Baxi JSGNW Installation And Support Manual page 16

Length of refrigerant connections
Note: All the requirements below should be met at the same time:
Maximum piping
length to each IDU
Maximum total piping
L1+L2+L3+L4+L5 (m)
length to all IDU units
Maximum height
H1,H2,H3,H4,H5 (m)
between ODU & IDU
Maximum height
between IDUs
Meters of pre-charge
Refrigerant adjustment: lf total pipe length exceeds P, additional refrigerant (R32) charge is
required. (The outdoor unit is charged with refrigerant for total pipe length up to P meters).
Pipe length
LSGT40-2M LSGT50-2M LSGT60-3M LSGT70-3M LSGT100-4M LSGT125-5M
L1,L2,L3,L4,L5 (m)
H (m)
P (m)
≤P m
No additional charge required
An additional charge required:
>P m
20 g/m x (refrigerant piping length (m) - P)
25 25
40 40
15 15
10 10
15 15
15
30 30
60 60
15 15
10 10
22,5 22,5
35 35
80 80
15 15
10 10
30 37,5