Gree GMV series User Manual

GMV DC Inverter VRF
16
R410A Refrigerant System
Allowable Value m(ft.)
Fitting Pipe
Difference between the pipe length from the
first branch of IDU to the farthest IDU and the
pipe length from the first branch of IDU to the
nearest IDU
≤40(131-1/4)
L10-L11
Equivalent length from the first branch to the
furthest piping (1)
≤40(131-1/4)
L6+L7+L8+L9+j
Height difference
between outdoor unit
and indoor unit
Outdoor unit at upper(2)
≤90(295-1/4)
——
Outdoor unit at lower(2)
≤90(295-1/4)
——
Height difference between indoor units
≤30(98-2/4)
——
Maximum length of Main pipe(3)
＜
90(295-1/4)
L1
From IDU to its nearest branch (4)
≤40(131-1/4)
a,b,c,d,e,f,g,h,i,j
(1) Normally, the pipe length from the first branch of IDU to the farthest IDU is 40m
(131-1/4ft.). Under the following conditions, the length can reach 90m (295-1/4ft.).
1) Actual length of pipe in total: L1+L2x2+L3x2+L4x2+…+L9x2+a+b+…+i+j≤1000m
(3280-3/4ft.).
2) Length between each IDU and its nearest branch a, b, c, d, e, f, g, h, i, j≤40m
(131-1/4ft.).
3) Difference between the pipe length from the first branch of IDU to the farthest IDU and
the pipe length from the first branch of IDU to the nearest IDU: L10-L11≤40m
(131-1/4ft.).
(2) When the maximum length of the main pipe from ODU to the first branch of IDU is≥90m
(295-1/4ft.), then adjust the pipe size of the gas pipe and liquid pipe of main pipe
according to the following table.
Outdoor Model
Gas pipe size mm(in.)
Liquid pipe size mm(in.)
GMV-72WM/B-F(U)
No need to enlarge pipe size
No need to enlarge pipe size
GMV-96WM/B-F(U)
No need to enlarge pipe size
Φ12.7(1/2)
GMV-120WM/B-F(U)
No need to enlarge pipe size
Φ15.9(5/8)
GMV-144WM/B-F(U)
Φ34.9(1-3/8)
Φ15.9(5/8)
GMV-144WM/B1-F(U)
Φ34.9(1-3/8)
Φ15.9(5/8)
GMV-168WM/B1-F(U)
Φ34.9(1-3/8)
Φ19.05(3/4)
GMV-168WM/B-F(U)
Φ34.9(1-3/8)
Φ19.05(3/4)
GMV-192WM/B-F(U)
Φ34.9(1-3/8)
Φ19.05(3/4)
GMV-216WM/B-F(U)
Φ34.9(1-3/8)
Φ19.05(3/4)
GMV-240WM/B-F(U)
No need to enlarge pipe size
Φ19.05(3/4)
GMV-264WM/B-F(U)
No need to enlarge pipe size
Φ22.2(7/8)
GMV-288WM/B-F(U)
No need to enlarge pipe size
Φ22.2(7/8)
GMV-312WM/B-F(U)
No need to enlarge pipe size
Φ22.2(7/8)
GMV-336WM/B-F(U)
No need to enlarge pipe size
Φ22.2(7/8)

Gree GMV series Specifications

General

Type	Variable Refrigerant Flow (VRF)
Compressor Type	Inverter Scroll Compressor
Refrigerant	R410A
Energy Efficiency	High Efficiency
Control	Centralized control, individual control
Operating Temperature Range (Heating)	24°C
Noise Level (Indoor Unit)	19 - 45 dB(A)