25
Refrigerant Charging and Test Run
Note:
☆
The mass of refrigerant in the system when delivered from manufacturer does not include the
mass of additional refrigerant needed by the liquid pipe connecting the outdoor unit ,indoor unit
and Hydro-box.
☆
As the length of the connecting pipe is decided on site, the amount of additional refrigerant shall be
decided depending on the size and the length of the liquid pipe used on site.
2. One part of Mass of Additional Refrigerant Calculating Method (Based on the Liquid Pipe).
Mass of Additional Refrigerant to Be Filled =∑ Length of Liquid Pipe × Amount of Additional Refrigerant
to Be Filled Per Meter of Liquid Pipe
Amount of Additional Refrigerant to Be Filled Per Meter of Liquid Pipe(kg/m)
Φ22.2
Φ19.05
Φ15.9
Φ12.7
Φ9.52
Φ6.35
0.35
0.25
0.17
0.11
0.054
0.022
3. Another part of Mass of Additional Refrigerant Calculating Method (Based on the Hydro
-box
capacity
Mass of Additional Refrigerant to Be Filled =∑ capacity of Hydro
-box
× Amount of Additional
Refrigerant to Be Filled Per kilowatt of Hydro
-box
Amount of Additional Refrigerant to Be Filled Per kilowatt of Hydro
-box
(kg/Kw)
0.054
4. Total Mass of Additional Refrigerant to Be Filled= Mass of Additional Refrigerant for Liquid pipe+ Mass
of Additional Refrigerant for Hydro
-box
Note: It is not needed to add refrigerant if the total length of liquid pipe is within 50m.
(3) Example:
d
c
b
a
Indoor Unit
B
A
C
Outdoor Unit
D
Hydro-Box
Water
Tank
Fig. 22
Indoor Unit:
No.
Model
Indoor Unit
Ceiling GMV-R56T/Na-K
Indoor Unit
Wall-mounted GMV-R36G/Na-K
Indoor Unit
Ultra-thin Air Duct GMV-R45P/NaL-K
Indoor Unit
Air Duct GMV-R22P/NaB-K
Hydro
-box
Hydro
-box
RQD8GA-K
Содержание GMV-Pds100W/Na-K
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