MCAC-VTSM-2016-04
R410A DC Inverter VRF V4 Plus W Series 50Hz
Installation 187
Table.4-5 Size of joint pipes for 410A main unit
Model
When the equivalent length of all liquid pipes < 90m, the size of main pipe(mm)
Gas side
Liquid side
The 1st branching pipe
8HP
Φ
22.2
Φ
9.5
FQZHN-02D
10HP
Φ
22.2
Φ
9.5
FQZHN-02D
12HP
Φ
25.4
Φ
12.7
FQZHN-02D
16HP
Φ
28.6
Φ
12.7
FQZHN-03D
18~22HP
Φ
28.6
Φ
15.9
FQZHN-03D
24HP
Φ
28.6
Φ
15.9
FQZHN-03D
26~32HP
Φ
31.8
Φ
19.1
FQZHN-03D
34~36HP
Φ
38.1
Φ
19.1
FQZHN-04D
Table.4-6 Size of joint pipes for 410A main unit
Model
When the equivalent length of all liquid pipes
≥
90m, the size of main pipe(mm)
Gas side
Liquid side
The 1st branching pipe
8HP
Φ
22.2
Φ
12.7
FQZHN-02D
10HP
Φ
25.4
Φ
12.7
FQZHN-02D
12HP
Φ
28.6
Φ
15.9
FQZHN-03D
16HP
Φ
31.8
Φ
15.9
FQZHN-03D
18~22HP
Φ
31.8
Φ
19.1
FQZHN-03D
24HP
Φ
31.8
Φ
19.1
FQZHN-03D
26~32HP
Φ
38.1
Φ
22.2
FQZHN-04D
34~36HP
Φ
38.1
Φ
22.2
FQZHN-04D
4.5 Branch pipes for main unit
Table.4-7
Model
Main unit pipe connective opening dimension(mm)
Gas side
Liquid side
8HP, 10HP
Φ
25.4
Φ
12.7
12HP
Φ
31.8
Φ
15.9
4.6 Branch pipes for indoor unit
Base on Table 4-8 and Table 4-9 select the multi connecting pipes of main unit. Before installation, please read
the Main unit Branching Pipe Installation Manual carefully.
Table.4-8 Main unit multi-connective pipe assembly (Illustration)
Main unit Qty.
Illustration
2 units
3 units