GREE GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
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hand-operated electric drill to drill holes and fasten the canvas casing onto the unit through steel
bar by using tapping screws.
c) Pull up the canvas casing reversely and use the steel bar to press the canvas casing tightly onto
the counter flange of the steel-plate ventilating duct. Use a hand-operated electric drill to drill
holes and fasten the parts by using tapping screws.
d) Use the tin foil to seal the joints and check the joints' reliability.
Note:
Remove the grille on the top case when connecting an ODU to static pressure ventilating duct;
otherwise, the air volume, especially the unit operating performance will be affected. For method 2, since
drills are required on the top case, the powder coated protective layer on the top case will be damaged.
As a result, the anti-corrosion performance of the unit top case will be reduced.
Step 1 Step 2
Step 3 Step 4
(6) When the effective area of air intake is less than 70% of the total air intake area of all ODUs, an
induced draft fan is also required. The total air input of induced draft fan should be no less than
80% of the total supply air rate.
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