Hitachi RAC-25WSA RAC25WSA 用户手册
产品代码
RAC25WSA
11-3
Gas Leakage Inspection
Please use gas leakage detector to check if leakage occurs
at the connection of Flare nut as shown on the right.
at the connection of Flare nut as shown on the right.
11.2. RECOVERY OF REFRIGERANT
DURING RELOCATION OR
UNINSTALLING OF UNIT.
UNINSTALLING OF UNIT.
1) Switching on the outdoor unit’s service switch will run
the forced cooling operation
2) After operating for around 5 minutes, rotate the service
valve spindle located at the side of the small pipe rim,
in a clockwise direction to achieve a full shut off.
in a clockwise direction to achieve a full shut off.
3) After operating for around 2~3 minutes, rotate the
service valve spindle located at the side of the large
pipe rim, in a clockwise direction to attain a full shut
off.
pipe rim, in a clockwise direction to attain a full shut
off.
4) Immediately stop the forced cooling operation and
switch off the power supply.
5) Use a spanner or similar tools to tighten fully all valve
cap and valve core cap to their specified torque
values.
values.
6) Install and tighten the seal caps and flared nuts on all
connecting mouths of each and every piping installed.