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IOM ACHA-ACHBA_201a1201_208000_180901_EN
ACHA / ACHBA
PACKAGED COMPACT
HORIZONTAL AIR - AIR
MAINTENANCE
REFRIGERANT CHARGE
In case it is necessary to add or recover refrigerant, use an electronic scale that is suitably reinforced and prepared to
withstand the handling of the refrigerant bottle.
The charge must be made in LIQUID condition.
The inlet of liquid refrigerant R-410A in the empty tubes causes temperatures below 0ºC until the internal pressure
reaches 7 bars.
Leaks should be repaired immediately.
Never overcharge the system.
Never use compressor as vacuum pump.
If leakage symptoms appear during the operation, it is necessary to leak test.
To find small leaks, you will need a detector for HCF.
If gas leak is detected is necessary to remove and recuperate complete refrigerant charge. Pressurize system with
dry nitrogen. If leakage has been not detected break a vacuum, dehydrate and charge with refrigerant.
Do not reintroduce used refrigerant, send it to an authorized recycling location.
Never use oxygen to pressurize system or purge lines for leak test. Oxygen reacts violently with
oil, which can cause an explosion resulting in damage, personal injury or death.
WARNING!
If it is necessary to make brazing operation, first fill the circuit with dry nitrogen. Burning
refrigerant 410A results in toxic gas emissions.
WARNING!
