Panasonic CS-W50BTP Service Manual page 30

REFRIGERANT ADDITIONAL CHARGE
1. Piping installation by standard piping
• • • • 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
Cooling only type
Model Name
CU-V50BBP8
Model Name
CU-V50BBP8
Heat pump type
Model Name
CU-W50BBP8
Model Name
CU-W50BBP8
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)
9.52
Liquid piping (dia.mm) Gas piping (dia.mm)
12.7
Liquid piping (dia.mm)
9.52
Liquid piping (dia.mm)
12.7
Standard piping specification
Gas charge- less length
19.05
Existing piping specification (Larger piping)
Gas charge- less length
19.05
Standard piping specification
Gas piping (dia.mm) Gas charge- less
19.05
Existing piping specification (Larger piping)
Gas piping (dia.mm) Gas charge- less length
19.05
30
Additional gas volume (g/m)
(m)
30
Addition gas volume (g/m)
(m)
7
Additional gas volume (g/m)
length (m)
30
Addition gas volume (g/m)
(m)
17
50
100
50
100