Gree DC Inverter Multi VRF Service Manual page 135

DC INVERTER MULTI VRF
The diameter of the drain hose should be equal or bigger than the connection pipe's. ( The diameter of
polythene pipe: Outer diameter 25mm Surface thickness
Drain hose should be short and drooping gradient should at less 1/100 to prevent the formation of air
bubble.
If drain hose cannot has enough drooping gradient, drain raising pipe should be added.
To prevent bent of the drain hose, the distance between hoisting stand should is 1 to 1.5m.
(Correct) 1/100 or more gradient
Use the drain hose and clamp attached. Insert the drain
hose to the drain vent, and then tighten the clamp.
Entwine the big sponge on the clamp of drain hose to
insulate heat.
Heat insulation should be done to indoor drain hose.
Drain stepup pipe note
The install height of the drain raising pipe should less
than 280mm.
The drain raising pipe should form a right angle with the unit, and distance to unit should not beyond
300mm.
Within 300mm
Drain hose
Ceiling
Instruction
The slant gradient of the attached drain hose should be within 75mm so that the drain hole doesn't has to
endure the unnecessary outside force.
1.5mm)
Sponge (gray)
Roof
Drain raising
hose
Clamp(attachment)
INSTALLATION
(wrong)
Sponge(attachment)
Clamp
Clamp(attachment)
Drain hose
Hoisting stand
below
Below 4mm
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