Attention
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REFRIGERANT ADDITIONAL CHARGE
1.
Piping installation by standard piping
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At the time of shipment from the factory, this unit is charged with enough refrigerant for an equivalent pipe length of 30m.
(Refer to the following table)
But when the piping length exceeds 30m, additional charge is required according to the following table.
Example:
CU-V50BBP8
In case of 50m long pipe (one way), the amount of refrigerant to be replenished is: (50 - 30) x 50 = 1,000g
Q
Cooling only type
Model Name Standard piping specification
Liquid piping (dia.mm) Gas piping (dia.mm) Gas charge- less length
(m)
Additional gas volume (g/m)
CU-V50BBP8 9.52 19.05 30 50
Model Name Existing piping specification (Larger piping)
Liquid piping (dia.mm) Gas piping (dia.mm) Gas charge- less length
(m)
Addition gas volume (g/m)
CU-V50BBP8 12.7 19.05 7 100
Q
Heat pump type
Model Name Standard piping specification
Liquid piping (dia.mm) Gas piping (dia.mm) Gas charge- less
length (m)
Additional gas volume (g/m)
CU-W50BBP8 9.52 19.05 30 50
Model Name Existing piping specification (Larger piping)
Liquid piping (dia.mm) Gas piping (dia.mm) Gas charge- less length
(m)
Addition gas volume (g/m)
CU-W50BBP8 12.7 19.05 17 100
2.
Piping installation by existing piping
The above models change the liquid pipe size of the previous series. It is to use the existing piping by adjusting the refrigerant
gas volume.
Please do correct piping installation referring to the above table.
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Please do not decrease the gas piping size. (It causes the breakdown of the compressor).
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The equivalent piping length and the cooling and heating capacity change rate are same as the standard piping specification.
30
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