CHILLER / COOLING & HEATING

OffiTec Air-Cooled Industrial Chiller Unit

The OffiTec air-cooled chiller unit provides a highly efficient and reliable cooling solution for industrial facilities, data centers, commercial buildings, and process cooling applications. Its advanced fan technology, optimized heat exchangers, and durable body design ensure long service life. With its modular structure, it adapts easily to diffe

Cooling Capacity

450 kW (35/40 °C, 7/12 °C)

Energy Efficiency

EER up to 3.15 – part load optimized

Sound Pressure

Down to 58 dB(A) at 10 m

Refrigerant

R410A (option R32 / R454B)

Chiller front
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CLIMATE LAB

Technical specifications

Air-cooled chiller for chilled water production in HVAC and process applications. Scroll compressors, shell & tube condenser and plate evaporator. Performance data according to EN14511 and Eurovent conditions.

Cooling Capacity
450 kW
At 35 °C ambient / 7–12 °C water
Heating Capacity
480 kW
Heat pump version (optional)
Water Flow
77.4 m³/h
ΔT = 5 K
Operating Range
-10…+46 °C
Ambient in cooling mode
Cooling / Heating performance
Data at standard test conditions, partial load on request.
Cooling capacity 450 kW @ 35 °C ambient / 7–12 °C water
EER (full load) 3.15
Cooling capacity (partial load) 120–450 kW (multi-scroll staging)
Heating capacity (heat pump) 480 kW @ 7 °C ambient / 40–45 °C water
COP (heating) 3.25
Chilled water temperature range +5…+18 °C
Leaving water temperature stability ±0.5 K with electronic expansion valve
Max leaving water temperature (heat pump) +55 °C
Ambient temperature range (cooling) -10…+46 °C (low ambient kit optional)
Hydraulic & Installation
Dimensions, connections and water side values.
Net dimensions (L×W×H) 4200 × 2200 × 2500 mm
Net weight 3,250 kg
Refrigerant type R410A (option R32 / R454B)
Number of circuits 2 independent refrigerant circuits
Water connections DN125 flanged (inlet / outlet)
Nominal water flow 77.4 m³/h (ΔT = 5 K)
Water pressure drop 55 kPa (plate heat exchanger)
Max working pressure (water side) 10 bar
Min water content (system) 1.5 L/kW (min. 675 L)
Sound pressure level (10 m) 58 dB(A) – night mode available
Installation location Outdoor – rooftop, yard or technical terrace
Electrical data
Main power and control details.
Power supply 400 V / 3Ph / 50 Hz (+/-10%)
Installed power (compressors) 4 × 75 kW scroll compressors
Fan motors EC axial fans, total 8 pcs
Maximum running current ~360 A
Starting method Soft start / inverter (depending on configuration)
Control panel Microprocessor controller with BMS (Modbus / BACnet)
Protection degree IP54 electrical cabinet
Remote on/off & alarm contacts Standard, volt-free contacts
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