Work Procedure After Repair - Toshiba MMY-MAP0804HT8(Z)(ZG)-E 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 2 and PMV4 (MMY-MAP1404 and MAP1604 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 Bit 2
OFF OFF
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
Liquid-side
service valve
SW12
Bit 3 Bit 4
OFF OFF Short-circuit
OFF OFF Short-circuit
PMV2
(TE1)
PMV4
(TE2)
High-pressure sensor
(TL)
(SV3D)
Oil separator
SV
Fusible
plug
Liquid tank
(SV41)
SV
(TD1)
Compressor
(Inverter)
(SV3A)
Check valve
Gas-side Balance pipe
service valve packed valve
CN30
PMV1 and 2 fully open for 2 minutes.
PMV4 fully opens for 2 minutes.
M
Fan motor
Right-side
Main heat exchanger
Right-side sub-heat exchanger
Left-side
Main heat exchanger
Left-side sub-heat exchanger
(SV6)
SV
SV
(SV2)
SV
(SV42)
(SV3C)
High-
High-
High-
pressure
(TD2)
pressure
pressure
SW
SW
SW
(TK4)
Compressor
1 2
(Inverter)
(TK2)
(TK1)
Oil pipe
(TK5)
(SV3E)
SV (SV3F)
SV
254
PMV operation
Fan
(TO)
Check valve
Check valve
4-way valve
(TS1)
Low-pressure sensor
Accumulator
SV
(SV43)
(TD3)
Compressor
3
(Inverter)
(TK3)
(SV3B)
Check valve