Power Distribution Box; Indoor Units And Ms Boxes On The Same Refrigeration; Typical Power Wiring Diagram (Vrf Heat Recovery System Shown) - Lennox VRF V22A Series Installation Instruction

Indoor units and MS boxes on the same refrigeration

circuit should have a common power supply but must
have an independent disconnect switch installed adjacent
to the fan coil for servicing and maintenance purposes.

Power Distribution Box

L1/L2
PQE Communication wiring
L1/L2 Single-Phase power wiring
L1/L2/L3 Three-Phase power wiring
Electrical disconnect switch
Figure 10. Typical Power Wiring Diagram (VRF Heat Recovery System Shown)
L1/L2/L3
L1/L2
PQE
PQE
MS
Box
PQE
PQE
L1/L2
PQE
PQE
PQE
MS
Box
PQE
PQE
Legend
Indoor unit and MS box power supply MUST not be taken
from the outdoor unit. Always follow NEC/CEC and Local
Codes.
L1/L2/L3
L1/L2/L3
L1/L2
L1/L2
L1/L2
L1/L2
L1/L2
L1/L2
PQE
L1/L2
L1/L2
L1/L2
10
PQE