Unit Coolers

CTE

Specifications

AIR FLOW SCHEME

Performance ranges

  • Unit coolers capacity: from 1,05 to 57,0 kW *
  • Airflow: from 650 to 28320 m3/h
  • Brine coolers and CO2 coolers: customized on demand

Coil Features

  • High heat exchange efficiency
  • Designed with special profile aluminium fins and copper tubes
  • According to the room temperature, the employed fin spacing is the following:
  • CTE H3 for high temperatures (>= +2 °C): 3,5 mm
  • CTE E4 - A4 for high temperatures (>= +2 °C): 4,0 mm
  • CTE M6 - E6 - A6 for medium temperatures (>= -15 °C): 6,0 mm (electric defrost version ED is recommended)
  • CTE L8 - E8 - A8 for low temperatures (>= -35 °C): 8,5 mm, only equipped with electric defrost (ED)

Standard Defrost

Electric (ED) 400V/3/50Hz

Casing Features

Made of a magnesium aluminium alloy, with a smooth finish covered by a plastic protection film

Fan Motor Features

  • 1. 250 mm diameter 
  • Single-phase, with shaded poles
  • Voltage: 230V/1/50 Hz
  • Protection grade: IP 44
  • Working temperature: +40 °C
  • Inner thermal contact protection
  • 2. 315 mm diameter
  • Single-phase, with external rotor and inner capacitor
  • Voltage: 230V/1/50-60 Hz
  • Protection grade: IP 44
  • Working temperature: +40 °C
  • Inner thermal contact protection
  • 3. 350 mm diameter
  • Single-phase, with external rotor and inner capacitor
  • Voltage: 230V/1/50-60 Hz
  • Protection grade: IP 44
  • Working temperature: +40 °C
  • Inner thermal contact protection
  • 4. 500 mm diameter
  • Three-phase, with external rotor
  • Voltage: 400V/3/50-60 Hz
  • Protection grade: IP 54
  • Working temperature: +40 °C
  • Inner thermal contact protection

Fan Guard Features

  • 1. In 250 mm diameter fan motors:

manufactured from fibreglass charged polyamide, according to EN 294 standards

  • 2. In 315, 350 and 500 mm diameter fan motors:

manufactured from epoxy-coated steel, according to EN 294 standards 

Air throw

The aeraulic combination grants a considerably high air throw, measured in Modine’s Technical Lab according to CECOMAF GT6-001 standards

Testing

Heat exchangers are supplied clean and tested at a pressure of 30 bars 

Miscellaneous

Only CTE500 has no fan motors connected

Notes

* Nominal capacity: assessed in practical operating ambient, i.e. wet conditions; R404A refrigerant; air inlet temperature = 0 °C; evap. temperature = -8 °C; ΔT = 8 K.