Gree GMV-280WM/E1-X User Manual

GMV DC Inverter VRF
33
(1) Pipeline charging amount
Pipeline charging amount A= ∑Liquid pipe length×refrigerant charging amount of every 1m
liquid pipe
Diameter of liquid
pipe (mm)
Φ28.6
Φ25.4
Φ22.2
Φ19.05
Φ15.9
Φ12.7
Φ9.52
Φ6.35
kg/m
0.680
0.520
0.350
0.250
0.170
0.110
0.054
0.022
(2) ∑Refrigerant charging amount B of every module
Refrigerant charging amount B of every
module(kg)②
Module capacity(kW)
IDU/ODU rated capacity
collocation ratio C ①
Quantity of
included IDUs
22.4
28.0
33.5
40.0
45.0
50.4
56.0
61.5
50%≤C≤70%
＜4
0
0
0
0
0
0
0
0
≥4
0.5
0.5
0.5
0.5
0.5
0.5
1.0
1.5
70%＜C≤90%
＜4
0.5
0.5
1.0
1.5
1.5
1.5
2.0
2.0
≥4
1.0
1.0
1.5
2.0
2.0
2.5
3.0
3.5
90%＜C≤105%
＜4
1.0
1.0
1.5
2.0
2.0
2.5
3.0
3.5
≥4
2.0
2.0
3.0
3.5
3.5
4.0
4.5
5
105%＜C≤135%
＜4
2.0
2.0
2.5
3.0
3.0
3.5
4.0
4.0
≥4
3.5
3.5
4.0
5.0
5.0
5.5
6.0
6.0
Note:
①
IDU/ODU rated capacity collocation ratio C = Sum of rated cooling capacity of indoor
unit / Sum of rated cooling capacity of outdoor unit
②
If all of the indoor units are fresh air indoor units, the quantity of refrigerant added to
each module is 0kg.
③
If outdoor air processor is connected with normal VRF indoor unit, adopt the perfusion
method for normal indoor unit for perfusion.
For example1:
Outdoor unit consists of one 28kW module and one 45kW module. Five 14kW duct type
units are used as indoor units.
IDU/ODU rated capacity collocation ratio C= 140×5/(280+450)=96%. The quantity of
included IDUs is more than 4 sets. Please refer to the above table.
Additional refrigerant quantity B for 28kW module is 2.0kg.
Additional refrigerant quantity B for 45kw module is 3.5kg.
So, ∑Refrigerant charging amount B of every module=2.0+3.5=5.5kg
Suppose the Pipeline charging amount A=∑Liquid pipe length×refrigerant charging amount
of every 1m liquid pipe=20kg
Total refrigerant charging amount R=20+5.5=25.5kg
For example 2:
Outdoor unit is a 45kW module and the indoor unit is a 45kW fresh air unit. The quantity (B)
of refrigerant added to this module is 0kg.
So, ∑B (Quantity of refrigerant added to each module) = 0kg
Suppose that A (Quantity of refrigerant added to connection pipe) = ∑Length of liquid pipe
x Quantity of refrigerant added to liquid pipe per meter) = 5kg

Gree GMV-280WM/E1-X Specifications

General

Brand	Gree
Model	GMV-280WM/E1-X
Category	Air Conditioner
Language	English