Daikin VRV - Optimized Pipe Routes

30
30
30
30
36
07
12
7
07
7
07
36
12
30
30
3030
07
30
30
30
30
36
07
12
7
07
7
07
36
12
30
30
3030
07
47
Optimized Pipe Routes
A factor not often considered before installation is establishing an
optimum pipe route. This can be due to the limited choice of riser or
outdoor unit location. However, establishing an optimum pipe route and
order of unit attachment can realize significant reduction in pipe REFNET
joint sizes, as well as refrigerant charge.
Example 1 – LINEAR PIPE ROUTE
Example 2 - BRANCHING PIPE ROUTE
MAIN LINE
PIPING
(ODU to
Last REFNET)
JOINT
SIZES
70 ft of 1
1
⁄
8
5 x Large
(size 72)
20 ft of
7
⁄
8
2 x Med
(size 33)
4 ft of ¾
1 x Small
(size 22)
(NO
5
⁄
8
)
TOTAL REFRIGERANT:
37.5 lbs.
MAIN LINE
PIPING
(ODU to
Last REFNET)
JOINT
SIZES
32 ft of 1
1
⁄
8
3 x Large
(size 72)
2 ft of
7
⁄
8
1 x Med
(size 33)
19 ft of ¾
4 x Small
(size 22)
48 ft of
5
⁄
8
TOTAL REFRIGERANT:
34.6 lbs.