– 110 –
Put each leads
through the hole
Put the compressor
leads through
the hole
Inverter cover
P. C. board
(Soldered surface)
Discharging position
(Discharging period
10 seconds or more)
Plug of
soldering
iron
A screw
(STIT-4X8MSZN)
Terminal block
No.
3
Part name
Inverter
assembly
Procedure
1) Perform work of item 1 in
1
.
2) Remove screw (ST1TØ4 × 8L 2 pcs.) of the
upper part of the front cabinet.
• If removing the inverter cover in this
condition, P.C. board can be checked.
• If there is no space above the unit, perform
work of 1 in
2
.
Be careful to check the inverter because
high-voltage circuit is incorporated in it.
3) Perform discharging by connecting ,
polarity by discharging resistance
(approx. 100
Ω
40W) or plug of soldering iron to
, terminals a of the C14 (printed
“CAUTION HIGH VOLTAGE” is attached.)
electrolytic capacitor (760
μ
F) on P.C. board.
Be careful to discharge the capacitor
because the electrolytic capacitor cannot
naturally discharge and voltage remains
according to trouble type in some cases.
NOTE
This capacitor is one with mass capacity.
Therefore, it is dangerous that a large
spark generates if short-circuiting
between , polarity with screwdriver,
etc. for discharging.
4) Remove screw (ST1TØ4 × 8L 2 pcs.) fixing the
main body and the inverter box.
5) Remove the front cabinet by performing step
1 in
2
, and remove the fixing screws
(ST1TØ4 × 8L) for securing the main body and
inverter box.
6) Remove various lead wires from the holder at
upper part of the inverter box.
7) Pull the inverter box upward.
8) Disconnect connectors of various lead wires.
Requirement
As each connector has a lock mechanism,
avoid to remove the connector by holding
the lead wire, but by holding the connector.
Remarks
The connector is one
with lock, so remove it
while pushing the part
indicated by an arrow.
Be sure to remove the connector by
holding the connector, not by pulling
the lead wire.
