Which way does an AC filter drier go?
When the piping arrangement results in excessive stress on refrigerant line, the filter drier should be supported by a suitable bracket. Install with arrow pointing in direction of flow (toward compressor). Reverse flow may cause internal damage.
What happens if a filter drier is installed backwards?
When installing a new filter drier, an arrow on the filter drier’s housing will indicate which direction refrigerant is designed to flow. If installed backwards, the filter drier will become useless.
Can a filter drier be installed vertically?
Suction Line Filter-Driers and Suction Filters may be installed either in a horizontal or vertical position. If the vertical position is used, the flow should be downward to prevent oil trapping. Always install the unit with the flow direction as specified on the product label.
Where do you put a filter drier on a heat pump?
On heat pump systems, the drier should be installed nearest the metering device being used first in commissioning. If the heat pump is installed in the winter the LLFD is to be installed by the outdoor unit, if the heat pump is installed in the summer the LLFD is to be installed by the indoor coil.
What is a liquid line drier used for?
Liquid line driers have been used in refrigeration systems for many years. A driers primary function is to filter and remove moisture from the refrigerant. Moisture in a refrigeration system is a contributing factor in the formation of acids, sludge, and corrosion.
What happens if a liquid line solenoid valve is installed backwards?
Be certain that the correct flange is installed on the inlet line in order to properly match the flow direction of the valve. If the valve is installed backwards, it will not function properly.
What is the maximum temperature drop across a liquid line filter dryer?
2 degree’s F.
It is recommended that temperature or pressure drop across a Drier is no more than 2 degree’s F.
How does a liquid line drier work?
Filter driers are usually installed in the liquid line of a dry-expansion refrigeration system, where they have a dual function. First, they trap coarse particulate contamination and copper shavings, and second, they capture any moisture present in the system.
Which one is the liquid line and suction line?
Refrigerant Lines The larger line typically carries a cool gas and is insulated. This is commonly referred to as the suction line, but it is also called the return line or vapor line. The smaller uninsulated line typically carries a warm liquid. It is most often called the liquid line.
Are filter driers directional?
Standard filter-driers will not tolerate flow in the reverse direction. Reverse flow washes out the dirt previously collected, and also tends to result in high pressure drop. When replacing the original driers on a unit, standard filter-driers are preferred.
Is your air conditioner’s liquid line filter drier clogged?
One of the most common problems that air conditioning systems may face is a plugged or clogged liquid line filter drier, which helps to keep water and dirt out of the compressor. A plugged liquid line filter drier can be the cause of a number of different problems with your air conditioning system.
How can you ensure that you install your air filter in the correct direction?
How can you ensure that you install your air filter in the correct direction? Air filters have arrows printed on the sides of them that show you which way they are supposed to be installed. These arrows should be pointing in the direction that air flows through your system, which is away from the supply ducts and (typically) toward the blower .
How do you use a line drier on a compressor?
• Point the arrow in the correct direction. Suction driers point towards the compressor and away from the evaporator. Liquid line driers point toward the metering device and away from the condenser. • A liquid line drier goes in the liquid line, NOT in the discharge line.
Which direction should the air filter’s Arrows face?
These arrows should be pointing in the direction that air flows through your system, which is away from the supply ducts and (typically) toward the blower. Easy Tip: You can look at the old filter’s arrows before you install your new filter and make sure that the new filter’s arrows face the same direction.