Toshiba MMY-MAP0724HT6UL - Replacing Compressors

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11-3.Work procedure after repair
When vacuuming in the repaired outdoor unit, follow the procedure described below.
<Work procedure>
(1) Fully open PMV1 and 2 and PMV4 (MMY-MAP0964HT6UL and MAP1144HT6UL 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.
(2) Be sure to perform vacuuming in from the three check joints shown in the diagram below (liquid pipe, discharge
pipe and suction pipe).
SW12
CN30 PMV operation
Bit 1Bit 2Bit 3Bit 4
OFF OFF OFF OFF Short-circuit PMV1 and 2 fully open for 2 minutes.
OFF ON OFF OFF Short-circuit PMV4 fully opens for 2 minutes.
Fan
Fan motor
Right-side
Main heat exchanger
Main Heat exchanger
Left-side
Left-side sub-heat exchanger
4-way valve
High-pressure sensor
Low-pressure sensor
Oil separator
High-
pressure
SW
Oil pipe
Check valve
Check valve
Liquid tank
Accumulator
Liquid-side
service valve
Gas-side
service valve
Balance pipe
packed valve
Check valve
Check valve
High-
pressure
SW
High-
pressure
SW
Fusible
plug
Right-side sub-heat exchanger