Note On Adding Refrigerant - INVENTOR U5MRSL322-18 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
The maximum refrigerant charge amount of R32 is 305 grams.
Depending on the length of connective piping or the pressure of the evacuated system, you
made need to add refrigerant. Refer to table below for refrigerant amounts to be added:
Connective Pipe Air Purging
Length(m)
Pre-charge pipe length (ft/m)
Vacuum Pump
(Standard pipe length xN )
More than (Standard
Vacuum Pump
pipe lengthxN) ft/m
Note: The standard pipe length is 7.5m (24.6').
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ADDITIONAL REFRIGERANT PER PIPE LENGTH
Method
Liquid Side: Ø 6.35 (Ø 1/4")
R32
(Total pipe length - standard pipe lengthxN) x12g/m
(Total pipe length - standard pipe lengthxN) x0.13oZ/ft
Liquid Side: Ø 6.35 (Ø 1/4")
R410A
(Total pipe length - standard pipe lengthxN) x15g/m
(Total pipe length - standard pipe lengthxN) x0.16oZ/ft
Additional Refrigerant
N/A
Liquid Side: Ø 9.52 (Ø 3/8")
R32
(Total pipe length - standard pipe lengthxN) x24g/m
(Total pipe length - standard pipe lengthxN) x0.26oZ/ft
Liquid Side: Ø 9.52 (Ø 3/8")
R410A
(Total pipe length - standard pipe lengthxN) x30g/m
(Total pipe length - standard pipe lengthxN) x0.32oZ/ft