MAG-XE E4 240202258/Y001 流量信号转换器 ABB
线圈。热空气吸收的热量使制冷剂沸腾并变成蒸汽。制冷剂
继续通过系统流向压缩机（C），注意换向阀的位置。当它进入
压缩机制冷剂为低温、低压蒸汽。
制冷剂进入压缩机，在那里被加压成高温高压蒸汽。这个
制冷剂现在处于非常高的压力下并且具有高沸点。在这些条件下，制冷剂可以
容易浓缩。当制冷剂通过冷凝器盘管（A）时，装置内的风扇（B）推动空气
穿过线圈。当风扇推动空气通过散热片时，制冷剂将热量排出到通过的空气中。这个
通过的空气将吸收热量，使制冷剂冷却并冷凝成液体。高压
液体流向冷凝器的出口，即膨胀阀。制冷剂将进入阀门
高温高压液体。该阀将允许制冷剂的压力变化
制冷剂将作为低温低压液体离开阀门，并重新开始该过程。
加热循环图B：
该循环中的制冷剂将按照图B中的蓝色箭头顺时针移动
加热模式下的制冷剂流量。从膨胀阀（D）之后开始，制冷剂以低启动
温度、低压液体。在这种低压条件下，制冷剂具有低沸点。这个
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IPI在环境中实施可持续节能战略的方法（2017年）
制冷剂被推动通过蒸发器盘管（A），然后从通过的暖空气中吸收热量
在线圈上。空气吸收的热量使制冷剂沸腾并变成蒸汽。制冷剂
继续通过系统流向压缩机（C），注意换向阀的位置。这个
制冷剂是一种低温、低压蒸汽。
制冷剂进入压缩机，在那里被加压成高温高压蒸汽。这个
高压制冷剂具有高沸点，更容易冷凝。当制冷剂通过
冷凝器盘管（F）它将热量排出到空气中，空气被风扇（B）推过盘管上的散热片。路过的空气
将吸收热量，使制冷剂冷却并冷凝成液体。温暖的空气将被排出
进入太空。高压液体制冷剂向冷凝器出口移动，膨胀
阀门制冷剂将作为高温高压液体通过阀门，然后流出
并再次开始该过程。
系统变化：
1.热泵的设置和布局可能因设计和制造商而异。
2.装置的排放侧可位于建筑物外部，而供应侧位于建筑物内部
大楼。
3.根据设计，热泵的排放侧可通过水或外部空气处理。
4.整个装置可构建为一个完整的一体式箱式装置或两个独立装置，通过以下方式连接：
制冷剂管路。
强制通风炉
组件/布局：
通风孔
供应管道
热交换
室外进气
滤器
鼓风机
IPI在环境中实施可持续节能战略的方法（2017年）
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空气流量：
在E点，鼓风机通过过滤器将空气吸入装置。风扇推动空气通过热量
交换器（C），其在空气通过时加热空气。由此产生的较暖空气通过供气管道输送
（B） 到空间。当热空气供应到空间时，较冷的空气被向下推动并被吸入
返回并被系统重用。装置通常会运行，直到满足空间温度，此时
熔炉关闭的时间。这些装置需要自由空气流才能运行，并且为了适当的空气流，应
打开回风管道和畅通无阻的空气通道，以帮助在操作时吸入空气。
系统变化：
1.一种系统可以利用多种方式中的一种来加热空气（气体燃烧器、电盘管、热泵或
循环盘管）。
2.单元的回风可能是实际的管道系统，也可能是切割到地板和墙壁上的回风格栅
创造流通。
3.根据设计，加湿装置可能位于加热线圈之后。
强制空气冷却
MAG-XE E4 240202258/Y001 流量信号转换器 ABB
MAG-XE E4 240202258/Y001 流量信号转换器 ABB
the coils. The heat absorbed by the warm air causes the refrigerant to boil and become a vapor. The refrigerant
continues through the system toward the compressor (C), note the position of the reversing valve. As it enters
the compressor the refrigerant is a low temperature, low pressure vapor.
The refrigerant enters the compressor where it is pressurized into a high temperature, high pressure vapor. The
refrigerant is now under very high pressure and has a high boiling point. At these conditions, the refrigerant can
condense easily. As the refrigerant moves through the condenser coil (A) the fan (B) inside the unit is pushing air
across the coils. The refrigerant will expel heat to the passing air as it is pushed though the fins by the fan. The
passing air will absorb the heat, causing the refrigerant to cool and condense into a liquid. The high-pressure
liquid moves towards the outlet of the condenser, the expansion valve. The refrigerant will enter the valve as
a high temperature, high pressure liquid. The valve will allow the pressure of the refrigerant to change and the
refrigerant will exit the valve as a low temperature, low pressure liquid and start the process over again.
Heating Cycle Diagram B:
The refrigerant in this cycle will move in a clockwise pattern, following the blue arrows in Diagram B for
refrigerant flow in heating mode. Beginning just after the expansion valve (D) the refrigerant starts off as a low
temperature, low pressure liquid. Under this low pressure condition the refrigerant has a low boiling point. The
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IPI’s Methodology for Implementing Sustainable Energy-Saving Strategies in Collections Environments (2017)
refrigerant is pushed through the evaporator coil (A) where it then absorbs heat from the warm air that is passing
over the coils. The heat absorbed by the air causes the refrigerant to boil and become a vapor. The refrigerant
continues through the system toward the compressor (C), note the position of the reversing valve. The
refrigerant is a low temperature, low pressure vapor.
The refrigerant enters the compressor where it is pressurized into a high temperature, high pressure vapor. The
high pressure refrigerant has a high boiling point and can condense easier. As the refrigerant moves through the
condenser coil (F) it expels heat to the air that is pushed though the fins on the coils by the fan (B). The passing air
will absorb the heat causing the refrigerant to cool and condense into a liquid. The warmer air will be exhausted
into the space. The high-pressure liquid refrigerant moves towards the outlet of the condenser, the expansion
valve. The refrigerant will pass through the valve as a high temperature, high pressure liquid and it will come out
as a low temperature, low pressure liquid and start the process over again.
System Variations:
1. The setup and layout of a heat pump can vary depending on the design and manufacturer.
2. The discharge side of the unit may be located outside of the building while the supply side is located inside
the building.
3. Depending on design the discharge side of the heat pump may be treated by water or outside air.
4. The overall unit may be built as a complete all-in-one box unit or as two separate units connected by
refrigerant lines.
Forced Air Furnace
Components/Layout:
Vent
Supply Duct
Heat Exchange
Outside Air Intake
Filter
Blower Fan
IPI’s Methodology for Implementing Sustainable Energy-Saving Strategies in Collections Environments (2017)
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Air Flow:
Air is drawn into the unit through the filter by the blower fan, at point E. The fan pushes air past the heat
exchanger (C) which warms the air as it passes through. The resulting warmer air is sent through the supply duct
(B) to the space. As the warm air is supplied to the space, the cooler air is pushed down and is drawn into the
return and is reused by the system. A unit will typically operate until the space temperature is satisfied, at which
time the furnace turns off. These units require a free flow of air to operate and for proper air flow should have
open return air ducts and an unobstructed air path to help draw in air when operating.
System Variations:
1. A system may utilize one of a number of means to heat the air (gas burner, electric coils, heat pump, or
hydronic coils).
2. The return for a unit may be actual ductwork or may be return grates cut into the floors and walls to
create circulation.
3. Humidification unit may be present after the heating coil depending on the design.
Forced Air Coolin
MAG-XE E4 240202258/Y001 流量信号转换器 ABB
