Haier BD-478A Manual do Utilizador descarregar pdf (Página 39)

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(2) Please keep the pliers, pipe cutting unit and Hansen valve clean, and

keep them away from grease dirt.

12.5.3 Procedure for filling equipment

(1) Preparation before use

① Visually inspect recovery machine for abnormalities, etc.

② Keep all valves closed to equipment until really to proceed.

(2) Evacuation

① Connect recovery machine hoses to system fittings

② Switch on power.

③ Switch on motor.

④ Open all related valves.

⑤ Observe the pointer of vacuum meter when it is accessing the mark –1.

⑥ Evacuation time shall not be less than 45 min.

⑦ After evacuation close valves.

MAINTENANCE SERVICE AND TROUBLE SHOOTING

Maintenance Service and Trouble Shooting

⑧ Switch off motor.

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Haier BD-478A Manual do Utilizador Página 39