FISCHER [CF] EASY User Manual page 81

There is one additional liquid line Schraeder connection, located in the compressor chamber on
the left-hand side below the filter drier. This connection can also be used for servicing or
charging.
Recommendation is to break vacuum in the system with partial charge of refrigerant, then start
the system.
For charge adjustment it is recommended to check the liquid sight glass just before the
expansion valve.
There is an additional connection port (7/16"-thread) below the filter drier inside the compressor
compartment. It is also possible to use this connection on the liquid line for charging or servicing.
Figure 21: Liquid line service port
4.2.2 Oil charging procedure
[ CF ] EASY condensing units are supplied only with a compressor oil charge. After
commissioning, the oil level should be checked and topped up if necessary.
NOTE: The oil level should be approximately halfway up the sight glass.
Emerson Climate Technologies recommends charging the oil with 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.
4.2.3 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 proper direction. Three-phase compressors are protected against
wrong rotation field by help of the unit controller.
4.2.4 Maximum compressor cycle
Maximum permitted starts per hour: 10.
already takes into account the maximum permitted starts and stops of the compressor and also
controls running time and minimal downtime. It is recommended to change these settings only in
exceptional cases.
4.3 Checks before starting & during operation
IMPORTANT
Liquid valves not fully opened! Liquid trap! Both valves should be fully
opened on the liquid line, in order to prevent trapping liquid.

Check that all valves are fully opened.

Set the essential parameters of the electronic controller in the programing level 1
(Refrigerant type, Compressor cut-out/in settings (CFDE only), Fan setpoint....) according to
the required application.

We recommend to check the oil level in compressor after starting and operation conditions
have stabilised, and to add oil if needed to ensure a sufficient oil level (halfway up the sight
glass).
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The factory setting of the system controller XCM25D
C6.1.6/0513-0515/E