Reversing valve

A reversing valve a type of valve and is a component in a heat pump, that changes the direction of refrigerant flow. By reversing the flow of refrigerant, the heat pump refrigeration cycle is changed from cooling to heating or vice versa. A heat pump reversing valve is an electro-mechanical 4-way valve that reverses the refrigerant (Freon) flow direction, using an electrical magnet. It works very similar to your washer’s water valve or solenoid valve (pictured below).

The mode in which the heat pump will operate is determined by which reversing valve tubes are piped to the inside and outside heat exchangers. I show the symptoms of a stuck reversing valve.

This one is stuck partway and is bypassing from high side to low side. This video is part of the heating and cooling series of training videos made. If the reversing valve gets very hot very fast, the problem is the reversing valve. If you still cannot determine which is the problem, it most likely is the compressor, because the location where you touch the compressor is removed from the source of the hot gas. SLIDE TYPE REVERSING VALVES.

In Figure the system is on the heating cycle with discharge gas flowing through reversing valve ports D to making the indoor coil the condenser. In this video we take a look at how a reversing valve works in a heat pump, we explain the basic operation of a. The solder connection at the pilot tube and valve allows for increased reliability and low leakage probability. for Special Offers Directly from AmericanHVACParts.

Reversing Valve - Carrier. It is located along the tubes or pipes that connect the major operating components of the heat pump, and helps direct the flow of refrigerant through these pipes. This type of valve is used to completely reverse the flow in a reversible system. Such valves may be used when both heating and cooling modes are require or to provide an effective, energy-efficient defrosting method.

We use cookies to improve our site and your shopping experience. By continuing to browse our site you accept our cookie policy. How does a heat pump reversing valve work? I nside the reversing valve is a sliding piston with ports.

Sliding the piston to one side or the other connects the hot gas and suction ports from the compressor to either the indoor or outdoor coils depending on what mode the system is operating in. We describe how a heat pump reversing valve works, how to find the reversing valve , and we include reversing valve troubleshooting advice and research articles. Please upgrade your browser or contact your System Administrator for.

The unit cooled great for about minutes. This means if the reverse valve fails, it is in the heat position. The reverse valve is normally set for O. Theory being that heat is more critical than cooling. In the case of O and the reverse valve fails you have heat but not cooling.

If in B and it fails, you would have cooling but not heat. The industry standard is to try and use O all the.

Troubleshooting a reversing valve can be tricky. Overview: Valve failures will generally be one of three failure modes: 1. Stuck somewhere between heat and cool positions. Coil failure is usually fixable. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Fill Your Cart With Color today!

This is one of the leading causes of compressor failure on heatpumps. If the compressor was damaged while the system was running with the reversing valve stuck in the middle of the valve make sure that a new reversing valve is installed with the new. Register in easy steps, today!

A heat pump which is low on refrigerant charge or has a stuck reversing valve can cause this problem. Please make sure that you are getting volts to your reversing valve coil and that your reversing valve coil is good. If your reversing valve is stuck I would suggest that you check or have your heat pump system refrigerant charge checked.

Handle any reversing valve with extra care! As we will see later, when describing heat pump systems, you cannot simply add a reversing valve to an air conditioner and make a heat pump. The most common cause requiring reversing valve replacement is compressor burnout. When you have a compressor burnout, REPLACE THE REVERSING VALVE ! The superior design and build of our reversing valves mean our customers know they have a component made for season after season of hard work. Price for changing reversing valve about 5to 7dollars depending on location.

We are not allowed to recommend Service companies. They are probably trying to get you purchase a new unit. Heat Pump Sequence of Operation - Industry Differences There is only a slight difference in the operation if you own a Rheem or a Ruud heat pump system. As the blower motor fan and the compressor contactor are energized so is the reversing valve.

This solenoid-operated valve is a slide type design with a 4-way pilot valve and it operates under the full pressure of the heat pump system. Available Wwiring harnesses are shipped separately. Wiring harnesses can be specified at various lengths, terminations, and identification. Suggested site content and search history menu. When a current is applied to the reversing valve in the relaxed state, it becomes energized and switches the flow of refrigerant.

It is used at room air conditioners, packaged and central air conditioners. About of these are valves, are mining machinery parts. A wide variety of pneumatic reversing valve options are available to you, such as low pressure, high pressure.

It reverses the flow of refrigerant in the system to make the condenser into an evaporator and the evaporator into a condenser. Discover How To Repair Anything! DIY Supplies For Your Home or Garden Needs.