W A S E R I E S R E C I P R O C A T I N G C O M P R E S S O R

* Some optional items are included in this photo.

WA S E R IE S R E C IP RO C AT IN G C OM P R E S S OR

WA SERIESReciprocating Compressor / 　　　　Open TypeSingle Stage

PD132 01001609-16.09.

The content of this pamphlet may change without advance notice due to improvements to the product.* Mayekawa and MYCOM are registered trademarks of Mayekawa Mfg. Co., Ltd.

[Head Office]: 3-14-15 Botan, Koto-ku, Tokyo 135-8482, JAPAN 　　　　　　　TEL:(81)3-3642-8181 FAX:(81)3-3643-7094[ I n q u i r i e s ] : global-contact@mayekawa.co.jp

MAYEKAWA MFG.CO.,LTD.

http://www.mayekawa.com

Fluorocarbon refrigerants

Natural refrigerants

AmmoniaPropane

R 1 3 4 aR 4 0 4 AR 5 0 7 AR 2 3

Applications

High Reliability

With a high-pressure design suitable for use in air-cooled condensing units for fluorocarbon refrigerants, the model operates over a wide range of temperature and serves in small- to medium-scale refrigerating and freezing applications.

A long-selling model with high reliability and track record, designed for tough applications subject to load fluctuation.

* Please consult us for further details.

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4WA6WA8WA

4WA6WA 8WA

▶Ammonia Condensing temperature：40℃Suction Superheat：0℃

Rotation speed：970rpmLiguid Subcooling：5℃

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▶R404A Condensing temperature：40℃Suction Superheat：20℃

Rotation speed：970rpmLiguid Subcooling：5℃

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▶R134a Condensing temperature：40℃Suction Superheat：20℃

Rotation speed：970rpmLiguid Subcooling：5℃

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▶Propane Condensing temperature：40℃Suction Superheat：10℃

Rotation speed：970rpmLiguid Subcooling：5℃

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Item4WA 6WA 8WA

Refrigerant Ammonia / Propane ／ HFCs （R134a、R404A、R507A、R23*2）

Compressor type Reciprocating, Open Type

Number of cylinders 4 6 8

Bore mm 95

Stroke mm 76

Displacement*3 m³/h 125 188 251

Rotation speed rpm 800-1500*4

Drive method Direct drive / V-belt

Capacity control % 100/50 100/66/33 100/75/50/25

Model*1（N/P/F）

Model（P/F） Weight（kg） W（mm） L（mm） H（mm）

4WA 460 760 835 715

6WA 555 865 960 725

8WA 645 910 980 755

Model（N） Weight（kg） W（mm） L（mm） H（mm）

4WA 475 875 835 735

6WA 570 1050 960 855

8WA 670 1020 980 860

* Some optional items are included in this photo.

*1. Specify the refrigerant by adding a prefix to the type code (N = Ammonia / P = Propane / F = Fluorocarbons).*2. If R23 is to be used as the refrigerant, the machine will come with special specifications. Please contact us for detailed information.　*3. Displacement at 970 rpm*4. The range of rotation speed varies by operating conditions. Please refer to the ranges of use stated in the operating instructions. * The outer dimension drawings illustrate the 6-cylinder model.

* The stop valve, companion flange, flywheel, V-pulley, and safety valve are not included.　* The oil cooler is included.

[Usable refrigerants]

Suitable for a wide range of applicationsLong-selling model for small- to medium-scale facilities

Reciprocating Compressor[Single Stage] Open Type

WA-SERIES

Specifications

[Water cooled type (Ammonia)][Air cooled type (Propane, HFCs)]

Outer dimensions

Performance charts