与冷库冻在一起无法打开。

　　2、下水防冻加热器是防止融霜水在下水管道结冻，使融霜水无法排出。

　　一般情况下，低温冷库易发生冻结现象，应采用加热丝。而中温冷库一般不需要。

　　二、吊顶风机

　　1、风机是用来强制热交换的。一般它是用一个限温开关控制，保证蒸发器降至一定温度开始运行。同时它又与融霜控制相连锁保证在融霜过程中，风机停止运行。

　　2、融霜加热器是用除支吊顶风机蒸发器上结的霜，从而提高热交换的效率。它是由融霜时间控制器控制。它终止方式是融霜限温开关控制的温度终止方式和融霜时间控制器控制的时间终止方式。

　　另有一些特殊的冷库，需要采用特殊的附件来加强和完善冷库的结构。

　　冷库一般应按以下步骤进行安装：库体—风机—制冷系统—电器系统—完成。

1、 Electrical components

The electrical system of the assembled cold storage is composed of cold storage lighting, door anti freezing heater, water anti freezing heater, ceiling fan control and temperature control system

Cold storage lighting is composed of damp proof lamp, lighting switch and ~ 220 / 36 transformer:

The transformer provides a safe and stable ~ 36V power supply for cold storage lighting, door anti freezing heater and water anti freezing heater.

(Note: if the user requires cold storage lighting with indicator light, the lighting system will be ~ 220V.)

Door anti freezing heater, water anti freezing heater:

1. The door anti freezing heater prevents the door from being unable to open when it is frozen together with the cold storage under low temperature.

2. The water anti freezing heater is to prevent the defrosting water from freezing in the water pipe, so that the defrosting water can not be discharged.

In general, cold storage is easy to freeze, so heating wire should be used. However, medium temperature cold storage is generally not required.

2、 Ceiling fan

1. Fans are used to force heat exchange. Generally, it is controlled by a temperature limit switch to ensure that the evaporator starts to operate when the temperature drops to a certain value. At the same time, it is interlocked with defrosting control to ensure that the fan stops running in the defrosting process.

2. Defrosting heater is used to remove the frost on the evaporator of ceiling fan, so as to improve the efficiency of heat exchange. It is controlled by defrosting time controller. Its termination mode is temperature termination mode controlled by defrost temperature limit switch and time termination mode controlled by defrost time controller.

In addition, some special refrigerators need to use special accessories to strengthen and improve the structure of refrigerators.

Generally, the following steps shall be followed for the installation of cold storage: storage body fan refrigeration system electrical system completion.