13-3. Process after Repair

After completion of the repair work, perform vacuuming of the outdoor unit using the following procedure.

Procedure

1.Short CN30 on the interface P.C. board on the outdoor unit for which the repair work has been completed, to open the PMV fully. (Confirm that Bit 1 of SW12 is OFF.)

Note) The PMV opening by using short CN30 returns the PMV to fully closed after 2 minutes.

To continue to fully open status, turn off the power supply of the outdoor unit within 2 minutes after using short CN30.

2.Be sure to perform vacuuming from the following three check joints. (Liquid pipe, discharge pipe, and suction pipe)

Propeller fan

FM Fan motor

 

 

Sensor

 

 

 

 

 

 

(TE1)

 

(Right side)

 

 

 

 

 

 

 

Strainer

 

Main heat exchanger

 

 

 

 

 

Pulse motor valve

 

 

(Left side)

 

 

 

 

 

 

Solenoid valve

Main heat exchanger

 

 

(SV12)

 

(PMV1)

(PMV2)

 

 

 

 

 

 

 

 

Strainer

Sub heat exchanger (Right side)

 

 

 

 

 

 

 

Check

(PMV3)

 

Sub heat exchanger (Left side)

 

 

 

 

 

 

Strainer

valve

Check

 

 

 

 

 

 

 

 

 

 

 

 

valve

 

 

 

 

 

 

Solenoid

 

 

Solenoid

 

 

valve

 

 

 

valve

 

 

(SV5)

 

 

 

(SV11)

 

 

 

 

 

 

Check

 

 

 

High-pressure valve

 

 

 

sensor

 

 

 

Sensor

 

Solenoid

Capillary

Check joint

 

 

valve

tube

 

 

 

 

(TL)

 

(SV6)

Capillary tube

Strainer

 

 

 

 

 

 

 

 

 

 

Oil

 

 

 

Solenoid valve

 

 

separator

 

 

 

 

 

 

 

 

 

(SV3D)

Strainer

Liquid

 

 

 

Capillary tube

Check

 

 

 

 

 

 

tank

 

 

Solenoid valve

 

 

 

 

valve

 

 

 

(SV41)

 

 

 

 

 

 

 

 

 

 

 

 

High-

 

 

 

Check

 

 

pressure

 

 

 

 

 

 

switch

 

 

 

joint

 

 

 

Sensor

 

Capillary

 

 

 

 

(TD1)

 

tube

 

 

 

 

 

1

 

Sensor

 

 

 

 

 

Compressor

(Inverter)

 

 

 

 

 

(TK3)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Strainer

 

 

 

 

 

 

 

Check

 

 

 

 

 

 

 

valve

 

 

 

 

 

 

 

Capillary

 

 

 

 

 

 

 

tube

 

 

 

 

 

 

 

Sensor

 

 

 

 

 

 

 

(TK1)

 

 

 

 

Solenoid

 

Sensor

 

 

 

 

valve

 

 

 

 

 

 

 

 

(TK4)

 

 

 

 

(SV3E)

 

 

 

 

 

 

 

 

 

 

Capillary tube

 

Strainer

 

Strainer

 

 

 

Solenoid

 

 

 

 

 

 

valve

 

 

 

 

 

 

(SV3A)

 

 

 

Strainer

 

 

 

 

Sensor

(TO)

 

 

4-Way valve

 

 

 

Capillary

Sensor

Low-

 

 

tube

pressure

 

 

 

(TS1)

sensor

 

 

 

 

 

 

 

Sensor

 

Solenoid valve

(TS2)

Check

 

(SV2)

 

 

joint

 

 

Capillary tube

 

 

Check

 

Solenoid valve

 

valve

 

(SV42)

 

 

 

High-

Accumulator

Solenoid

 

pressure

 

switch

 

 

valve

 

Sensor

 

 

(SV3C)

 

(TD2)

 

 

 

 

 

 

 

2

(Inverter)

 

 

Strainer

Compressor

 

 

 

 

 

 

Check

 

 

 

 

valve

 

 

 

 

Capillary

 

 

 

 

tube

 

 

 

 

Sensor

 

 

 

 

(TK2)

 

 

 

 

Oil tank

 

 

 

 

 

Capillary tube

 

 

Check

 

Solenoid

 

 

 

valve

 

 

valve

 

 

 

 

(SV3B)

 

 

 

 

 

 

 

 

Check

 

 

 

 

valve

 

 

Service

Service

Service

Service

valve of

valve at

valve at

valve at

balance

liquid

discharge

suction

pipe

side

gas side

gas side

196

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Toshiba MMU-AP0091H service manual Process after Repair, 196