Christie DWU851 Service Manual page 83

DWU851(DD1-WU70P/71P) / DHD851(DD1-HD70P/71P) / DWX851(DD1-WX70P/71P)
REAR POWER UNIT (POWER UNIT1/2 CIRCUIT,
POWER EXHAUST FAN)
NOTE: Remove the MAIN PCB block before disassembling
the POWER UNIT HOLDER.
Disassembling
1) Remove a silver screw to detach CNGDS.
2) Remove 4 silver and 2 black screws to detach the circuit
holder.
3) Disconnect all the cables and the partition on the
POWER UNIT1 CIRCUIT.
4) Remove 2 silver screws to detach the earthing terminal,
then remove 4 black screws to detach POWER UNIT1
CIRCUIT from the bottom case.
5) Detach POWER EXHAUST FAN.
Partition
Slit
Air Flow
Assembling
1) Attach the POWER EXHAUST FAN.
2) Connect CNAC1, CNPW1, CNTS, CNAWV and CNPF1 on the POWER UNIT1 CIRCUIT.
3) Attach POWER UNIT1 CIRCUIT and screw down. Then attach the earthing terminal and screw down.
Slit
DWU851/DHD851/DWX851
Service Manual
020-000755-01 Rev. 1 (11-2014)
CNGDS
T4x8 silver
Power unit
circuit case
Torque: 0.39-0.59Nm
Earthing
terminal
POWER UNIT1
CIRCUIT CIRCUIT
POWER
EXHAUST FAN
M4x8 silver
screws
Torque: 0.39-
0.59Nm
CNAWV
CNPF1
82
Torque: 0.68-
T3x12 black screws
0.88Nm
Power unit
circuit case
screw
M3x8 silver screws
Torque: 0.39-0.59Nm Torque: 0.39-0.59Nm
POWER UNIT1
CIRCUIT
T3x12 black screws
Torque: 0.68-0.88Nm
Earthing
terminal
Torque: 0.39-0.59Nm
M4x8 silver
screws