Gree DC Inverter Multi VRF

DC INVERTER MULTI VRF INSTALLATION
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Heat preservation
sheath of gas collection
tube (attachment)(for
gas tube)
Heat preservation
sheath of liquid inlet
tube (attachment) (for
liquid tube)
Flare nut
Wiring interface
Spanner
Liquid inlet tube
Gas collection tube
Torque wrench
Median sponge (attachment)
(entwine the wiring interface
with seal mat)
Thread fasten(x4)
Smear freeze motoroil
here
Fig.3
Form 1: The tightening torque needed for tightening nut
Diameter（Inch） Surface thickness（mm） Tightening torque (N.m)
Φ1/4’’
≥0.5 15-30 (N·m)
Φ3/8’’
≥0.71 30-40 (N·m)
Φ1/2’’
≥1 45-50 (N·m)
Φ5/8’’
≥1 60-65 (N·m)
Φ3/4’’
≥1 70-75 (N·m)
● Drainage hose
1. Installing the drain hose
☆ The diameter of the drainage hose should be equal or bigger than the connection pipe’s. (The
diameter of polythene pipe: Outer diameter 25mm Surface thickness ≥1.5mm)
☆ Drainage hose should be short and drooping gradient should be at least 1/100 to prevent the
formation of air bubble.
☆ If drainage hose cannot has enough drooping gradient, drain raising pipe should be added.
☆ To prevent bent of the drain hose, the distance between hoisting stands should is 1 to 1.5m.
× (wrong)
○(Correct) 1/100 or more gradient
1-1.5m
☆ Use the drainage hose and clamp attached. Insert the drainage hose to the drain vent, and then
tighten the clamp.
☆ Entwine the big sponge on the clamp of drainage hose to insulate heat.
☆ Heat insulation should be done to
indoor drainage hose.
Drain stepup pipe note
☆ The installation height of the drain
raising pipe should less than 280mm.
☆ The drain raising pipe should form a
Below 4mm
Sponge(attachment)
Clamp(attachment)
Clamp
Drain hose
Sponge (gray)