Note On Adding Refrigerant - INVENTOR V6MKI32-18WiFiR/U6MRS32-18 Installationshandbuch

Note On Adding Refrigerant

CAUTION
• Refrigerant charging must be performed after wiring, vacuuming, and the leak testing.
• DO NOT exceed the maximum allowable quantity of refrigerant or overcharge the system. Doing so
can damage the unit or impact it's functioning.
• Charging with unsuitable substances may cause explosions or accidents. Ensure that the appropriate
refrigerant is used.
• Refrigerant containers must be opened slowly. Always use protective gear when charging the system.
• DO NOT mix refrigerants types.
• For the R290 or R32 refrigerant model, make sure the condtions within the area have been made safe
by control of flammable material when the refrigerant added into air conditioner.
• The maximum refrigerant charge amount of R32 is 305 grams.
Some systems require additional charging depending on pipe lengths. The standard pipe length
varies according to local regulations. For example, in North America, the standard pipe length
is 7.5m (25') In other areas, the standard pipe length is 5m (16'). The additional refrigerant to be
charged can be calculated using the following formula:
R22
(orifice tube in the indoor
unit):
R22
(orifice tube in the outdoor
unit):
R410A:
(orifice tube in the indoor
unit):
R410A:
(orifice tube in the outdoor
unit):
R32 :
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Liquid Side Diameter
ф6.35(1/4")
(Total pipe length-
standard pipe length)x
30g (0.32oZ)/(ft)
(Total pipe length -
standard pipe length)
x15g(0.16oZ)/ m(ft)
(Total pipe length -
standard pipe length)
x30g(0.32oZ)/m(ft)
(Total pipe length -
standard pipe length)
x15g(0.16oZ)/m(ft)
(Total pipe length -
standard pipe length)x
12g(0.13oZ)/m(ft)
ф9.52(3/8")
(Total pipe length -
standard pipe length)x
65g(0.69oZ)/m(ft)
(Total pipe length -
standard pipe length)
x30(0.32oZ)/m(ft)
(Total pipe length -
standard pipe length)
x65g(0.69oZ)/m(ft)
(Total pipe length -
standard pipe length)
x30g(0.32oZ)/m(ft)
(Total pipe length -
standard pipe length)x
24g(0.26oZ)/m(ft)
ф12.7(1/2")
(Total pipe length -
standard pipe length)x
115g(1.23oZ)/m(ft
(Total pipe length -
standard pipe length)
x60g (0.64oZ)/m (ft)
(Total pipe length - stan-
dard pipe length)
x 115g(1.23oZ)/m(ft)
(Total pipe length -
standard pipe length)
x65g(0.69oZ)/m(ft)
(Total pipe length -
standard pipe length)x
40g(0.42oZ)/m(ft)