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How to make certain a heating and cooling reversing valve is working correctly?
Wiki User
∙ 13y ago
If this is a reversing valve on a heatpump all you need do is to find out if you are getting voltage to the solenoid on the reversing valve. The solenoid is energized in either the heating or cooling mode, depending on the unit and normally receives its voltage from the orange wire from the thermostat.
If you have no voltage to the solenoid in the cooling mode, switch it over to heat. If you still have no voltage, the solenoid or the control board is bad and needs to be replaced. If you have voltage, the valve should make a swooshing noise when the unit is switched from heat to cool/cool to heat. No swoosh, valve is bad.
*First, if there is no voltage to the solenoid, then the problem does not necessarily lie in the solenoid, but from the source of its power: a relay, a control board, etc...
*Second, the statement, "No swoosh, valve is bad" is common terminology used by people who don't completely understand how heat pumps and reversing valves operate. The "swoosh" is the refrigerant rushing sound heard when the slider inside the valve shifts positions. The slider is operated by discharge pressure from the unit's compressor. If the unit is low of refrigerant it might not have enough discharge pressure to make the slider shift, therefore no "swoosh" sound.
A lot of reversing valves and compressors have been needlessly replaced by individuals who don't know what they are doing.
Wiki User
∙ 13y ago
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When the solenoid on a heat pump is energized in what mode will the reversing vavle be?
depends on who makes it. some energize in heating and some in cooling.
What component allows heat pump to switch between heating and cooling modes of operation?
the reversing valve is what actually changes the refrigeration cycle from heat to cool. the reversing valve receives its signal from the thermostat.
In a heat pump installation the direction of flow refrigerant vapor is reversed through what component when the cycle is reversed from heating to cooling?
The reversing valve
I have Ceiling hung Florida heat pump unit. when i call for cooling I get heat from vents?
The O and B terminals are not properly enabled in the thermostat or not correctly hooked up in the unit. Some units energize the O or the B terminals to activate the reversing valve for heating or cooling, Check with the manufacturer or just try to make the swap and see if it corrects the problem.
Can heatpump switch from heating to cooling and from cooling to heating automatically?
You have to manually select the heating, and cooling mode located on your thermostat.
Can I separate my heating and cooling system, or do I call a professional?
Consultation of a licensed heating/cooling contractor is advisable when considering separating the heating and cooling units. The Guide to Heating and Air Conditioning is an excellent resource for information on heating/cooling repair work.
What makes a heat pump change from cooling to heating Is it the reversing valve or is it something else I guess what i am asking is it that componet or does it have some kind of thermostat on it?
Typically, your central thermostat sends a 24 volt signal to a terminal labelled "O", down a (usually orange-colored) wire to the reversing valve. This energizes the valve to switch over to cooling operation. For heat, the 24 volt signal is removed, and the valve defaults to the heating position.The HVAC Veteran
Where can you find facts about heating and cooling?
type in google/bing heating and cooling facts.
How has technology changed people's homes?
yes for example heating and cooling and stoves
Can Geothermal pumps can be used for heating or cooling?
cooling
What is thermo cycling?
Thermo cycling AKA thermic cycling AKA thermal cycling means taking something, heating it, cooling it and heating it and cooling it over and over again. Each hot-cold sequence will introduce mechanical stresses as materials expand on heating and contract on cooling. It's often used to research how durable a certain design is likely to be.
Science fair do heating and cooling effect the strength of glass?
No, heating and cooling does not effect the strength of a glass
