Johnson Controls HVWHP072B32S - Removing Inverter PCB

SM-18006
4-59
MAINTENANCE
4.1.15.2 Removing Inverter PCB
(1) Disconnect all wiring with following connectors from the Inverter PCB.
For 208/230V Type: CN206, CN207 and CN303
For 460V Type: PCN2, CN206, CN207 and PCN331
NOTE:
CN206 and CN207 may not be connected to same models.
(2) Disconnect all wiring from terminals on the Inverter PCB.
For 208/230V Type: R, S, T, U, V, W, N, P, N1 and P1
For 460V Type: DCL1, DCL2, U0, V0, W0, R, S and T
(3) After removing screws (Δ places), remove the inverter PCB.
For 208/230V Type: four screws
For 460V Type: six screws
Tool Phillips Screwdriver
(H,Y)VWH(P,R)072 - 216B32S (208/230V) (H,Y)VWH(P,R)072 - 216B42S (460V)
Turn OFF all POWER supply switches.
Do not touch any electrical components while LED (Red) on Inverter PCB is ON.
Current may be owing through the components and cause electric shock.
● Do not touch any electrical components while the following LEDs on the PCB are ON. Current may
be owing in the components and cause electric shock.
For 208/230V Type: LED501 (Red) of main power PCB (MPB)
For 460V Type: LED401 (Red) of inverter PCB (INV)
● When reassembling the electrical components, match the terminal numbers with the marked
numbers. If incorrectly connected, malfunction may occur or the electrical components may be
damaged.
● When closing the PCB stay for control PCB for reassembly, protect the wiring from catching on
the plate edges or electrical components.
: No need to remove
CN303
CN207
CN206
R S T
N1
P1
W
V
U
N
P
U0
W0
V0
PCN331
PCN2
DCL1 DCL2
R S T CN206 CN207