Performing Leak Tests - Samsung ACH1800E Technical Manual

3
INSTALLATION

Performing Leak Tests

3-8. Performing Leak Tests
G Before completing the installation (insulation of the hose and piping), you must check that there are no gas
leaks.
To check for gas leaks on the...
Indoor unit
Outdoor unit
CAUTION
The CH✴✴CA models need a new refrigerant, R407C.
Thus, when refrigerant leakage occurs in use, you must purge and
make vacuous with a vacuum pump before adding the refrigerant.
Then put the optimal quantity of refrigerant newly.
In addition, the refrigerant must be added in liquid phase.
44 | SAMSUNG
Then, using a leak detector,
check the...
Flare nuts at the end of sections A
and B.
Valves on sections C and D.
<Cassette Type>
B
<Duct Type>
A
B
C
A
D