GE FHV5SGWW Service Manual page 56

MAINTENANCE SERVICE AND TROUBLE SHOOTING
Maintenance Service and Trouble Shooting
(3) Test pack: Use the rectangle packs of following dimensions as the load
of freezer.
(4) Table 6-2 Test packs for freezer performance
Dimensions (mm)
Small
25×50×100
Middle
50×100×100
Big
50×100×200
The contents of test packs are (take 1000g pack as the datum):
hydroxyethlmethylcellulose 230g; water 764.2g; sodium chloride 5g;
parachlorometacresol 0.8g. The freezing point of filling of pack is -1℃, its
thermal property is similar to lean beef.
(5) Temperature measuring gauge: The measuring of temperature normally
use platinum resistor. There are two types:
Put the platinum resistor directly into test pack (M pack) when measuring
a. Its temperature;
b. Insert the platinum resistor into the center of four tin electroplated
copper columns, the diameter and height of column is the same 15.2mm.
The measuring equipment is temperature-measuring bridge with the
accuracy of +-0.3K.
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Freezer
Mass (g)
125 In the geometrical center of 5oog
500 pack, there is a thermal element;
1000 this pack is called M pack.
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