SAFETY PRECAUTIONS
1.Check if an electric leakage occurs in the set.
2.When servicing current applying parts, unplug prior to servicing.
3.In case of testing with power injecting, wear rubber gloves to prevent electric shock.
4.If you use any appliances, check regular current, voltage and capacity.
5.Don'ttouch metal products in cold freezer room with wet hand. It may cause frostbite.
6.Prevent water flowing to electric elements in mechanical parts.
7.When sloping the set, remove any materials on the set, especially thin plate type(ex,: glass plates or books.).
8.When servicing evaporator part, wear cotton gloves without fail. It is to prevent wound by sharp fin of evaporator.
9.Leave a breakage freezing cycle to a heavy service center. The gas in cycle inside may soil ambient air.
SERVICING PRECAUTIONS
AIR RECHARGING IN COMPRESSOR
Test the refrigeration system by connecting it electrically before refilling operation. This is necessary to ascertain the function of the
Replace the filter and any damaged components. Unsolder and pull off the piece remaining inside the service tube and then attach an extension completely with male Hansen and last, solder it to the same tube again. (Figure 2)
It is necessary to execute the soldering operation with valve open so that the fumes caused by oil residue can come out freely without blowholes between two tubes during heating the point to be soldered.
The extension fitted with the male Hansen is connected to the female fitting of the vacuum pump tube. (Figure 3)
Air evacuating from the system begins as soon as the pump starts. The refrigeration system must be kept under vacuum until the reading on the
POINT TO BE CHARGE TUBE FEMALE
BROKENEXTENSION HANSEN
MALE
| HANSEN |
|
|
SERVICE TUBE | SOLDERING |
| PRESSURE |
EXTENSION | POINT |
| GAUGE |
Figure 1 | Figure 2 | Figure 3 | Figure 4 |
