Midea MC-SU30-RN1L Service Manual

Aqua Tempo Super II
80 201709
Midea Aqua Tempo Super II
Service Manual
Procedure 4.14.4
P9
Water side heat exchanger water inlet /
outlet temperature sensor is loose
1
Yes
Ensure the temperature sensor is
connected properly
No
Water side heat exchanger water inlet /
outlet temperature sensor has
short-circuited or failed
2
Yes
Replace the temperature sensor
No
Water piping contains air
Yes
Purge air from the water system
No
The water flow rate is not sufficient,
caused by crushed or bent water piping,
pump capacity or high resistance in water
piping
Yes
Inspect the system and fix the error
No
Replace outdoor main PCB
Notes:
1. Water side heat exchanger water inlet temperature sensor and water side heat exchanger water outlet temperature sensor connections are port CN31 on
the main PCB (labeled 24 in Figure 4-2.1 in Part 4, 2.2 “Outdoor unit main PCB”).
2. Measure sensor resistance. If the resistance is too low, the sensor has short-circuited. If the resistance is not consistent with the sensor’s resistance
characteristics table, the sensor has failed. Refer to Table 4-5.1 in Part 5, 5.1 “Temperature Sensor Resistance Characteristics”.

Midea MC-SU30-RN1L Specifications

General

Brand	Midea
Model	MC-SU30-RN1L
Category	Chiller
Language	English