Maintenance; Preparation; Work To Be Carried Out; Spare Parts Recommendation/Accessories - Danfoss BOCK HGX34e A Operating Manual

7 | Maintenance

7.1 Preparation

WARNING! Before starting any work on the compressor:
7.2 Work to be carried out
Oil change: In principle, an oil change is not mandatory if the system is correctly manufactured
and operated.
However, based on decades of experience we recommend that the following oil change/service
work is carried out:
- First oil change during the first maintenance system.
- Then after every 10,000 – 12,000 operating hours, though no more than
3 years, cleaning oil and suction filter at the same time.
Annual checks: Oil level, tightness, running noise, pressures, temperatures, function of auxiliary
devices such as a oil sump heater, pressure switch.
7.3 Spare parts recommendation/ accessories
Available spare parts and accessories can be found on our compressor selection tool under
vap.bock.de as well as at bockshop.bock.de.
Only use genuine Bock spare parts!
7.4 Lubricants / oil
The oil type filled as standard in the factory is marked on the name plate, and this should always be
used, even in the case of maintenance units. Alternative oil types can vary significantly in quality
due to additives or inferior raw materials by the manufacturer. Validation within the compressors entire
operating limits can not be guaranteed, if such alternative oil types are used. It is for this reason,
that we only recommend the use of oil from Bock! Bock assumes no liability for any damage arising
from alternative oil types.
Refrigerants
HFKW
(z.B. R134a, R407, R 404A, R513A)

7.5 Decommissioning

Close the shut-off valve on the compressor. Drain the refrigerant (it must not be discharged directly
into the environment) and dispose of it according to the regulations. When the compressor is
depressurised, undo the fastening screws of the shut-off valves. Remove the compressor using an
appropriate hoist. Dispose of the oil inside in accordance with the valid national regulations.
© Danfoss | Climate Solutions | 2024.07
Switch off the compressor and secure it to prevent a restart.
Relieve compressor of system pressure.
Prevent air from infiltrating the system!
After maintenance has been performed:
Connect safety switch.
Evacuate compressor.
Release switch lock.
Bock standard oil types
BOCK lub E55
AQ464037893946en-IN0201 | 23
D
GB
F
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