Beko BIHPR 090, User Manual

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38 / 116 EN
Split Type Air Conditioner / User Manual
6 Air evacuation
A
CAUTION! When opening valve
stems, turn the hexagonal
wrench until it hits against the
stopper. Do not try to force the
valve to open further.
6.1.3 Note on adding refrigerant
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 refrigerant
should be charged from the service port on the
outdoor unit’s low pressure valve. The additional
refrigerant to be charged can be calculated using
the following formula:
Additional refrigerant per pipe length
Connective
Pipe Length
(m)
Air
Purging
Method
Additional Refrigerant
< Standard
pipe length
Vacuum
Pump
N/A
> Standard
pipe length
Vacuum
Pump
Liquid Side: Ø 6.35 (ø 0.25”)
R32:
(Pipe length – standard length) x 12g/m
(Pipe length – standard length) x
0.13oZ/ft
R290:
(Pipe length – standard length) x 10g/m
(Pipe length – standard length) x
0.10oZ/ft
R410A:
(Pipe length – standard length) x 15g/m
(Pipe length – standard length) x
0.16oZ/ft
R22:
(Pipe length – standard length) x 20g/m
(Pipe length – standard length) x
0.21oZ/ft
Liquid Side: Ø 9.52 (ø 0.375”)
R32:
(Pipe length – standard length) x 24g/m
(Pipe length – standard length) x 0.26oZ/ft
(Pipe length – standard length) x 18g/m
(Pipe length – standard length) x 0.19oZ/ft
R410A:
(Pipe length – standard length) x 30g/m
(Pipe length – standard length) x 0.32oZ/ft
R22:
(Pipe length – standard length) x 40g/m
(Pipe length – standard length) x 0.42oZ/ft
For R290 refrigerant unit, the total amount
of refrigerant to be charged is no more than:
387g(<=9000Btu/h), 447g(>9000Btu/h and
<=12000Btu/h), 547g(>12000Btu/h and
<=18000Btu/h), 632g(>18000Btu/h and
<=24000Btu/h).
A
CAUTION!
DO NOT mix
refrigerant types.