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Table of Contents
Related Manuals for Unicla 150 Series
Summary of Contents for Unicla 150 Series
- Page 1 ® Compressor Fitting Guidelines for New Applications...
- Page 2 Copyright ©2007 All rights reserved No part of this document shall be reproduced in whole or in part without the permission of Unicla International Ltd. This includes reproduction or copies in any form or by any means including photocopying, printing or electronic media.
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Page 3: Table Of Contents
………………………………………………………………… 9, 10 11 Other features & performance information……………………………………… 11 Note: This booklet is designed to assist the installing technician to ensure Unicla guidelines and procedures have been followed during the installation and initial commissioning of Unicla compressors. Please read carefully and if further information is required please visit: www.unicla.hk... -
Page 4: Compressor Fitting Information
The following guidelines must be strictly adhered to. The Unicla warranty against faulty product (materials and workmanship) is subject to system compatibility and refrigerant and lubricant compatibility. -
Page 5: Mounting
The tension must be within the manufacturers’ guidelines for the specific belt used to drive the compressor, or in the absence of this information, Unicla recommends belt deflection of 10 - 20 mm /meter after tensioning, or 50kg of tension for most applications. -
Page 6: Compressor Speed
5. Compressor speed a) Speed limit When fitting any compressor from the Unicla range, ensure that the compressor speed does not exceed the specified limit. This includes both continuous speed and momentary speed. Crank to compressor drive ratios are recommended to not exceed 1.2:1 to ensure maximisation of compressor clutch and pulley durability. - Page 7 To determine oil quantity required Unicla recommends a calculation as a percentage of refrigerant charge as follows: - 20 % for Unicla A group compressors (90,120,150,170 series) in standard applications - 30 % for Unicla B group compressors (200,330,440,550 series) in applications where suction and discharge lines exceed 6m in length Example: Calculate oil charge as 20% of refrigerant charge, 3 kg charge = 3000 g x 20% = 600 ml (cc) of oil.
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Page 8: Compressor Selection
Too often the nominated capacity of the evaporator and the compressor are ideally matched, only to be compromised by undersized piping in the suction line. The following tables outline the required pipe or hose sizes for each Unicla compressor model under common speed and capacity ratings. -
Page 9: Recommended Suction Line Pipe Size
9. Recommended suction line pipe size The following charts give the suction pipe size recommendations for Unicla compressors. Unicla Series Compressors 3 m Pipe Length 6 m Pipe Length 10 m Pipe Length 12 m Pipe Length 18 m Pipe Length... - Page 10 Discharge line pipe or hose sizes should be calculated in consideration of the nominated suction line sizes. In most applications this is set at one size under the suction line size. Reference tables showing this are available from Unicla upon request.
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Page 11: System Validation
The following chart shows normal superheat/discharge line temperatures taken from factory test data. This gives a guideline of what to expect on the discharge line for each Unicla compressor, and a ‘target’ to aim for (marked in red) in relation to the superheat component for each compressor. - Page 12 To determine the performance of a Unicla UWX compressor in a specific application, the following Compressor Operation Analysis Report will assist in the collection of the necessary data. Normal Superheat/Discharge Line Temperature Chart Discharge Condensing Condensing Evaporator Compressor Superheat Temp ˚C Pressure Kgf/cm Temp ˚C...
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Page 13: Other Features & Performance Information
Copyright ©2007 All rights reserved No part of this document shall be reproduced in whole or in part without the permission of Unicla International Ltd. This includes reproduction or copies in any form or by any means including photocopying, printing or electronic media. - Page 14 ® Unicla International Limited Unit 1209-1210, 12F Manhattan Centre, 8 Kwai Cheong Rd, Kwai Chung, N.T., Hong Kong Phone (852) 2422 0180 Fax (852) 2422 0680 Email: sales@unicla.hk Website: www.unicla.hk Unicla Cat. No. BO903...
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