4. ADJUSTMENT
4-1 COMPRESSOR
The compressor intakes low temperature and low pressure gas from the evaporator of the refrigerator and compresses this gas to
The compressor includes overload protection. The PTC starter and OLP (overload protector) are attached to the outside of the compressor. Since the compressor is manufactured to tolerances of 1 micron and is hermetically sealed in a dust and
(1)Be careful not to allow
(2)If compressor is dropped or handled carelessly, poor operation and noise may result.
(3)Use proper electric components appropriate to the Particular Compressor in your product.
(4)Keep Compressor dry.
If Compressor gets wet (in the rain or a damp environment) and rust forms in the pin of the Hermetic Terminal, poor operation and contact may result.
(5)When replacing the Compressor, be careful that dust, humidity, and soldering flux don’t contaminate the inside of the compressor. Dust, humidity, and solder flux contaminate the cylinder and may cause noise or improper operation even cause it to lock up.
4-2 PTC-STARTER
(1)PTC (Positive Temperature Coefficient) is a
(2)The higher the temperature is, the higher the resistance value. These features are used as a starting device for the Motor.
(1)The PTC is attached to the Sealed Compressor and is used for starting the Motor.
(2)The compressor is a
●Starting Method for the Motor
OVERLOAD PROTECTOR |
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2 | PTC | 5 |
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3 | 6 |
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L1 |
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| PTC STARTER |
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Figure 10
(1)It requires approximately 5 minutes for the pressure to equalize before the compressor can start.
(2)The PTC device generates heat during operation. Therefore, it must be allowed to cool before the compressor can restart.
(1)If the compressor attempts to restart before the PTC device is cooled, the PTC device will allow current to flow only to the main winding.
(2)The OLP will open because of the over current condition. This same process will continue (3 to 5 times) when the compressor attempts to restart until the PTC device has cooled. The correct OLP must be properly attached to prevent damage to the compressor.
(1)Be careful not to allow
(2)Do not drop or handle carelessly.
(3)Keep away from any liquid.
If liquid such as oil or water enters the PTC, PTC materials may fail due to breakdown of their insulating capabilities.
(4)If the exterior of the PTC is damaged, the resistance value may be altered. This can cause damage to the compressor and result in a
(5)Always use the PTC designed for the compressor and make sure it is properly attached to the compressor.
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