Mitsubishi KXZ Series - Page 276

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274
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'20 • KX-T-373
Parts Ref.No Sequence Position
1 A
2 B
3 A
4 B
Inverter PCB TB1-11 - - 2.0
～
2.4 N
・
m
N.F. PCB TB6 - - 1.2
～
1.4 N
・
m
L,N,E,E(SL) - - 1.2
～
1.4 N
・
m
A1,A2,B1,B2 - - 1.2
～
1.4 N
・
m
Electrolytic capacitor C1 - - 2.5
～
2.7 N
・
m
Tightening torque
Initial
Final
-
-
-
-
-
Terminal block
IPM IC2
0.2
～
0.44 N
・
m
1.2
～
1.4 N
・
m
2. Exchange
2.1 Remove the screw from support panel and rotate the support panel to counterclockwise direction as shown in Fig.5.
(By doing so, you can see the locking spacer of the inverter PCB.)
2.2 Disconnect the connectors and round terminals, and remove the screws on the IPM (IC2) as shown in (D) in Fig.6.
2.3 Remove the inverter PCB.
2.4 Wipe off the silicone grease neatly on the heat sink.
2.5 Match the setting of new PCB switches (JSW10, 11) with former PCB. (Refer to Fig.6)
2.6 Paste a bundled silic
one grease uniformly on the radiating surface of the IPM (IC2) on the new PCB, and attach
the new PCB.
Without silicone grease pasting or its irregularities in the surface may damage to the inverter PCB.
(One-third to a half of the grease tube is adequate volume.)
2.7 Tighten the screws of IPM (IC2) on new PCB (Refer to table for recommended tightening torque), and
reconnect the connectors and round terminals as before. (Confirm that the connectors are not half inserted.)
3. Installation
3.1 Return the support panel to original position and tighten with the screw as before.
3.2 Install the control panel to nail-part on controller as shown in fig.7. And, pull out the CNP1 connector to
control PCB side from the grommet after
bundle the wiring to clamp as shown in fig.7.
3.3 Tighten the screws of electrolytic capacitor as shown Fig.8. (Refer to table for recommended tightening torque)
3.4 Reconnect the CNLA connector, and faston terminals to A.F. module (“P” and “N2”) as before.
3.5 Pass the white wiring through CT1 on the control PCB (Refer to Fig.7), and tighten the screw of TB6 in the N.F. PCB
as before. (Refer to table for recommended tightening torque)
Using bands in the package, bundle the wiring at cutting point on 1.4 and 1.5 as before.
(Refer to Fig.3 and Fig.7)
3.6 Tighten the screws (8 places) as shown in Fig.4 as before.
3.7 Reconnect the connectors and round terminals to control PCB and the user side of terminal block as before.
(Confirm the connectors are not half inserted.) (Refer to table for
recommended tightening torque)
Table recommended tightening torque
TB10
TB3
TB4
TB11
CNCAN
CNI2 **
CNACT1
CNI4 **
CNO
TB1
TB2
IC2
TB6
TB5
**TB9
**TB8
**TB7
JSW11
Parts No.
JSW10
Screw
Rotate
Support panel
Ⓐ Ⓑ
Inverter PCB
Support panel
A.F. module
IPM (IC2)
Fig.7 Installing procedure of control panel
Fig.6 Parts arrangement view of inverter PCB
Fig.5 Inverter side view of controller
Pass through the white wiring in
the direction of arrow.
Nail-part
Grommet
(D)
(D)
*Presence and shape of electric component
may vary according to model.
Fig.8 Installing procedure of electrolytic capacitor
To “P” (A.F. module)
CNA1, 2 (Control PCB)
To TB5 (Inverter PCB)
To TB6 (Inverter PCB)
To “N2” (A.F. module)
CNA1, 2 (Control PCB)
Electrolytic capacitor (C1)
Band
White wiring
CT1
TB6
CNLA
Bundle the white wiring as before.
Back side view
Clamp
To CNP1
Grommet
Electrolytic capacitor (C1)
Bundle the CNP1 wiring as before.
Connectors are not
half inserted
** These connectors and round terminals
are disconnected in 1.8.