Haier BD-478A service manual 12.8Measuring technology of freezer performance parameter

A=l1/2 +d b=l2/2 +d c=l3/2 +d

Take d=1m

Then S=4(ab+bc+ac)

The positions of measuring points are shown in table 4.

12.8Measuring technology of freezer performance parameter

12.8.1 Measuring content

The measuring technology of freezer includes measurement of refrigeration property and measurement of safety requirement of electrical parts. The following items must be done before ex-factory: (1) appearance requirement; (2) cooling speed; (3) leakage of current; (4) insulation resistor (cool state); (5) electrical intensity; (6) starting performance; (7) ground resistor; (8) sealing performance of refrigeration system; (9) documents and accessories.

Spot tests for ex-factory are: (10) store temperature; (11) insulation resistor

(wet state and hot state); (12) electrical intensity (wet state and hot state);

MAINTENANCE SERVICE AND TROUBLE SHOOTING

Maintenance Service and Trouble Shooting

(13) Electricity consumption; (14) noise and vibration; (15) electroplated

parts; (16) painting cover; (17) protection of anti-electric shock; (18) cables; (19) door opening force; (20) freezing ability; (21) rising up speed of

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