(4)When seal plug of compressor is removed, if there is no gas flowing sound (no pressure), the compressor shall not be used.

(5)Compressor has no seal plug it cannot be used.

(6)There should be no grease adhered to service operator’s hands.

(7)The unpacking of the filter dryer of freezer should be opened right before use.

12.4 Application and maintenance of freezer

12.4.1 Product characters

(1)Completely green environmental bed type freezer uses R134a as the refrigerant, which is recognized internationally. It has an ozonosphere depletion coefficient ODP=0.

New climate type design: commercial freezer uses wide temperature zone design. At 38(100°F) high temperature, the freezer can start and stop freely.

(2)New refrigeration system design: it takes dual direction refrigeration system, thus increases refrigeration speed and prolongs compressor life.

MAINTENANCE SERVICE AND TROUBLE SHOOTING Maintenance Service and Trouble Shooting

12.4.2 Notice for use

(1) The freezer should level, the tilting angle when moving shall not be

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Haier BD-478A service manual Application and maintenance of freezer, Product characters