Low Noise R407 Maneurop HVAC Piston Compressor MTZ80HP4AVE 74mm Height

Maneurop Refrigeration Hermetic Reciprocating Compressor MTZ80HP4AVE

Product description:

There may be no more than 12 starts per hour (6 when a soft start accessory is used). A higher number reduces the service life of the motor-compressor unit. If necessary, use an anti-short-cycle timer in the control circuit.
A time-out of six minutes is recommended.
The system must be designed in such a way to guarantee a minimum compressor running time in order to provide proper oil return and sufficient motor cooling after starting.
Note that the oil return rate varies as a function of the system design.
Refrigeration compressors are basically designed as gas compressors. Depending on the compressor design and operating conditions, most compressors can also handle a limited amount of liquid refrigerant. MT and MTZ compressors have a large internal volume and can therefore handle
relatively large amounts of liquid refrigerant without major problems. However even when a compressor can handle liquid refrigerant, this will not be favorable to its service life. Liquid refrigerant can dilute the oil, wash oil out of bearings and result in high oil carry over, resulting in loss of oil from the sump. Good system design can limit the amount of liquid refrigerant in the compressor, which will have a positive effect on the compressor
service life.
Liquid refrigerant can enter a compressor in different ways, with different effects on the compressor.