Gree Ultra Heat GMV-VQ72W/A-F, Service Manual

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Ultra Heat GMV VRF Technical Service Manual_Heat Recovery Serial INSTALLATION
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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
(1) 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.
(2) Lifting method
When carrying the suspended, unit pass the ropes under the unit and use the two suspension points
each at the front and rear.