Lennox VEPS075N432K User Manual page 17

DC Inverter Multi VRF System
4.2.4 Selection of Indoor Branches
Select indoor branches according to the total capacity of downstream indoor units. If the capacity
exceeds that of the outdoor unit, capacity of outdoor unit prevails.
R410A Refrigerant system
Y type branch
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.
Total capacity of downstream indoor units C (kW)
5.6<C≤14.2
14.2<C≤22.4
22.4<C≤33.5
Total capacity of downstream indoor units X (kW)
C≤5.6
Fig.7
X<20
20≤X≤30
30<X≤70
70<X≤135
135<X
Fig.8
Gas pipe (mm)
Φ12.7
Φ15.9
Φ19.05
Φ25.40
11
Model
VEBC01A
VEBC01B
VEBC02A
VEBC03A
VEBC04A
Liquid pipe (mm)
Φ6.35
Φ9.52
Φ9.52
Φ12.70