Lennox VRF VEC060N432U

DC Inverter Multi VRF System
11
R410A Refrigerant system
Total capacity of downstream indoor units X (kW)
Model
Y type branch
X<20
VEBC01A
20≤X≤30
VEBC01B
30<X≤70
VEBC02A
70<X≤135
VEBC03A
135<X
VEBC04A
4.2.5 Dimension of Pipe between Indoor Branches
Select pipe between indoor branches according to the capacity of downstream indoor units; if the
capacity exceeds that of the outdoor unit, capacity of outdoor unit prevails.
Fig 4.2.5.1
Total capacity of downstream indoor units C (kW)
Gas pipe (mm)
Liquid pipe (mm)
C ≤5.6 Φ12.7 Φ6.35
5.6<C≤14.2
Φ15.9
Φ9.52
14.2<C≤22.4
Φ19.05
Φ9.52
4.2.6 Dimension of Pipe between Indoor Branch and IDU
Dimension of pipe between indoor branch and IDU should be consistent with the dimension of
indoor pipe.
Fig 4.2.6.1