Midea MC-SU30-RN8L chiller | Midea air conditioning systems | Midea.bg
New Midea MC-SU30-RN8L air cooled scroll chiller

Midea MC-SU30-RN8L Chiller

  • Series: Midea Aqua Tempo Super II;
  • Cooling Capacity: 27.5 kW;
  • Heating Capacity: 32 kW;
  • Cooling EER: 2.67;
  • Heating COP: 3.20;
  • Refrigerant: R32

Ask for price: +359 32 390 100

Aqua Tempo Super II Chillers


  • Refrigerant R32 75% less impact on global warming;
  • DC Inverter technology allows precise consumption on real load;
  • Minimum water temperature down to 0℃ (Anti-freeze liquid needed);
  • Minimum operation ambient temperature down to -10℃ for cooling mode;
  • High energy efficiency level A++ for energy saving (Water outlet temperature at 35°C);
  • Maximum 16 units combination and controlled by one controller;
  • Maximum 960kW combination capacity;
  • Maximum 256 units controlled through Modbus;
  • Hydraulic model for customization.

Ambient & Outlet Water Temperature

Stable operation even under extreme conditions: -14°C to 43°C.

Note: For cooling mode, if outlet water temperature is less than 5°C, anti-freeze liquid is needed. 0°C water temperature can be reached by changing DIP switch setting.

High Quality Components

DC Inverter compressor

At the heart of the chiller lies a world-leading DC inverter compressor. The compressor’s innovative design and numerous high performance features reduce power consumption by 25%.

  1. Twin rotary structure
  2. High efficiency DC motor
  3. Highly stable moving parts
  4. Better balance and extremely low vibration

High Efficiency Plate Heat Exchanger

Plate heat exchanger uses metal plates to transfer heat between refrigerant and water. The fluids are exposed to a much larger surface area because the fluids spread out over the plates, so both heat transfer efficiency and heat exchanger speed are greatly improved. Multi protections including voltage protection, current protection, anti-freezing protection and water flow protection ensure system safety running.

  1. Refrigerant pipe
  2. Water pipe
  3. Water pipe
  4. Refrigerant pipe

DC Fan Motors

Fan speed is controlled according to the system pressure and system load, reducing power consumption by 30%. There are 32-step vector control.

High Performance Heat Exchanger

Hydrophilic film fins and inner-threaded copper pipes optimize heat exchange efficiency. The specially coated blue fins enhance durability and protect against corrosion from air, water and other corrosive agents, assures a longer coil service life.

Heat exchanger aluminum foil

  • Standard products: 200h of neutral salt mist
  • Heavy anti-corrosion products: 1000h of neutral salt mist, 140h of acid salt mist

Heat exchanger copper pipe

  • Standard products: 24h of neutral salt mist
  • Heavy anti-corrosion products: 150h of neutral salt mist
  1. Enlarge heat-exchanging area (Fin)
  2. Enhance heat transfer (Inner-threaded pipe)
  3. High efficiency (Fin + inner-threaded pipes)

Precise Flow Control

Patented liquid distribution components maximize performance and minimize impact of defrosting operation. 500-step EXV with capillary tube allows stable and accurate gas flow control. Fast response results in higher efficiency and improved reliability.

Advanced Technology

Spray Liquid Cooling Control

Spray liquid cooling control, which is used for enhancing heating capacity in low temperature condition.

Precise Oil Control Technology

Four stages of oil control technology ensure all outdoor compressor oil is always kept at a safe level, eliminating any compressor oil shortage problems.

  • Compressor internal oil separation.
  • High-efficiency centrifugal oil separator (with separation efficiency of up to 99%) ensures that oil is separated from the discharge gas and returned to the compressors in a timely fashion.
  • Oil balance pipe ensures oil distribution to keep compressor running normally.
  • Auto oil return program monitors the running time and system status to ensure reliable oil return.

Intelligent Defrosting Technology

The intelligent defrosting program calculates the time required for defrosting according to the actual system status, eliminating heat losses from unnecessary defrosting. A specialized defrosting valve reduces time required for defrosting to as little as four minutes.

Rapid Cooling or Heating

The DC inverter compressor reaches full capacity rapidly, providing quicker cooling or heating with lower levels of temperature fluctuation during the cooling/heating operation.


Modular Design

Modularity is perfect when an extension of capacity becomes required as the building load range from 30kW to 960kW.

High Reliability

Alternate Defrost Operation

By detecting the water temperature, the proportion of defrosting unit can be determined intelligently so as to realize small water temperature fluctuation during the alternate defrosting period.

Alternative Cycle Duty Operation

In one combination system, all units operate as alternative in cycle duty to keep equal running time, realize higher stability, better reliability and longer lifespan.

Backup Function

In a combination system, if one unit failed, other units can be back-up instead of the failed one for continuing operation.

Multiple Functions

Multiple Slient Modes

Different silent modes enable noise reduction to suit time of day and ambient noise levels.

  • Standard mode
  • Silent mode
  • Super silent mode
  • Night silent mode

Weather temperature curve

With the help of weather temperature curve function, water temperature will automatically change as outside air temperature changes. When outdoor air temperature increases/decreases, the heating load will decrease/increase and water temperature will decrease/increase automatically. When outdoor air temperature decreases/increases, the cooling load will decrease/increase and water temperature will increase/decrease automatically.

Remote alarm, on/off control, cooling/heating control.

One-touch Water Temperature Switching

For cooling and heating mode, different water temperatures can be switched just by one-touch.

Anti-Corrosion Protection

Outdoor units are given anti-corrosion treatment for non-extreme conditions as standard and can also be customized with heavy anti-corrosion treatment on main components for surface protection against corrosive air, acid rain and saline air (for installations in coastal regions) to extend machine life span. The integrity of the anti-corrosion treatment is ensured by subjecting major components and parts to salt mist testing, moisture and heating testing and light aging testing.

Fan motor

Standard products:

  • 72h of neutral salt mist

Heavy anti-corrosion products:

  • 240h of neutral salt mist

Painted sheet metal

Standard products:

  • 500h of neutral salt mist
  • 1000h of moisture and heating test
  • 500h of light aging test

Heavy anti-corrosion products:

  • 1000h of neutral salt mist
  • 2000h of moisture and heating test
  • 720h of light aging test

Screws / bolts / gaskets

Standard products:

  • 300h of neutral salt mist

Heavy anti-corrosion products:

  • 720h of neutral salt mist

Electric control box case

Standard products:

  • 96h of neutral salt mist

Heavy anti-corrosion products:

  • 240h of neutral salt mist

Heat exchanger copper pipe

Standard products:

  • 24h of neutral salt mist

Heavy anti-corrosion products:

  • 150h of neutral salt mist

Heat exchanger aluminum foil

Standard products:

  • 200h of neutral salt mist

Heavy anti-corrosion products:

  • 1000h of neutral salt mist
  • 140h of acid salt mis

Convenient Control

Touch key wired controller as standard accessory to control the chillers

  • Touch key operation
  • Parameter setting an LCD display
  • Real-time clock function
  • Multiple timer
  • Power-off memory function
  • Modbus
  • Address setting
  • Parallel function
  • Buzzer prompt tone and alarm functions
  • Weekly schedule
  • Double set point function
  • Energy saving function

Three User Levels

Three different user levels ensure users can easily access control functions and allow engineers convenient access to operating parameters.

Group control for up to maximum 16 units with one wired controller

For master unit, one controller is used for setting whilst another controller can be connected and used for monitoring.

For slave units, controllers are only used for monitoring.

Modbus Compatible

Multilingual wired controller using Modbus communication protocol

Easy Installation

Built-in Components

  1. Hydraulic module (customization option)
  2. Water flow switch
  3. Wired controller
  4. Air purge valve
  5. Pressure relief valve

Water Pipe Connection

Only water piping installation is needed, no need to install refrigerant piping. 30kW model use screwed connection, while 60kW model use hoop connection. Hoop connection can be changed to flange connection by using Midea accessory in orther to suit more application.

Rotatable electric control box with explosion-proof design

The bottom layer can be easily achieved through the rotatable upper PCB, making the maintenance easier. Due to the micro combustibility of R32, the electric control box adopts explosion-proof design to ensure safety and reliability.

  1. Rotatable upper PCB of the electric control box
  2. Bottom layer of the electric control box
Technical Specification for MC-SU30-RN8L Chiller
Power supply V/Ph/Hz 380-415/ 3 / 50
Cooling Capacity kW 27.5
Rated input kW 10.3
EER 2.67
SEER 4.62
Heating Capacity kW 32
Rated input kW 10
COP 3.2
SCOP 4.24
Seasonal space heating energy efficiency class A++
Max. input current A 20
Comprossor Type Rotary
Quantity 1
Air heat exchanger Type Finned tube
Motor type DC Motor
Quantity 1
Air flow m3/h 12,500
Water heat exchanger Type Plate
Volume L 2.44
Water flow m3/h 5
Water pressure drop kPa 55
Pump head m /
Refrigerant Type R32
Charged volume3 kg 7.9
Throttle type EXV
Sound pressure level4 dB(A) 64.8
Sound power level 78
Dimension (W x H x D) Net dimension mm 1870 x 1175 x 1000
Packing dimension mm 1910 x 1225 x 1035
Weight Net weight kg 300
Gross weight kg 310
Pipe connections mm DN40
Ambient temperature range Cooling °C -10 ~ 43
Heating °C -14 ~ 30
Water outlet temperature range Cooling °C 5 ~ 20
Heating °C 25 ~ 54


  1. Cooling: Chilled water inlet/outlet Temp.12/7°C, outdoor ambient Temp. 35°C DB.
  2. Heating: Warm water inlet/outlet Temp. 40/45°C, outdoor ambient Temp. 7°C DB/6°C WB.
  3. For MC-SU60-RN8L, MC-SU60M-RN8L the total amount of refrigerant is 14 kg, including the 11.5 kg already charged before delivery and the 2.5 kg to be charged.
  4. Sound pressure level is measured at a position 1m in front of the unit and 1.1m above the floor in a semi-anechoic chamber.
  5. Capacity and efficiency data in accordance with EN14511, EN14825.
Series Aqua Tempo Super II
Cooling Capacity 27.5 kW
Heating Capacity 32 kW
Capacity 30 kW