Specifications

Comparison of COP (energy efficiency) – 8HP system
4.13
0
R22
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Our equivalent product
10 years ago, PUHY-200YMF
* Average COP of cooling / heating
* The values were obtained under the standard conditions.
44%
Energy efficiency
COP
2.86
4.45
56%
Energy
efficiency
High COP (Coefficient of Performance)
is realized
Standard model High COP model
Total Energy Conservation
The difference between YJM-A and previous
Mitsubishi Electric models
Technology is key when increased efficiency is demanded.
The CITY MULTI YJM-A range is able to deliver this in simple ways.
The importance of COP
The YJM-A range from Mitsubishi Electric provides precise control of energy input, through utilization of its
Intelligent Power Module (IPM) technology. By employing this technology it is possible to closely match the
building requirements, achieving more accurate control of the occupied space. By using incremental 1Hz steps of
capacity control, the amount of power input required is significantly reduced, resulting in greatly improved COP’s.
In addition, IPM technology ensures effective performance under partial load conditions, a condition that most
systems will be in for the majority of the normal working life cycle. By taking account the efficiency at both part
load, and peak load conditions, R410A CITY MULTI is designed to provide unbeatable year round/seasonal
efficiency.
A highly efficient R410A scroll compressor design results in less friction losses at the motor. A simplified refrigerant
circuit (low pressure loss) including a new accumulator design also adds a few more points to the efficiency scale.
Enhancements to the heat interchange circuit, an inverter driven fan motor and a heat exchanger design again add
vital increases to overall system efficiencies and COPs.
COP stands for “Coefficient of Performance”. It is a measure of the useful energy a system can deliver compared
to the energy it consumes. It is calculated by dividing the energy output by the energy input of a system. The
higher the figure then the more efficient the system is deemed to be. Mitsubishi Electric VRF models, the world's
highest energy-efficient air-conditioners, will undoubtedly reduce millions of tons of CO
2 emissions.
I ntelligent Power Module (IPM)
Technology