3) Charge of refrigerant | e. |
Stop vacuum pump operation. |
|
Open the valve of tank to charge refrigerant |
|
with approx. 0.2~0.5 Mpa/G. |
|
4) Pipe pinching in High pressure side | f. | |
Charge refrigerant until pressure is | ||
| ||
reached to 1.6MPa/G. |
| |
Close the valve of tank. |
| |
Hold charging pipe by pliers to pinch it off |
| |
by pinch pliers. (See picture f.) |
|
Pinch pliers
5)Charge refrigerant in Low pressure side Open the valve again to charge refrigerant in Low pressure side.
Charge until you can ensure pressure should be 0.1 Mpa/G with unit running.
Turn the tank upside down to charge refrigerant without remains. (See
6)Pinching pipe
Measure the weight of tank after charged. Form the pipe which was pinched off.
Apply welding to the points of
pipe which were pinched to prevent being broken.
g.
h.
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