Lennox VOSA036S4 Installation Instruction page 13

Tightening torque for the terminal screws
• Use the correct screwdriver for fi ghting the terminal
screws. If the screwdriver blade is too small, the head
of the screw might be damaged, and the screw will not
be properly tightened.
• If the terminal screws are over tightened, screws
might be damaged.
• Refer to the table below for the tightening torque of
the terminal screws.
IMPORTANT
DO NOT adjust DIP switch settings. Settings may only
be adjusted by a trained technician as part of the com-
missioning procedures.
Power Distribu on Box
Legend
PQE Communica on wiring
L1/L2 Single-Phase power wiring
Electrical disconnect switch
Figure 13. Typical Power Wiring Diagram (VRF Heat Pump System Shown)
L1/L2
L1/L2
L1/L2
L1/L2
L1/L2
Table 3. Terminal Screw Tightening Torque
Terminal base of
remote controller/Signal
transmission wire (X2M)
Terminal base of power
supply (X1M)
Grounding terminal (M4)
• After wiring, confi rm all connections are correct; Then
turn on power supply to the unit.
L1/L2
PQE
PQE
PQE
PQE
PQE
PQE
PQE
PQE
PQE
PQE
PQE
PQE
13
Tightening torque (lb-ft)
0.58-0.72
0.87-1.06
1.06-1.43
PQE
PQE
PQE
L1/L2
L1/L2
L1/L2
L1/L2
L1/L2
L1/L2
L1/L2
L1/L2
L1/L2
L1/L2
L1/L2
L1/L2