Gree A Series - Page 132

127
3. Desolder
connection
pipes.
(1)Desolder connection pipes
and then disconnect them with
the main body of the valve;
(2)Do charge nitrogen during de-
soldering;
(3)Protection measures should
be taken during soldering to
prevent surrounding objects
from being burnt out.
4. Take out the
main body.
Take out the main body of the
electrostatic expansion valve.
5. Replace it
with a new one.
(1)Solder pipes;
(2)Do charge nitrogen during
soldering;
(3)Protection measures should
be taken during soldering to
prevent surrounding objects
from being burnt out.
6. Tighten coils,
pipe clamps
and rubber
pads; vacuum
the system;
recharge
refrigerant and
then put back
the panel.
(1)The bulge of the coil should
match with the recess of the
main body of the valve;
(2)Keep the vacuum degree to —
1.0bar. Vacuuming period
would be longer for the
repaired unit;
(3)Charged refrigerant should be
the same as that stated at the
nameplate;
(4)Power off the unit and then
power it on again;
(5)Put back the panel.
A Series Modular-type Air-cooled (Heat Pump) Chiller