How a conventional (on/off) air conditioner works
A conventional air conditioner operates on the principle of cyclically switching the compressor on and off. When started, the device runs at full power to cool the room air to the set point. As soon as the target temperature is reached, the compressor turns off completely. When the room temperature rises by 2–3 degrees, the compressor switches on to maximum again.
Features of on/off system operation:
- The initial cost of the equipment is 20–30% lower compared to inverter counterparts.
- Due to regular inrush currents, the compressor experiences increased loads at every start.
- The indoor air temperature fluctuates in steps with an amplitude of 2–3 degrees.
Features and operating principle of an inverter system
An inverter air conditioner works differently: its compressor does not turn off after reaching the set temperature. The control unit adjusts the rotation speed of the compressor shaft, smoothly decreasing or increasing its capacity depending on current sensor readings.
Key characteristics of inverter devices:
- Power consumption is reduced by 30–40% due to the absence of constant inrush currents and operation at minimal RPM.
- The noise level of the indoor unit and outdoor unit is lower, making it comfortable for nighttime use.
- The temperature is maintained constantly and smoothly, without noticeable drops or cold drafts.
- There is an option for room heating during the winter period.
Comparison of key parameters
To simplify the choice, the main characteristics of both system types are grouped in the table:
| Parameter | On/Off air conditioner | Inverter air conditioner |
|---|---|---|
| Energy savings | Basic level | 30–40% more efficient |
| Temperature accuracy | Fluctuations of 2–3 °C | Smooth maintenance |
| Equipment cost | 20–30% lower | Higher |
| Heating in winter | Limited | Suitable for cold weather |
| Noise level | Standard | Reduced |
What to choose for an apartment, and what for a country house
When choosing a split system, it is necessary to consider the usage pattern of the room and the allocated budget.
It is practical to install standard on/off models in rooms where cooling is required periodically: in country houses, guest rooms, or utility rooms. Under such conditions, the difference in equipment cost will take a long time to pay off.
Inverter air conditioners are suitable for continuous use in residential apartments, bedrooms, and children's rooms. Smooth operation reduces the risk of catching a cold from a flow of cold air, and the low noise level does not disturb rest.
Installation and service from Arctica Service in Moldova
Arctica Service sells and installs air conditioners throughout Moldova. Installation work is performed in one day. For clients in Chisinau, the survey visit is free of charge.
A 2-year warranty is provided on equipment and installation. Subject to annual cleaning, the warranty period is extended up to 5 years. Payment is made upon completion of the installation; iute installments are also available.
The cost of standard installation depends on the room area:
- Up to 35 m² — 1 800 lei
- 40–55 m² — 2 200 lei
- 60–80 m² — 2 400 lei
- 80–100 m² — 2 800 lei
In short
- Inverters are quieter, save 30–40% of electricity, and smoothly maintain the temperature.
- On/off air conditioners are 20–30% cheaper and suitable for country houses or rarely used rooms.
- Arctica Service installs air conditioners across Moldova in 1 day with a warranty from 2 to 5 years.
- For residents of Chisinau, the survey is free, payment is made after installation or via iute installments.