Dometic Frigo DC Service Manual page 4

Flushing the transport refrigeration system
No. in fig. 1
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3 Flushing the transport refrigeration system
Flushing the Dometic Frigo DC transport refrigeration system is mandatory if the compressor is
mechanically damaged. Flushing may also be necessary to completely remove refrigerant oil
remaining in the system.
During the flushing process, refrigerant oil residues and mechanical contaminants are removed
from the refrigerant circuit.
3.1 General instructions for flushing
Additional equipment needed for flushing the transport refrigeration system:
• A/C service station with rinsing tank
CAUTION!
• The contact with live electrical components can cause injuries. There is a risk of
electric shock when connecting the electrical components. Disconnect the battery
before starting installation work. Make sure that no voltage is transmitted to the
electrical components.
• The transport refrigeration system may only be flushed by qualified personnel of
a specialist company who are familiar with the applicable guidelines and safety
regulations.
• Improper flushing of the transport refrigeration system can endanger the safety of
the user and lead to irreparable damage to the unit.
• The manufacturer assumes no liability for malfunctions and for the safety of the
transport refrigeration system, in particular for personal injury and/or damage to
property, if the transport refrigeration system is not flushed in accordance with these
service instructions.
• Always wear the recommended protective clothing (e. g. safety goggles, gloves).
NOTE!
• To ensure optimal flow during flushing, disassemble components and bridge them
with adapters (see chapter 4.1 or chapter 5.1).
• Replace hose lines or components that cannot be integrated into the rinse cycle or
4
Amount Description
1 Magnetic valve opener
1 Adapter for high pressure side
1 Adapter for low pressure side
1 Elbow adapter for expansion valve
10 O-ring 7/8"
1 Adapter SAE O-ring 5/16"
10 O-ring 5/16"
1 Adapter SAE O-ring 7/8"
10 Cap 1/4" SAE
Frigo DC
Ref. no.
8885300259
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8881500010
8881400739
8881500008
8881400740
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EN