YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
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For large-size units, there are maintenance ports for liquid valve and gas valve. During evacuation, you may connect
the two hoses of the branch valve assembly to the maintenance ports to speed up the evacuation.
Adding Refrigerant
See the following table for the amount of additional refrigerant.
Model
Standard Pipe Length
Unnecessary Charge
Pipe Length
Additional Refrigerant Amount
for Extra Pipe
VRUO-2436HP-U2B(54)
7.5m
≤9.5m
54 g/m
24.6 ft.
≤ 31.68 ft.
1.9 oz. / 3.28 ft.
VRUO-4860HP-U2B(54)
7.5m
≤9.5m
54 g/m
24.6 ft.
≤ 31.68 ft.
1.9 oz. / 3.28 ft.
Installation of Drain Pipe
Outdoor Side Drainage Pipe
1.
If the outdoor unit is underneath the indoor unit, arrange the pipeline according to the following diagram.
1) Drain hose should be placed on the ground and its end should not be immersed into water. The whole pipeline should
be supported and fixed onto the wall.
2) Wind the insulating tape from bottom to top.
2. The whole pipeline should be wound with insulating tape and fixed onto the wall with saddles.
If the outdoor unit is above the indoor unit, arrange the pipeline according to the following diagram.