Daikin AKZ439 Oil Cooler

---
**Daikin AKZ 439 Series Chiller Units — Advanced Energy Efficiency & Precise Control**

The Daikin AKZ 439 series chillers deliver exceptional energy savings through innovative inverter-driven IPM motor technology, ensuring both performance and efficiency.

### Key Features:

**High-Precision Oil Temperature Control**
Achieves acclaimed ±0.1°C accuracy, now extended to cover a broader operational range for enhanced system stability.

**Refrigerant Leakage Detection Alarm**
Automatically detects refrigerant leaks, triggering an alarm to promptly notify operators of cooling circuit issues.

**Oil Temperature Warning System**
Generates warning signals if oil or air temperatures deviate from user-set thresholds, enabling proactive monitoring.

**Auto-Tuning Function**
Reduces trial operation time by automatically adjusting control gains, ensuring optimal oil temperature regulation even beyond factory settings.

**Flexible 999-Hour ON Timer**
Allows operation start time scheduling from 0 up to 999 hours in one-hour increments for precise system planning.

**Preventive Maintenance Alerts**
Notifies when air filters or condensers require cleaning to prevent performance drops. If thermistor failure occurs, the unit can switch to emergency operation mode to minimize downtime.

The new Daikin '9 series' hybrid oil cooling units save you money in four distinct ways:



Energy

Advanced IPM motor technology and R410A refrigerant reduces energy consumption and is monitorable through the operation panel, allowing longer unit life, reduced energy costs and sustainable savings.



Temperature Control

The high accuracy temperature control has been advanced further in the '9' series due to the optimal control of the compressor and electronic expansion valves.



Alarm Functions

State-of-the-art features provide proper maintenance support with refrigerant gas leakage detection, an oil temperature warning, auto-tuning, a 999-hour timer and preventative maintenance function that notifies the operator when the air filter or condenser is clogged.



Compatibility

90% of all standard industrial applications can be replaced by a Daikin hybrid unit allowing for much greater continuity in your factory, and reduces the amount of new units and spare parts required to be held in stock.

High-accuracy temperature control and first class energy saving by fusing "Hydraulic Technology" and "Inverter Technology".



The usable oils for this AKZ439 Daikin Oil Cooling Unit are lubricating oil and mineral oil based hydraulic fluid. The viscosity range of the oil is 1.4~200 (ISO VG2~32).



The room temperature operating range is between 5~45°C and the inlet oil temperature operating range is 5~50°C.



The connection piping fitting sizes for the AKZ439 Daikin Oil Cooling Unit are as follows:

Oil Inlet: Rc3/4

Oil Outlet: Rc3/4

Oil Drain: Rc1/4 (Plug Stopper)

---

Would you like it more formal, more technical, or tailored for sales? I can tweak the tone as you want!