Midea MC-SU60-RN1L Service Manual

Aqua Tempo Super II
92 201709
Midea Aqua Tempo Super II
Service Manual
Procedure 4.21.4
H1
ODU power supply voltage at or
above260V or drops below 165V or or a
phase is missing
1
Yes
Provide normal power supply
No
Wires between outdoor main PCB, AC
filter boards and electric control box
power supply terminals are loose
2
Yes
Ensure the wires are connected properly
No
High voltage circuit error has occurred,
such as the compressor has
malfunctioned
3
, the fan motor has
short-circuited
4
, or the inverter module
has short-circuited
5
Yes
Replace or repair the relevant parts
No
Replace outdoor main PCB
Notes:
1. The normal voltage between A and N, B and N, and C and N is 198-242V.
2. Refer to Figures 4-1.2 to 4-1.4 in Part 4, 1 “Outdoor Unit Electric Control Box Layout”.
3. The normal resistances of the inverter compressor are 0.7-1.5Ω among U V W and infinite between each of U V W and ground. If any of the resistances
differ from these specifications, the compressor has malfunctioned. Refer to Figures 4-4.4 and 4-4.5 in Part 4, 4.12.6 “xL0 troubleshooting”.
4. The normal resistances of the fan motor coil among U V W are less than 10Ω. If a measured resistance is 0Ω, the fan motor has short-circuited. Refer to
Part 2, 1 “Layout of Functional Components”.
5. Set a multi-meter to buzzer mode and test any two terminals of P N and U V W of the inverter module. If the buzzer sounds, the inverter module has
short-circuited. Refer to Figures 4-1.2and 4-1.4 in Part4, 1 “Outdoor Unit Electric Control Box Layout” and to Figure 4-4.6.

Midea MC-SU60-RN1L Specifications

General

Brand	Midea
Model	MC-SU60-RN1L
Category	Chiller
Language	English