Hitachi RAS-6HVRNM2 - Line Branch Piping Work

TC-12001
2-99
OUTDOOR UNIT
P5414950-rev.1
23
O
Piping Work for Line Branch
* Select
I
12.7 liquid piping if the piping length is over 70m or more than 5 indoor units are connected to the outdoor
unit.
Outdoor Unit 3HP 4HP 5HP 6HP 7HP
Refrigerant Piping Length: L1
Actual Length 50 75 75
Equivalent Length 70 95 95
Piping Length from 1st Branch to each Indoor Unit: L2 20 30 30 -
Piping Length from Branch to Indoor Unit: L3 10 10 10 -
Height Difference
Outdoor / Indoor
(Outdoor Unit is Higher / Lower.)
30 / 20 30 / 20 30 / 20
Height Difference
Indoor / Indoor
10 10 10 -
Total Piping Length: Total of L3+L4 60 95 95 -
Multi-kit Model
5
MW-NP102AN -
6
MW-NP102AN -
Piping between Multi-kit and Indoor Unit (L3)
Indoor Unit Capacity Gas / Liquid
1-1.5HP
I
12.7 /
I
6.35
2HP
I
15.88 /
I
6.35
2.5-5HP
I
15.88 /
I
9.52
Main Piping Diameter (
B
)
Outdoor Unit Capacity Gas / Liquid
3-6HP
I
15.88 /
I
9.52
O
Piping Length and Branch Piping Selection
O
Piping Selection
Line Branch
B
L3
L4
L1
5
6
L2
L3
L3
L3
B
B
5