Use Dryer (Dryers and Filters
Many service calls in response to the problems caused by moisture. Enough moisture in the form of ice capillaries and expansion valves and plug them in. There are several ways to remove moisture, including:
- The vacuum.
- Slow steady stream of hot, dry air.
- Several alternative moderate broken vacuum cleaners for dry refrigerant.
- The use of a filter-dehydrator.
All commercial systems, liquid line driers for standard installation. Drier size, as a rule, is based on the following:
- Power of the system.
- Type of refrigerant.
- Use of the system (air-conditioners, commercial or low temperature).
30 3 dehumidifier will serve as a 1-hp R-12 or R-500 air conditioning system. 100 in3 unit 3" dia. 10") will be the following:
- 5 HP-conditioning system, 3-HP commercial, or 3-HP low temperature unit with R-12 or R-500 refrigerant.
- 10 HP air conditioning, 5-hp commercial or 5-HP low temperature unit using R-22 or R-502.
Driers will hold more moisture, because it reduces their temperature.
Set as close as possible to the land, refrigerant management as possible. Remember, dehumidifier can heat up due to the shortage of refrigerating or high temperature. Then he can release it absorbed moisture.
Keep land sealed until it is installed. If left open, it will absorb moisture from the air. Drier is becoming warmer as a refrigerant flows and, as it absorbs water from the refrigerant. This warming could be used as an indication that the unit will absorb water. Sight glass with moisture indicator will determine whether your system is dry.
Install the sight glass on the liquid line between the filter-dehydrator and refrigerant control. As a start, the blisters usually appear in the sight glass. This is normal. If bubbles " continue", the system has a low refrigerant or filter drier partially obstructed. If not working, filter drier, seems colder than usual to the touch, because evaporation occurs.
When you install the sight glass and the indicator of humidity to avoid overheating. Temperature 275F (135C) or above will affect the chemical. Put a cold compress on the sight glass indicator when brazing next to him. Avoid the flow inside the sight glass indicator. RSS chemicals can affect the moisture indicator of chemicals.
All dryers use the screens to particulate in the refrigerant. These screens and filters come in several types. Screens are typically made from bronze, brass, stainless steel, Monel wire. They should be from 100 to 120 mesh. That is, there should be 100 holes along the 1" rule length (10,000 holes per square inch). Popular screens 100 90, "100 by 100, 108 and 120 120 120. Wire usually .004" .005" diameter. In this wire size, the openings are about .005" square.
Felt filters can be used. It is about 1/8" thick and made of a special material. Wool batt is also used as a filter in some of the drier. One company has specially processed rough cotton yarn wound in the diamond for a metal frame. One of the latest filters makes use of powder metals by pressure castings.
Dryers and filters installed in sucdon line of defense of the compressor motor burn-in prevention. They should always be used after hermetic motor burnout. Dirt in the system can cause serious damage. In small solid particles act as an abrasive. They will wear needles and places refrigerant management, valves and valve seat inserts compressors, bearings, pistons compressors. These particles can also wear through the motor insulation and lead to burnout.
He has bolted Assembly for a resolution replacement of the filter element. Connection of service allows you to check the pressure drop. The sensor must not read more than 2 psi (17 inch or 117 kPa) higher than the compressor connection of the sensor of the unit. If the sensor has a high reading, filter element must be replaced.
Intake filter-dehydrator is required if the oil is added to the system. Oils, additives may react and make sludge. All refrigerants can be successfully dried in a dryer or in a liquid and suction line.
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