
Refrigerator Model:HBC-70/200
(
India
)
55
MAINTENANCE SERVICE AND TROUBLE SHOOTING
(4) Test pack: Use the rectangle packs of following dimensions as the load
of refrigerator.
(5) Table 6-2 Test packs for refrigerator performance
Dimensions (mm) Mass (g)
Note
Small
Middle
Big
25
×
50
×
100
50
×
100
×
100
50
×
100
×
200
125
500
1000
In the geometrical center of 5oog
pack, there is a thermal element;
this pack is called M pack.
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.
PDF created with pdfFactory trial version
www.pdffactory.com