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	<title>Refrigerator Troubleshooting</title>
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	<description>Refrigerator, freezer and icemaker troubleshooting and repairs</description>
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		<title>Basic heat pump designs</title>
		<link>http://www.refrigerator-troubleshooting.com/basic-heat-pump-designs.html</link>
		<comments>http://www.refrigerator-troubleshooting.com/basic-heat-pump-designs.html#comments</comments>
		<pubDate>Sat, 30 Jan 2010 11:45:05 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Refrigerator Heat Pumps]]></category>
		<category><![CDATA[Basic heat pump]]></category>
		<category><![CDATA[heat pump designs]]></category>

		<guid isPermaLink="false">http://www.refrigerator-troubleshooting.com/?p=799</guid>
		<description><![CDATA[




The four basic heat pump designs for space heating and cooling employ:
• air as the heat source-sink and air as the heating and cooling medium,
• air as the heat source-sink and water as the heating and cooling medium,
• water as the heat source-sink and air as the heating and cooling medium, or
• water as heat [...]]]></description>
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		</item>
		<item>
		<title>Ground-to-water and ground-to-air heat pumps</title>
		<link>http://www.refrigerator-troubleshooting.com/ground-to-water-ground-to-air-heat-pumps.html</link>
		<comments>http://www.refrigerator-troubleshooting.com/ground-to-water-ground-to-air-heat-pumps.html#comments</comments>
		<pubDate>Sat, 30 Jan 2010 11:43:50 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Refrigerator Heat Pumps]]></category>
		<category><![CDATA[ground-to-air]]></category>
		<category><![CDATA[Ground-to-water]]></category>
		<category><![CDATA[heat pumps]]></category>

		<guid isPermaLink="false">http://www.refrigerator-troubleshooting.com/?p=797</guid>
		<description><![CDATA[




In these systems, coil A in Figure 4.2 is buried underground and heat is extracted from the ground. These heat pump systems have limited use. Practical applications are limited to space heating where the total heating or cooling effect is small, and the ground coil size is equally small. This system requires the burial of [...]]]></description>
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		</item>
		<item>
		<title>Air-to-water heat pumps</title>
		<link>http://www.refrigerator-troubleshooting.com/air-to-water-heat-pumps.html</link>
		<comments>http://www.refrigerator-troubleshooting.com/air-to-water-heat-pumps.html#comments</comments>
		<pubDate>Sat, 30 Jan 2010 11:42:43 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Refrigerator Heat Pumps]]></category>
		<category><![CDATA[Air-to-water]]></category>
		<category><![CDATA[heat pumps]]></category>

		<guid isPermaLink="false">http://www.refrigerator-troubleshooting.com/?p=795</guid>
		<description><![CDATA[




In Figure 4.2, these systems work in reverse of the water-to-air heat pumps: they extract heat from ambient or exhaust air to heat or preheat water used for space or process heating. The system is simply reversed. Heat is extracted from the air inside the home and transferred to water and put back in the [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Air-to-air heat pumps</title>
		<link>http://www.refrigerator-troubleshooting.com/air-to-air-heat-pumps.html</link>
		<comments>http://www.refrigerator-troubleshooting.com/air-to-air-heat-pumps.html#comments</comments>
		<pubDate>Sat, 30 Jan 2010 11:39:51 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Refrigerator Heat Pumps]]></category>
		<category><![CDATA[Air-to-air]]></category>
		<category><![CDATA[heat pumps]]></category>

		<guid isPermaLink="false">http://www.refrigerator-troubleshooting.com/?p=792</guid>
		<description><![CDATA[These systems use air on both sides (on coils) and provide heating or cooling. In the cooling mode, heat is removed from the air in the space and discharged to the outside air. In the heating mode, heat is removed from the outside air and discharged to air in the space. In these units, it [...]]]></description>
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		<item>
		<title>Water-to-air heat pumps</title>
		<link>http://www.refrigerator-troubleshooting.com/water-to-air-heat-pumps.html</link>
		<comments>http://www.refrigerator-troubleshooting.com/water-to-air-heat-pumps.html#comments</comments>
		<pubDate>Sat, 30 Jan 2010 11:25:36 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Refrigerator Heat Pumps]]></category>
		<category><![CDATA[heat pumps]]></category>
		<category><![CDATA[Water-to-air]]></category>

		<guid isPermaLink="false">http://www.refrigerator-troubleshooting.com/?p=789</guid>
		<description><![CDATA[Some heat pumps have been designed to operate utilizing a water source instead of an air source simply by designing the outdoor heat exchanger to operate between the heat pump working fluid and water instead of between the working fluid and air. These so-called water-to-air heat pumps have advantages over the air-to-air type if a [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Water-to-water heat pumps</title>
		<link>http://www.refrigerator-troubleshooting.com/water-to-water-heat-pumps.html</link>
		<comments>http://www.refrigerator-troubleshooting.com/water-to-water-heat-pumps.html#comments</comments>
		<pubDate>Sat, 30 Jan 2010 11:16:54 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Refrigerator Heat Pumps]]></category>
		<category><![CDATA[heat pumps]]></category>
		<category><![CDATA[Water-to-water]]></category>

		<guid isPermaLink="false">http://www.refrigerator-troubleshooting.com/?p=785</guid>
		<description><![CDATA[In these heat pump systems, the heat source and the heat sink are water. The heat pump system takes heat from a water source (by coil A) while simultaneously rejecting it to a water heat sink (by coil B) and either heats or cools a space or a process. In practice, there are many sources [...]]]></description>
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		</item>
		<item>
		<title>Classification of Heat Pumps</title>
		<link>http://www.refrigerator-troubleshooting.com/classification-heat-pumps.html</link>
		<comments>http://www.refrigerator-troubleshooting.com/classification-heat-pumps.html#comments</comments>
		<pubDate>Sat, 30 Jan 2010 11:14:24 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Refrigerator Heat Pumps]]></category>
		<category><![CDATA[Classification]]></category>
		<category><![CDATA[heat pumps]]></category>

		<guid isPermaLink="false">http://www.refrigerator-troubleshooting.com/?p=782</guid>
		<description><![CDATA[A systematic classification of the different types of heat pumps is difficult because the classification can be made from numerous points of view, e.g. purpose of application, output, type of heat source, type of heat pump process, etc. If the heat is distributed via a mass flow, e.g. warm air or warm water, this mass [...]]]></description>
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		</item>
		<item>
		<title>Solar for Heat Source of Heat Pump</title>
		<link>http://www.refrigerator-troubleshooting.com/solar-heat-source-heat-pump.html</link>
		<comments>http://www.refrigerator-troubleshooting.com/solar-heat-source-heat-pump.html#comments</comments>
		<pubDate>Sat, 30 Jan 2010 11:06:51 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Refrigerator Heat Pumps]]></category>
		<category><![CDATA[Heat Pump]]></category>
		<category><![CDATA[Heat Source]]></category>
		<category><![CDATA[Solar]]></category>

		<guid isPermaLink="false">http://www.refrigerator-troubleshooting.com/?p=780</guid>
		<description><![CDATA[Solar energy, as either direct or diffuse radiation, is similar to air in its characteristics. A solar-source heat pump or a combined solar/heat pump heating system has all the disadvantages of the air-source heat pump, low performance and extreme variability with the additional disadvantage of high capital cost, particularly as in all cases a heat-store [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Soil and geothermal for Heat Source of Heat Pump</title>
		<link>http://www.refrigerator-troubleshooting.com/soil-geothermal-heat-source-heat-pump.html</link>
		<comments>http://www.refrigerator-troubleshooting.com/soil-geothermal-heat-source-heat-pump.html#comments</comments>
		<pubDate>Sat, 30 Jan 2010 11:05:14 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Refrigerator Heat Pumps]]></category>
		<category><![CDATA[Heat Pump]]></category>
		<category><![CDATA[Heat Source]]></category>
		<category><![CDATA[Soil and geothermal]]></category>

		<guid isPermaLink="false">http://www.refrigerator-troubleshooting.com/?p=778</guid>
		<description><![CDATA[Soil or sub-soil (ground source) systems are used for residential and commercial applications and have similar advantages to water-source systems, due to the relatively high and constant annual temperatures resulting in high performance. Generally the heat can be extracted from pipes laid horizontally or sunk vertically in the soil. The latter system appears to be [...]]]></description>
		<wfw:commentRss>http://www.refrigerator-troubleshooting.com/soil-geothermal-heat-source-heat-pump.html/feed</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Water for Heat Source of Heat Pump</title>
		<link>http://www.refrigerator-troubleshooting.com/water-heat-source-heat-pump.html</link>
		<comments>http://www.refrigerator-troubleshooting.com/water-heat-source-heat-pump.html#comments</comments>
		<pubDate>Sat, 30 Jan 2010 10:54:29 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Refrigerator Heat Pumps]]></category>
		<category><![CDATA[Heat Pump]]></category>
		<category><![CDATA[Heat Source]]></category>
		<category><![CDATA[Water]]></category>

		<guid isPermaLink="false">http://www.refrigerator-troubleshooting.com/?p=775</guid>
		<description><![CDATA[Water-source units are common in applied or built-up installations where internal heat sources or heat or cold reclamation is possible. In addition, solar or off-peak thermal storage systems can be used. These sources have a more stable temperature, compared to air. The combination of a high first-cost solar device with a heat pump is not [...]]]></description>
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