Gree GMV-VQ280WM/C-X Owner's Manual page 40

Step
Step 4
Step 5
3.6 Vacuum and Drying of Refrigeration System
3.6.1 Air Tightness Test
(1) Notices
1) The range of test pressure gauge for R410A system should be above 4.5MPa.
2) Record the pressure gauge readings, ambient temperature and test time.
3) Pressure correction: The temperature changes by 1℃, and the pressure changes by 0.01
MPa.
Photo
36
GMV Heat Recovery DC Inverter VRF
Operation instruction
① Reinstall the top cover
and press the canvas
sleeve tightly;
② Fasten the top cover to
the unit with
self-tapping screws.
① Pull the canvas casing
upside down and press
it on the butt flange of
the steel pipe
ventilation pipe with
steel bars;
② Drill holes with the
manual drill and fix
them with
self-tapping screws;
③ Seal the two butt joints
with tinfoil panel and
check the reliability of
the connection.
Note
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