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Cooling only type
Model Name
CU-C18BBP5
Heat pump type
Model Name
CU-A18BBP5
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.
Attention
• • • • Please do not decrease the gas piping size. (It causes the breakdown of the compressor).
• • • • The equivalent piping length and the cooling and heating capacity change rate are same as the standard piping specification.
Liquid piping (dia.mm) Gas piping (dia.mm) Gas charge-less length
6.35
Liquid piping (dia.mm) Gas piping (dia.mm) Gas charge-less length
6.35
Standard piping specification
(m)
12.70
10
Standard piping specification
(m)
12.70
10
30
Additional gas volume
(g/m)
20
Additional gas volume
(g/m)
20
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