R22 220V Copeland Digital ZRD Series Compressor

Copeland ZRD Series Digital Scroll Compressor ZRD36KC-PFV-522

Compressor Tips:

Compressor pressure protection measures include the following aspects:

1. Control of suction and discharge pressure

When the compressor is running, the exhaust pressure may be too high or the suction pressure may be too low due to the system or the compressor itself. Therefore, it is necessary to control the suction and discharge pressure.

The common controller is not high and low pressure controller, which is composed of high pressure control part and low pressure control part.

2. Safety valve

In order to prevent refrigerant leakage to the atmosphere, closed safety valve is adopted. The upper side of the valve disc bears the exhaust pressure, and the lower side bears the suction pressure and the spring force.

3. Safety film

Install a safety diaphragm between the suction and exhaust chambers. When the suction and discharge pressure difference exceeds the specified value, the diaphragm breaks and the discharge pressure decreases. The screen is used to catch the broken diaphragm to protect the compressor.

4. Lubricating oil pressure difference controller

The difference between the oil pressure at the outlet of the oil pump and the oil pressure in the crankcase. In order to protect the good lubrication of the moving parts of the compressor and ensure the normal operation of some compressor gas transmission control mechanisms.

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