MECHANICAL WATER METER DATA SHEET
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Mechanical water meters WF.240.. Mechanical meter for measuring consumption of cold and hot water Continuous flow Q3 = 2.5 m3/h or 4 m3/h Optional pulse add-on module No upstream or downstream setting paths required Any mounting position (horizontal or vertical) Totalizer of accumulated consumption in cubic meters and liters Smart Infrast

Use The impeller type cold and hot water meter is compact in design and used to correctly acquire physical cold or hot water consumption. The meter consists of a flow element and a totalizer. The meter acquires water consumption in: ● Domestic water systems for residential and non-residential buildings ● All types of water supply systems. Such systems are available, for example, in: ● Multi-family homes ● Office and administrative buildings Typical users: ● Service and billing providers ● Housing industry and housing cooperatives ● Building service companies and real estate agencies....

Water pressure drop [bar] Communication Add-on modules The water meters can be equipped with add-on modules. The following external pulse add-on modules are available: Description Ordering number Reed contact Reed contact and NAMUR circuit No tools are required to configure the pulse add-on module. Remote readout A contact generates a pulse as soon as 10 liters of water pass through the meter (standard pule valency: 1 pulse = 10 liters). A cable break or short-circuit is detected when using the add-on module with NAMUR circuit; the receiving unit recognizes and registers it. Smart...

Type summary Features of the water meters listed below: Type Rated pressure Cold water meters Options Ordering number Q3 = 2.5 m /h, mounting length 80 mm, DN15, Connecting thread G ¾", up to 50° C Q3 = 2.5 m3/h, mounting length 110 mm, DN15, Connecting thread G ¾", up to 50° C Q3 = 4 m3/h, mounting length S55560-F112 130 mm, DN20, Connecting thread G 1", up to 50° C Hot water meters Options Ordering number Q3 = 2.5 m3/h, mounting length 80 mm, DN15, Connecting thread G ¾", up to 90° C Q3 = 2.5 m3/h, mounting length 110 mm, DN15, Connecting thread G ¾", up to 90° C Q3 = 4 m3/h, mounting...

Spacers Description Ordering number Ordering number Adapter set G ¾" to 1", consisting off: 2 adapter pieces G ¾" to G 1" 2 flat gaskets 2 mm, 1" Extension set 110 mm G ¾" to 130 mm G ¾", consisting of: 1 extension 27 mm 2 flat gaskets 2 mm, ¾" 1 gasket made of copper ¾" x 1.5 mm Extension set 110 mm G ¾" to 165 mm G ¾", consisting of: 1 extension 27 mm 1 extension 42 mm 2 flat gaskets 2 mm, ¾" 1 gasket made of copper ¾" x 1.5 mm Extension set 110 mm G ¾" to 190 mm G 1", consisting of: 2 adapter pieces from 110 mm G ¾" to 190 mm G 1" 2 flat gaskets 2 mm, ¾" 1 gasket made of copper ¾" x 1.5...

Scope of delivery Mounting and installation instructions are included with the water meters and add-on modules. Language The instructions are supplied in the following languages: Bulgarian, German, English, Finnish, French, Greek, Italian, Croatian, Lithuanian, Dutch, Norwegian, Polish, Slovakian, Slovenian, Spanish, Czech, Turkish, and Hungarian. Equipment combinations The water meters communicate via a pulse module and can be used together with the following components: Description M-bus pulse adapter Consumption data interface (Synco living) Impeller type heat meter Ultrasonic compact...

The water meter can be installed in any position. Make sure that there is sufficient space for installation. ● The meter must be easily accessible for readout. ● Settling paths are not required, neither upstream of nor downstream from the meter. ● Install a spacer in place of the meter during construction. ● Thoroughly flush the plant prior to installing the meter. ● Mount the flow measuring section between 2 shutoff valves with the arrow pointing in the direction of flow. ● Horizontal installation is preferred over vertical installation due to the higher metrological class. ● Comply with...

Technical data Cold/hot water meter Continuous flow Q3 Mounting length Overload flow rate Q4 Minimum flow rate Q1 ● Horizontal (R80) ● Vertical (R63) Transitional flow rate Q2 ● Horizontal (R80) ● Vertical (R63) Response threshold ● Vertical *) Meters with other metrological classes are available upon request Measuring range ● Cold water meters ● Heat meter Rated pressure Mounting position Horizontal installation with the face pointed up Horizontal installation with the face pointed to the side Vertical installation with the direction of flow pointing up Vertical installation with the...

Communication Reed contact WFZ44 Cable length Cable diameter Dielectric strength against ground Protection class Reed contact and NAMUR circuit WFZ43 Pulse value Minimum pulse length Cable length Cable diameter Dielectric strength against ground Protection class Ambient conditions Transportation EN 60721-3-2 Climatic conditions Mechanical conditions Smart Infrastructure

Standards, directives and approvals Product standards 2014/32/EU (measuring instruments), Appendix MI-001 Mechanical class M1 ISO 4064-1 Accuracy class 2 (OIML R49-1) Environment class B Electromagnetic class E1 Flow profile sensitivity class U0 D0 Temperature class ● T50 (cold water meter) ● T30/90 (hot water meter) Environmental compatibility Product environmental declaration (includes data on RoHS compliance, compositions, packaging, environmental benefit, disposal) Dimensions WxHxD Housing material Flow measuring section Housing colors Totalizer Weight Device packed complete with...

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Issued by Siemens Switzerland Ltd Smart Infrastructure Global Headquarters Theilerstrasse 1a CH-6300 Zug Tel. +41 58 724 2424 www.siemens.com/buildingtechnologies 12 Smart Infrastructure Document ID © Siemens Switzerland Ltd, 2020 Technical specifications and availability subject to change without notice.