Haier 2U18FS2ERA - Piping Vacuum Method

2-way valve
3-way valve
2-way valve
3-way valve
2-way valve
3-way valve
2-way valve
3-way valve
Iftherefrigerant of theairconditionerleaks,itisnecessarytodischargeallthe
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refrigerant. Vacuumize ¿rst, then
chargetheliquidrefrigerantintoairconditio
neraccordingtotheamountmarkedonthenameplate.
Please do not let other cooling medium, except speci¿ed one (R410A), or air
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enterintothecoolingcirculationsystem.
Otherwise,therewillbeabnormal
highpressureinthesystemtomakeitcrackandleadtopersonalinjuries.
Each indoor unit musts to be vacuume
d , according to the above steps.
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