Work Procedure After Repair - Toshiba MMY-MAP0806HT8(J)P Service Manual

10-3. Work procedure after Repair

When vacuuming in the repaired outdoor unit, follow the procedure described below.
<Work procedure>
(1) Fully open PMV1 and PMV3 (MMY-MAP1406∗ to 2206∗ only) in accordance with the table below. Note: PMV
full-opening operation via short-circuiting of the CN30 pins is automatically undone after 2 minutes,
causing the valves to fully close. To maintain fully open state, turn off the power switch of the outdoor unit
within 2 minutes of the short-circuiting of the CN30 pins.
Bit 1
OFF
ON
(2) Be sure to perform vacuuming in from the three check joints shown in the diagram below (liquid pipe, discharge
pipe and suction pipe).
(PMV1)
Sub cool
heat exchanger
AMP Air Conditioning
SW12
Bit 2 Bit 3 Bit 4
OFF OFF OFF Short-circuit
OFF
OFF OFF Short-circuit
Reducer
(TE1)
(TL1)
SV
(SV52)
Reducer
High-pressure
sensor
(TS3)
Oil Separator
Fusible
plug
FP
(SV3D) SV
(SV41)
SV
Liquid Tank
(TD1)
(PMV4)
(TL3)
Reducer
CN30 PMV operation
PMV1 fully open for 2 minutes.
PMV3 fully opens for 2 minutes.
M
Fan motor
Right side
Main heat exchanger
Left side
Main heat exchanger
SV
(SV2)
(SV42)
SV
High-
High-
pressure
pressure (TD2)
switch
switch
(SV3C)
(TK4)
Compressor
Compressor
1 2
Check Check
valve valve
(TK2)
(TK1)
(TK5)
Oil Header
(SV3A)
− 252 −
Fan
(TO)
4-way valve
(TS1)
Low-pressure
sensor
Accumulator
(SV3B)
SV
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