Daikin EWAD270TZ-PR [71/75] Technical specifications

TECHNICAL SPECIFICATIONS

General The chiller will be designed and manufactured in accordance with the following European directives:

• Construction of pressure vessel 97/23/EC (PED)

• Machinery Directive 2006/42/EC

• Low Voltage 2006/95/EC

• Electromagnetic Compatibility 2004/108/EC

• Electrical & Safety codes EN 60204–1 / EN 60335-2-40

• Manufacturing Quality Standards UNI – EN ISO 9001:2004

To avoid any losses, the unit will be tested at full load in the factory (at the nominal working conditions and water temperatures). The

chiller will be delivered to the job site completely assembled and charged with refrigerant and oil. The installation of the chiller must

comply with the manufacturer’s instructions for rigging and handling equipment.

The unit will be able to start up and operate (as standard) at full load with:

- outside air temperature from ............... °C to ............... °C

- evaporator leaving fluid temperature between ............... °C and ............... °C

Refrigerant Only HFC 134a can be used.

Performance Chiller shall supply the following performances:

• Number of chiller(s) : ............... unit(s)

• Cooling capacity for single chiller : ............... kW

• Power input for single chiller in cooling mode : ............... kW

• Heat exchanger entering water temperature in cooling mode : ............... °C

• Heat exchanger leaving water temperature in cooling mode : ............... °C

• Heat exchanger water flow : ............... l/s

• Nominal outside working ambient temperature in cooling mode : ............... °C

• Minimum full laod efficiency (EER): …………….. (kW/kW)

• Minimum part laod efficiency (ESEER): …………….. (kW/kW)

Operating voltage range should be 400V ±10%, 3ph, 50Hz (or 380V ±10%, 3ph, 60Hz) , voltage unbalance maximum 3%, without

neutral conductor and shall only have one power connection point.

Unit description Chiller shall include one or two independent refrigerant circuits, semi-hermetic type rotary single screw

compressors, refrigerant cooled inverter drive for each compressor, electronic expansion device (EEXV), direct expansion ‘shell & tube’

or PHE evaporator, air-cooled condenser section, R-134a refrigerant, lubrication system, motor starting components, discharge line

shut-off valve, suction line shut-off valve, control system and all components necessary for a safe and stable unit operation.

The chiller will be factory assembled on a robust base frame made of galvanized steel, protected by an epoxy paint.

Sound level and vibrations Sound pressure level at 1 meter distance in free field, semispheric conditions, shall not exceed

………dB(A). The sound pressure levels must be rated in accordance to ISO 3744 (other types of rating cannot be used).

Vibration on the base frame should not exceed 2 mm/s.

Dimensions Unit dimensions shall not exceed following indications:

- Unit length ............... mm

- Unit width ............... mm

- Unit height ............... mm

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