Cleaning And Maintenance; Before Maintenance; Cleaning The Unit; Cleaning The Filters - Zanussi ZS12V70CCHI Service Manual

• Check the pressure indicated by the pressure gauge. (low pressure side)
• Standard pressure should be 7.5-10.5 kg/cm2 in a regular, high operation mode.
• Open the refrigerant tank and fill with refrigerant until the rated pressure is reached.
• It is recommended not to pour the refrigerant in too quickly, but gradually while operating a pressure valve
• Stop operating of the air conditioner
• Close the 3-way valve, disconnect the pressure gauge, and open the 3-way valve again.
• Close the cap of each valve.
Gas Leakage Check
1. Soap water method
Apply a soap water or a liquid neutral detergent on the indoor unit connection or outdoor unit connections (A: Low side valve, B:
High side valve valve C and D are ends of indoor unit connection) by a soft brush to check for leakage of the connecting points of
the piping. If bubbles come out, the pipes have leakage point.
Indoor unit
check points
D
Outdoor
B
Unit
2-way
valve
A
3-way
valve
2. Leak detector
Use the leak detector to check for leakage.

7. CLEANING AND MAINTENANCE

7.1 Before Maintenance

Turn the system off before cleaning. To clean, wipe with a soft, dry cloth. Do not use bleach or abrasives.
• Power supply must be disconnected before cleaning the indoor unit.
• A cloth dampened with cold water may be used on the indoor unit if it is very dirty. Then wipe it with a dry cloth.
• Do not use a chemically treated cloth or duster to clean the unit.
• Do not use benzine, thinner, polishing powder, or similar solvents for cleaning. These may cause the plastic surface to crack or
deform.
• Never use water hotter than 40ºC to clean the front panel, it could cause deformation and discolouration.

7.2 Cleaning the Unit

Wipe the unit with a soft dry cloth only. If the unit is very dirty, wipe it with a cloth soaked in warm water.

7.3 Cleaning the Filters

A clogged air filter reduces the cooling efficiency of this unit. Please clean the filter once every month.
Liquid pipe
C
Gas pipe
Outdoor unit
check points
25