Information about semi-hermetic compressors for hydrocarbons. Hydrocarbons are another natural alternative besides CO2 and primarily established in the field of supermarket refrigeration.

1. Bock HC Compressors
Semi-hermetic Compressors for Hydrocarbons
GEA Refrigeration Technologies

2. Semi-hermetic Compressors for Hydrocarbons
Another natural alternative
besides CO2
Flammability
Established in the field of
 safety related modifications Hydrocarbons supermarket refrigeration
of the compressor are
necessary
Bock HC Compressors GEA Refrigeration Technologies

3. Differences to a standard compressor
Bock HC Compressors GEA Refrigeration Technologies

4. Overview hydrocarbons
Refrigerant Name ODP GWP23 Safety group1 Critical value
(Formula) [R11=1,0] [CO2=1,0] [kg/m³]2
R290 Propane 0 3 A3 0,008
(C3H8)
R1270 Propylene 0 3 A3 0,008
(C3H6)
R600a Isobutane 0 3 A3 0,011
(C4H10)
1 Classification according to EN378-1 or ASHRAE 34
2 According to EN 378-1
3 Time horizon 100 years - according to IPCC II (1996)  Basis for Kyoto protocol
Bock HC Compressors GEA Refrigeration Technologies

5. Special features of hydrocarbons
Heat protection
thermostat as standard
Motor protection MP10
Oil sump heater as
for installation in the
standard
switch cabinet
Special oil charge
Bock HC Compressors GEA Refrigeration Technologies

6. Important notes
Compressors filled with hydrocarbons
are to be operated by trained Additional important instructions can
specialists only be seen in the assembly instructions
An additional agreement has to be
signed: hydrocarbons as refrigerant
(GEA Bock-Art. No. 09996)
Bock HC Compressors GEA Refrigeration Technologies

7. Type key – Compressors for Hydrocarbons
Bock HC Compressors GEA Refrigeration Technologies