Protect Air Conditioning Circuit And Components From Moisture When Carrying Out Repair Work - Ah83.30-N-0005-01A

Model 906 except code Z29 (James Cook touring camper, NAFTA) except code ZU8 (National version for USA) 

Except Sprinter minibus 

Do not carry out repair operations on the air conditioning circuit in the open air during damp weather.

Otherwise moisture in the refrigerant circuit reduces the system's refrigeration output and leads to damage to the components.

After disconnecting or unscrewing refrigerant lines, immediately seal all connection apertures air tight with suitable stop plugs.

The fluid reservoir or the desiccant cartridge must be replaced:

• If the refrigerant circuit has been opened.
• If the refrigerant circuit has started to leak or was emptied completely.
• If the refrigerant is contaminated (color dark gray to black).
• If the refrigerant compressor has seized.
• If the refrigerant circuit has been damaged in an accident.

Always store all spare components in a dry, sealed-off area. Do not remove stop plugs in new components until just before they are installed.

Check desiccant cartridge packaging for damage. Dispose of desiccant cartridges with damaged packaging.

Install the desiccant cartridge no later than 20 minutes after opening the packaging.

Further protection against moisture is provided by carefully evacuating the air conditioning system following repair operations. By generating vacuum in the system, the evacuation process removes any moisture that might have penetrated into the system.