Midea MC-SU60-RN1L Service Manual

Aqua Tempo Super II
30 201709
Midea Aqua Tempo Super II
Service Manual
Table 3-7.1: Component control during defrosting operation
Component
Wiring diagram
label
30kW
60kW
Control functions and states
Inverter compressor A
COMP A
●
●
Runs at defrosting operation rotation speed
Inverter compressor B
COMP B
●
DC fan motor A
FAN A
●
●
Off
DC fan motor B
FAN B
●
Electronic expansion valve
EXV 1
●
●
Full open
Four-way valve
STF1
●
●
Off
Solenoid valve (oil balance)
SV4_1
●
●
Open regularly
Water pump1
PUPM1
●
●
ON
Water pump2
PUPM2
●
●
Water side heat exchanger heater 1
EVA-HEAT 1
●
●
Off
Water side heat exchanger heater 2
EVA-HEAT 2
●
Water flow switch heater
W-HEAT1
●
●
Off
Electric auxiliary heat
E-HEAT_L
●
●
According to ambient temperature
Crank case heater 1
HEAT1
●
●
Off
Crank case heater 2
HEAT2
●
7.3 Additional control
When dial switch S5_4 on main PCB is switched ON, additional control is valid, connect a controller or not is permissible.
When dial switch S5_4 is switched OFF, additional control is invalid. This function is only valid on the master unit.
When dial switch S5_4 is switched ON and disconnect a wired controller:
 The system ON/OFF state is controlled by the ON/OFF port (CN44 on the main PCB). Connecting this port, system on,
disconnecting this port, system off.
 The mode of the system is controlled by the Cool/Heat port (CN44 on the main PCB). Connecting this port, system
running heating mode, disconnecting this port, system running cooling mode.
 The default water outlet temperature setting in heating mode is 45°C and in cooling mode is 7°C . The default
hysteresis temperature setting is 2°C .
 The network icon on the wired controlled flashes, frequency and “rctc” alternate display on main PCB .
When dial switch S5_4 is switched ON and connect a wired controller, the water outlet temperature and hysteresis
temperature can be set by the wired controller.

Midea MC-SU60-RN1L Specifications

General

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