Carrier X-POWER Series - Page 83

Carrier service manual R410a DC Inverter 60Hz
Installation 101
660≤A<920 Φ1-1/4(Φ31.8) Φ3/4(Φ19.1) BJF-710-CM(i)
920≤A<1350 Φ1-1/2(Φ38.1) Φ3/4(Φ19.1) BJF-1344-CM(i)
1350≤A<1800 Φ1-5/8(Φ41.3) Φ7/8(Φ22.2) BJF-E1344-CM(i)
1800≤A Φ1-3/4(Φ44.5) Φ1(Φ25.4) BJF-E1344-CM(i)
1.1.2.3 Selection of the main pipe (L1)
E.g. The main pipe (L1) in the above drawing
Please refer to the following table:
Table 4-5
The
capacity
of
outdoor
units
When total equivalent length<295ft(90m) When total equivalent length≥295ft(90m)
Gas side
in.(mm)
Liquid side
in.(mm)
The indoor No.1
distributor
Gas side
in.(mm)
Liquid side
in.(mm)
The indoor No.1
branch
8HP
Φ7/8(Φ22.2) Φ3/8(Φ9.53) BJF-330-CM(i) Φ7/8(Φ22.2) Φ1/2(Φ12.7) BJF-330-CM(i)
10HP
Φ7/8(Φ22.2) Φ3/8(Φ9.53) BJF-330-CM(i) Φ1(Φ25.4) Φ1/2(Φ12.7) BJF-330-CM(i)
12~14HP
Φ1(Φ25.4) Φ1/2(Φ12.7) BJF-710-CM(i) Φ1-1/8(Φ28.6) Φ5/8(Φ15.9) BJF-710-CM(i)
16HP
Φ1-1/8(Φ28.6) Φ1/2(Φ12.7) BJF-710-CM(i) Φ1-1/4(Φ31.8) Φ5/8(Φ15.9) BJF-710-CM(i)
18~22HP
Φ1-1/8(Φ28.6) Φ5/8(Φ15.9) BJF-710-CM(i) Φ1-1/4(Φ31.8) Φ3/4(Φ19.1) BJF-710-CM(i)
24HP
Φ1-1/8(Φ28.6) Φ5/8(Φ15.9) BJF-710-CM(i) Φ1-1/4(Φ31.8) Φ3/4(Φ19.1) BJF-710-CM(i)
26~32HP
Φ1-1/4(Φ31.8) Φ3/4(Φ19.1) BJF-710-CM(i) Φ1-1/2(Φ38.1) Φ7/8(Φ22.2) BJF-1344-CM(i)
34~48HP
Φ1-1/2(Φ38.1) Φ3/4(Φ19.1) BJF-1344-CM(i) Φ1-1/2(Φ38.1) Φ7/8(Φ22.2) BJF-1344-CM(i)
50~64HP
Φ1-5/8(Φ41.3) Φ7/8(Φ22.2) BJF-E1344-CM(i) Φ1-3/4(Φ44.5) Φ1(Φ25.4) BJF-E1344-CM(i)
64~72HP
Φ1-3/4(Φ44.5) Φ1(Φ25.4) BJF-E1344-CM(i) Φ2-1/8(Φ54.0) Φ1(Φ25.4) BJF-E1500-CM(i)
Notice: If the total indoor units’ capacity is more than the total outdoor units’, please select the main pipe
diameter according to the bigger one.
E.g. When the total capacity of 16HP+16HP+14HP paralleled outdoor units is 46HP, if the total pipe
length is more than 295ft(90m), the pipe diameter is Φ1-1/2(Φ38.1) andΦ7/8(Φ22.2) according to the
above table. While the total indoor units’ capacity is 136kW, the pipe diameter is Φ1-5/8(Φ41.3) and
Φ7/8(Φ22.2) according to the No.1.1.2.2 table. Then, according to the principle of selecting the bigger,
the main pipe diameter should be Φ1-5/8(Φ41.3) and Φ7/8(Φ22.2).
1.1.2.4 Selection of the branch (L, M) and the outdoor unit pipe (g1, g2, g3, G1)
E.g. The branch (L, M) and outdoor unit pipe (g1, g2, g3, G1) in the above drawing.
When there is only single outdoor unit, please refer to the following table:
Table 4-6
Model The outdoor unit pipe diameter in.(mm)
8HP,10HP
Φ1(Φ25.4) Φ1/2(Φ12.7)
12HP,14HP,16HP
Φ1-1/4(Φ31.8) Φ5/8(Φ15.9)
18HP Φ1-1/4(Φ31.8)
Φ3/4(Φ19.1)
When the multi outdoor units are paralleled, please refer to the following table:
Table 4-7
Outdoor unit
quantity
Drawing example Outdoor unit pipe diameter in.(mm) Outdoor branch
2
g1,g2:
8,10HP: Φ1(Φ25.4)/Φ1/2(Φ12.7);
12~18HP: Φ1-1/4(Φ31.8)/Φ5/8(Φ15.9)
L：
BJC-02-CM (i)