Oil Charging Procedure; Rotation Direction Of Scroll Compressors; Maximum Compressor Cycle; Figure 14: Service Valves And Schraeder Valves For Refrigerant/Oil Charging - Emerson Copeland ZXME-013E Application Manuallines

For charge adjustment it is recommended to check the liquid sight glass just before the expansion
valve.

Figure 14: Service valves and Schraeder valves for refrigerant/oil charging

NOTE: Once charging is done, the type and amount of refrigerant used must be clearly
noted on the unit nameplate.
NOTE: In order to meet the requirements of the Ecodesign Directive 2009/125/EC with regard
to efficient system operation, ensure the refrigerant charge is sufficient.
4.2.2

Oil charging procedure

Copeland ZX Small refrigeration units are supplied with a compressor oil charge only. After
commissioning, the oil level should be checked and topped up as necessary.
NOTE: The oil level should be approximately halfway up the sight glass.
As mentioned in paragraph 2.6.1 "Qualified refrigerants and oils", Emerson recommends using one
of the following oil types:
▪ Emkarate RL 32 3MAF
▪ Mobil EAL Arctic 22 CC
Charging is done through the Schraeder valve located on the suction valve – see Figure 14 above.
4.3

Rotation direction of scroll compressors

Scroll compressors, like several other types of compressors, will only compress in one rotational
direction. Direction of rotation is not an issue with single-phase compressors since they will always
start and run in the right direction.
4.4

Maximum compressor cycle

Maximum permitted starts per hour: 10.
16
Service valves
Schraeder valves
AGL_Unit_ZX_Small_E_Rev03