User Manual

ManualsBrandsSiemens ManualsSensors flowEU Declaration QVE1902...

CM1N1596en

2017-02-16

Building Technologies

596

Flow switch

For liquids in piping DN 10…25

QVE1902.010

QVE1902.015

QVE1902.020

QVE1902.025

· Contact load: max. AC 230 V, 1 A, 26 VA

DC 48 V, 1 A, 20 W

· Nominal pressure PN10

· Manual contact setting (NO/NC contact)

· Housing protection type IP 65 / Protection class II

· Maintenance free

Use

In HVAC plants to monitor the flow of liquid medium in hydraulic systems, in

particular, refrigeration, heat pump and heating plants, e.g. for evaporators, boilers,

heat exchangers, etc.

Summary of content (6 pages)

PAGE 1
s Flow switch For liquids in piping DN 10…25 596 QVE1902.010 QVE1902.015 QVE1902.020 QVE1902.025 · Contact load: max. AC 230 V, 1 A, 26 VA DC 48 V, 1 A, 20 W · Nominal pressure PN10 · Manual contact setting (NO/NC contact) · Housing protection type IP 65 / Protection class II · Maintenance free Use In HVAC plants to monitor the flow of liquid medium in hydraulic systems, in particular, refrigeration, heat pump and heating plants, e.g. for evaporators, boilers, heat exchangers, etc.
PAGE 2
Type summary Type / ASN QVE1902.010 QVE1902.015 QVE1902.020 QVE1902.025 Order number (SSN) S55720-S199 S55720-S200 S55720-S201 S55720-S202 Name Flow switch Flow switch Flow switch Flow switch Ordering When ordering, please specify the quantity, type, and product name. Sizing Switching value table for water at 20 °C Type (ASN) DN QVE1902.010 QVE1902.015 QVE1902.020 QVE1902.025 DN 10 DN 15 DN 20 DN 25 Threading Qmax [l/min] [inch] ⅜ ½ ¾ 1 20 30 80 130 Factory setting (range) [l/min] 3.2 (2.8…3.
PAGE 3
Mounting instructions · A smoothing section of at least 10 x or 5 x the pipe diameter respectively must be planned prior to and after intended location. · First, clean the pipe system where the flow switch is installed and remove any magnetic particles, e.g. wielding residue. · Do not use grease or oils to seal the flow switch or its piping.
PAGE 4
Commissioning notes Contact type factory setting NO or NC contact Setting the switching unit The switching unit is factory set as a make contact, i.e. the reed contact opens if the set switching point is breached.
PAGE 5
Disposal The device is considered an electronics device for disposal in terms of European Directive 2012/19/EU and may not be disposed of as domestic garbage. · Dispose of the device through channels provided for this purpose. · Comply with all local and currently applicable laws and regulations.
PAGE 6
Dimensions and weight Dimensions in mm Type (ASN) QVE1902.010 QVE1902.015 QVE1902.020 QVE1902.025 Nominal width dia DN 10 DN 15 DN 20 DN 25 Qmax [l/min] 20 30 80 130 Published by: Siemens Switzerland Ltd. Building Technologies Division International Headquarters Gubelstrasse 22 6301 Zug Switzerland Tel. +41 41-724 24 24 www.siemens.com/buildingtechnologies G [inch] G⅜ G½ G¾ G1 L [mm] 11 11 15 15 h [mm] 41.5 41.5 46.0 55.5 H [mm] 101.5 101.5 105.5 115.