Gree GUHD series - Page 143

80DWFK6HULHV'&
,QYHUWHU6HUYLFH0DQXDO
140
4.Remove the old
expansion valve.
Remove the old expansion valve.
5. Install a new electric
expansion valve and
connect it to system
A.Weld the electric expansion valve
B.During soldering, charge nitrogen
with pressure of 0.5±0.1kgf/cm
2
(relative pressure)
C.Do not burn the surrounding
material during heating.
6.Establish vacuum
inside the system
through liquid valve.
Ɣ(VWDEOLVKYDFXXPLQVLGHWKH
system through liquid valve.
7.Recharge the
refrigerant to the
system through liquid
valve.
Ɣ5HFKDUJHWKHUHIULJHUDQWWRWKH
system through liquid valve.
Ɣ7KHFKDUJHYROXPHPXVWEH
identical to the indications on
nameplate.