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Western Airconditioning Zeta Echos Technical Information Manual

Zeta echos air/water chillers and heat pumps
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Zeta Echos
air/water chillers and heat pumps
Technical information manual
Western Airconditioning B.V.
Tel. +31 (0) 33 247 78 00
www.western.nl

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Summary of Contents for Western Airconditioning Zeta Echos

  • Page 1 Zeta Echos air/water chillers and heat pumps Technical information manual Western Airconditioning B.V. Tel. +31 (0) 33 247 78 00 www.western.nl...
  • Page 2 Unit with tank and pumps ZETA ECHOS/DC Unit with recovery condenser ZETA ECHOS/DS Unit with desuperheater ZETA ECHO/LN Low-noise unit ZETA ECHOS/SLN Super low-noise unit ZETA ECHOS/LE Motocondensing unit ZETA ECHOS A High performance unit Western Airconditioning B.V. reserves the right to alter specifications...
  • Page 3 Heating capacity LE version Cooling capacity A version Heating capacity A version Total recovery capacity A version Operating limits Noise levels Overall dimensions, weights, clearance areas and hydraulic connections Installation guidelines Western Airconditioning B.V. reserves the right to alter specifications...

  • Page 4: Technical Features

    • Reduced volume and weight of the unit; • Easier maintenance. COOLING CIRCUIT Comprises: fluid valve, feeding plug, fluid sight glass, dehydrating filter, thermostatic expansion valve for pressure external control, high and low pressure switches and safety valve. Western Airconditioning B.V. reserves the right to alter specifications...

  • Page 5: Electrical Panel

    • high pressure safety valve; • compressor overtemperature protection; • fan overtemperature protection; • vane actuated mechanical flow switch (supplied as standard) TESTING The units are factory-tested and supplied complete with oil and refrigerant. Western Airconditioning B.V. reserves the right to alter specifications...
  • Page 6 ZETA ECHOS A: high performance unit Zeta Echos Class A carries the hallmark of energy-saving thanks to an EER of the chiller operation always greater than 3.1! There are 9 sizes available, with a capacity range from 44 to 135 kW, classified in full compliance with the regulations set by EUROVENT as high energy efficiency class.
  • Page 7 ZETA ECHOS /LE /HP: heat pump motocondensing unit In addition to the basic version ZETA ECHOS/HP, this unit has no evaporator and thermostatic valves fitted. The solenoid valve on the fluid line is supplied as standard. The unit is supplied without refrigerant charge.
  • Page 8 (using high acoustic impedance and sound-absorbent materials). ZETA ECHOS /SLN super low-noise unit beside the /LN version components, the coil surface is larger, fans have reduced speed and a turn regulator. Western Airconditioning B.V. reserves the right to alter specifications...
  • Page 9 “Select summer/winter mode with digital input” and “Double set point with digital input”, summer/winter mode can be selected only on the keypad while the double set point still uses the digital input, as per our standard. Western Airconditioning B.V. reserves the right to alter specifications...
  • Page 10 By default, both summer an d winter negative compensation is set, but this configuration can be modified from the microprocessor keyboard. Unless otherwise specified, default values are indicated in the graphics below. Western Airconditioning B.V. reserves the right to alter specifications...
  • Page 11 Western Airconditioning B.V. reserves the right to alter specifications...
  • Page 12 Variable flow pumps have become more widespread over the years to optimise air conditioning and cooling systems. Thanks to the inverter Driven Pump, Western Airconditioning offers an alternative method that differs from conventional layouts: a constant flow primary pump and a variable flow secondary pump.
  • Page 13 At the same time, the inverter’s control logic will reduce the flow rate, which will determine lower evaporator pressure drops and bring back the available head to the nominal Dp1 value. Western Airconditioning B.V. reserves the right to alter specifications...
  • Page 14 “minimum water content of the system” described in the relative chapter; the difference between the “minimum water content of the system” and the “minimum thermal flywheel” can instead be positioned in any area of the system. Western Airconditioning B.V. reserves the right to alter specifications...
  • Page 15 For cooling-only machines, if using ethylene glycol mixes, it is possible to reduce the “minimum thermal flywheel” based on the curves below. For scroll compressors: If the unit is in heat pump mode, the “minimum thermal flywheel” is not reduced even if there is glycol. Western Airconditioning B.V. reserves the right to alter specifications...
  • Page 16 Western Airconditioning B.V. reserves the right to alter specifications...
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  • Page 70: Hydraulic Connections

    - Connect the flow switch when supplied in the kit, following carefully the instructions provided with the units. START-UP AND MAINTENANCE - Strictly follow the instructions given in the use and maintenance manual. These operations must be carried out by qualified personnel only. Western Airconditioning B.V. reserves the right to alter specifications...
  • Page 71 Zeta Echos - 062014 Western Airconditioning B.V. De Wel 10, 3871 MV HOEVELAKEN Tel. +31 (0) 33 247 78 00 www.western.nl Western Airconditioning B.V. reserves the right to alter specifications...

This manual is also suitable for:

Zeta echos/hpZeta echos/stZeta echo/lnZeta echos/slnZeta echos/leZeta echos/dc ... Show all