Limits Of Application; Areas Of Application At Lg Compressors; Refrigerants; Oil Charge - BOCK HA44e Assembly Instructions Manual

4 | Areas of application
Maximum permissible operating
pressure (LP/HP)

5 | Areas of application at LG compressors

5.1 Refrigerants

• HFO refrigerants:
5.2 Oil charge
The compressors are factory-charged with the following oil type:
LG Compressors: BOCK lub E55
5.3 Limits of application
ATTENTION Compressor operation is possible within the operating limits.
Maximum permissible operating
pressure (LP/HP)
: 19/28 bar
1)
R455A, R454C
These can be found in Bock compressor selection tool (VAP) under
vap.bock.de. Observe the information given there and the follo-
wing notes:
- Min. pressure gas temperature ≥ 50°C (min. 20K over condens-
ing temperature). Suction gas superheating on compressor ent-
rance should be min. 7 - 10 K, must be increased if necessary
- Min. oil temperature ≥ 30°C.
- Operation in the vacuum range is not permitted.
During operation in the vacuum range, there is a danger of air
entering on the suction side. This can cause chemical reactions,
pressure rise in the condenser and an excessive pressure gas tem-
perature as well as shifting of the refrigerant ignition limit into the
critical range. Avoid absolutely any entry of air!
Use a low pressure switch! Select a shut-off point min. 50 Pa higher
than the prevailing surrounding pressure!
: 19/28 bar
1)
LP = Low pressure HP = High pressure
1)
LP = Low pressure HP = High pressure
1)
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