Modular heat pump,
Inverter MCU-YHI series

Operation range

Thanks to many years of experience in the development and design of refrigeration equipment, the company has successfully implemented the technology enhaced vapour injection (EVI) and inverter technology and made a breakthrough in the operation of modular heat pumps, the operating range is increased.

Full-inverter power saving

Energy efficiency class 1 according to the dual classification scheme based on the seasonal energy efficiency ratio (SEER) during cooling and heating operation. Power saving up to 26% in the entire SEER range.

All-round air intake

The heat exchanger is made of two U-shaped parts, with 45% more area on the air side and uniform all-round air return.

Proprietary drive control program

The unit is driven by a BLDC motor, while the control program with 8,000 counts per second and double filtering prevents power outages at any frequency level.

Inverter driven operation and precise output adjustment

The powerful inverter compressor supports stepless adjustment of capacity within 15% to 100%. It also performs well under partial load, avoiding frequent starts and stops. The use of EVI technology enables operation in extreme cold or heat.

Technological design

• The heat pump components are completely concealed to prevent them from damaging
• Improved heat exchange efficiency thanks to the increased air intake area Sheet metal casing painted in ivory colour
• Distinctive inverter design with the technology of enhanced vapour injection (EVI)
• High-efficiency shell-and-tube heat exchanger

Communication and control features

• Modular design for easy combination of the units
• Easy to use touch control panel (accessory)
• Support of remote control via MODBUS

Modular Design

The unique feature of the series is its modular design with the ability to combine up to 16 modules (165YH, plus up to 8 modules) in a single system.

This feature allows extending the capacity over 1 MW with the number of capacity stages being equal to the number of compressors, so that you can have up to 32 capacity stages with 16 chiller modules (in dual-compressor models). The entire system is controlled via a single remote controler connected to the master module, while the rest are slave
modules. This results in a N-module monoblock heat pump.

Partial load operation prioritized

When multiple modules are combined, the frequency of each compressor is intelligently controlled, with priority given to the operation in an energy-efficient partial load area. At the same time, compressor running time and load are balanced to facilitate uniform wear of each module compressor.

Patented 5-stage sound insulation for compressor room

1. Acoustic block. Green felt with butyl rubber material to frequency noises
2. Ultra-silence acoustic panel absorber. High-density foaming damping material to effectively absorb vibration and noise across frequencies
3. Hermetic soundproof box
4. Air suction and discharge copper pipe, oil separator, silencer, etc., placed in the compressor soundproof box
5. Protection panel around the unit to further block noise

Industry's largest diameter axial fan under equal air flow

Sawtooth large impeller, low rotating speed, low fan speed, operating noise in low speed for dual blower as 30 dB.  The brushless full DC fan motor features stepless speed adjustment of 15-100% and more stable operation, achieving higher energy efficiency while reducing noises.

Frequency conversion and noise reduction

Three silent modes selectable. With wired controller settings, the unit automatically limits the operation frequency of the compressor and the fan and actively reduces noise to meet customers' higher requirements.