Piping Work Requirements - Gree GMV-140WL/A-T User Manual

DC Inverter Multi VRF System User Manual
Please keep the unit away from
inflammable,
corrosive gas or waste gas.
ODU and IDU should stay as
close as possible to shorten the
length of refrigerant pipe and
reduce bend angles.
If the ODU is totally surrounded by walls, please refer to the following figures for space
dimension:

3.3 Piping Work Requirements

Refer to the table below for piping work requirements:
Outer diameter (mm/inch)
explosive and
R410A Refrigerant System
Φ6.35(1/4)
Φ9.52(3/8)
Φ12.70(1/2)
Φ15.9(5/8)
Φ19.05(3/4)
Fig.2
5
Make sure the location has space
for heat exchange
maintenance so that unit can
operate reliably with
ventilation.
Select a location which is out of
children's reach. Keep the unit
away from children.
Wall thickness(mm)
≥0.8
≥0.8
≥0.8
≥1.0
≥1.0
and
good