Piping Installation; Piping Connections - Gree GMV-N140U/A-T Manuel D'installation Et D'utilisation

OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT

4.2 Piping Installation

4.2.1 Diagram of Piping Connection
1) Air handling unit
2) Connection pipe from expansion valve kit to air handling unit
3) Valve kit
4) Liquid pipe
5) Gas pipe
Notes:
A: When the air handling unit is installed at the top of the EXV box, vertical distance between
the bottom of the air handling unit to the EXV box is no more than 2 m; if the air handling unit is
installed under the EXV box, vertical distance between the bottom of the air handling unit to the
EXV box is no more than 2 m.
L: The length of liquid pipe between the air handling unit to EXV box is no more than 2 m.
L is to be considered as a part of the total maximum piping length. See installation manual of
the outdoor unit for piping installation.

4.2.2 Piping Connections

Make sure to install gas and liquid pipe diameters in function of the air handling unit capacity
class.
GMV-N140U/A-T
GMV-N280U/A-T
GMV-N560U/A-T
(*)Note:
The internal diameter of both inlet pipe and outlet pipe of EXV box for
Φ16.3mm. It needs engineering treatment on the scene if you want to connect liquid pipe of
Φ12.7mm( expanding the copper tube of Φ12.7mm or using a connection copper tube) in order to
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.
Model Capacity(kW)
9.0
11.2
14.0
22.4
28.0
45.0
50.4
56.0
Fig.4.2
Connection pipe
Gas pipe(mm)
Liquid pipe(mm)
Φ15.9
Φ15.9
Φ15.9
Φ19.05
Φ22.2
Φ28.6
Φ28.6
Φ28.6
11
Φ9.52
Φ9.52
Φ9.52
Φ9.52
Φ9.52
Φ12.7(*)
Φ15.9
Φ15.9
V-N560U/A-T is
GM