Gree GMV6 DC Inverter VRF Units Service Manual
184
2.2 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
indoor unit
22.4
28.0 33.5 40.0 45.0 50.4 56.0 61.5 68.0
50%≤C≤70%
<4
0
0
0
0
0
0
0
0
0
≥4
0.5
1.0
1.0
1.0
1.0 0.5 1.0 1.5
1.5
70%<C≤90%
<4
0.5
1.0
1.0
2.0
2.0 1.5 2.0 2.0
2.0
≥4
1.0
1.0
1.0
2.0
2.0 2.5 3.0 3.5
3.5
90%
<
C≤105%
<4
1.0
1.0
1.0
2.0
2.0 2.5 3.0 3.5
3.5
≥4
2.0
2.0
2.0
4.0
4.0 4.0 5.0 5.0
5.0
105%<C≤135%
<4
2.0
2.0
2.0
3.0
3.0 3.5 4.0 4.0
4.0
≥4
3.5
4.0
4.0
5.0
5.0 5.5 6.0 6.0
6.0
Notes:
①
Rated capacity configuration rate of indoor unit and outdoor unit C = sum of indoor unit rated
cooling capacity / sum of outdoor unit rated cooling capacity.
②
If all indoor units are all fresh air indoor units, the added refrigerant amount for each module B
is 0kg.
③
If all fresh air indoor units are mixed with the general VRF indoor units, charge the refrigerant
according to the refrigerant-charging method of the general indoor unit.
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=14.0×5/(28.0+45.0)=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 2.0 kg.
Additional refrigerant quantity B for 45kw module is 4 kg.
So, ∑Refrigerant charging amount B of every module=
2.0+4=6 kg.
Suppose the Pipeline charging amount A=∑Liquid pipe length×refrigerant charging amount of every
1m liquid pipe=20kg.
Total refrigerant charging amount R=20+6=26kg.
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,
∑Refrigerant charging amount B of every module
= 0kg.
Suppose the Pipe
line charging amount A=∑Liquid pipe length×refrigerant charging amount of every
1m liquid pipe = 5kg.
Total refrigerant charging amount R = 5+0=5kg.
Modular combination of outdoor unit subjects to combinations that is currently available.
Summary of Contents for GMV6 Series
Page 305: ...JF00304129 ...
